| /** |
| * @file definition of host message ring functionality |
| * Provides type definitions and function prototypes used to link the |
| * DHD OS, bus, and protocol modules. |
| * |
| * Copyright (C) 1999-2017, Broadcom Corporation |
| * |
| * Unless you and Broadcom execute a separate written software license |
| * agreement governing use of this software, this software is licensed to you |
| * under the terms of the GNU General Public License version 2 (the "GPL"), |
| * available at http://www.broadcom.com/licenses/GPLv2.php, with the |
| * following added to such license: |
| * |
| * As a special exception, the copyright holders of this software give you |
| * permission to link this software with independent modules, and to copy and |
| * distribute the resulting executable under terms of your choice, provided that |
| * you also meet, for each linked independent module, the terms and conditions of |
| * the license of that module. An independent module is a module which is not |
| * derived from this software. The special exception does not apply to any |
| * modifications of the software. |
| * |
| * Notwithstanding the above, under no circumstances may you combine this |
| * software in any way with any other Broadcom software provided under a license |
| * other than the GPL, without Broadcom's express prior written consent. |
| * |
| * |
| * <<Broadcom-WL-IPTag/Open:>> |
| * |
| * $Id: dhd_msgbuf.c 664367 2017-03-23 09:23:22Z $ |
| */ |
| |
| |
| #include <typedefs.h> |
| #include <osl.h> |
| |
| #include <bcmutils.h> |
| #include <bcmmsgbuf.h> |
| #include <bcmendian.h> |
| |
| #include <dngl_stats.h> |
| #include <dhd.h> |
| #include <dhd_proto.h> |
| |
| #include <dhd_bus.h> |
| |
| #include <dhd_dbg.h> |
| #include <siutils.h> |
| |
| |
| #include <dhd_flowring.h> |
| |
| #include <pcie_core.h> |
| #include <bcmpcie.h> |
| #include <dhd_pcie.h> |
| |
| #if defined(DHD_LB) |
| #include <linux/cpu.h> |
| #include <bcm_ring.h> |
| #define DHD_LB_WORKQ_SZ (8192) |
| #define DHD_LB_WORKQ_SYNC (16) |
| #define DHD_LB_WORK_SCHED (DHD_LB_WORKQ_SYNC * 2) |
| #endif /* DHD_LB */ |
| |
| |
| /** |
| * Host configures a soft doorbell for d2h rings, by specifying a 32bit host |
| * address where a value must be written. Host may also interrupt coalescing |
| * on this soft doorbell. |
| * Use Case: Hosts with network processors, may register with the dongle the |
| * network processor's thread wakeup register and a value corresponding to the |
| * core/thread context. Dongle will issue a write transaction <address,value> |
| * to the PCIE RC which will need to be routed to the mapped register space, by |
| * the host. |
| */ |
| /* #define DHD_D2H_SOFT_DOORBELL_SUPPORT */ |
| |
| /* Dependency Check */ |
| #if defined(IOCTLRESP_USE_CONSTMEM) && defined(DHD_USE_STATIC_CTRLBUF) |
| #error "DHD_USE_STATIC_CTRLBUF is NOT working with DHD_USE_OSLPKT_FOR_RESPBUF" |
| #endif /* IOCTLRESP_USE_CONSTMEM && DHD_USE_STATIC_CTRLBUF */ |
| |
| #define RETRIES 2 /* # of retries to retrieve matching ioctl response */ |
| |
| #define DEFAULT_RX_BUFFERS_TO_POST 256 |
| #define RXBUFPOST_THRESHOLD 32 |
| #define RX_BUF_BURST 32 /* Rx buffers for MSDU Data */ |
| |
| #define DHD_STOP_QUEUE_THRESHOLD 200 |
| #define DHD_START_QUEUE_THRESHOLD 100 |
| |
| #define RX_DMA_OFFSET 8 /* Mem2mem DMA inserts an extra 8 */ |
| #define IOCT_RETBUF_SIZE (RX_DMA_OFFSET + WLC_IOCTL_MAXLEN) |
| #define FLOWRING_SIZE (H2DRING_TXPOST_MAX_ITEM * H2DRING_TXPOST_ITEMSIZE) |
| |
| /* flags for ioctl pending status */ |
| #define MSGBUF_IOCTL_ACK_PENDING (1<<0) |
| #define MSGBUF_IOCTL_RESP_PENDING (1<<1) |
| |
| #define DMA_ALIGN_LEN 4 |
| |
| #define DMA_D2H_SCRATCH_BUF_LEN 8 |
| #define DMA_XFER_LEN_LIMIT 0x400000 |
| |
| #define DHD_FLOWRING_IOCTL_BUFPOST_PKTSZ 8192 |
| |
| #define DHD_FLOWRING_MAX_EVENTBUF_POST 8 |
| #define DHD_FLOWRING_MAX_IOCTLRESPBUF_POST 8 |
| |
| #define DHD_PROT_FUNCS 37 |
| |
| /* Length of buffer in host for bus throughput measurement */ |
| #define DHD_BUS_TPUT_BUF_LEN 2048 |
| |
| #define TXP_FLUSH_NITEMS |
| |
| /* optimization to write "n" tx items at a time to ring */ |
| #define TXP_FLUSH_MAX_ITEMS_FLUSH_CNT 48 |
| |
| #define RING_NAME_MAX_LENGTH 24 |
| |
| |
| struct msgbuf_ring; /* ring context for common and flow rings */ |
| |
| /** |
| * PCIE D2H DMA Complete Sync Modes |
| * |
| * Firmware may interrupt the host, prior to the D2H Mem2Mem DMA completes into |
| * Host system memory. A WAR using one of 3 approaches is needed: |
| * 1. Dongle places a modulo-253 seqnum in last word of each D2H message |
| * 2. XOR Checksum, with epoch# in each work item. Dongle builds an XOR checksum |
| * writes in the last word of each work item. Each work item has a seqnum |
| * number = sequence num % 253. |
| * |
| * 3. Read Barrier: Dongle does a host memory read access prior to posting an |
| * interrupt, ensuring that D2H data transfer indeed completed. |
| * 4. Dongle DMA's all indices after producing items in the D2H ring, flushing |
| * ring contents before the indices. |
| * |
| * Host does not sync for DMA to complete with option #3 or #4, and a noop sync |
| * callback (see dhd_prot_d2h_sync_none) may be bound. |
| * |
| * Dongle advertizes host side sync mechanism requirements. |
| */ |
| #define PCIE_D2H_SYNC |
| |
| #if defined(PCIE_D2H_SYNC) |
| #define PCIE_D2H_SYNC_WAIT_TRIES (512UL) |
| #define PCIE_D2H_SYNC_NUM_OF_STEPS (3UL) |
| #define PCIE_D2H_SYNC_DELAY (50UL) /* in terms of usecs */ |
| |
| /** |
| * Custom callback attached based upon D2H DMA Sync mode advertized by dongle. |
| * |
| * On success: return cmn_msg_hdr_t::msg_type |
| * On failure: return 0 (invalid msg_type) |
| */ |
| typedef uint8 (* d2h_sync_cb_t)(dhd_pub_t *dhd, struct msgbuf_ring *ring, |
| volatile cmn_msg_hdr_t *msg, int msglen); |
| #endif /* PCIE_D2H_SYNC */ |
| |
| |
| /* |
| * +---------------------------------------------------------------------------- |
| * |
| * RingIds and FlowId are not equivalent as ringids include D2H rings whereas |
| * flowids do not. |
| * |
| * Dongle advertizes the max H2D rings, as max_sub_queues = 'N' which includes |
| * the H2D common rings as well as the (N-BCMPCIE_H2D_COMMON_MSGRINGS) flowrings |
| * |
| * Here is a sample mapping for (based on PCIE Full Dongle Rev5) where, |
| * BCMPCIE_H2D_COMMON_MSGRINGS = 2, i.e. 2 H2D common rings, |
| * BCMPCIE_COMMON_MSGRINGS = 5, i.e. include 3 D2H common rings. |
| * |
| * H2D Control Submit RingId = 0 FlowId = 0 reserved never allocated |
| * H2D RxPost Submit RingId = 1 FlowId = 1 reserved never allocated |
| * |
| * D2H Control Complete RingId = 2 |
| * D2H Transmit Complete RingId = 3 |
| * D2H Receive Complete RingId = 4 |
| * |
| * H2D TxPost FLOWRING RingId = 5 FlowId = 2 (1st flowring) |
| * H2D TxPost FLOWRING RingId = 6 FlowId = 3 (2nd flowring) |
| * H2D TxPost FLOWRING RingId = 5 + (N-1) FlowId = (N-1) (Nth flowring) |
| * |
| * When TxPost FlowId(s) are allocated, the FlowIds [0..FLOWID_RESERVED) are |
| * unused, where FLOWID_RESERVED is BCMPCIE_H2D_COMMON_MSGRINGS. |
| * |
| * Example: when a system supports 4 bc/mc and 128 uc flowrings, with |
| * BCMPCIE_H2D_COMMON_MSGRINGS = 2, and BCMPCIE_H2D_COMMON_MSGRINGS = 5, and the |
| * FlowId values would be in the range [2..133] and the corresponding |
| * RingId values would be in the range [5..136]. |
| * |
| * The flowId allocator, may chose to, allocate Flowids: |
| * bc/mc (per virtual interface) in one consecutive range [2..(2+VIFS)) |
| * X# of uc flowids in consecutive ranges (per station Id), where X is the |
| * packet's access category (e.g. 4 uc flowids per station). |
| * |
| * CAUTION: |
| * When DMA indices array feature is used, RingId=5, corresponding to the 0th |
| * FLOWRING, will actually use the FlowId as index into the H2D DMA index, |
| * since the FlowId truly represents the index in the H2D DMA indices array. |
| * |
| * Likewise, in the D2H direction, the RingId - BCMPCIE_H2D_COMMON_MSGRINGS, |
| * will represent the index in the D2H DMA indices array. |
| * |
| * +---------------------------------------------------------------------------- |
| */ |
| |
| /* First TxPost Flowring Id */ |
| #define DHD_FLOWRING_START_FLOWID BCMPCIE_H2D_COMMON_MSGRINGS |
| |
| /* Determine whether a ringid belongs to a TxPost flowring */ |
| #define DHD_IS_FLOWRING(ringid) \ |
| ((ringid) >= BCMPCIE_COMMON_MSGRINGS) |
| |
| /* Convert a H2D TxPost FlowId to a MsgBuf RingId */ |
| #define DHD_FLOWID_TO_RINGID(flowid) \ |
| (BCMPCIE_COMMON_MSGRINGS + ((flowid) - BCMPCIE_H2D_COMMON_MSGRINGS)) |
| |
| /* Convert a MsgBuf RingId to a H2D TxPost FlowId */ |
| #define DHD_RINGID_TO_FLOWID(ringid) \ |
| (BCMPCIE_H2D_COMMON_MSGRINGS + ((ringid) - BCMPCIE_COMMON_MSGRINGS)) |
| |
| /* Convert a H2D MsgBuf RingId to an offset index into the H2D DMA indices array |
| * This may be used for the H2D DMA WR index array or H2D DMA RD index array or |
| * any array of H2D rings. |
| */ |
| #define DHD_H2D_RING_OFFSET(ringid) \ |
| ((DHD_IS_FLOWRING(ringid)) ? DHD_RINGID_TO_FLOWID(ringid) : (ringid)) |
| |
| /* Convert a D2H MsgBuf RingId to an offset index into the D2H DMA indices array |
| * This may be used for the D2H DMA WR index array or D2H DMA RD index array or |
| * any array of D2H rings. |
| */ |
| #define DHD_D2H_RING_OFFSET(ringid) \ |
| ((ringid) - BCMPCIE_H2D_COMMON_MSGRINGS) |
| |
| /* Convert a D2H DMA Indices Offset to a RingId */ |
| #define DHD_D2H_RINGID(offset) \ |
| ((offset) + BCMPCIE_H2D_COMMON_MSGRINGS) |
| |
| |
| #define DHD_DMAH_NULL ((void*)NULL) |
| |
| /* |
| * Pad a DMA-able buffer by an additional cachline. If the end of the DMA-able |
| * buffer does not occupy the entire cacheline, and another object is placed |
| * following the DMA-able buffer, data corruption may occur if the DMA-able |
| * buffer is used to DMAing into (e.g. D2H direction), when HW cache coherency |
| * is not available. |
| */ |
| #if defined(L1_CACHE_BYTES) |
| #define DHD_DMA_PAD (L1_CACHE_BYTES) |
| #else |
| #define DHD_DMA_PAD (128) |
| #endif |
| |
| /* Used in loopback tests */ |
| typedef struct dhd_dmaxfer { |
| dhd_dma_buf_t srcmem; |
| dhd_dma_buf_t dstmem; |
| uint32 srcdelay; |
| uint32 destdelay; |
| uint32 len; |
| bool in_progress; |
| } dhd_dmaxfer_t; |
| |
| /** |
| * msgbuf_ring : This object manages the host side ring that includes a DMA-able |
| * buffer, the WR and RD indices, ring parameters such as max number of items |
| * an length of each items, and other miscellaneous runtime state. |
| * A msgbuf_ring may be used to represent a H2D or D2H common ring or a |
| * H2D TxPost ring as specified in the PCIE FullDongle Spec. |
| * Ring parameters are conveyed to the dongle, which maintains its own peer end |
| * ring state. Depending on whether the DMA Indices feature is supported, the |
| * host will update the WR/RD index in the DMA indices array in host memory or |
| * directly in dongle memory. |
| */ |
| typedef struct msgbuf_ring { |
| bool inited; |
| uint16 idx; /* ring id */ |
| uint16 rd; /* read index */ |
| uint16 curr_rd; /* read index for debug */ |
| uint16 wr; /* write index */ |
| uint16 max_items; /* maximum number of items in ring */ |
| uint16 item_len; /* length of each item in the ring */ |
| sh_addr_t base_addr; /* LITTLE ENDIAN formatted: base address */ |
| dhd_dma_buf_t dma_buf; /* DMA-able buffer: pa, va, len, dmah, secdma */ |
| uint32 seqnum; /* next expected item's sequence number */ |
| #ifdef TXP_FLUSH_NITEMS |
| void *start_addr; |
| /* # of messages on ring not yet announced to dongle */ |
| uint16 pend_items_count; |
| #endif /* TXP_FLUSH_NITEMS */ |
| uchar name[RING_NAME_MAX_LENGTH]; |
| } msgbuf_ring_t; |
| |
| #define DHD_RING_BGN_VA(ring) ((ring)->dma_buf.va) |
| #define DHD_RING_END_VA(ring) \ |
| ((uint8 *)(DHD_RING_BGN_VA((ring))) + \ |
| (((ring)->max_items - 1) * (ring)->item_len)) |
| |
| |
| |
| /** DHD protocol handle. Is an opaque type to other DHD software layers. */ |
| typedef struct dhd_prot { |
| osl_t *osh; /* OSL handle */ |
| uint16 rxbufpost; |
| uint16 max_rxbufpost; |
| uint16 max_eventbufpost; |
| uint16 max_ioctlrespbufpost; |
| uint16 cur_event_bufs_posted; |
| uint16 cur_ioctlresp_bufs_posted; |
| |
| /* Flow control mechanism based on active transmits pending */ |
| uint16 active_tx_count; /* increments on every packet tx, and decrements on tx_status */ |
| uint16 max_tx_count; |
| uint16 txp_threshold; /* optimization to write "n" tx items at a time to ring */ |
| |
| /* MsgBuf Ring info: has a dhd_dma_buf that is dynamically allocated */ |
| msgbuf_ring_t h2dring_ctrl_subn; /* H2D ctrl message submission ring */ |
| msgbuf_ring_t h2dring_rxp_subn; /* H2D RxBuf post ring */ |
| msgbuf_ring_t d2hring_ctrl_cpln; /* D2H ctrl completion ring */ |
| msgbuf_ring_t d2hring_tx_cpln; /* D2H Tx complete message ring */ |
| msgbuf_ring_t d2hring_rx_cpln; /* D2H Rx complete message ring */ |
| |
| msgbuf_ring_t *h2d_flowrings_pool; /* Pool of preallocated flowings */ |
| dhd_dma_buf_t flowrings_dma_buf; /* Contiguous DMA buffer for flowrings */ |
| uint16 h2d_rings_total; /* total H2D (common rings + flowrings) */ |
| |
| uint32 rx_dataoffset; |
| |
| dhd_mb_ring_t mb_ring_fn; /* called when dongle needs to be notified of new msg */ |
| |
| /* ioctl related resources */ |
| uint8 ioctl_state; |
| int16 ioctl_status; /* status returned from dongle */ |
| uint16 ioctl_resplen; |
| dhd_ioctl_recieved_status_t ioctl_received; |
| uint curr_ioctl_cmd; |
| dhd_dma_buf_t retbuf; /* For holding ioctl response */ |
| dhd_dma_buf_t ioctbuf; /* For holding ioctl request */ |
| |
| dhd_dma_buf_t d2h_dma_scratch_buf; /* For holding d2h scratch */ |
| |
| /* DMA-able arrays for holding WR and RD indices */ |
| uint32 rw_index_sz; /* Size of a RD or WR index in dongle */ |
| dhd_dma_buf_t h2d_dma_indx_wr_buf; /* Array of H2D WR indices */ |
| dhd_dma_buf_t h2d_dma_indx_rd_buf; /* Array of H2D RD indices */ |
| dhd_dma_buf_t d2h_dma_indx_wr_buf; /* Array of D2H WR indices */ |
| dhd_dma_buf_t d2h_dma_indx_rd_buf; /* Array of D2H RD indices */ |
| |
| dhd_dma_buf_t host_bus_throughput_buf; /* bus throughput measure buffer */ |
| |
| dhd_dma_buf_t *flowring_buf; /* pool of flow ring buf */ |
| uint32 flowring_num; |
| |
| #if defined(PCIE_D2H_SYNC) |
| d2h_sync_cb_t d2h_sync_cb; /* Sync on D2H DMA done: SEQNUM or XORCSUM */ |
| ulong d2h_sync_wait_max; /* max number of wait loops to receive one msg */ |
| ulong d2h_sync_wait_tot; /* total wait loops */ |
| #endif /* PCIE_D2H_SYNC */ |
| |
| dhd_dmaxfer_t dmaxfer; /* for test/DMA loopback */ |
| |
| uint16 ioctl_seq_no; |
| uint16 data_seq_no; |
| uint16 ioctl_trans_id; |
| void *pktid_map_handle; /* a pktid maps to a packet and its metadata */ |
| bool metadata_dbg; |
| void *pktid_map_handle_ioctl; |
| |
| /* Applications/utilities can read tx and rx metadata using IOVARs */ |
| uint16 rx_metadata_offset; |
| uint16 tx_metadata_offset; |
| |
| |
| #if defined(DHD_D2H_SOFT_DOORBELL_SUPPORT) |
| /* Host's soft doorbell configuration */ |
| bcmpcie_soft_doorbell_t soft_doorbell[BCMPCIE_D2H_COMMON_MSGRINGS]; |
| #endif /* DHD_D2H_SOFT_DOORBELL_SUPPORT */ |
| #if defined(DHD_LB) |
| /* Work Queues to be used by the producer and the consumer, and threshold |
| * when the WRITE index must be synced to consumer's workq |
| */ |
| #if defined(DHD_LB_TXC) |
| uint32 tx_compl_prod_sync ____cacheline_aligned; |
| bcm_workq_t tx_compl_prod, tx_compl_cons; |
| #endif /* DHD_LB_TXC */ |
| #if defined(DHD_LB_RXC) |
| uint32 rx_compl_prod_sync ____cacheline_aligned; |
| bcm_workq_t rx_compl_prod, rx_compl_cons; |
| #endif /* DHD_LB_RXC */ |
| #endif /* DHD_LB */ |
| } dhd_prot_t; |
| |
| /* Convert a dmaaddr_t to a base_addr with htol operations */ |
| static INLINE void dhd_base_addr_htolpa(sh_addr_t *base_addr, dmaaddr_t pa); |
| |
| /* APIs for managing a DMA-able buffer */ |
| static int dhd_dma_buf_audit(dhd_pub_t *dhd, dhd_dma_buf_t *dma_buf); |
| static int dhd_dma_buf_alloc(dhd_pub_t *dhd, dhd_dma_buf_t *dma_buf, uint32 buf_len); |
| static void dhd_dma_buf_reset(dhd_pub_t *dhd, dhd_dma_buf_t *dma_buf); |
| static void dhd_dma_buf_free(dhd_pub_t *dhd, dhd_dma_buf_t *dma_buf); |
| |
| /* msgbuf ring management */ |
| static int dhd_prot_ring_attach(dhd_pub_t *dhd, msgbuf_ring_t *ring, |
| const char *name, uint16 max_items, uint16 len_item, uint16 ringid); |
| static void dhd_prot_ring_init(dhd_pub_t *dhd, msgbuf_ring_t *ring); |
| static void dhd_prot_ring_reset(dhd_pub_t *dhd, msgbuf_ring_t *ring); |
| static void dhd_prot_ring_detach(dhd_pub_t *dhd, msgbuf_ring_t *ring); |
| |
| /* Pool of pre-allocated msgbuf_ring_t with DMA-able buffers for Flowrings */ |
| static int dhd_prot_flowrings_pool_attach(dhd_pub_t *dhd); |
| static void dhd_prot_flowrings_pool_reset(dhd_pub_t *dhd); |
| static void dhd_prot_flowrings_pool_detach(dhd_pub_t *dhd); |
| |
| /* Fetch and Release a flowring msgbuf_ring from flowring pool */ |
| static msgbuf_ring_t *dhd_prot_flowrings_pool_fetch(dhd_pub_t *dhd, |
| uint16 flowid); |
| /* see also dhd_prot_flowrings_pool_release() in dhd_prot.h */ |
| |
| /* Producer: Allocate space in a msgbuf ring */ |
| static void* dhd_prot_alloc_ring_space(dhd_pub_t *dhd, msgbuf_ring_t *ring, |
| uint16 nitems, uint16 *alloced, bool exactly_nitems); |
| static void* dhd_prot_get_ring_space(msgbuf_ring_t *ring, uint16 nitems, |
| uint16 *alloced, bool exactly_nitems); |
| |
| /* Consumer: Determine the location where the next message may be consumed */ |
| static uint8* dhd_prot_get_read_addr(dhd_pub_t *dhd, msgbuf_ring_t *ring, |
| uint32 *available_len); |
| |
| /* Producer (WR index update) or Consumer (RD index update) indication */ |
| static void dhd_prot_ring_write_complete(dhd_pub_t *dhd, msgbuf_ring_t *ring, |
| void *p, uint16 len); |
| static void dhd_prot_upd_read_idx(dhd_pub_t *dhd, msgbuf_ring_t *ring); |
| |
| /* Allocate DMA-able memory for saving H2D/D2H WR/RD indices */ |
| static INLINE int dhd_prot_dma_indx_alloc(dhd_pub_t *dhd, uint8 type, |
| dhd_dma_buf_t *dma_buf, uint32 bufsz); |
| |
| /* Set/Get a RD or WR index in the array of indices */ |
| /* See also: dhd_prot_dma_indx_init() */ |
| static void dhd_prot_dma_indx_set(dhd_pub_t *dhd, uint16 new_index, uint8 type, |
| uint16 ringid); |
| static uint16 dhd_prot_dma_indx_get(dhd_pub_t *dhd, uint8 type, uint16 ringid); |
| |
| /* Locate a packet given a pktid */ |
| static INLINE void *dhd_prot_packet_get(dhd_pub_t *dhd, uint32 pktid, uint8 pkttype, |
| bool free_pktid); |
| /* Locate a packet given a PktId and free it. */ |
| static INLINE void dhd_prot_packet_free(dhd_pub_t *dhd, void *pkt, uint8 pkttype, bool send); |
| |
| static int dhd_msgbuf_query_ioctl(dhd_pub_t *dhd, int ifidx, uint cmd, |
| void *buf, uint len, uint8 action); |
| static int dhd_msgbuf_set_ioctl(dhd_pub_t *dhd, int ifidx, uint cmd, |
| void *buf, uint len, uint8 action); |
| static int dhd_msgbuf_wait_ioctl_cmplt(dhd_pub_t *dhd, uint32 len, void *buf); |
| static int dhd_fillup_ioct_reqst(dhd_pub_t *dhd, uint16 len, uint cmd, |
| void *buf, int ifidx); |
| |
| /* Post buffers for Rx, control ioctl response and events */ |
| static uint16 dhd_msgbuf_rxbuf_post_ctrlpath(dhd_pub_t *dhd, bool event_buf, uint32 max_to_post); |
| static void dhd_msgbuf_rxbuf_post_ioctlresp_bufs(dhd_pub_t *pub); |
| static void dhd_msgbuf_rxbuf_post_event_bufs(dhd_pub_t *pub); |
| static void dhd_msgbuf_rxbuf_post(dhd_pub_t *dhd, bool use_rsv_pktid); |
| static int dhd_prot_rxbuf_post(dhd_pub_t *dhd, uint16 count, bool use_rsv_pktid); |
| |
| static void dhd_prot_return_rxbuf(dhd_pub_t *dhd, uint32 pktid, uint32 rxcnt); |
| |
| /* D2H Message handling */ |
| static int dhd_prot_process_msgtype(dhd_pub_t *dhd, msgbuf_ring_t *ring, uint8 *buf, uint32 len); |
| |
| /* D2H Message handlers */ |
| static void dhd_prot_noop(dhd_pub_t *dhd, void *msg); |
| static void dhd_prot_txstatus_process(dhd_pub_t *dhd, void *msg); |
| static void dhd_prot_ioctcmplt_process(dhd_pub_t *dhd, void *msg); |
| static void dhd_prot_ioctack_process(dhd_pub_t *dhd, void *msg); |
| static void dhd_prot_ringstatus_process(dhd_pub_t *dhd, void *msg); |
| static void dhd_prot_genstatus_process(dhd_pub_t *dhd, void *msg); |
| static void dhd_prot_rxcmplt_process(dhd_pub_t *dhd, void *msg); |
| static void dhd_prot_event_process(dhd_pub_t *dhd, void *msg); |
| |
| /* Loopback test with dongle */ |
| static void dmaxfer_free_dmaaddr(dhd_pub_t *dhd, dhd_dmaxfer_t *dma); |
| static int dmaxfer_prepare_dmaaddr(dhd_pub_t *dhd, uint len, uint srcdelay, |
| uint destdelay, dhd_dmaxfer_t *dma); |
| static void dhd_msgbuf_dmaxfer_process(dhd_pub_t *dhd, void *msg); |
| |
| /* Flowring management communication with dongle */ |
| static void dhd_prot_flow_ring_create_response_process(dhd_pub_t *dhd, void *msg); |
| static void dhd_prot_flow_ring_delete_response_process(dhd_pub_t *dhd, void *msg); |
| static void dhd_prot_flow_ring_flush_response_process(dhd_pub_t *dhd, void *msg); |
| |
| /* Configure a soft doorbell per D2H ring */ |
| static void dhd_msgbuf_ring_config_d2h_soft_doorbell(dhd_pub_t *dhd); |
| static void dhd_prot_d2h_ring_config_cmplt_process(dhd_pub_t *dhd, void *msg); |
| |
| typedef void (*dhd_msgbuf_func_t)(dhd_pub_t *dhd, void *msg); |
| |
| /** callback functions for messages generated by the dongle */ |
| #define MSG_TYPE_INVALID 0 |
| |
| static dhd_msgbuf_func_t table_lookup[DHD_PROT_FUNCS] = { |
| dhd_prot_noop, /* 0 is MSG_TYPE_INVALID */ |
| dhd_prot_genstatus_process, /* MSG_TYPE_GEN_STATUS */ |
| dhd_prot_ringstatus_process, /* MSG_TYPE_RING_STATUS */ |
| NULL, |
| dhd_prot_flow_ring_create_response_process, /* MSG_TYPE_FLOW_RING_CREATE_CMPLT */ |
| NULL, |
| dhd_prot_flow_ring_delete_response_process, /* MSG_TYPE_FLOW_RING_DELETE_CMPLT */ |
| NULL, |
| dhd_prot_flow_ring_flush_response_process, /* MSG_TYPE_FLOW_RING_FLUSH_CMPLT */ |
| NULL, |
| dhd_prot_ioctack_process, /* MSG_TYPE_IOCTLPTR_REQ_ACK */ |
| NULL, |
| dhd_prot_ioctcmplt_process, /* MSG_TYPE_IOCTL_CMPLT */ |
| NULL, |
| dhd_prot_event_process, /* MSG_TYPE_WL_EVENT */ |
| NULL, |
| dhd_prot_txstatus_process, /* MSG_TYPE_TX_STATUS */ |
| NULL, |
| dhd_prot_rxcmplt_process, /* MSG_TYPE_RX_CMPLT */ |
| NULL, |
| dhd_msgbuf_dmaxfer_process, /* MSG_TYPE_LPBK_DMAXFER_CMPLT */ |
| NULL, /* MSG_TYPE_FLOW_RING_RESUME */ |
| NULL, /* MSG_TYPE_FLOW_RING_RESUME_CMPLT */ |
| NULL, /* MSG_TYPE_FLOW_RING_SUSPEND */ |
| NULL, /* MSG_TYPE_FLOW_RING_SUSPEND_CMPLT */ |
| NULL, /* MSG_TYPE_INFO_BUF_POST */ |
| NULL, /* MSG_TYPE_INFO_BUF_CMPLT */ |
| NULL, /* MSG_TYPE_H2D_RING_CREATE */ |
| NULL, /* MSG_TYPE_D2H_RING_CREATE */ |
| NULL, /* MSG_TYPE_H2D_RING_CREATE_CMPLT */ |
| NULL, /* MSG_TYPE_D2H_RING_CREATE_CMPLT */ |
| NULL, /* MSG_TYPE_H2D_RING_CONFIG */ |
| NULL, /* MSG_TYPE_D2H_RING_CONFIG */ |
| NULL, /* MSG_TYPE_H2D_RING_CONFIG_CMPLT */ |
| dhd_prot_d2h_ring_config_cmplt_process, /* MSG_TYPE_D2H_RING_CONFIG_CMPLT */ |
| NULL, /* MSG_TYPE_H2D_MAILBOX_DATA */ |
| NULL, /* MSG_TYPE_D2H_MAILBOX_DATA */ |
| }; |
| |
| |
| #ifdef DHD_RX_CHAINING |
| |
| #define PKT_CTF_CHAINABLE(dhd, ifidx, evh, prio, h_sa, h_da, h_prio) \ |
| (!ETHER_ISNULLDEST(((struct ether_header *)(evh))->ether_dhost) && \ |
| !ETHER_ISMULTI(((struct ether_header *)(evh))->ether_dhost) && \ |
| !eacmp((h_da), ((struct ether_header *)(evh))->ether_dhost) && \ |
| !eacmp((h_sa), ((struct ether_header *)(evh))->ether_shost) && \ |
| ((h_prio) == (prio)) && (dhd_ctf_hotbrc_check((dhd), (evh), (ifidx))) && \ |
| ((((struct ether_header *)(evh))->ether_type == HTON16(ETHER_TYPE_IP)) || \ |
| (((struct ether_header *)(evh))->ether_type == HTON16(ETHER_TYPE_IPV6))) && \ |
| dhd_l2_filter_chainable((dhd), (evh), (ifidx))) |
| |
| static INLINE void BCMFASTPATH dhd_rxchain_reset(rxchain_info_t *rxchain); |
| static void BCMFASTPATH dhd_rxchain_frame(dhd_pub_t *dhd, void *pkt, uint ifidx); |
| static void BCMFASTPATH dhd_rxchain_commit(dhd_pub_t *dhd); |
| |
| #define DHD_PKT_CTF_MAX_CHAIN_LEN 64 |
| |
| #endif /* DHD_RX_CHAINING */ |
| |
| static void dhd_prot_h2d_sync_init(dhd_pub_t *dhd); |
| |
| #if defined(PCIE_D2H_SYNC) /* avoids problems related to host CPU cache */ |
| |
| /** |
| * D2H DMA to completion callback handlers. Based on the mode advertised by the |
| * dongle through the PCIE shared region, the appropriate callback will be |
| * registered in the proto layer to be invoked prior to precessing any message |
| * from a D2H DMA ring. If the dongle uses a read barrier or another mode that |
| * does not require host participation, then a noop callback handler will be |
| * bound that simply returns the msg_type. |
| */ |
| static void dhd_prot_d2h_sync_livelock(dhd_pub_t *dhd, msgbuf_ring_t *ring, |
| uint32 tries, uchar *msg, int msglen); |
| static uint8 dhd_prot_d2h_sync_seqnum(dhd_pub_t *dhd, msgbuf_ring_t *ring, |
| volatile cmn_msg_hdr_t *msg, int msglen); |
| static uint8 dhd_prot_d2h_sync_xorcsum(dhd_pub_t *dhd, msgbuf_ring_t *ring, |
| volatile cmn_msg_hdr_t *msg, int msglen); |
| static uint8 dhd_prot_d2h_sync_none(dhd_pub_t *dhd, msgbuf_ring_t *ring, |
| volatile cmn_msg_hdr_t *msg, int msglen); |
| static void dhd_prot_d2h_sync_init(dhd_pub_t *dhd); |
| |
| void dhd_prot_collect_memdump(dhd_pub_t *dhd) |
| { |
| DHD_ERROR(("%s(): Collecting mem dump now \r\n", __FUNCTION__)); |
| #ifdef DHD_FW_COREDUMP |
| if (dhd->memdump_enabled) { |
| /* collect core dump */ |
| dhd->memdump_type = DUMP_TYPE_BY_LIVELOCK; |
| dhd_bus_mem_dump(dhd); |
| } |
| #endif /* DHD_FW_COREDUMP */ |
| #ifdef SUPPORT_LINKDOWN_RECOVERY |
| #ifdef CONFIG_ARCH_MSM |
| dhd->bus->no_cfg_restore = 1; |
| #endif /* CONFIG_ARCH_MSM */ |
| dhd->hang_reason = HANG_REASON_MSGBUF_LIVELOCK; |
| dhd_os_send_hang_message(dhd); |
| #endif /* SUPPORT_LINKDOWN_RECOVERY */ |
| } |
| |
| /** |
| * dhd_prot_d2h_sync_livelock - when the host determines that a DMA transfer has |
| * not completed, a livelock condition occurs. Host will avert this livelock by |
| * dropping this message and moving to the next. This dropped message can lead |
| * to a packet leak, or even something disastrous in the case the dropped |
| * message happens to be a control response. |
| * Here we will log this condition. One may choose to reboot the dongle. |
| * |
| */ |
| static void |
| dhd_prot_d2h_sync_livelock(dhd_pub_t *dhd, msgbuf_ring_t *ring, uint32 tries, |
| uchar *msg, int msglen) |
| { |
| uint32 seqnum = ring->seqnum; |
| |
| DHD_ERROR(("LIVELOCK DHD<%p> name<%s> seqnum<%u:%u> tries<%u> max<%lu> tot<%lu>" |
| "dma_buf va<%p> msg<%p> curr_rd<%d>\n", |
| dhd, ring->name, seqnum, seqnum% D2H_EPOCH_MODULO, tries, |
| dhd->prot->d2h_sync_wait_max, dhd->prot->d2h_sync_wait_tot, |
| ring->dma_buf.va, msg, ring->curr_rd)); |
| prhex("D2H MsgBuf Failure", (uchar *)msg, msglen); |
| dhd_dump_to_kernelog(dhd); |
| |
| #ifdef DHD_FW_COREDUMP |
| if (dhd->memdump_enabled) { |
| /* collect core dump */ |
| dhd->memdump_type = DUMP_TYPE_BY_LIVELOCK; |
| dhd_bus_mem_dump(dhd); |
| } |
| #endif /* DHD_FW_COREDUMP */ |
| #ifdef SUPPORT_LINKDOWN_RECOVERY |
| #ifdef CONFIG_ARCH_MSM |
| dhd->bus->no_cfg_restore = 1; |
| #endif /* CONFIG_ARCH_MSM */ |
| dhd->hang_reason = HANG_REASON_MSGBUF_LIVELOCK; |
| dhd_os_send_hang_message(dhd); |
| #endif /* SUPPORT_LINKDOWN_RECOVERY */ |
| } |
| |
| /** |
| * dhd_prot_d2h_sync_seqnum - Sync on a D2H DMA completion using the SEQNUM |
| * mode. Sequence number is always in the last word of a message. |
| */ |
| static uint8 BCMFASTPATH |
| dhd_prot_d2h_sync_seqnum(dhd_pub_t *dhd, msgbuf_ring_t *ring, |
| volatile cmn_msg_hdr_t *msg, int msglen) |
| { |
| uint32 tries; |
| uint32 ring_seqnum = ring->seqnum % D2H_EPOCH_MODULO; |
| int num_words = msglen / sizeof(uint32); /* num of 32bit words */ |
| volatile uint32 *marker = (uint32 *)msg + (num_words - 1); /* last word */ |
| dhd_prot_t *prot = dhd->prot; |
| uint32 step = 0; |
| uint32 delay = PCIE_D2H_SYNC_DELAY; |
| uint32 total_tries = 0; |
| |
| ASSERT(msglen == ring->item_len); |
| |
| BCM_REFERENCE(delay); |
| /* |
| * For retries we have to make some sort of stepper algorithm. |
| * We see that every time when the Dongle comes out of the D3 |
| * Cold state, the first D2H mem2mem DMA takes more time to |
| * complete, leading to livelock issues. |
| * |
| * Case 1 - Apart from Host CPU some other bus master is |
| * accessing the DDR port, probably page close to the ring |
| * so, PCIE does not get a change to update the memory. |
| * Solution - Increase the number of tries. |
| * |
| * Case 2 - The 50usec delay given by the Host CPU is not |
| * sufficient for the PCIe RC to start its work. |
| * In this case the breathing time of 50usec given by |
| * the Host CPU is not sufficient. |
| * Solution: Increase the delay in a stepper fashion. |
| * This is done to ensure that there are no |
| * unwanted extra delay introdcued in normal conditions. |
| */ |
| for (step = 1; step <= PCIE_D2H_SYNC_NUM_OF_STEPS; step++) { |
| for (tries = 1; tries <= PCIE_D2H_SYNC_WAIT_TRIES; tries++) { |
| uint32 msg_seqnum = *marker; |
| if (ltoh32(msg_seqnum) == ring_seqnum) { /* dma upto last word done */ |
| ring->seqnum++; /* next expected sequence number */ |
| goto dma_completed; |
| } |
| |
| total_tries = ((step-1) * PCIE_D2H_SYNC_WAIT_TRIES) + tries; |
| |
| if (total_tries > prot->d2h_sync_wait_max) |
| prot->d2h_sync_wait_max = total_tries; |
| |
| OSL_CACHE_INV(msg, msglen); /* invalidate and try again */ |
| OSL_CPU_RELAX(); /* CPU relax for msg_seqnum value to update */ |
| #if defined(CONFIG_ARCH_MSM8996) || defined(CONFIG_SOC_EXYNOS8890) |
| /* For ARM there is no pause in cpu_relax, so add extra delay */ |
| OSL_DELAY(delay * step); |
| #endif /* defined(CONFIG_ARCH_MSM8996) || defined(CONFIG_SOC_EXYNOS8890) */ |
| } /* for PCIE_D2H_SYNC_WAIT_TRIES */ |
| } /* for number of steps */ |
| |
| dhd_prot_d2h_sync_livelock(dhd, ring, total_tries, (uchar *)msg, msglen); |
| |
| ring->seqnum++; /* skip this message ... leak of a pktid */ |
| return MSG_TYPE_INVALID; /* invalid msg_type 0 -> noop callback */ |
| |
| dma_completed: |
| |
| prot->d2h_sync_wait_tot += total_tries; |
| return msg->msg_type; |
| } |
| |
| /** |
| * dhd_prot_d2h_sync_xorcsum - Sync on a D2H DMA completion using the XORCSUM |
| * mode. The xorcsum is placed in the last word of a message. Dongle will also |
| * place a seqnum in the epoch field of the cmn_msg_hdr. |
| */ |
| static uint8 BCMFASTPATH |
| dhd_prot_d2h_sync_xorcsum(dhd_pub_t *dhd, msgbuf_ring_t *ring, |
| volatile cmn_msg_hdr_t *msg, int msglen) |
| { |
| uint32 tries; |
| uint32 prot_checksum = 0; /* computed checksum */ |
| int num_words = msglen / sizeof(uint32); /* num of 32bit words */ |
| uint8 ring_seqnum = ring->seqnum % D2H_EPOCH_MODULO; |
| dhd_prot_t *prot = dhd->prot; |
| uint32 step = 0; |
| uint32 delay = PCIE_D2H_SYNC_DELAY; |
| uint32 total_tries = 0; |
| |
| ASSERT(msglen == ring->item_len); |
| |
| BCM_REFERENCE(delay); |
| |
| /* |
| * For retries we have to make some sort of stepper algorithm. |
| * We see that every time when the Dongle comes out of the D3 |
| * Cold state, the first D2H mem2mem DMA takes more time to |
| * complete, leading to livelock issues. |
| * |
| * Case 1 - Apart from Host CPU some other bus master is |
| * accessing the DDR port, probably page close to the ring |
| * so, PCIE does not get a change to update the memory. |
| * Solution - Increase the number of tries. |
| * |
| * Case 2 - The 50usec delay given by the Host CPU is not |
| * sufficient for the PCIe RC to start its work. |
| * In this case the breathing time of 50usec given by |
| * the Host CPU is not sufficient. |
| * Solution: Increase the delay in a stepper fashion. |
| * This is done to ensure that there are no |
| * unwanted extra delay introdcued in normal conditions. |
| */ |
| for (step = 1; step <= PCIE_D2H_SYNC_NUM_OF_STEPS; step++) { |
| for (tries = 1; tries <= PCIE_D2H_SYNC_WAIT_TRIES; tries++) { |
| prot_checksum = bcm_compute_xor32((volatile uint32 *)msg, num_words); |
| if (prot_checksum == 0U) { /* checksum is OK */ |
| if (msg->epoch == ring_seqnum) { |
| ring->seqnum++; /* next expected sequence number */ |
| goto dma_completed; |
| } |
| } |
| |
| total_tries = ((step-1) * PCIE_D2H_SYNC_WAIT_TRIES) + tries; |
| |
| if (total_tries > prot->d2h_sync_wait_max) |
| prot->d2h_sync_wait_max = total_tries; |
| |
| OSL_CACHE_INV(msg, msglen); /* invalidate and try again */ |
| OSL_CPU_RELAX(); /* CPU relax for msg_seqnum value to update */ |
| #if defined(CONFIG_ARCH_MSM8996) || defined(CONFIG_SOC_EXYNOS8890) |
| /* For ARM there is no pause in cpu_relax, so add extra delay */ |
| OSL_DELAY(delay * step); |
| #endif /* defined(CONFIG_ARCH_MSM8996) || defined(CONFIG_SOC_EXYNOS8890) */ |
| |
| } /* for PCIE_D2H_SYNC_WAIT_TRIES */ |
| } /* for number of steps */ |
| |
| dhd_prot_d2h_sync_livelock(dhd, ring, total_tries, (uchar *)msg, msglen); |
| |
| ring->seqnum++; /* skip this message ... leak of a pktid */ |
| return MSG_TYPE_INVALID; /* invalid msg_type 0 -> noop callback */ |
| |
| dma_completed: |
| |
| prot->d2h_sync_wait_tot += total_tries; |
| return msg->msg_type; |
| } |
| |
| /** |
| * dhd_prot_d2h_sync_none - Dongle ensure that the DMA will complete and host |
| * need to try to sync. This noop sync handler will be bound when the dongle |
| * advertises that neither the SEQNUM nor XORCSUM mode of DMA sync is required. |
| */ |
| static uint8 BCMFASTPATH |
| dhd_prot_d2h_sync_none(dhd_pub_t *dhd, msgbuf_ring_t *ring, |
| volatile cmn_msg_hdr_t *msg, int msglen) |
| { |
| return msg->msg_type; |
| } |
| |
| /** |
| * dhd_prot_d2h_sync_init - Setup the host side DMA sync mode based on what |
| * dongle advertizes. |
| */ |
| static void |
| dhd_prot_d2h_sync_init(dhd_pub_t *dhd) |
| { |
| dhd_prot_t *prot = dhd->prot; |
| prot->d2h_sync_wait_max = 0UL; |
| prot->d2h_sync_wait_tot = 0UL; |
| |
| prot->d2hring_ctrl_cpln.seqnum = D2H_EPOCH_INIT_VAL; |
| prot->d2hring_tx_cpln.seqnum = D2H_EPOCH_INIT_VAL; |
| prot->d2hring_rx_cpln.seqnum = D2H_EPOCH_INIT_VAL; |
| |
| if (dhd->d2h_sync_mode & PCIE_SHARED_D2H_SYNC_SEQNUM) { |
| prot->d2h_sync_cb = dhd_prot_d2h_sync_seqnum; |
| } else if (dhd->d2h_sync_mode & PCIE_SHARED_D2H_SYNC_XORCSUM) { |
| prot->d2h_sync_cb = dhd_prot_d2h_sync_xorcsum; |
| } else { |
| prot->d2h_sync_cb = dhd_prot_d2h_sync_none; |
| } |
| } |
| |
| #endif /* PCIE_D2H_SYNC */ |
| |
| int INLINE |
| dhd_wakeup_ioctl_event(dhd_pub_t *dhd, dhd_ioctl_recieved_status_t reason) |
| { |
| /* To synchronize with the previous memory operations call wmb() */ |
| OSL_SMP_WMB(); |
| dhd->prot->ioctl_received = reason; |
| /* Call another wmb() to make sure before waking up the other event value gets updated */ |
| OSL_SMP_WMB(); |
| dhd_os_ioctl_resp_wake(dhd); |
| return 0; |
| } |
| |
| /** |
| * dhd_prot_h2d_sync_init - Per H2D common ring, setup the msgbuf ring seqnum |
| */ |
| static void |
| dhd_prot_h2d_sync_init(dhd_pub_t *dhd) |
| { |
| dhd_prot_t *prot = dhd->prot; |
| prot->h2dring_rxp_subn.seqnum = H2D_EPOCH_INIT_VAL; |
| prot->h2dring_ctrl_subn.seqnum = H2D_EPOCH_INIT_VAL; |
| } |
| |
| /* +----------------- End of PCIE DHD H2D DMA SYNC ------------------------+ */ |
| |
| |
| /* |
| * +---------------------------------------------------------------------------+ |
| * PCIE DMA-able buffer. Sets up a dhd_dma_buf_t object, which includes the |
| * virtual and physical address, the buffer lenght and the DMA handler. |
| * A secdma handler is also included in the dhd_dma_buf object. |
| * +---------------------------------------------------------------------------+ |
| */ |
| |
| static INLINE void |
| dhd_base_addr_htolpa(sh_addr_t *base_addr, dmaaddr_t pa) |
| { |
| base_addr->low_addr = htol32(PHYSADDRLO(pa)); |
| base_addr->high_addr = htol32(PHYSADDRHI(pa)); |
| } |
| |
| |
| /** |
| * dhd_dma_buf_audit - Any audits on a DHD DMA Buffer. |
| */ |
| static int |
| dhd_dma_buf_audit(dhd_pub_t *dhd, dhd_dma_buf_t *dma_buf) |
| { |
| uint32 base, end; /* dongle uses 32bit ptr arithmetic */ |
| |
| ASSERT(dma_buf); |
| base = PHYSADDRLO(dma_buf->pa); |
| ASSERT(base); |
| ASSERT(ISALIGNED(base, DMA_ALIGN_LEN)); |
| ASSERT(dma_buf->len != 0); |
| |
| /* test 32bit offset arithmetic over dma buffer for loss of carry-over */ |
| end = (base + dma_buf->len); /* end address */ |
| |
| if ((end & 0xFFFFFFFF) < (base & 0xFFFFFFFF)) { /* exclude carryover */ |
| DHD_ERROR(("%s: dma_buf %x len %d spans dongle 32bit ptr arithmetic\n", |
| __FUNCTION__, base, dma_buf->len)); |
| return BCME_ERROR; |
| } |
| |
| return BCME_OK; |
| } |
| |
| /** |
| * dhd_dma_buf_alloc - Allocate a cache coherent DMA-able buffer. |
| * returns BCME_OK=0 on success |
| * returns non-zero negative error value on failure. |
| */ |
| static int |
| dhd_dma_buf_alloc(dhd_pub_t *dhd, dhd_dma_buf_t *dma_buf, uint32 buf_len) |
| { |
| uint32 dma_pad = 0; |
| osl_t *osh = dhd->osh; |
| |
| ASSERT(dma_buf != NULL); |
| ASSERT(dma_buf->va == NULL); |
| ASSERT(dma_buf->len == 0); |
| |
| /* Pad the buffer length by one extra cacheline size. |
| * Required for D2H direction. |
| */ |
| dma_pad = (buf_len % DHD_DMA_PAD) ? DHD_DMA_PAD : 0; |
| dma_buf->va = DMA_ALLOC_CONSISTENT(osh, buf_len + dma_pad, |
| DMA_ALIGN_LEN, &dma_buf->_alloced, &dma_buf->pa, &dma_buf->dmah); |
| |
| if (dma_buf->va == NULL) { |
| DHD_ERROR(("%s: buf_len %d, no memory available\n", |
| __FUNCTION__, buf_len)); |
| return BCME_NOMEM; |
| } |
| |
| dma_buf->len = buf_len; /* not including padded len */ |
| |
| if (dhd_dma_buf_audit(dhd, dma_buf) != BCME_OK) { /* audit dma buf */ |
| dhd_dma_buf_free(dhd, dma_buf); |
| return BCME_ERROR; |
| } |
| |
| dhd_dma_buf_reset(dhd, dma_buf); /* zero out and cache flush */ |
| |
| return BCME_OK; |
| } |
| |
| /** |
| * dhd_dma_buf_reset - Reset a cache coherent DMA-able buffer. |
| */ |
| static void |
| dhd_dma_buf_reset(dhd_pub_t *dhd, dhd_dma_buf_t *dma_buf) |
| { |
| if ((dma_buf == NULL) || (dma_buf->va == NULL)) { |
| return; |
| } |
| |
| (void)dhd_dma_buf_audit(dhd, dma_buf); |
| |
| /* Zero out the entire buffer and cache flush */ |
| memset((void*)dma_buf->va, 0, dma_buf->len); |
| OSL_CACHE_FLUSH((void *)dma_buf->va, dma_buf->len); |
| } |
| |
| /** |
| * dhd_dma_buf_free - Free a DMA-able buffer that was previously allocated using |
| * dhd_dma_buf_alloc(). |
| */ |
| static void |
| dhd_dma_buf_free(dhd_pub_t *dhd, dhd_dma_buf_t *dma_buf) |
| { |
| osl_t *osh = dhd->osh; |
| |
| ASSERT(dma_buf); |
| |
| if (dma_buf->va == NULL) { |
| return; /* Allow for free invocation, when alloc failed */ |
| } |
| |
| /* DEBUG: dhd_dma_buf_reset(dhd, dma_buf) */ |
| (void)dhd_dma_buf_audit(dhd, dma_buf); |
| |
| /* dma buffer may have been padded at allocation */ |
| DMA_FREE_CONSISTENT(osh, dma_buf->va, dma_buf->_alloced, |
| dma_buf->pa, dma_buf->dmah); |
| |
| memset(dma_buf, 0, sizeof(dhd_dma_buf_t)); |
| } |
| |
| /** |
| * dhd_dma_buf_init - Initialize a dhd_dma_buf with speicifed values. |
| * Do not use dhd_dma_buf_init to zero out a dhd_dma_buf_t object. Use memset 0. |
| */ |
| void |
| dhd_dma_buf_init(dhd_pub_t *dhd, void *dhd_dma_buf, |
| void *va, uint32 len, dmaaddr_t pa, void *dmah, void *secdma) |
| { |
| dhd_dma_buf_t *dma_buf; |
| ASSERT(dhd_dma_buf); |
| dma_buf = (dhd_dma_buf_t *)dhd_dma_buf; |
| dma_buf->va = va; |
| dma_buf->len = len; |
| dma_buf->pa = pa; |
| dma_buf->dmah = dmah; |
| dma_buf->secdma = secdma; |
| |
| /* Audit user defined configuration */ |
| (void)dhd_dma_buf_audit(dhd, dma_buf); |
| } |
| |
| /* +------------------ End of PCIE DHD DMA BUF ADT ------------------------+ */ |
| |
| /* |
| * +---------------------------------------------------------------------------+ |
| * PktId Map: Provides a native packet pointer to unique 32bit PktId mapping. |
| * Main purpose is to save memory on the dongle, has other purposes as well. |
| * The packet id map, also includes storage for some packet parameters that |
| * may be saved. A native packet pointer along with the parameters may be saved |
| * and a unique 32bit pkt id will be returned. Later, the saved packet pointer |
| * and the metadata may be retrieved using the previously allocated packet id. |
| * +---------------------------------------------------------------------------+ |
| */ |
| #define DHD_PCIE_PKTID |
| #define MAX_PKTID_ITEMS (3072) /* Maximum number of pktids supported */ |
| |
| /* On Router, the pktptr serves as a pktid. */ |
| |
| |
| #if defined(PROP_TXSTATUS) && !defined(DHD_PCIE_PKTID) |
| #error "PKTIDMAP must be supported with PROP_TXSTATUS/WLFC" |
| #endif |
| |
| /* Enum for marking the buffer color based on usage */ |
| typedef enum dhd_pkttype { |
| PKTTYPE_DATA_TX = 0, |
| PKTTYPE_DATA_RX, |
| PKTTYPE_IOCTL_RX, |
| PKTTYPE_EVENT_RX, |
| /* dhd_prot_pkt_free no check, if pktid reserved and no space avail case */ |
| PKTTYPE_NO_CHECK |
| } dhd_pkttype_t; |
| |
| #define DHD_PKTID_INVALID (0U) |
| #define DHD_IOCTL_REQ_PKTID (0xFFFE) |
| #define DHD_FAKE_PKTID (0xFACE) |
| |
| #define DHD_PKTID_FREE_LOCKER (FALSE) |
| #define DHD_PKTID_RSV_LOCKER (TRUE) |
| |
| typedef void * dhd_pktid_map_handle_t; /* opaque handle to a pktid map */ |
| |
| /* Construct a packet id mapping table, returning an opaque map handle */ |
| static dhd_pktid_map_handle_t *dhd_pktid_map_init(dhd_pub_t *dhd, uint32 num_items, uint32 index); |
| |
| /* Destroy a packet id mapping table, freeing all packets active in the table */ |
| static void dhd_pktid_map_fini(dhd_pub_t *dhd, dhd_pktid_map_handle_t *map); |
| |
| #define PKTID_MAP_HANDLE (0) |
| #define PKTID_MAP_HANDLE_IOCTL (1) |
| |
| #define DHD_NATIVE_TO_PKTID_INIT(dhd, items, index) dhd_pktid_map_init((dhd), (items), (index)) |
| #define DHD_NATIVE_TO_PKTID_FINI(dhd, map) dhd_pktid_map_fini((dhd), (map)) |
| |
| #if defined(DHD_PCIE_PKTID) |
| |
| |
| /* Determine number of pktids that are available */ |
| static INLINE uint32 dhd_pktid_map_avail_cnt(dhd_pktid_map_handle_t *handle); |
| |
| /* Allocate a unique pktid against which a pkt and some metadata is saved */ |
| static INLINE uint32 dhd_pktid_map_reserve(dhd_pub_t *dhd, dhd_pktid_map_handle_t *handle, |
| void *pkt); |
| static INLINE void dhd_pktid_map_save(dhd_pub_t *dhd, dhd_pktid_map_handle_t *handle, |
| void *pkt, uint32 nkey, dmaaddr_t pa, uint32 len, uint8 dma, |
| void *dmah, void *secdma, dhd_pkttype_t pkttype); |
| static uint32 dhd_pktid_map_alloc(dhd_pub_t *dhd, dhd_pktid_map_handle_t *map, |
| void *pkt, dmaaddr_t pa, uint32 len, uint8 dma, |
| void *dmah, void *secdma, dhd_pkttype_t pkttype); |
| |
| /* Return an allocated pktid, retrieving previously saved pkt and metadata */ |
| static void *dhd_pktid_map_free(dhd_pub_t *dhd, dhd_pktid_map_handle_t *map, |
| uint32 id, dmaaddr_t *pa, uint32 *len, void **dmah, |
| void **secdma, dhd_pkttype_t pkttype, bool rsv_locker); |
| |
| /* |
| * DHD_PKTID_AUDIT_ENABLED: Audit of PktIds in DHD for duplicate alloc and frees |
| * |
| * DHD_PKTID_AUDIT_MAP: Audit the LIFO or FIFO PktIdMap allocator |
| * DHD_PKTID_AUDIT_RING: Audit the pktid during producer/consumer ring operation |
| * |
| * CAUTION: When DHD_PKTID_AUDIT_ENABLED is defined, |
| * either DHD_PKTID_AUDIT_MAP or DHD_PKTID_AUDIT_RING may be selected. |
| */ |
| #if defined(DHD_PKTID_AUDIT_ENABLED) |
| #define USE_DHD_PKTID_AUDIT_LOCK 1 |
| /* Audit the pktidmap allocator */ |
| /* #define DHD_PKTID_AUDIT_MAP */ |
| |
| /* Audit the pktid during production/consumption of workitems */ |
| #define DHD_PKTID_AUDIT_RING |
| |
| #if defined(DHD_PKTID_AUDIT_MAP) && defined(DHD_PKTID_AUDIT_RING) |
| #error "May only enabled audit of MAP or RING, at a time." |
| #endif /* DHD_PKTID_AUDIT_MAP && DHD_PKTID_AUDIT_RING */ |
| |
| #define DHD_DUPLICATE_ALLOC 1 |
| #define DHD_DUPLICATE_FREE 2 |
| #define DHD_TEST_IS_ALLOC 3 |
| #define DHD_TEST_IS_FREE 4 |
| |
| #ifdef USE_DHD_PKTID_AUDIT_LOCK |
| #define DHD_PKTID_AUDIT_LOCK_INIT(osh) dhd_os_spin_lock_init(osh) |
| #define DHD_PKTID_AUDIT_LOCK_DEINIT(osh, lock) dhd_os_spin_lock_deinit(osh, lock) |
| #define DHD_PKTID_AUDIT_LOCK(lock) dhd_os_spin_lock(lock) |
| #define DHD_PKTID_AUDIT_UNLOCK(lock, flags) dhd_os_spin_unlock(lock, flags) |
| #else |
| #define DHD_PKTID_AUDIT_LOCK_INIT(osh) (void *)(1) |
| #define DHD_PKTID_AUDIT_LOCK_DEINIT(osh, lock) do { /* noop */ } while (0) |
| #define DHD_PKTID_AUDIT_LOCK(lock) 0 |
| #define DHD_PKTID_AUDIT_UNLOCK(lock, flags) do { /* noop */ } while (0) |
| #endif /* !USE_DHD_PKTID_AUDIT_LOCK */ |
| |
| #endif /* DHD_PKTID_AUDIT_ENABLED */ |
| |
| /* #define USE_DHD_PKTID_LOCK 1 */ |
| |
| #ifdef USE_DHD_PKTID_LOCK |
| #define DHD_PKTID_LOCK_INIT(osh) dhd_os_spin_lock_init(osh) |
| #define DHD_PKTID_LOCK_DEINIT(osh, lock) dhd_os_spin_lock_deinit(osh, lock) |
| #define DHD_PKTID_LOCK(lock) dhd_os_spin_lock(lock) |
| #define DHD_PKTID_UNLOCK(lock, flags) dhd_os_spin_unlock(lock, flags) |
| #else |
| #define DHD_PKTID_LOCK_INIT(osh) (void *)(1) |
| #define DHD_PKTID_LOCK_DEINIT(osh, lock) \ |
| do { \ |
| BCM_REFERENCE(osh); \ |
| BCM_REFERENCE(lock); \ |
| } while (0) |
| #define DHD_PKTID_LOCK(lock) 0 |
| #define DHD_PKTID_UNLOCK(lock, flags) \ |
| do { \ |
| BCM_REFERENCE(lock); \ |
| BCM_REFERENCE(flags); \ |
| } while (0) |
| #endif /* !USE_DHD_PKTID_LOCK */ |
| |
| /* Packet metadata saved in packet id mapper */ |
| |
| /* The Locker can be 3 states |
| * LOCKER_IS_FREE - Locker is free and can be allocated |
| * LOCKER_IS_BUSY - Locker is assigned and is being used, values in the |
| * locker (buffer address, len, phy addr etc) are populated |
| * with valid values |
| * LOCKER_IS_RSVD - The locker is reserved for future use, but the values |
| * in the locker are not valid. Especially pkt should be |
| * NULL in this state. When the user wants to re-use the |
| * locker dhd_pktid_map_free can be called with a flag |
| * to reserve the pktid for future use, which will clear |
| * the contents of the locker. When the user calls |
| * dhd_pktid_map_save the locker would move to LOCKER_IS_BUSY |
| */ |
| typedef enum dhd_locker_state { |
| LOCKER_IS_FREE, |
| LOCKER_IS_BUSY, |
| LOCKER_IS_RSVD |
| } dhd_locker_state_t; |
| |
| typedef struct dhd_pktid_item { |
| dhd_locker_state_t state; /* tag a locker to be free, busy or reserved */ |
| uint8 dir; /* dma map direction (Tx=flush or Rx=invalidate) */ |
| dhd_pkttype_t pkttype; /* pktlists are maintained based on pkttype */ |
| uint16 len; /* length of mapped packet's buffer */ |
| void *pkt; /* opaque native pointer to a packet */ |
| dmaaddr_t pa; /* physical address of mapped packet's buffer */ |
| void *dmah; /* handle to OS specific DMA map */ |
| void *secdma; |
| } dhd_pktid_item_t; |
| |
| typedef struct dhd_pktid_map { |
| uint32 items; /* total items in map */ |
| uint32 avail; /* total available items */ |
| int failures; /* lockers unavailable count */ |
| /* Spinlock to protect dhd_pktid_map in process/tasklet context */ |
| void *pktid_lock; /* Used when USE_DHD_PKTID_LOCK is defined */ |
| |
| #if defined(DHD_PKTID_AUDIT_ENABLED) |
| void *pktid_audit_lock; |
| struct bcm_mwbmap *pktid_audit; /* multi word bitmap based audit */ |
| #endif /* DHD_PKTID_AUDIT_ENABLED */ |
| |
| uint32 keys[MAX_PKTID_ITEMS + 1]; /* stack of unique pkt ids */ |
| dhd_pktid_item_t lockers[0]; /* metadata storage */ |
| } dhd_pktid_map_t; |
| |
| /* |
| * PktId (Locker) #0 is never allocated and is considered invalid. |
| * |
| * On request for a pktid, a value DHD_PKTID_INVALID must be treated as a |
| * depleted pktid pool and must not be used by the caller. |
| * |
| * Likewise, a caller must never free a pktid of value DHD_PKTID_INVALID. |
| */ |
| |
| #define DHD_PKTID_ITEM_SZ (sizeof(dhd_pktid_item_t)) |
| #define DHD_PKIDMAP_ITEMS(items) (items) |
| #define DHD_PKTID_MAP_SZ(items) (sizeof(dhd_pktid_map_t) + \ |
| (DHD_PKTID_ITEM_SZ * ((items) + 1))) |
| |
| #define DHD_NATIVE_TO_PKTID_FINI_IOCTL(dhd, map) dhd_pktid_map_fini_ioctl((dhd), (map)) |
| |
| /* Convert a packet to a pktid, and save pkt pointer in busy locker */ |
| #define DHD_NATIVE_TO_PKTID_RSV(dhd, map, pkt) dhd_pktid_map_reserve((dhd), (map), (pkt)) |
| |
| /* Reuse a previously reserved locker to save packet params */ |
| #define DHD_NATIVE_TO_PKTID_SAVE(dhd, map, pkt, nkey, pa, len, dir, dmah, secdma, pkttype) \ |
| dhd_pktid_map_save((dhd), (map), (void *)(pkt), (nkey), (pa), (uint32)(len), \ |
| (uint8)(dir), (void *)(dmah), (void *)(secdma), \ |
| (dhd_pkttype_t)(pkttype)) |
| |
| /* Convert a packet to a pktid, and save packet params in locker */ |
| #define DHD_NATIVE_TO_PKTID(dhd, map, pkt, pa, len, dir, dmah, secdma, pkttype) \ |
| dhd_pktid_map_alloc((dhd), (map), (void *)(pkt), (pa), (uint32)(len), \ |
| (uint8)(dir), (void *)(dmah), (void *)(secdma), \ |
| (dhd_pkttype_t)(pkttype)) |
| |
| /* Convert pktid to a packet, and free the locker */ |
| #define DHD_PKTID_TO_NATIVE(dhd, map, pktid, pa, len, dmah, secdma, pkttype) \ |
| dhd_pktid_map_free((dhd), (map), (uint32)(pktid), \ |
| (dmaaddr_t *)&(pa), (uint32 *)&(len), (void **)&(dmah), \ |
| (void **) &secdma, (dhd_pkttype_t)(pkttype), DHD_PKTID_FREE_LOCKER) |
| |
| /* Convert the pktid to a packet, empty locker, but keep it reserved */ |
| #define DHD_PKTID_TO_NATIVE_RSV(dhd, map, pktid, pa, len, dmah, secdma, pkttype) \ |
| dhd_pktid_map_free((dhd), (map), (uint32)(pktid), \ |
| (dmaaddr_t *)&(pa), (uint32 *)&(len), (void **)&(dmah), \ |
| (void **) &secdma, (dhd_pkttype_t)(pkttype), DHD_PKTID_RSV_LOCKER) |
| |
| #define DHD_PKTID_AVAIL(map) dhd_pktid_map_avail_cnt(map) |
| |
| #if defined(DHD_PKTID_AUDIT_ENABLED) |
| |
| static int dhd_pktid_audit(dhd_pub_t *dhd, dhd_pktid_map_t *pktid_map, uint32 pktid, |
| const int test_for, const char *errmsg); |
| |
| /** |
| * dhd_pktid_audit - Use the mwbmap to audit validity of a pktid. |
| */ |
| static int |
| dhd_pktid_audit(dhd_pub_t *dhd, dhd_pktid_map_t *pktid_map, uint32 pktid, |
| const int test_for, const char *errmsg) |
| { |
| #define DHD_PKT_AUDIT_STR "ERROR: %16s Host PktId Audit: " |
| |
| const uint32 max_pktid_items = (MAX_PKTID_ITEMS); |
| struct bcm_mwbmap *handle; |
| uint32 flags; |
| bool ignore_audit; |
| |
| if (pktid_map == (dhd_pktid_map_t *)NULL) { |
| DHD_ERROR((DHD_PKT_AUDIT_STR "Pkt id map NULL\n", errmsg)); |
| return BCME_OK; |
| } |
| |
| flags = DHD_PKTID_AUDIT_LOCK(pktid_map->pktid_audit_lock); |
| |
| handle = pktid_map->pktid_audit; |
| if (handle == (struct bcm_mwbmap *)NULL) { |
| DHD_ERROR((DHD_PKT_AUDIT_STR "Handle NULL\n", errmsg)); |
| DHD_PKTID_AUDIT_UNLOCK(pktid_map->pktid_audit_lock, flags); |
| return BCME_OK; |
| } |
| |
| /* Exclude special pktids from audit */ |
| ignore_audit = (pktid == DHD_IOCTL_REQ_PKTID) | (pktid == DHD_FAKE_PKTID); |
| if (ignore_audit) { |
| DHD_PKTID_AUDIT_UNLOCK(pktid_map->pktid_audit_lock, flags); |
| return BCME_OK; |
| } |
| |
| if ((pktid == DHD_PKTID_INVALID) || (pktid > max_pktid_items)) { |
| DHD_ERROR((DHD_PKT_AUDIT_STR "PktId<%d> invalid\n", errmsg, pktid)); |
| /* lock is released in "error" */ |
| goto error; |
| } |
| |
| /* Perform audit */ |
| switch (test_for) { |
| case DHD_DUPLICATE_ALLOC: |
| if (!bcm_mwbmap_isfree(handle, pktid)) { |
| DHD_ERROR((DHD_PKT_AUDIT_STR "PktId<%d> alloc duplicate\n", |
| errmsg, pktid)); |
| goto error; |
| } |
| bcm_mwbmap_force(handle, pktid); |
| break; |
| |
| case DHD_DUPLICATE_FREE: |
| if (bcm_mwbmap_isfree(handle, pktid)) { |
| DHD_ERROR((DHD_PKT_AUDIT_STR "PktId<%d> free duplicate\n", |
| errmsg, pktid)); |
| goto error; |
| } |
| bcm_mwbmap_free(handle, pktid); |
| break; |
| |
| case DHD_TEST_IS_ALLOC: |
| if (bcm_mwbmap_isfree(handle, pktid)) { |
| DHD_ERROR((DHD_PKT_AUDIT_STR "PktId<%d> is not allocated\n", |
| errmsg, pktid)); |
| goto error; |
| } |
| break; |
| |
| case DHD_TEST_IS_FREE: |
| if (!bcm_mwbmap_isfree(handle, pktid)) { |
| DHD_ERROR((DHD_PKT_AUDIT_STR "PktId<%d> is not free", |
| errmsg, pktid)); |
| goto error; |
| } |
| break; |
| |
| default: |
| goto error; |
| } |
| |
| DHD_PKTID_AUDIT_UNLOCK(pktid_map->pktid_audit_lock, flags); |
| return BCME_OK; |
| |
| error: |
| |
| DHD_PKTID_AUDIT_UNLOCK(pktid_map->pktid_audit_lock, flags); |
| /* May insert any trap mechanism here ! */ |
| dhd_pktid_audit_fail_cb(dhd); |
| |
| return BCME_ERROR; |
| } |
| |
| #define DHD_PKTID_AUDIT(dhdp, map, pktid, test_for) \ |
| dhd_pktid_audit((dhdp), (dhd_pktid_map_t *)(map), (pktid), (test_for), __FUNCTION__) |
| |
| #endif /* DHD_PKTID_AUDIT_ENABLED */ |
| |
| /* +------------------ End of PCIE DHD PKTID AUDIT ------------------------+ */ |
| |
| |
| /** |
| * +---------------------------------------------------------------------------+ |
| * Packet to Packet Id mapper using a <numbered_key, locker> paradigm. |
| * |
| * dhd_pktid_map manages a set of unique Packet Ids range[1..MAX_PKTID_ITEMS]. |
| * |
| * dhd_pktid_map_alloc() may be used to save some packet metadata, and a unique |
| * packet id is returned. This unique packet id may be used to retrieve the |
| * previously saved packet metadata, using dhd_pktid_map_free(). On invocation |
| * of dhd_pktid_map_free(), the unique packet id is essentially freed. A |
| * subsequent call to dhd_pktid_map_alloc() may reuse this packet id. |
| * |
| * Implementation Note: |
| * Convert this into a <key,locker> abstraction and place into bcmutils ! |
| * Locker abstraction should treat contents as opaque storage, and a |
| * callback should be registered to handle busy lockers on destructor. |
| * |
| * +---------------------------------------------------------------------------+ |
| */ |
| |
| /** Allocate and initialize a mapper of num_items <numbered_key, locker> */ |
| |
| static dhd_pktid_map_handle_t * |
| dhd_pktid_map_init(dhd_pub_t *dhd, uint32 num_items, uint32 index) |
| { |
| void *osh; |
| uint32 nkey; |
| dhd_pktid_map_t *map; |
| uint32 dhd_pktid_map_sz; |
| uint32 map_items; |
| #ifdef DHD_USE_STATIC_PKTIDMAP |
| uint32 section; |
| #endif /* DHD_USE_STATIC_PKTIDMAP */ |
| osh = dhd->osh; |
| |
| ASSERT((num_items >= 1) && (num_items <= MAX_PKTID_ITEMS)); |
| dhd_pktid_map_sz = DHD_PKTID_MAP_SZ(num_items); |
| |
| #ifdef DHD_USE_STATIC_PKTIDMAP |
| if (index == PKTID_MAP_HANDLE) { |
| section = DHD_PREALLOC_PKTID_MAP; |
| } else { |
| section = DHD_PREALLOC_PKTID_MAP_IOCTL; |
| } |
| |
| map = (dhd_pktid_map_t *)DHD_OS_PREALLOC(dhd, section, dhd_pktid_map_sz); |
| #else |
| map = (dhd_pktid_map_t *)MALLOC(osh, dhd_pktid_map_sz); |
| #endif /* DHD_USE_STATIC_PKTIDMAP */ |
| |
| if (map == NULL) { |
| DHD_ERROR(("%s:%d: MALLOC failed for size %d\n", |
| __FUNCTION__, __LINE__, dhd_pktid_map_sz)); |
| goto error; |
| } |
| |
| bzero(map, dhd_pktid_map_sz); |
| |
| /* Initialize the lock that protects this structure */ |
| map->pktid_lock = DHD_PKTID_LOCK_INIT(osh); |
| if (map->pktid_lock == NULL) { |
| DHD_ERROR(("%s:%d: Lock init failed \r\n", __FUNCTION__, __LINE__)); |
| goto error; |
| } |
| |
| map->items = num_items; |
| map->avail = num_items; |
| |
| map_items = DHD_PKIDMAP_ITEMS(map->items); |
| |
| #if defined(DHD_PKTID_AUDIT_ENABLED) |
| /* Incarnate a hierarchical multiword bitmap for auditing pktid allocator */ |
| map->pktid_audit = bcm_mwbmap_init(osh, map_items + 1); |
| if (map->pktid_audit == (struct bcm_mwbmap *)NULL) { |
| DHD_ERROR(("%s:%d: pktid_audit init failed\r\n", __FUNCTION__, __LINE__)); |
| goto error; |
| } else { |
| DHD_ERROR(("%s:%d: pktid_audit init succeeded %d\n", |
| __FUNCTION__, __LINE__, map_items + 1)); |
| } |
| |
| map->pktid_audit_lock = DHD_PKTID_AUDIT_LOCK_INIT(osh); |
| |
| #endif /* DHD_PKTID_AUDIT_ENABLED */ |
| |
| for (nkey = 1; nkey <= map_items; nkey++) { /* locker #0 is reserved */ |
| map->keys[nkey] = nkey; /* populate with unique keys */ |
| map->lockers[nkey].state = LOCKER_IS_FREE; |
| map->lockers[nkey].pkt = NULL; /* bzero: redundant */ |
| map->lockers[nkey].len = 0; |
| } |
| |
| /* Reserve pktid #0, i.e. DHD_PKTID_INVALID to be busy */ |
| map->lockers[DHD_PKTID_INVALID].state = LOCKER_IS_BUSY; |
| map->lockers[DHD_PKTID_INVALID].pkt = NULL; /* bzero: redundant */ |
| map->lockers[DHD_PKTID_INVALID].len = 0; |
| |
| #if defined(DHD_PKTID_AUDIT_ENABLED) |
| /* do not use dhd_pktid_audit() here, use bcm_mwbmap_force directly */ |
| bcm_mwbmap_force(map->pktid_audit, DHD_PKTID_INVALID); |
| #endif /* DHD_PKTID_AUDIT_ENABLED */ |
| |
| return (dhd_pktid_map_handle_t *)map; /* opaque handle */ |
| |
| error: |
| |
| if (map) { |
| |
| #if defined(DHD_PKTID_AUDIT_ENABLED) |
| if (map->pktid_audit != (struct bcm_mwbmap *)NULL) { |
| bcm_mwbmap_fini(osh, map->pktid_audit); /* Destruct pktid_audit */ |
| map->pktid_audit = (struct bcm_mwbmap *)NULL; |
| if (map->pktid_audit_lock) |
| DHD_PKTID_AUDIT_LOCK_DEINIT(osh, map->pktid_audit_lock); |
| } |
| #endif /* DHD_PKTID_AUDIT_ENABLED */ |
| |
| if (map->pktid_lock) |
| DHD_PKTID_LOCK_DEINIT(osh, map->pktid_lock); |
| |
| MFREE(osh, map, dhd_pktid_map_sz); |
| } |
| |
| return (dhd_pktid_map_handle_t *)NULL; |
| } |
| |
| /** |
| * Retrieve all allocated keys and free all <numbered_key, locker>. |
| * Freeing implies: unmapping the buffers and freeing the native packet |
| * This could have been a callback registered with the pktid mapper. |
| */ |
| |
| static void |
| dhd_pktid_map_fini(dhd_pub_t *dhd, dhd_pktid_map_handle_t *handle) |
| { |
| void *osh; |
| uint32 nkey; |
| dhd_pktid_map_t *map; |
| uint32 dhd_pktid_map_sz; |
| dhd_pktid_item_t *locker; |
| uint32 map_items; |
| uint32 flags; |
| |
| if (handle == NULL) { |
| return; |
| } |
| |
| map = (dhd_pktid_map_t *)handle; |
| flags = DHD_PKTID_LOCK(map->pktid_lock); |
| osh = dhd->osh; |
| |
| dhd_pktid_map_sz = DHD_PKTID_MAP_SZ(map->items); |
| |
| nkey = 1; /* skip reserved KEY #0, and start from 1 */ |
| locker = &map->lockers[nkey]; |
| |
| map_items = DHD_PKIDMAP_ITEMS(map->items); |
| |
| for (; nkey <= map_items; nkey++, locker++) { |
| |
| if (locker->state == LOCKER_IS_BUSY) { /* numbered key still in use */ |
| |
| locker->state = LOCKER_IS_FREE; /* force open the locker */ |
| |
| #if defined(DHD_PKTID_AUDIT_ENABLED) |
| DHD_PKTID_AUDIT(dhd, map, nkey, DHD_DUPLICATE_FREE); /* duplicate frees */ |
| #endif /* DHD_PKTID_AUDIT_ENABLED */ |
| |
| { /* This could be a callback registered with dhd_pktid_map */ |
| DMA_UNMAP(osh, locker->pa, locker->len, |
| locker->dir, 0, DHD_DMAH_NULL); |
| dhd_prot_packet_free(dhd, (ulong*)locker->pkt, |
| locker->pkttype, TRUE); |
| } |
| } |
| #if defined(DHD_PKTID_AUDIT_ENABLED) |
| else { |
| DHD_PKTID_AUDIT(dhd, map, nkey, DHD_TEST_IS_FREE); |
| } |
| #endif /* DHD_PKTID_AUDIT_ENABLED */ |
| |
| locker->pkt = NULL; /* clear saved pkt */ |
| locker->len = 0; |
| } |
| |
| #if defined(DHD_PKTID_AUDIT_ENABLED) |
| if (map->pktid_audit != (struct bcm_mwbmap *)NULL) { |
| bcm_mwbmap_fini(osh, map->pktid_audit); /* Destruct pktid_audit */ |
| map->pktid_audit = (struct bcm_mwbmap *)NULL; |
| if (map->pktid_audit_lock) { |
| DHD_PKTID_AUDIT_LOCK_DEINIT(osh, map->pktid_audit_lock); |
| } |
| } |
| #endif /* DHD_PKTID_AUDIT_ENABLED */ |
| |
| DHD_PKTID_UNLOCK(map->pktid_lock, flags); |
| DHD_PKTID_LOCK_DEINIT(osh, map->pktid_lock); |
| |
| #ifdef DHD_USE_STATIC_PKTIDMAP |
| DHD_OS_PREFREE(dhd, handle, dhd_pktid_map_sz); |
| #else |
| MFREE(osh, handle, dhd_pktid_map_sz); |
| #endif /* DHD_USE_STATIC_PKTIDMAP */ |
| } |
| |
| #ifdef IOCTLRESP_USE_CONSTMEM |
| /** Called in detach scenario. Releasing IOCTL buffers. */ |
| static void |
| dhd_pktid_map_fini_ioctl(dhd_pub_t *dhd, dhd_pktid_map_handle_t *handle) |
| { |
| uint32 nkey; |
| dhd_pktid_map_t *map; |
| uint32 dhd_pktid_map_sz; |
| dhd_pktid_item_t *locker; |
| uint32 map_items; |
| uint32 flags; |
| osl_t *osh = dhd->osh; |
| |
| if (handle == NULL) { |
| return; |
| } |
| |
| map = (dhd_pktid_map_t *)handle; |
| flags = DHD_PKTID_LOCK(map->pktid_lock); |
| |
| dhd_pktid_map_sz = DHD_PKTID_MAP_SZ(map->items); |
| |
| nkey = 1; /* skip reserved KEY #0, and start from 1 */ |
| locker = &map->lockers[nkey]; |
| |
| map_items = DHD_PKIDMAP_ITEMS(map->items); |
| |
| for (; nkey <= map_items; nkey++, locker++) { |
| |
| if (locker->state == LOCKER_IS_BUSY) { /* numbered key still in use */ |
| |
| locker->state = LOCKER_IS_FREE; /* force open the locker */ |
| |
| #if defined(DHD_PKTID_AUDIT_ENABLED) |
| DHD_PKTID_AUDIT(dhd, map, nkey, DHD_DUPLICATE_FREE); /* duplicate frees */ |
| #endif /* DHD_PKTID_AUDIT_ENABLED */ |
| |
| { |
| dhd_dma_buf_t retbuf; |
| retbuf.va = locker->pkt; |
| retbuf.len = locker->len; |
| retbuf.pa = locker->pa; |
| retbuf.dmah = locker->dmah; |
| retbuf.secdma = locker->secdma; |
| |
| /* This could be a callback registered with dhd_pktid_map */ |
| DHD_PKTID_UNLOCK(map->pktid_lock, flags); |
| free_ioctl_return_buffer(dhd, &retbuf); |
| flags = DHD_PKTID_LOCK(map->pktid_lock); |
| } |
| } |
| #if defined(DHD_PKTID_AUDIT_ENABLED) |
| else { |
| DHD_PKTID_AUDIT(dhd, map, nkey, DHD_TEST_IS_FREE); |
| } |
| #endif /* DHD_PKTID_AUDIT_ENABLED */ |
| |
| locker->pkt = NULL; /* clear saved pkt */ |
| locker->len = 0; |
| } |
| |
| #if defined(DHD_PKTID_AUDIT_ENABLED) |
| if (map->pktid_audit != (struct bcm_mwbmap *)NULL) { |
| bcm_mwbmap_fini(osh, map->pktid_audit); /* Destruct pktid_audit */ |
| map->pktid_audit = (struct bcm_mwbmap *)NULL; |
| if (map->pktid_audit_lock) { |
| DHD_PKTID_AUDIT_LOCK_DEINIT(osh, map->pktid_audit_lock); |
| } |
| } |
| #endif /* DHD_PKTID_AUDIT_ENABLED */ |
| |
| DHD_PKTID_UNLOCK(map->pktid_lock, flags); |
| DHD_PKTID_LOCK_DEINIT(osh, map->pktid_lock); |
| |
| #ifdef DHD_USE_STATIC_PKTIDMAP |
| DHD_OS_PREFREE(dhd, handle, dhd_pktid_map_sz); |
| #else |
| MFREE(osh, handle, dhd_pktid_map_sz); |
| #endif /* DHD_USE_STATIC_PKTIDMAP */ |
| } |
| #endif /* IOCTLRESP_USE_CONSTMEM */ |
| |
| /** Get the pktid free count */ |
| static INLINE uint32 BCMFASTPATH |
| dhd_pktid_map_avail_cnt(dhd_pktid_map_handle_t *handle) |
| { |
| dhd_pktid_map_t *map; |
| uint32 flags; |
| uint32 avail; |
| |
| ASSERT(handle != NULL); |
| map = (dhd_pktid_map_t *)handle; |
| |
| flags = DHD_PKTID_LOCK(map->pktid_lock); |
| avail = map->avail; |
| DHD_PKTID_UNLOCK(map->pktid_lock, flags); |
| |
| return avail; |
| } |
| |
| /** |
| * Allocate locker, save pkt contents, and return the locker's numbered key. |
| * dhd_pktid_map_alloc() is not reentrant, and is the caller's responsibility. |
| * Caller must treat a returned value DHD_PKTID_INVALID as a failure case, |
| * implying a depleted pool of pktids. |
| */ |
| |
| static INLINE uint32 |
| __dhd_pktid_map_reserve(dhd_pub_t *dhd, dhd_pktid_map_handle_t *handle, void *pkt) |
| { |
| uint32 nkey; |
| dhd_pktid_map_t *map; |
| dhd_pktid_item_t *locker; |
| |
| ASSERT(handle != NULL); |
| map = (dhd_pktid_map_t *)handle; |
| |
| if (map->avail <= 0) { /* no more pktids to allocate */ |
| map->failures++; |
| DHD_INFO(("%s:%d: failed, no free keys\n", __FUNCTION__, __LINE__)); |
| return DHD_PKTID_INVALID; /* failed alloc request */ |
| } |
| |
| ASSERT(map->avail <= map->items); |
| nkey = map->keys[map->avail]; /* fetch a free locker, pop stack */ |
| locker = &map->lockers[nkey]; /* save packet metadata in locker */ |
| map->avail--; |
| locker->pkt = pkt; /* pkt is saved, other params not yet saved. */ |
| locker->len = 0; |
| locker->state = LOCKER_IS_BUSY; /* reserve this locker */ |
| |
| #if defined(DHD_PKTID_AUDIT_MAP) |
| DHD_PKTID_AUDIT(dhd, map, nkey, DHD_DUPLICATE_ALLOC); /* Audit duplicate alloc */ |
| #endif /* DHD_PKTID_AUDIT_MAP */ |
| |
| ASSERT(nkey != DHD_PKTID_INVALID); |
| return nkey; /* return locker's numbered key */ |
| } |
| |
| |
| /** |
| * dhd_pktid_map_reserve - reserve a unique numbered key. Reserved locker is not |
| * yet populated. Invoke the pktid save api to populate the packet parameters |
| * into the locker. |
| * Wrapper that takes the required lock when called directly. |
| */ |
| static INLINE uint32 |
| dhd_pktid_map_reserve(dhd_pub_t *dhd, dhd_pktid_map_handle_t *handle, void *pkt) |
| { |
| dhd_pktid_map_t *map; |
| uint32 flags; |
| uint32 ret; |
| |
| ASSERT(handle != NULL); |
| map = (dhd_pktid_map_t *)handle; |
| flags = DHD_PKTID_LOCK(map->pktid_lock); |
| ret = __dhd_pktid_map_reserve(dhd, handle, pkt); |
| DHD_PKTID_UNLOCK(map->pktid_lock, flags); |
| |
| return ret; |
| } |
| |
| static INLINE void |
| __dhd_pktid_map_save(dhd_pub_t *dhd, dhd_pktid_map_handle_t *handle, void *pkt, |
| uint32 nkey, dmaaddr_t pa, uint32 len, uint8 dir, void *dmah, void *secdma, |
| dhd_pkttype_t pkttype) |
| { |
| dhd_pktid_map_t *map; |
| dhd_pktid_item_t *locker; |
| |
| ASSERT(handle != NULL); |
| map = (dhd_pktid_map_t *)handle; |
| |
| ASSERT((nkey != DHD_PKTID_INVALID) && (nkey <= DHD_PKIDMAP_ITEMS(map->items))); |
| |
| locker = &map->lockers[nkey]; |
| |
| ASSERT(((locker->state == LOCKER_IS_BUSY) && (locker->pkt == pkt)) || |
| ((locker->state == LOCKER_IS_RSVD) && (locker->pkt == NULL))); |
| |
| #if defined(DHD_PKTID_AUDIT_MAP) |
| DHD_PKTID_AUDIT(dhd, map, nkey, DHD_TEST_IS_ALLOC); /* apriori, reservation */ |
| #endif /* DHD_PKTID_AUDIT_MAP */ |
| |
| /* store contents in locker */ |
| locker->dir = dir; |
| locker->pa = pa; |
| locker->len = (uint16)len; /* 16bit len */ |
| locker->dmah = dmah; /* 16bit len */ |
| locker->secdma = secdma; |
| locker->pkttype = pkttype; |
| locker->pkt = pkt; |
| locker->state = LOCKER_IS_BUSY; /* make this locker busy */ |
| } |
| |
| /** |
| * dhd_pktid_map_save - Save a packet's parameters into a locker corresponding |
| * to a previously reserved unique numbered key. |
| * Wrapper that takes the required lock when called directly. |
| */ |
| static INLINE void |
| dhd_pktid_map_save(dhd_pub_t *dhd, dhd_pktid_map_handle_t *handle, void *pkt, |
| uint32 nkey, dmaaddr_t pa, uint32 len, uint8 dir, void *dmah, void *secdma, |
| dhd_pkttype_t pkttype) |
| { |
| dhd_pktid_map_t *map; |
| uint32 flags; |
| |
| ASSERT(handle != NULL); |
| map = (dhd_pktid_map_t *)handle; |
| flags = DHD_PKTID_LOCK(map->pktid_lock); |
| __dhd_pktid_map_save(dhd, handle, pkt, nkey, pa, len, |
| dir, dmah, secdma, pkttype); |
| DHD_PKTID_UNLOCK(map->pktid_lock, flags); |
| } |
| |
| /** |
| * dhd_pktid_map_alloc - Allocate a unique numbered key and save the packet |
| * contents into the corresponding locker. Return the numbered key. |
| */ |
| static uint32 BCMFASTPATH |
| dhd_pktid_map_alloc(dhd_pub_t *dhd, dhd_pktid_map_handle_t *handle, void *pkt, |
| dmaaddr_t pa, uint32 len, uint8 dir, void *dmah, void *secdma, |
| dhd_pkttype_t pkttype) |
| { |
| uint32 nkey; |
| uint32 flags; |
| dhd_pktid_map_t *map; |
| |
| ASSERT(handle != NULL); |
| map = (dhd_pktid_map_t *)handle; |
| |
| flags = DHD_PKTID_LOCK(map->pktid_lock); |
| |
| nkey = __dhd_pktid_map_reserve(dhd, handle, pkt); |
| if (nkey != DHD_PKTID_INVALID) { |
| __dhd_pktid_map_save(dhd, handle, pkt, nkey, pa, |
| len, dir, dmah, secdma, pkttype); |
| #if defined(DHD_PKTID_AUDIT_MAP) |
| DHD_PKTID_AUDIT(dhd, map, nkey, DHD_TEST_IS_ALLOC); /* apriori, reservation */ |
| #endif /* DHD_PKTID_AUDIT_MAP */ |
| } |
| |
| DHD_PKTID_UNLOCK(map->pktid_lock, flags); |
| |
| return nkey; |
| } |
| |
| /** |
| * dhd_pktid_map_free - Given a numbered key, return the locker contents. |
| * dhd_pktid_map_free() is not reentrant, and is the caller's responsibility. |
| * Caller may not free a pktid value DHD_PKTID_INVALID or an arbitrary pktid |
| * value. Only a previously allocated pktid may be freed. |
| */ |
| static void * BCMFASTPATH |
| dhd_pktid_map_free(dhd_pub_t *dhd, dhd_pktid_map_handle_t *handle, uint32 nkey, |
| dmaaddr_t *pa, uint32 *len, void **dmah, void **secdma, |
| dhd_pkttype_t pkttype, bool rsv_locker) |
| { |
| dhd_pktid_map_t *map; |
| dhd_pktid_item_t *locker; |
| void * pkt; |
| uint32 flags; |
| unsigned long locker_addr; |
| |
| ASSERT(handle != NULL); |
| |
| map = (dhd_pktid_map_t *)handle; |
| |
| flags = DHD_PKTID_LOCK(map->pktid_lock); |
| |
| ASSERT((nkey != DHD_PKTID_INVALID) && (nkey <= DHD_PKIDMAP_ITEMS(map->items))); |
| |
| locker = &map->lockers[nkey]; |
| |
| #if defined(DHD_PKTID_AUDIT_MAP) |
| DHD_PKTID_AUDIT(dhd, map, nkey, DHD_DUPLICATE_FREE); /* Audit duplicate FREE */ |
| #endif /* DHD_PKTID_AUDIT_MAP */ |
| |
| if (locker->state == LOCKER_IS_FREE) { /* Debug check for cloned numbered key */ |
| DHD_ERROR(("%s:%d: Error! freeing invalid pktid<%u>\n", |
| __FUNCTION__, __LINE__, nkey)); |
| ASSERT(locker->state != LOCKER_IS_FREE); |
| |
| DHD_PKTID_UNLOCK(map->pktid_lock, flags); |
| return NULL; |
| } |
| |
| /* Check for the colour of the buffer i.e The buffer posted for TX, |
| * should be freed for TX completion. Similarly the buffer posted for |
| * IOCTL should be freed for IOCT completion etc. |
| */ |
| if ((pkttype != PKTTYPE_NO_CHECK) && (locker->pkttype != pkttype)) { |
| |
| DHD_PKTID_UNLOCK(map->pktid_lock, flags); |
| |
| DHD_ERROR(("%s:%d: Error! Invalid Buffer Free for pktid<%u> \n", |
| __FUNCTION__, __LINE__, nkey)); |
| #ifdef BCMDMA64OSL |
| PHYSADDRTOULONG(locker->pa, locker_addr); |
| #else |
| locker_addr = PHYSADDRLO(locker->pa); |
| #endif /* BCMDMA64OSL */ |
| DHD_ERROR(("%s:%d: locker->state <%d>, locker->pkttype <%d>," |
| "pkttype <%d> locker->pa <0x%lx> \n", |
| __FUNCTION__, __LINE__, locker->state, locker->pkttype, |
| pkttype, locker_addr)); |
| |
| ASSERT(locker->pkttype == pkttype); |
| |
| return NULL; |
| } |
| |
| if (rsv_locker == DHD_PKTID_FREE_LOCKER) { |
| map->avail++; |
| map->keys[map->avail] = nkey; /* make this numbered key available */ |
| locker->state = LOCKER_IS_FREE; /* open and free Locker */ |
| } else { |
| /* pktid will be reused, but the locker does not have a valid pkt */ |
| locker->state = LOCKER_IS_RSVD; |
| } |
| |
| #if defined(DHD_PKTID_AUDIT_MAP) |
| DHD_PKTID_AUDIT(dhd, map, nkey, DHD_TEST_IS_FREE); |
| #endif /* DHD_PKTID_AUDIT_MAP */ |
| |
| *pa = locker->pa; /* return contents of locker */ |
| *len = (uint32)locker->len; |
| *dmah = locker->dmah; |
| *secdma = locker->secdma; |
| |
| pkt = locker->pkt; |
| locker->pkt = NULL; /* Clear pkt */ |
| locker->len = 0; |
| |
| DHD_PKTID_UNLOCK(map->pktid_lock, flags); |
| return pkt; |
| } |
| |
| #else /* ! DHD_PCIE_PKTID */ |
| |
| |
| typedef struct pktlist { |
| PKT_LIST *tx_pkt_list; /* list for tx packets */ |
| PKT_LIST *rx_pkt_list; /* list for rx packets */ |
| PKT_LIST *ctrl_pkt_list; /* list for ioctl/event buf post */ |
| } pktlists_t; |
| |
| /* |
| * Given that each workitem only uses a 32bit pktid, only 32bit hosts may avail |
| * of a one to one mapping 32bit pktptr and a 32bit pktid. |
| * |
| * - When PKTIDMAP is not used, DHD_NATIVE_TO_PKTID variants will never fail. |
| * - Neither DHD_NATIVE_TO_PKTID nor DHD_PKTID_TO_NATIVE need to be protected by |
| * a lock. |
| * - Hence DHD_PKTID_INVALID is not defined when DHD_PCIE_PKTID is undefined. |
| */ |
| #define DHD_PKTID32(pktptr32) ((uint32)(pktptr32)) |
| #define DHD_PKTPTR32(pktid32) ((void *)(pktid32)) |
| |
| |
| static INLINE uint32 dhd_native_to_pktid(dhd_pktid_map_handle_t *map, void *pktptr32, |
| dmaaddr_t pa, uint32 dma_len, void *dmah, void *secdma, |
| dhd_pkttype_t pkttype); |
| static INLINE void * dhd_pktid_to_native(dhd_pktid_map_handle_t *map, uint32 pktid32, |
| dmaaddr_t *pa, uint32 *dma_len, void **dmah, void **secdma, |
| dhd_pkttype_t pkttype); |
| |
| static dhd_pktid_map_handle_t * |
| dhd_pktid_map_init(dhd_pub_t *dhd, uint32 num_items, uint32 index) |
| { |
| osl_t *osh = dhd->osh; |
| pktlists_t *handle = NULL; |
| |
| if ((handle = (pktlists_t *) MALLOCZ(osh, sizeof(pktlists_t))) == NULL) { |
| DHD_ERROR(("%s:%d: MALLOC failed for lists allocation, size=%d\n", |
| __FUNCTION__, __LINE__, sizeof(pktlists_t))); |
| goto error_done; |
| } |
| |
| if ((handle->tx_pkt_list = (PKT_LIST *) MALLOC(osh, sizeof(PKT_LIST))) == NULL) { |
| DHD_ERROR(("%s:%d: MALLOC failed for list allocation, size=%d\n", |
| __FUNCTION__, __LINE__, sizeof(PKT_LIST))); |
| goto error; |
| } |
| |
| if ((handle->rx_pkt_list = (PKT_LIST *) MALLOC(osh, sizeof(PKT_LIST))) == NULL) { |
| DHD_ERROR(("%s:%d: MALLOC failed for list allocation, size=%d\n", |
| __FUNCTION__, __LINE__, sizeof(PKT_LIST))); |
| goto error; |
| } |
| |
| if ((handle->ctrl_pkt_list = (PKT_LIST *) MALLOC(osh, sizeof(PKT_LIST))) == NULL) { |
| DHD_ERROR(("%s:%d: MALLOC failed for list allocation, size=%d\n", |
| __FUNCTION__, __LINE__, sizeof(PKT_LIST))); |
| goto error; |
| } |
| |
| PKTLIST_INIT(handle->tx_pkt_list); |
| PKTLIST_INIT(handle->rx_pkt_list); |
| PKTLIST_INIT(handle->ctrl_pkt_list); |
| |
| return (dhd_pktid_map_handle_t *) handle; |
| |
| error: |
| if (handle->ctrl_pkt_list) { |
| MFREE(osh, handle->ctrl_pkt_list, sizeof(PKT_LIST)); |
| } |
| |
| if (handle->rx_pkt_list) { |
| MFREE(osh, handle->rx_pkt_list, sizeof(PKT_LIST)); |
| } |
| |
| if (handle->tx_pkt_list) { |
| MFREE(osh, handle->tx_pkt_list, sizeof(PKT_LIST)); |
| } |
| |
| if (handle) { |
| MFREE(osh, handle, sizeof(pktlists_t)); |
| } |
| |
| error_done: |
| return (dhd_pktid_map_handle_t *)NULL; |
| } |
| |
| static void |
| dhd_pktid_map_fini(dhd_pub_t *dhd, dhd_pktid_map_handle_t *map) |
| { |
| osl_t *osh = dhd->osh; |
| pktlists_t *handle = (pktlists_t *) map; |
| |
| ASSERT(handle != NULL); |
| if (handle == (pktlists_t *)NULL) { |
| return; |
| } |
| |
| if (handle->ctrl_pkt_list) { |
| PKTLIST_FINI(handle->ctrl_pkt_list); |
| MFREE(osh, handle->ctrl_pkt_list, sizeof(PKT_LIST)); |
| } |
| |
| if (handle->rx_pkt_list) { |
| PKTLIST_FINI(handle->rx_pkt_list); |
| MFREE(osh, handle->rx_pkt_list, sizeof(PKT_LIST)); |
| } |
| |
| if (handle->tx_pkt_list) { |
| PKTLIST_FINI(handle->tx_pkt_list); |
| MFREE(osh, handle->tx_pkt_list, sizeof(PKT_LIST)); |
| } |
| |
| if (handle) { |
| MFREE(osh, handle, sizeof(pktlists_t)); |
| } |
| } |
| |
| /** Save dma parameters into the packet's pkttag and convert a pktptr to pktid */ |
| static INLINE uint32 |
| dhd_native_to_pktid(dhd_pktid_map_handle_t *map, void *pktptr32, |
| dmaaddr_t pa, uint32 dma_len, void *dmah, void *secdma, |
| dhd_pkttype_t pkttype) |
| { |
| pktlists_t *handle = (pktlists_t *) map; |
| ASSERT(pktptr32 != NULL); |
| DHD_PKT_SET_DMA_LEN(pktptr32, dma_len); |
| DHD_PKT_SET_DMAH(pktptr32, dmah); |
| DHD_PKT_SET_PA(pktptr32, pa); |
| DHD_PKT_SET_SECDMA(pktptr32, secdma); |
| |
| if (pkttype == PKTTYPE_DATA_TX) { |
| PKTLIST_ENQ(handle->tx_pkt_list, pktptr32); |
| } else if (pkttype == PKTTYPE_DATA_RX) { |
| PKTLIST_ENQ(handle->rx_pkt_list, pktptr32); |
| } else { |
| PKTLIST_ENQ(handle->ctrl_pkt_list, pktptr32); |
| } |
| |
| return DHD_PKTID32(pktptr32); |
| } |
| |
| /** Convert a pktid to pktptr and retrieve saved dma parameters from packet */ |
| static INLINE void * |
| dhd_pktid_to_native(dhd_pktid_map_handle_t *map, uint32 pktid32, |
| dmaaddr_t *pa, uint32 *dma_len, void **dmah, void **secdma, |
| dhd_pkttype_t pkttype) |
| { |
| pktlists_t *handle = (pktlists_t *) map; |
| void *pktptr32; |
| |
| ASSERT(pktid32 != 0U); |
| pktptr32 = DHD_PKTPTR32(pktid32); |
| *dma_len = DHD_PKT_GET_DMA_LEN(pktptr32); |
| *dmah = DHD_PKT_GET_DMAH(pktptr32); |
| *pa = DHD_PKT_GET_PA(pktptr32); |
| *secdma = DHD_PKT_GET_SECDMA(pktptr32); |
| |
| if (pkttype == PKTTYPE_DATA_TX) { |
| PKTLIST_UNLINK(handle->tx_pkt_list, pktptr32); |
| } else if (pkttype == PKTTYPE_DATA_RX) { |
| PKTLIST_UNLINK(handle->rx_pkt_list, pktptr32); |
| } else { |
| PKTLIST_UNLINK(handle->ctrl_pkt_list, pktptr32); |
| } |
| |
| return pktptr32; |
| } |
| |
| #define DHD_NATIVE_TO_PKTID_RSV(dhd, map, pkt) DHD_PKTID32(pkt) |
| |
| #define DHD_NATIVE_TO_PKTID_SAVE(dhd, map, pkt, nkey, pa, len, dma_dir, dmah, secdma, pkttype) \ |
| ({ BCM_REFERENCE(dhd); BCM_REFERENCE(nkey); BCM_REFERENCE(dma_dir); \ |
| dhd_native_to_pktid((dhd_pktid_map_handle_t *) map, (pkt), (pa), (len), \ |
| (dmah), (secdma), (dhd_pkttype_t)(pkttype)); \ |
| }) |
| |
| #define DHD_NATIVE_TO_PKTID(dhd, map, pkt, pa, len, dma_dir, dmah, secdma, pkttype) \ |
| ({ BCM_REFERENCE(dhd); BCM_REFERENCE(dma_dir); \ |
| dhd_native_to_pktid((dhd_pktid_map_handle_t *) map, (pkt), (pa), (len), \ |
| (dmah), (secdma), (dhd_pkttype_t)(pkttype)); \ |
| }) |
| |
| #define DHD_PKTID_TO_NATIVE(dhd, map, pktid, pa, len, dmah, secdma, pkttype) \ |
| ({ BCM_REFERENCE(dhd); BCM_REFERENCE(pkttype); \ |
| dhd_pktid_to_native((dhd_pktid_map_handle_t *) map, (uint32)(pktid), \ |
| (dmaaddr_t *)&(pa), (uint32 *)&(len), (void **)&(dmah), \ |
| (void **)&secdma, (dhd_pkttype_t)(pkttype)); \ |
| }) |
| |
| #define DHD_PKTID_AVAIL(map) (~0) |
| |
| #endif /* ! DHD_PCIE_PKTID */ |
| |
| /* +------------------ End of PCIE DHD PKTID MAPPER -----------------------+ */ |
| |
| |
| /** |
| * The PCIE FD protocol layer is constructed in two phases: |
| * Phase 1. dhd_prot_attach() |
| * Phase 2. dhd_prot_init() |
| * |
| * dhd_prot_attach() - Allocates a dhd_prot_t object and resets all its fields. |
| * All Common rings are allose attached (msgbuf_ring_t objects are allocated |
| * with DMA-able buffers). |
| * All dhd_dma_buf_t objects are also allocated here. |
| * |
| * As dhd_prot_attach is invoked prior to the pcie_shared object is read, any |
| * initialization of objects that requires information advertized by the dongle |
| * may not be performed here. |
| * E.g. the number of TxPost flowrings is not know at this point, neither do |
| * we know shich form of D2H DMA sync mechanism is advertized by the dongle, or |
| * whether the dongle supports DMA-ing of WR/RD indices for the H2D and/or D2H |
| * rings (common + flow). |
| * |
| * dhd_prot_init() is invoked after the bus layer has fetched the information |
| * advertized by the dongle in the pcie_shared_t. |
| */ |
| int |
| dhd_prot_attach(dhd_pub_t *dhd) |
| { |
| osl_t *osh = dhd->osh; |
| dhd_prot_t *prot; |
| |
| /* Allocate prot structure */ |
| if (!(prot = (dhd_prot_t *)DHD_OS_PREALLOC(dhd, DHD_PREALLOC_PROT, |
| sizeof(dhd_prot_t)))) { |
| DHD_ERROR(("%s: kmalloc failed\n", __FUNCTION__)); |
| goto fail; |
| } |
| memset(prot, 0, sizeof(*prot)); |
| |
| prot->osh = osh; |
| dhd->prot = prot; |
| |
| /* DMAing ring completes supported? FALSE by default */ |
| dhd->dma_d2h_ring_upd_support = FALSE; |
| dhd->dma_h2d_ring_upd_support = FALSE; |
| |
| /* Common Ring Allocations */ |
| |
| /* Ring 0: H2D Control Submission */ |
| if (dhd_prot_ring_attach(dhd, &prot->h2dring_ctrl_subn, "h2dctrl", |
| H2DRING_CTRL_SUB_MAX_ITEM, H2DRING_CTRL_SUB_ITEMSIZE, |
| BCMPCIE_H2D_MSGRING_CONTROL_SUBMIT) != BCME_OK) { |
| DHD_ERROR(("%s: dhd_prot_ring_attach H2D Ctrl Submission failed\n", |
| __FUNCTION__)); |
| goto fail; |
| } |
| |
| /* Ring 1: H2D Receive Buffer Post */ |
| if (dhd_prot_ring_attach(dhd, &prot->h2dring_rxp_subn, "h2drxp", |
| H2DRING_RXPOST_MAX_ITEM, H2DRING_RXPOST_ITEMSIZE, |
| BCMPCIE_H2D_MSGRING_RXPOST_SUBMIT) != BCME_OK) { |
| DHD_ERROR(("%s: dhd_prot_ring_attach H2D RxPost failed\n", |
| __FUNCTION__)); |
| goto fail; |
| } |
| |
| /* Ring 2: D2H Control Completion */ |
| if (dhd_prot_ring_attach(dhd, &prot->d2hring_ctrl_cpln, "d2hctrl", |
| D2HRING_CTRL_CMPLT_MAX_ITEM, D2HRING_CTRL_CMPLT_ITEMSIZE, |
| BCMPCIE_D2H_MSGRING_CONTROL_COMPLETE) != BCME_OK) { |
| DHD_ERROR(("%s: dhd_prot_ring_attach D2H Ctrl Completion failed\n", |
| __FUNCTION__)); |
| goto fail; |
| } |
| |
| /* Ring 3: D2H Transmit Complete */ |
| if (dhd_prot_ring_attach(dhd, &prot->d2hring_tx_cpln, "d2htxcpl", |
| D2HRING_TXCMPLT_MAX_ITEM, D2HRING_TXCMPLT_ITEMSIZE, |
| BCMPCIE_D2H_MSGRING_TX_COMPLETE) != BCME_OK) { |
| DHD_ERROR(("%s: dhd_prot_ring_attach D2H Tx Completion failed\n", |
| __FUNCTION__)); |
| goto fail; |
| |
| } |
| |
| /* Ring 4: D2H Receive Complete */ |
| if (dhd_prot_ring_attach(dhd, &prot->d2hring_rx_cpln, "d2hrxcpl", |
| D2HRING_RXCMPLT_MAX_ITEM, D2HRING_RXCMPLT_ITEMSIZE, |
| BCMPCIE_D2H_MSGRING_RX_COMPLETE) != BCME_OK) { |
| DHD_ERROR(("%s: dhd_prot_ring_attach D2H Rx Completion failed\n", |
| __FUNCTION__)); |
| goto fail; |
| |
| } |
| |
| /* |
| * Max number of flowrings is not yet known. msgbuf_ring_t with DMA-able |
| * buffers for flowrings will be instantiated, in dhd_prot_init() . |
| * See dhd_prot_flowrings_pool_attach() |
| */ |
| /* ioctl response buffer */ |
| if (dhd_dma_buf_alloc(dhd, &prot->retbuf, IOCT_RETBUF_SIZE)) { |
| goto fail; |
| } |
| |
| /* IOCTL request buffer */ |
| if (dhd_dma_buf_alloc(dhd, &prot->ioctbuf, IOCT_RETBUF_SIZE)) { |
| goto fail; |
| } |
| |
| /* Scratch buffer for dma rx offset */ |
| if (dhd_dma_buf_alloc(dhd, &prot->d2h_dma_scratch_buf, DMA_D2H_SCRATCH_BUF_LEN)) { |
| goto fail; |
| } |
| |
| /* scratch buffer bus throughput measurement */ |
| if (dhd_dma_buf_alloc(dhd, &prot->host_bus_throughput_buf, DHD_BUS_TPUT_BUF_LEN)) { |
| goto fail; |
| } |
| |
| #ifdef DHD_RX_CHAINING |
| dhd_rxchain_reset(&prot->rxchain); |
| #endif |
| |
| #if defined(DHD_LB) |
| |
| /* Initialize the work queues to be used by the Load Balancing logic */ |
| #if defined(DHD_LB_TXC) |
| { |
| void *buffer; |
| buffer = MALLOC(dhd->osh, sizeof(void*) * DHD_LB_WORKQ_SZ); |
| bcm_workq_init(&prot->tx_compl_prod, &prot->tx_compl_cons, |
| buffer, DHD_LB_WORKQ_SZ); |
| prot->tx_compl_prod_sync = 0; |
| DHD_INFO(("%s: created tx_compl_workq <%p,%d>\n", |
| __FUNCTION__, buffer, DHD_LB_WORKQ_SZ)); |
| } |
| #endif /* DHD_LB_TXC */ |
| |
| #if defined(DHD_LB_RXC) |
| { |
| void *buffer; |
| buffer = MALLOC(dhd->osh, sizeof(uint32) * DHD_LB_WORKQ_SZ); |
| bcm_workq_init(&prot->rx_compl_prod, &prot->rx_compl_cons, |
| buffer, DHD_LB_WORKQ_SZ); |
| prot->rx_compl_prod_sync = 0; |
| DHD_INFO(("%s: created rx_compl_workq <%p,%d>\n", |
| __FUNCTION__, buffer, DHD_LB_WORKQ_SZ)); |
| } |
| #endif /* DHD_LB_RXC */ |
| |
| #endif /* DHD_LB */ |
| |
| return BCME_OK; |
| |
| fail: |
| |
| #ifndef CONFIG_DHD_USE_STATIC_BUF |
| if (prot != NULL) { |
| dhd_prot_detach(dhd); |
| } |
| #endif /* CONFIG_DHD_USE_STATIC_BUF */ |
| |
| return BCME_NOMEM; |
| } /* dhd_prot_attach */ |
| |
| |
| /** |
| * dhd_prot_init - second stage of dhd_prot_attach. Now that the dongle has |
| * completed it's initialization of the pcie_shared structure, we may now fetch |
| * the dongle advertized features and adjust the protocol layer accordingly. |
| * |
| * dhd_prot_init() may be invoked again after a dhd_prot_reset(). |
| */ |
| int |
| dhd_prot_init(dhd_pub_t *dhd) |
| { |
| sh_addr_t base_addr; |
| dhd_prot_t *prot = dhd->prot; |
| |
| /* PKTID handle INIT */ |
| if (prot->pktid_map_handle != NULL) { |
| DHD_ERROR(("%s: pktid_map_handle already set!\n", __FUNCTION__)); |
| ASSERT(0); |
| return BCME_ERROR; |
| } |
| |
| #ifdef IOCTLRESP_USE_CONSTMEM |
| if (prot->pktid_map_handle_ioctl != NULL) { |
| DHD_ERROR(("%s: pktid_map_handle_ioctl already set!\n", __FUNCTION__)); |
| ASSERT(0); |
| return BCME_ERROR; |
| } |
| #endif /* IOCTLRESP_USE_CONSTMEM */ |
| |
| prot->pktid_map_handle = DHD_NATIVE_TO_PKTID_INIT(dhd, MAX_PKTID_ITEMS, PKTID_MAP_HANDLE); |
| if (prot->pktid_map_handle == NULL) { |
| DHD_ERROR(("%s: Unable to map packet id's\n", __FUNCTION__)); |
| ASSERT(0); |
| return BCME_NOMEM; |
| } |
| |
| #ifdef IOCTLRESP_USE_CONSTMEM |
| prot->pktid_map_handle_ioctl = DHD_NATIVE_TO_PKTID_INIT(dhd, |
| DHD_FLOWRING_MAX_IOCTLRESPBUF_POST, PKTID_MAP_HANDLE_IOCTL); |
| if (prot->pktid_map_handle_ioctl == NULL) { |
| DHD_ERROR(("%s: Unable to map ioctl response buffers\n", __FUNCTION__)); |
| ASSERT(0); |
| return BCME_NOMEM; |
| } |
| #endif /* IOCTLRESP_USE_CONSTMEM */ |
| |
| /* Max pkts in ring */ |
| prot->max_tx_count = H2DRING_TXPOST_MAX_ITEM; |
| |
| DHD_INFO(("%s:%d: MAX_TX_COUNT = %d\n", __FUNCTION__, __LINE__, prot->max_tx_count)); |
| |
| /* Read max rx packets supported by dongle */ |
| dhd_bus_cmn_readshared(dhd->bus, &prot->max_rxbufpost, MAX_HOST_RXBUFS, 0); |
| if (prot->max_rxbufpost == 0) { |
| /* This would happen if the dongle firmware is not */ |
| /* using the latest shared structure template */ |
| prot->max_rxbufpost = DEFAULT_RX_BUFFERS_TO_POST; |
| } |
| DHD_INFO(("%s:%d: MAX_RXBUFPOST = %d\n", __FUNCTION__, __LINE__, prot->max_rxbufpost)); |
| |
| /* Initialize. bzero() would blow away the dma pointers. */ |
| prot->max_eventbufpost = DHD_FLOWRING_MAX_EVENTBUF_POST; |
| prot->max_ioctlrespbufpost = DHD_FLOWRING_MAX_IOCTLRESPBUF_POST; |
| |
| prot->cur_ioctlresp_bufs_posted = 0; |
| prot->active_tx_count = 0; |
| prot->data_seq_no = 0; |
| prot->ioctl_seq_no = 0; |
| prot->rxbufpost = 0; |
| prot->cur_event_bufs_posted = 0; |
| prot->ioctl_state = 0; |
| prot->curr_ioctl_cmd = 0; |
| prot->ioctl_received = IOCTL_WAIT; |
| |
| prot->dmaxfer.srcmem.va = NULL; |
| prot->dmaxfer.dstmem.va = NULL; |
| prot->dmaxfer.in_progress = FALSE; |
| |
| prot->metadata_dbg = FALSE; |
| prot->rx_metadata_offset = 0; |
| prot->tx_metadata_offset = 0; |
| prot->txp_threshold = TXP_FLUSH_MAX_ITEMS_FLUSH_CNT; |
| |
| prot->ioctl_trans_id = 0; |
| |
| /* Register the interrupt function upfront */ |
| /* remove corerev checks in data path */ |
| prot->mb_ring_fn = dhd_bus_get_mbintr_fn(dhd->bus); |
| |
| /* Initialize Common MsgBuf Rings */ |
| |
| dhd_prot_ring_init(dhd, &prot->h2dring_ctrl_subn); |
| dhd_prot_ring_init(dhd, &prot->h2dring_rxp_subn); |
| dhd_prot_ring_init(dhd, &prot->d2hring_ctrl_cpln); |
| dhd_prot_ring_init(dhd, &prot->d2hring_tx_cpln); |
| dhd_prot_ring_init(dhd, &prot->d2hring_rx_cpln); |
| |
| #if defined(PCIE_D2H_SYNC) |
| dhd_prot_d2h_sync_init(dhd); |
| #endif /* PCIE_D2H_SYNC */ |
| |
| dhd_prot_h2d_sync_init(dhd); |
| |
| /* init the scratch buffer */ |
| dhd_base_addr_htolpa(&base_addr, prot->d2h_dma_scratch_buf.pa); |
| dhd_bus_cmn_writeshared(dhd->bus, &base_addr, sizeof(base_addr), |
| D2H_DMA_SCRATCH_BUF, 0); |
| dhd_bus_cmn_writeshared(dhd->bus, &prot->d2h_dma_scratch_buf.len, |
| sizeof(prot->d2h_dma_scratch_buf.len), D2H_DMA_SCRATCH_BUF_LEN, 0); |
| |
| /* If supported by the host, indicate the memory block |
| * for completion writes / submission reads to shared space |
| */ |
| if (DMA_INDX_ENAB(dhd->dma_d2h_ring_upd_support)) { |
| dhd_base_addr_htolpa(&base_addr, prot->d2h_dma_indx_wr_buf.pa); |
| dhd_bus_cmn_writeshared(dhd->bus, &base_addr, sizeof(base_addr), |
| D2H_DMA_INDX_WR_BUF, 0); |
| dhd_base_addr_htolpa(&base_addr, prot->h2d_dma_indx_rd_buf.pa); |
| dhd_bus_cmn_writeshared(dhd->bus, &base_addr, sizeof(base_addr), |
| H2D_DMA_INDX_RD_BUF, 0); |
| } |
| |
| if (DMA_INDX_ENAB(dhd->dma_h2d_ring_upd_support)) { |
| dhd_base_addr_htolpa(&base_addr, prot->h2d_dma_indx_wr_buf.pa); |
| dhd_bus_cmn_writeshared(dhd->bus, &base_addr, sizeof(base_addr), |
| H2D_DMA_INDX_WR_BUF, 0); |
| dhd_base_addr_htolpa(&base_addr, prot->d2h_dma_indx_rd_buf.pa); |
| dhd_bus_cmn_writeshared(dhd->bus, &base_addr, sizeof(base_addr), |
| D2H_DMA_INDX_RD_BUF, 0); |
| } |
| |
| /* |
| * If the DMA-able buffers for flowring needs to come from a specific |
| * contiguous memory region, then setup prot->flowrings_dma_buf here. |
| * dhd_prot_flowrings_pool_attach() will carve out DMA-able buffers from |
| * this contiguous memory region, for each of the flowrings. |
| */ |
| |
| /* Pre-allocate pool of msgbuf_ring for flowrings */ |
| if (dhd_prot_flowrings_pool_attach(dhd) != BCME_OK) { |
| return BCME_ERROR; |
| } |
| |
| /* Host should configure soft doorbells if needed ... here */ |
| |
| /* Post to dongle host configured soft doorbells */ |
| dhd_msgbuf_ring_config_d2h_soft_doorbell(dhd); |
| |
| /* Post buffers for packet reception and ioctl/event responses */ |
| dhd_msgbuf_rxbuf_post(dhd, FALSE); /* alloc pkt ids */ |
| dhd_msgbuf_rxbuf_post_ioctlresp_bufs(dhd); |
| dhd_msgbuf_rxbuf_post_event_bufs(dhd); |
| |
| return BCME_OK; |
| } /* dhd_prot_init */ |
| |
| |
| /** |
| * dhd_prot_detach - PCIE FD protocol layer destructor. |
| * Unlink, frees allocated protocol memory (including dhd_prot) |
| */ |
| void |
| dhd_prot_detach(dhd_pub_t *dhd) |
| { |
| dhd_prot_t *prot = dhd->prot; |
| |
| /* Stop the protocol module */ |
| if (prot) { |
| |
| /* free up all DMA-able buffers allocated during prot attach/init */ |
| |
| dhd_dma_buf_free(dhd, &prot->d2h_dma_scratch_buf); |
| dhd_dma_buf_free(dhd, &prot->retbuf); /* ioctl return buffer */ |
| dhd_dma_buf_free(dhd, &prot->ioctbuf); |
| dhd_dma_buf_free(dhd, &prot->host_bus_throughput_buf); |
| |
| /* DMA-able buffers for DMAing H2D/D2H WR/RD indices */ |
| dhd_dma_buf_free(dhd, &prot->h2d_dma_indx_wr_buf); |
| dhd_dma_buf_free(dhd, &prot->h2d_dma_indx_rd_buf); |
| dhd_dma_buf_free(dhd, &prot->d2h_dma_indx_wr_buf); |
| dhd_dma_buf_free(dhd, &prot->d2h_dma_indx_rd_buf); |
| |
| /* Common MsgBuf Rings */ |
| dhd_prot_ring_detach(dhd, &prot->h2dring_ctrl_subn); |
| dhd_prot_ring_detach(dhd, &prot->h2dring_rxp_subn); |
| dhd_prot_ring_detach(dhd, &prot->d2hring_ctrl_cpln); |
| dhd_prot_ring_detach(dhd, &prot->d2hring_tx_cpln); |
| dhd_prot_ring_detach(dhd, &prot->d2hring_rx_cpln); |
| |
| /* Detach each DMA-able buffer and free the pool of msgbuf_ring_t */ |
| dhd_prot_flowrings_pool_detach(dhd); |
| |
| DHD_NATIVE_TO_PKTID_FINI(dhd, dhd->prot->pktid_map_handle); |
| |
| #ifndef CONFIG_DHD_USE_STATIC_BUF |
| MFREE(dhd->osh, dhd->prot, sizeof(dhd_prot_t)); |
| #endif /* CONFIG_DHD_USE_STATIC_BUF */ |
| |
| #if defined(DHD_LB) |
| #if defined(DHD_LB_TXC) |
| if (prot->tx_compl_prod.buffer) { |
| MFREE(dhd->osh, prot->tx_compl_prod.buffer, |
| sizeof(void*) * DHD_LB_WORKQ_SZ); |
| } |
| #endif /* DHD_LB_TXC */ |
| #if defined(DHD_LB_RXC) |
| if (prot->rx_compl_prod.buffer) { |
| MFREE(dhd->osh, prot->rx_compl_prod.buffer, |
| sizeof(void*) * DHD_LB_WORKQ_SZ); |
| } |
| #endif /* DHD_LB_RXC */ |
| #endif /* DHD_LB */ |
| |
| dhd->prot = NULL; |
| } |
| } /* dhd_prot_detach */ |
| |
| |
| /** |
| * dhd_prot_reset - Reset the protocol layer without freeing any objects. This |
| * may be invoked to soft reboot the dongle, without having to detach and attach |
| * the entire protocol layer. |
| * |
| * After dhd_prot_reset(), dhd_prot_init() may be invoked without going through |
| * a dhd_prot_attach() phase. |
| */ |
| void |
| dhd_prot_reset(dhd_pub_t *dhd) |
| { |
| struct dhd_prot *prot = dhd->prot; |
| |
| DHD_TRACE(("%s\n", __FUNCTION__)); |
| |
| if (prot == NULL) { |
| return; |
| } |
| |
| dhd_prot_flowrings_pool_reset(dhd); |
| |
| dhd_prot_ring_reset(dhd, &prot->h2dring_ctrl_subn); |
| dhd_prot_ring_reset(dhd, &prot->h2dring_rxp_subn); |
| dhd_prot_ring_reset(dhd, &prot->d2hring_ctrl_cpln); |
| dhd_prot_ring_reset(dhd, &prot->d2hring_tx_cpln); |
| dhd_prot_ring_reset(dhd, &prot->d2hring_rx_cpln); |
| |
| dhd_dma_buf_reset(dhd, &prot->retbuf); |
| dhd_dma_buf_reset(dhd, &prot->ioctbuf); |
| dhd_dma_buf_reset(dhd, &prot->d2h_dma_scratch_buf); |
| dhd_dma_buf_reset(dhd, &prot->h2d_dma_indx_rd_buf); |
| dhd_dma_buf_reset(dhd, &prot->h2d_dma_indx_wr_buf); |
| dhd_dma_buf_reset(dhd, &prot->d2h_dma_indx_rd_buf); |
| dhd_dma_buf_reset(dhd, &prot->d2h_dma_indx_wr_buf); |
| |
| |
| prot->rx_metadata_offset = 0; |
| prot->tx_metadata_offset = 0; |
| |
| prot->rxbufpost = 0; |
| prot->cur_event_bufs_posted = 0; |
| prot->cur_ioctlresp_bufs_posted = 0; |
| |
| prot->active_tx_count = 0; |
| prot->data_seq_no = 0; |
| prot->ioctl_seq_no = 0; |
| prot->ioctl_state = 0; |
| prot->curr_ioctl_cmd = 0; |
| prot->ioctl_received = IOCTL_WAIT; |
| prot->ioctl_trans_id = 0; |
| |
| /* dhd_flow_rings_init is located at dhd_bus_start, |
| * so when stopping bus, flowrings shall be deleted |
| */ |
| if (dhd->flow_rings_inited) { |
| dhd_flow_rings_deinit(dhd); |
| } |
| |
| if (prot->pktid_map_handle) { |
| DHD_NATIVE_TO_PKTID_FINI(dhd, prot->pktid_map_handle); |
| prot->pktid_map_handle = NULL; |
| } |
| |
| #ifdef IOCTLRESP_USE_CONSTMEM |
| if (prot->pktid_map_handle_ioctl) { |
| DHD_NATIVE_TO_PKTID_FINI_IOCTL(dhd, prot->pktid_map_handle_ioctl); |
| prot->pktid_map_handle_ioctl = NULL; |
| } |
| #endif /* IOCTLRESP_USE_CONSTMEM */ |
| } /* dhd_prot_reset */ |
| |
| |
| void |
| dhd_prot_rx_dataoffset(dhd_pub_t *dhd, uint32 rx_offset) |
| { |
| dhd_prot_t *prot = dhd->prot; |
| prot->rx_dataoffset = rx_offset; |
| } |
| |
| /** |
| * Initialize protocol: sync w/dongle state. |
| * Sets dongle media info (iswl, drv_version, mac address). |
| */ |
| int |
| dhd_sync_with_dongle(dhd_pub_t *dhd) |
| { |
| int ret = 0; |
| wlc_rev_info_t revinfo; |
| |
| |
| DHD_TRACE(("%s: Enter\n", __FUNCTION__)); |
| |
| dhd_os_set_ioctl_resp_timeout(IOCTL_RESP_TIMEOUT); |
| |
| |
| |
| #ifdef DHD_FW_COREDUMP |
| /* Check the memdump capability */ |
| dhd_get_memdump_info(dhd); |
| #endif /* DHD_FW_COREDUMP */ |
| #ifdef BCMASSERT_LOG |
| dhd_get_assert_info(dhd); |
| #endif /* BCMASSERT_LOG */ |
| |
| /* Get the device rev info */ |
| memset(&revinfo, 0, sizeof(revinfo)); |
| ret = dhd_wl_ioctl_cmd(dhd, WLC_GET_REVINFO, &revinfo, sizeof(revinfo), FALSE, 0); |
| if (ret < 0) { |
| DHD_ERROR(("%s: GET revinfo FAILED\n", __FUNCTION__)); |
| goto done; |
| } |
| DHD_ERROR(("%s: GET_REVINFO device 0x%x, vendor 0x%x, chipnum 0x%x\n", __FUNCTION__, |
| revinfo.deviceid, revinfo.vendorid, revinfo.chipnum)); |
| |
| dhd_process_cid_mac(dhd, TRUE); |
| ret = dhd_preinit_ioctls(dhd); |
| dhd_process_cid_mac(dhd, FALSE); |
| |
| /* Always assumes wl for now */ |
| dhd->iswl = TRUE; |
| done: |
| return ret; |
| } /* dhd_sync_with_dongle */ |
| |
| #if defined(DHD_LB) |
| |
| /* DHD load balancing: deferral of work to another online CPU */ |
| |
| /* DHD_LB_TXC DHD_LB_RXC DHD_LB_RXP dispatchers, in dhd_linux.c */ |
| extern void dhd_lb_tx_compl_dispatch(dhd_pub_t *dhdp); |
| extern void dhd_lb_rx_compl_dispatch(dhd_pub_t *dhdp); |
| extern void dhd_lb_rx_napi_dispatch(dhd_pub_t *dhdp); |
| |
| extern void dhd_lb_rx_pkt_enqueue(dhd_pub_t *dhdp, void *pkt, int ifidx); |
| |
| /** |
| * dhd_lb_dispatch - load balance by dispatch work to other CPU cores |
| * Note: rx_compl_tasklet is dispatched explicitly. |
| */ |
| static INLINE void |
| dhd_lb_dispatch(dhd_pub_t *dhdp, uint16 ring_idx) |
| { |
| switch (ring_idx) { |
| |
| #if defined(DHD_LB_TXC) |
| case BCMPCIE_D2H_MSGRING_TX_COMPLETE: |
| bcm_workq_prod_sync(&dhdp->prot->tx_compl_prod); /* flush WR index */ |
| dhd_lb_tx_compl_dispatch(dhdp); /* dispatch tx_compl_tasklet */ |
| break; |
| #endif /* DHD_LB_TXC */ |
| |
| case BCMPCIE_D2H_MSGRING_RX_COMPLETE: |
| { |
| #if defined(DHD_LB_RXC) |
| dhd_prot_t *prot = dhdp->prot; |
| /* Schedule the takslet only if we have to */ |
| if (prot->rxbufpost <= (prot->max_rxbufpost - RXBUFPOST_THRESHOLD)) { |
| /* flush WR index */ |
| bcm_workq_prod_sync(&dhdp->prot->rx_compl_prod); |
| dhd_lb_rx_compl_dispatch(dhdp); /* dispatch rx_compl_tasklet */ |
| } |
| #endif /* DHD_LB_RXC */ |
| #if defined(DHD_LB_RXP) |
| dhd_lb_rx_napi_dispatch(dhdp); /* dispatch rx_process_napi */ |
| #endif /* DHD_LB_RXP */ |
| break; |
| } |
| default: |
| break; |
| } |
| } |
| |
| |
| #if defined(DHD_LB_TXC) |
| /** |
| * DHD load balanced tx completion tasklet handler, that will perform the |
| * freeing of packets on the selected CPU. Packet pointers are delivered to |
| * this tasklet via the tx complete workq. |
| */ |
| void |
| dhd_lb_tx_compl_handler(unsigned long data) |
| { |
| int elem_ix; |
| void *pkt, **elem; |
| dmaaddr_t pa; |
| uint32 pa_len; |
| dhd_pub_t *dhd = (dhd_pub_t *)data; |
| dhd_prot_t *prot = dhd->prot; |
| bcm_workq_t *workq = &prot->tx_compl_cons; |
| uint32 count = 0; |
| |
| DHD_LB_STATS_TXC_PERCPU_CNT_INCR(dhd); |
| |
| while (1) { |
| elem_ix = bcm_ring_cons(WORKQ_RING(workq), DHD_LB_WORKQ_SZ); |
| |
| if (elem_ix == BCM_RING_EMPTY) { |
| break; |
| } |
| |
| elem = WORKQ_ELEMENT(void *, workq, elem_ix); |
| pkt = *elem; |
| |
| DHD_INFO(("%s: tx_compl_cons pkt<%p>\n", __FUNCTION__, pkt)); |
| |
| OSL_PREFETCH(PKTTAG(pkt)); |
| OSL_PREFETCH(pkt); |
| |
| pa = DHD_PKTTAG_PA((dhd_pkttag_fr_t *)PKTTAG(pkt)); |
| pa_len = DHD_PKTTAG_PA_LEN((dhd_pkttag_fr_t *)PKTTAG(pkt)); |
| |
| DMA_UNMAP(dhd->osh, pa, pa_len, DMA_RX, 0, 0); |
| |
| #if defined(BCMPCIE) |
| dhd_txcomplete(dhd, pkt, true); |
| #endif |
| |
| PKTFREE(dhd->osh, pkt, TRUE); |
| count++; |
| } |
| |
| /* smp_wmb(); */ |
| bcm_workq_cons_sync(workq); |
| DHD_LB_STATS_UPDATE_TXC_HISTO(dhd, count); |
| } |
| #endif /* DHD_LB_TXC */ |
| |
| #if defined(DHD_LB_RXC) |
| void |
| dhd_lb_rx_compl_handler(unsigned long data) |
| { |
| dhd_pub_t *dhd = (dhd_pub_t *)data; |
| bcm_workq_t *workq = &dhd->prot->rx_compl_cons; |
| |
| DHD_LB_STATS_RXC_PERCPU_CNT_INCR(dhd); |
| |
| dhd_msgbuf_rxbuf_post(dhd, TRUE); /* re-use pktids */ |
| bcm_workq_cons_sync(workq); |
| } |
| #endif /* DHD_LB_RXC */ |
| |
| #endif /* DHD_LB */ |
| |
| #define DHD_DBG_SHOW_METADATA 0 |
| |
| #if DHD_DBG_SHOW_METADATA |
| static void BCMFASTPATH |
| dhd_prot_print_metadata(dhd_pub_t *dhd, void *ptr, int len) |
| { |
| uint8 tlv_t; |
| uint8 tlv_l; |
| uint8 *tlv_v = (uint8 *)ptr; |
| |
| if (len <= BCMPCIE_D2H_METADATA_HDRLEN) |
| return; |
| |
| len -= BCMPCIE_D2H_METADATA_HDRLEN; |
| tlv_v += BCMPCIE_D2H_METADATA_HDRLEN; |
| |
| while (len > TLV_HDR_LEN) { |
| tlv_t = tlv_v[TLV_TAG_OFF]; |
| tlv_l = tlv_v[TLV_LEN_OFF]; |
| |
| len -= TLV_HDR_LEN; |
| tlv_v += TLV_HDR_LEN; |
| if (len < tlv_l) |
| break; |
| if ((tlv_t == 0) || (tlv_t == WLFC_CTL_TYPE_FILLER)) |
| break; |
| |
| switch (tlv_t) { |
| case WLFC_CTL_TYPE_TXSTATUS: { |
| uint32 txs; |
| memcpy(&txs, tlv_v, sizeof(uint32)); |
| if (tlv_l < (sizeof(wl_txstatus_additional_info_t) + sizeof(uint32))) { |
| printf("METADATA TX_STATUS: %08x\n", txs); |
| } else { |
| wl_txstatus_additional_info_t tx_add_info; |
| memcpy(&tx_add_info, tlv_v + sizeof(uint32), |
| sizeof(wl_txstatus_additional_info_t)); |
| printf("METADATA TX_STATUS: %08x WLFCTS[%04x | %08x - %08x - %08x]" |
| " rate = %08x tries = %d - %d\n", txs, |
| tx_add_info.seq, tx_add_info.entry_ts, |
| tx_add_info.enq_ts, tx_add_info.last_ts, |
| tx_add_info.rspec, tx_add_info.rts_cnt, |
| tx_add_info.tx_cnt); |
| } |
| } break; |
| |
| case WLFC_CTL_TYPE_RSSI: { |
| if (tlv_l == 1) |
| printf("METADATA RX_RSSI: rssi = %d\n", *tlv_v); |
| else |
| printf("METADATA RX_RSSI[%04x]: rssi = %d snr = %d\n", |
| (*(tlv_v + 3) << 8) | *(tlv_v + 2), |
| (int8)(*tlv_v), *(tlv_v + 1)); |
| } break; |
| |
| case WLFC_CTL_TYPE_FIFO_CREDITBACK: |
| bcm_print_bytes("METADATA FIFO_CREDITBACK", tlv_v, tlv_l); |
| break; |
| |
| case WLFC_CTL_TYPE_TX_ENTRY_STAMP: |
| bcm_print_bytes("METADATA TX_ENTRY", tlv_v, tlv_l); |
| break; |
| |
| case WLFC_CTL_TYPE_RX_STAMP: { |
| struct { |
| uint32 rspec; |
| uint32 bus_time; |
| uint32 wlan_time; |
| } rx_tmstamp; |
| memcpy(&rx_tmstamp, tlv_v, sizeof(rx_tmstamp)); |
| printf("METADATA RX TIMESTMAP: WLFCTS[%08x - %08x] rate = %08x\n", |
| rx_tmstamp.wlan_time, rx_tmstamp.bus_time, rx_tmstamp.rspec); |
| } break; |
| |
| case WLFC_CTL_TYPE_TRANS_ID: |
| bcm_print_bytes("METADATA TRANS_ID", tlv_v, tlv_l); |
| break; |
| |
| case WLFC_CTL_TYPE_COMP_TXSTATUS: |
| bcm_print_bytes("METADATA COMP_TXSTATUS", tlv_v, tlv_l); |
| break; |
| |
| default: |
| bcm_print_bytes("METADATA UNKNOWN", tlv_v, tlv_l); |
| break; |
| } |
| |
| len -= tlv_l; |
| tlv_v += tlv_l; |
| } |
| } |
| #endif /* DHD_DBG_SHOW_METADATA */ |
| |
| static INLINE void BCMFASTPATH |
| dhd_prot_packet_free(dhd_pub_t *dhd, void *pkt, uint8 pkttype, bool send) |
| { |
| if (pkt) { |
| if (pkttype == PKTTYPE_IOCTL_RX || |
| pkttype == PKTTYPE_EVENT_RX) { |
| #ifdef DHD_USE_STATIC_CTRLBUF |
| PKTFREE_STATIC(dhd->osh, pkt, send); |
| #else |
| PKTFREE(dhd->osh, pkt, send); |
| #endif /* DHD_USE_STATIC_CTRLBUF */ |
| } else { |
| PKTFREE(dhd->osh, pkt, send); |
| } |
| } |
| } |
| |
| static INLINE void * BCMFASTPATH |
| dhd_prot_packet_get(dhd_pub_t *dhd, uint32 pktid, uint8 pkttype, bool free_pktid) |
| { |
| void *PKTBUF; |
| dmaaddr_t pa; |
| uint32 len; |
| void *dmah; |
| void *secdma; |
| |
| #ifdef DHD_PCIE_PKTID |
| if (free_pktid) { |
| PKTBUF = DHD_PKTID_TO_NATIVE(dhd, dhd->prot->pktid_map_handle, |
| pktid, pa, len, dmah, secdma, pkttype); |
| } else { |
| PKTBUF = DHD_PKTID_TO_NATIVE_RSV(dhd, dhd->prot->pktid_map_handle, |
| pktid, pa, len, dmah, secdma, pkttype); |
| } |
| #else |
| PKTBUF = DHD_PKTID_TO_NATIVE(dhd, dhd->prot->pktid_map_handle, pktid, pa, |
| len, dmah, secdma, pkttype); |
| #endif /* DHD_PCIE_PKTID */ |
| |
| if (PKTBUF) { |
| { |
| if (SECURE_DMA_ENAB(dhd->osh)) { |
| SECURE_DMA_UNMAP(dhd->osh, pa, (uint) len, DMA_RX, 0, dmah, |
| secdma, 0); |
| } else { |
| DMA_UNMAP(dhd->osh, pa, (uint) len, DMA_RX, 0, dmah); |
| } |
| } |
| } |
| |
| return PKTBUF; |
| } |
| |
| #ifdef IOCTLRESP_USE_CONSTMEM |
| static INLINE void BCMFASTPATH |
| dhd_prot_ioctl_ret_buffer_get(dhd_pub_t *dhd, uint32 pktid, dhd_dma_buf_t *retbuf) |
| { |
| memset(retbuf, 0, sizeof(dhd_dma_buf_t)); |
| retbuf->va = DHD_PKTID_TO_NATIVE(dhd, dhd->prot->pktid_map_handle_ioctl, pktid, |
| retbuf->pa, retbuf->len, retbuf->dmah, retbuf->secdma, PKTTYPE_IOCTL_RX); |
| |
| return; |
| } |
| #endif /* IOCTLRESP_USE_CONSTMEM */ |
| |
| static void BCMFASTPATH |
| dhd_msgbuf_rxbuf_post(dhd_pub_t *dhd, bool use_rsv_pktid) |
| { |
| dhd_prot_t *prot = dhd->prot; |
| int16 fillbufs; |
| uint16 cnt = 256; |
| int retcount = 0; |
| |
| fillbufs = prot->max_rxbufpost - prot->rxbufpost; |
| while (fillbufs >= RX_BUF_BURST) { |
| cnt--; |
| if (cnt == 0) { |
| /* find a better way to reschedule rx buf post if space not available */ |
| DHD_ERROR(("h2d rx post ring not available to post host buffers \n")); |
| DHD_ERROR(("Current posted host buf count %d \n", prot->rxbufpost)); |
| break; |
| } |
| |
| /* Post in a burst of 32 buffers at a time */ |
| fillbufs = MIN(fillbufs, RX_BUF_BURST); |
| |
| /* Post buffers */ |
| retcount = dhd_prot_rxbuf_post(dhd, fillbufs, use_rsv_pktid); |
| |
| if (retcount >= 0) { |
| prot->rxbufpost += (uint16)retcount; |
| #ifdef DHD_LB_RXC |
| /* dhd_prot_rxbuf_post returns the number of buffers posted */ |
| DHD_LB_STATS_UPDATE_RXC_HISTO(dhd, retcount); |
| #endif /* DHD_LB_RXC */ |
| /* how many more to post */ |
| fillbufs = prot->max_rxbufpost - prot->rxbufpost; |
| } else { |
| /* Make sure we don't run loop any further */ |
| fillbufs = 0; |
| } |
| } |
| } |
| |
| /** Post 'count' no of rx buffers to dongle */ |
| static int BCMFASTPATH |
| dhd_prot_rxbuf_post(dhd_pub_t *dhd, uint16 count, bool use_rsv_pktid) |
| { |
| void *p; |
| uint16 pktsz = DHD_FLOWRING_RX_BUFPOST_PKTSZ; |
| uint8 *rxbuf_post_tmp; |
| host_rxbuf_post_t *rxbuf_post; |
| void *msg_start; |
| dmaaddr_t pa; |
| uint32 pktlen; |
| uint8 i = 0; |
| uint16 alloced = 0; |
| unsigned long flags; |
| uint32 pktid; |
| dhd_prot_t *prot = dhd->prot; |
| msgbuf_ring_t *ring = &prot->h2dring_rxp_subn; |
| |
| DHD_GENERAL_LOCK(dhd, flags); |
| |
| /* Claim space for exactly 'count' no of messages, for mitigation purpose */ |
| msg_start = (void *) |
| dhd_prot_alloc_ring_space(dhd, ring, count, &alloced, TRUE); |
| |
| DHD_GENERAL_UNLOCK(dhd, flags); |
| |
| if (msg_start == NULL) { |
| DHD_INFO(("%s:%d: Rxbufpost Msgbuf Not available\n", __FUNCTION__, __LINE__)); |
| return -1; |
| } |
| /* if msg_start != NULL, we should have alloced space for atleast 1 item */ |
| ASSERT(alloced > 0); |
| |
| rxbuf_post_tmp = (uint8*)msg_start; |
| |
| /* loop through each allocated message in the rxbuf post msgbuf_ring */ |
| for (i = 0; i < alloced; i++) { |
| rxbuf_post = (host_rxbuf_post_t *)rxbuf_post_tmp; |
| /* Create a rx buffer */ |
| if ((p = PKTGET(dhd->osh, pktsz, FALSE)) == NULL) { |
| DHD_ERROR(("%s:%d: PKTGET for rxbuf failed\n", __FUNCTION__, __LINE__)); |
| dhd->rx_pktgetfail++; |
| break; |
| } |
| |
| pktlen = PKTLEN(dhd->osh, p); |
| if (SECURE_DMA_ENAB(dhd->osh)) { |
| DHD_GENERAL_LOCK(dhd, flags); |
| pa = SECURE_DMA_MAP(dhd->osh, PKTDATA(dhd->osh, p), pktlen, |
| DMA_RX, p, 0, ring->dma_buf.secdma, 0); |
| DHD_GENERAL_UNLOCK(dhd, flags); |
| } else { |
| pa = DMA_MAP(dhd->osh, PKTDATA(dhd->osh, p), pktlen, DMA_RX, p, 0); |
| } |
| |
| if (PHYSADDRISZERO(pa)) { |
| PKTFREE(dhd->osh, p, FALSE); |
| DHD_ERROR(("Invalid phyaddr 0\n")); |
| ASSERT(0); |
| break; |
| } |
| |
| PKTPULL(dhd->osh, p, prot->rx_metadata_offset); |
| pktlen = PKTLEN(dhd->osh, p); |
| |
| /* Common msg header */ |
| rxbuf_post->cmn_hdr.msg_type = MSG_TYPE_RXBUF_POST; |
| rxbuf_post->cmn_hdr.if_id = 0; |
| rxbuf_post->cmn_hdr.epoch = ring->seqnum % H2D_EPOCH_MODULO; |
| ring->seqnum++; |
| |
| #if defined(DHD_LB_RXC) |
| if (use_rsv_pktid == TRUE) { |
| bcm_workq_t *workq = &prot->rx_compl_cons; |
| int elem_ix = bcm_ring_cons(WORKQ_RING(workq), DHD_LB_WORKQ_SZ); |
| if (elem_ix == BCM_RING_EMPTY) { |
| DHD_ERROR(("%s rx_compl_cons ring is empty\n", __FUNCTION__)); |
| pktid = DHD_PKTID_INVALID; |
| goto alloc_pkt_id; |
| } else { |
| uint32 *elem = WORKQ_ELEMENT(uint32, workq, elem_ix); |
| pktid = *elem; |
| } |
| |
| /* Now populate the previous locker with valid information */ |
| if (pktid != DHD_PKTID_INVALID) { |
| rxbuf_post->cmn_hdr.request_id = htol32(pktid); |
| DHD_NATIVE_TO_PKTID_SAVE(dhd, dhd->prot->pktid_map_handle, p, pktid, |
| pa, pktlen, DMA_RX, NULL, ring->dma_buf.secdma, |
| PKTTYPE_DATA_RX); |
| } |
| } else |
| #endif /* DHD_LB_RXC */ |
| { |
| #if defined(DHD_LB_RXC) |
| alloc_pkt_id: |
| #endif |
| #if defined(DHD_PCIE_PKTID) |
| /* get the lock before calling DHD_NATIVE_TO_PKTID */ |
| DHD_GENERAL_LOCK(dhd, flags); |
| #endif |
| pktid = DHD_NATIVE_TO_PKTID(dhd, dhd->prot->pktid_map_handle, p, pa, |
| pktlen, DMA_RX, NULL, ring->dma_buf.secdma, PKTTYPE_DATA_RX); |
| |
| #if defined(DHD_PCIE_PKTID) |
| /* free lock */ |
| DHD_GENERAL_UNLOCK(dhd, flags); |
| |
| if (pktid == DHD_PKTID_INVALID) { |
| |
| if (SECURE_DMA_ENAB(dhd->osh)) { |
| DHD_GENERAL_LOCK(dhd, flags); |
| SECURE_DMA_UNMAP(dhd->osh, pa, pktlen, DMA_RX, 0, DHD_DMAH_NULL, |
| ring->dma_buf.secdma, 0); |
| DHD_GENERAL_UNLOCK(dhd, flags); |
| } else { |
| DMA_UNMAP(dhd->osh, pa, pktlen, DMA_RX, 0, DHD_DMAH_NULL); |
| } |
| |
| PKTFREE(dhd->osh, p, FALSE); |
| DHD_ERROR(("Pktid pool depleted.\n")); |
| break; |
| } |
| #endif /* DHD_PCIE_PKTID */ |
| } |
| |
| rxbuf_post->data_buf_len = htol16((uint16)pktlen); |
| rxbuf_post->data_buf_addr.high_addr = htol32(PHYSADDRHI(pa)); |
| rxbuf_post->data_buf_addr.low_addr = |
| htol32(PHYSADDRLO(pa) + prot->rx_metadata_offset); |
| |
| if (prot->rx_metadata_offset) { |
| rxbuf_post->metadata_buf_len = prot->rx_metadata_offset; |
| rxbuf_post->metadata_buf_addr.high_addr = htol32(PHYSADDRHI(pa)); |
| rxbuf_post->metadata_buf_addr.low_addr = htol32(PHYSADDRLO(pa)); |
| } else { |
| rxbuf_post->metadata_buf_len = 0; |
| rxbuf_post->metadata_buf_addr.high_addr = 0; |
| rxbuf_post->metadata_buf_addr.low_addr = 0; |
| } |
| |
| #if defined(DHD_PKTID_AUDIT_RING) |
| DHD_PKTID_AUDIT(dhd, prot->pktid_map_handle, pktid, DHD_DUPLICATE_ALLOC); |
| #endif /* DHD_PKTID_AUDIT_RING */ |
| |
| rxbuf_post->cmn_hdr.request_id = htol32(pktid); |
| |
| /* Move rxbuf_post_tmp to next item */ |
| rxbuf_post_tmp = rxbuf_post_tmp + ring->item_len; |
| } |
| |
| if (i < alloced) { |
| if (ring->wr < (alloced - i)) { |
| ring->wr = ring->max_items - (alloced - i); |
| } else { |
| ring->wr -= (alloced - i); |
| } |
| |
| alloced = i; |
| } |
| |
| /* Update ring's WR index and ring doorbell to dongle */ |
| if (alloced > 0) { |
| dhd_prot_ring_write_complete(dhd, ring, msg_start, alloced); |
| } |
| |
| return alloced; |
| } /* dhd_prot_rxbuf_post */ |
| |
| #ifdef IOCTLRESP_USE_CONSTMEM |
| static int |
| alloc_ioctl_return_buffer(dhd_pub_t *dhd, dhd_dma_buf_t *retbuf) |
| { |
| int err; |
| memset(retbuf, 0, sizeof(dhd_dma_buf_t)); |
| |
| if ((err = dhd_dma_buf_alloc(dhd, retbuf, IOCT_RETBUF_SIZE)) != BCME_OK) { |
| DHD_ERROR(("%s: dhd_dma_buf_alloc err %d\n", __FUNCTION__, err)); |
| ASSERT(0); |
| return BCME_NOMEM; |
| } |
| |
| return BCME_OK; |
| } |
| |
| static void |
| free_ioctl_return_buffer(dhd_pub_t *dhd, dhd_dma_buf_t *retbuf) |
| { |
| /* retbuf (declared on stack) not fully populated ... */ |
| if (retbuf->va) { |
| uint32 dma_pad; |
| dma_pad = (IOCT_RETBUF_SIZE % DHD_DMA_PAD) ? DHD_DMA_PAD : 0; |
| retbuf->len = IOCT_RETBUF_SIZE; |
| retbuf->_alloced = retbuf->len + dma_pad; |
| /* JIRA:SWWLAN-70021 The pa value would be overwritten by the dongle. |
| * Need to reassign before free to pass the check in dhd_dma_buf_audit(). |
| */ |
| retbuf->pa = DMA_MAP(dhd->osh, retbuf->va, retbuf->len, DMA_RX, NULL, NULL); |
| } |
| |
| dhd_dma_buf_free(dhd, retbuf); |
| return; |
| } |
| #endif /* IOCTLRESP_USE_CONSTMEM */ |
| |
| static int |
| dhd_prot_rxbufpost_ctrl(dhd_pub_t *dhd, bool event_buf) |
| { |
| void *p; |
| uint16 pktsz; |
| ioctl_resp_evt_buf_post_msg_t *rxbuf_post; |
| dmaaddr_t pa; |
| uint32 pktlen; |
| dhd_prot_t *prot = dhd->prot; |
| uint16 alloced = 0; |
| unsigned long flags; |
| dhd_dma_buf_t retbuf; |
| void *dmah = NULL; |
| uint32 pktid; |
| void *map_handle; |
| msgbuf_ring_t *ring = &prot->h2dring_ctrl_subn; |
| |
| if (dhd->busstate == DHD_BUS_DOWN) { |
| DHD_ERROR(("%s: bus is already down.\n", __FUNCTION__)); |
| return -1; |
| } |
| |
| memset(&retbuf, 0, sizeof(dhd_dma_buf_t)); |
| |
| if (event_buf) { |
| /* Allocate packet for event buffer post */ |
| pktsz = DHD_FLOWRING_RX_BUFPOST_PKTSZ; |
| } else { |
| /* Allocate packet for ctrl/ioctl buffer post */ |
| pktsz = DHD_FLOWRING_IOCTL_BUFPOST_PKTSZ; |
| } |
| |
| #ifdef IOCTLRESP_USE_CONSTMEM |
| if (!event_buf) { |
| if (alloc_ioctl_return_buffer(dhd, &retbuf) != BCME_OK) { |
| DHD_ERROR(("Could not allocate IOCTL response buffer\n")); |
| return -1; |
| } |
| ASSERT(retbuf.len == IOCT_RETBUF_SIZE); |
| p = retbuf.va; |
| pktlen = retbuf.len; |
| pa = retbuf.pa; |
| dmah = retbuf.dmah; |
| } else |
| #endif /* IOCTLRESP_USE_CONSTMEM */ |
| { |
| #ifdef DHD_USE_STATIC_CTRLBUF |
| p = PKTGET_STATIC(dhd->osh, pktsz, FALSE); |
| #else |
| p = PKTGET(dhd->osh, pktsz, FALSE); |
| #endif /* DHD_USE_STATIC_CTRLBUF */ |
| if (p == NULL) { |
| DHD_ERROR(("%s:%d: PKTGET for %s buf failed\n", |
| __FUNCTION__, __LINE__, event_buf ? |
| "EVENT" : "IOCTL RESP")); |
| dhd->rx_pktgetfail++; |
| return -1; |
| } |
| |
| pktlen = PKTLEN(dhd->osh, p); |
| |
| if (SECURE_DMA_ENAB(dhd->osh)) { |
| DHD_GENERAL_LOCK(dhd, flags); |
| pa = SECURE_DMA_MAP(dhd->osh, PKTDATA(dhd->osh, p), pktlen, |
| DMA_RX, p, 0, ring->dma_buf.secdma, 0); |
| DHD_GENERAL_UNLOCK(dhd, flags); |
| } else { |
| pa = DMA_MAP(dhd->osh, PKTDATA(dhd->osh, p), pktlen, DMA_RX, p, 0); |
| } |
| |
| if (PHYSADDRISZERO(pa)) { |
| DHD_ERROR(("Invalid physaddr 0\n")); |
| ASSERT(0); |
| goto free_pkt_return; |
| } |
| } |
| |
| DHD_GENERAL_LOCK(dhd, flags); |
| |
| rxbuf_post = (ioctl_resp_evt_buf_post_msg_t *) |
| dhd_prot_alloc_ring_space(dhd, ring, 1, &alloced, FALSE); |
| |
| if (rxbuf_post == NULL) { |
| DHD_GENERAL_UNLOCK(dhd, flags); |
| DHD_ERROR(("%s:%d: Ctrl submit Msgbuf Not available to post buffer \n", |
| __FUNCTION__, __LINE__)); |
| |
| #ifdef IOCTLRESP_USE_CONSTMEM |
| if (event_buf) |
| #endif /* IOCTLRESP_USE_CONSTMEM */ |
| { |
| if (SECURE_DMA_ENAB(dhd->osh)) { |
| DHD_GENERAL_LOCK(dhd, flags); |
| SECURE_DMA_UNMAP(dhd->osh, pa, pktlen, DMA_RX, 0, DHD_DMAH_NULL, |
| ring->dma_buf.secdma, 0); |
| DHD_GENERAL_UNLOCK(dhd, flags); |
| } else { |
| DMA_UNMAP(dhd->osh, pa, pktlen, DMA_RX, 0, DHD_DMAH_NULL); |
| } |
| } |
| goto free_pkt_return; |
| } |
| |
| /* CMN msg header */ |
| if (event_buf) { |
| rxbuf_post->cmn_hdr.msg_type = MSG_TYPE_EVENT_BUF_POST; |
| } else { |
| rxbuf_post->cmn_hdr.msg_type = MSG_TYPE_IOCTLRESP_BUF_POST; |
| } |
| |
| #ifdef IOCTLRESP_USE_CONSTMEM |
| if (!event_buf) { |
| map_handle = dhd->prot->pktid_map_handle_ioctl; |
| pktid = DHD_NATIVE_TO_PKTID(dhd, map_handle, p, pa, pktlen, |
| DMA_RX, dmah, ring->dma_buf.secdma, PKTTYPE_IOCTL_RX); |
| } else |
| #endif /* IOCTLRESP_USE_CONSTMEM */ |
| { |
| map_handle = dhd->prot->pktid_map_handle; |
| pktid = DHD_NATIVE_TO_PKTID(dhd, map_handle, |
| p, pa, pktlen, DMA_RX, dmah, ring->dma_buf.secdma, |
| event_buf ? PKTTYPE_EVENT_RX : PKTTYPE_IOCTL_RX); |
| } |
| |
| if (pktid == DHD_PKTID_INVALID) { |
| if (ring->wr == 0) { |
| ring->wr = ring->max_items - 1; |
| } else { |
| ring->wr--; |
| } |
| DHD_GENERAL_UNLOCK(dhd, flags); |
| DMA_UNMAP(dhd->osh, pa, pktlen, DMA_RX, 0, DHD_DMAH_NULL); |
| goto free_pkt_return; |
| } |
| |
| #if defined(DHD_PKTID_AUDIT_RING) |
| DHD_PKTID_AUDIT(dhd, map_handle, pktid, DHD_DUPLICATE_ALLOC); |
| #endif /* DHD_PKTID_AUDIT_RING */ |
| |
| rxbuf_post->cmn_hdr.request_id = htol32(pktid); |
| rxbuf_post->cmn_hdr.if_id = 0; |
| rxbuf_post->cmn_hdr.epoch = ring->seqnum % H2D_EPOCH_MODULO; |
| ring->seqnum++; |
| |
| #if defined(DHD_PCIE_PKTID) |
| if (rxbuf_post->cmn_hdr.request_id == DHD_PKTID_INVALID) { |
| if (ring->wr == 0) { |
| ring->wr = ring->max_items - 1; |
| } else { |
| ring->wr--; |
| } |
| DHD_GENERAL_UNLOCK(dhd, flags); |
| #ifdef IOCTLRESP_USE_CONSTMEM |
| if (event_buf) |
| #endif /* IOCTLRESP_USE_CONSTMEM */ |
| { |
| if (SECURE_DMA_ENAB(dhd->osh)) { |
| DHD_GENERAL_LOCK(dhd, flags); |
| SECURE_DMA_UNMAP(dhd->osh, pa, pktlen, DMA_RX, 0, DHD_DMAH_NULL, |
| ring->dma_buf.secdma, 0); |
| DHD_GENERAL_UNLOCK(dhd, flags); |
| } else { |
| DMA_UNMAP(dhd->osh, pa, pktlen, DMA_RX, 0, DHD_DMAH_NULL); |
| } |
| } |
| goto free_pkt_return; |
| } |
| #endif /* DHD_PCIE_PKTID */ |
| |
| rxbuf_post->cmn_hdr.flags = 0; |
| #ifndef IOCTLRESP_USE_CONSTMEM |
| rxbuf_post->host_buf_len = htol16((uint16)PKTLEN(dhd->osh, p)); |
| #else |
| rxbuf_post->host_buf_len = htol16((uint16)pktlen); |
| #endif /* IOCTLRESP_USE_CONSTMEM */ |
| rxbuf_post->host_buf_addr.high_addr = htol32(PHYSADDRHI(pa)); |
| rxbuf_post->host_buf_addr.low_addr = htol32(PHYSADDRLO(pa)); |
| |
| /* update ring's WR index and ring doorbell to dongle */ |
| dhd_prot_ring_write_complete(dhd, ring, rxbuf_post, 1); |
| DHD_GENERAL_UNLOCK(dhd, flags); |
| |
| return 1; |
| |
| free_pkt_return: |
| #ifdef IOCTLRESP_USE_CONSTMEM |
| if (!event_buf) { |
| free_ioctl_return_buffer(dhd, &retbuf); |
| } else |
| #endif /* IOCTLRESP_USE_CONSTMEM */ |
| { |
| dhd_prot_packet_free(dhd, p, |
| event_buf ? PKTTYPE_EVENT_RX : PKTTYPE_IOCTL_RX, |
| FALSE); |
| } |
| |
| return -1; |
| } /* dhd_prot_rxbufpost_ctrl */ |
| |
| static uint16 |
| dhd_msgbuf_rxbuf_post_ctrlpath(dhd_pub_t *dhd, bool event_buf, uint32 max_to_post) |
| { |
| uint32 i = 0; |
| int32 ret_val; |
| |
| DHD_INFO(("max to post %d, event %d \n", max_to_post, event_buf)); |
| |
| if (dhd->busstate == DHD_BUS_DOWN) { |
| DHD_ERROR(("%s: bus is already down.\n", __FUNCTION__)); |
| return 0; |
| } |
| |
| while (i < max_to_post) { |
| ret_val = dhd_prot_rxbufpost_ctrl(dhd, event_buf); |
| if (ret_val < 0) { |
| break; |
| } |
| i++; |
| } |
| DHD_INFO(("posted %d buffers to event_pool/ioctl_resp_pool %d\n", i, event_buf)); |
| return (uint16)i; |
| } |
| |
| static void |
| dhd_msgbuf_rxbuf_post_ioctlresp_bufs(dhd_pub_t *dhd) |
| { |
| dhd_prot_t *prot = dhd->prot; |
| int max_to_post; |
| |
| DHD_INFO(("ioctl resp buf post\n")); |
| max_to_post = prot->max_ioctlrespbufpost - prot->cur_ioctlresp_bufs_posted; |
| if (max_to_post <= 0) { |
| DHD_INFO(("%s: Cannot post more than max IOCTL resp buffers\n", |
| __FUNCTION__)); |
| return; |
| } |
| prot->cur_ioctlresp_bufs_posted += dhd_msgbuf_rxbuf_post_ctrlpath(dhd, |
| FALSE, max_to_post); |
| } |
| |
| static void |
| dhd_msgbuf_rxbuf_post_event_bufs(dhd_pub_t *dhd) |
| { |
| dhd_prot_t *prot = dhd->prot; |
| int max_to_post; |
| |
| max_to_post = prot->max_eventbufpost - prot->cur_event_bufs_posted; |
| if (max_to_post <= 0) { |
| DHD_INFO(("%s: Cannot post more than max event buffers\n", |
| __FUNCTION__)); |
| return; |
| } |
| prot->cur_event_bufs_posted += dhd_msgbuf_rxbuf_post_ctrlpath(dhd, |
| TRUE, max_to_post); |
| } |
| |
| /** called when DHD needs to check for 'receive complete' messages from the dongle */ |
| bool BCMFASTPATH |
| dhd_prot_process_msgbuf_rxcpl(dhd_pub_t *dhd, uint bound) |
| { |
| bool more = TRUE; |
| uint n = 0; |
| msgbuf_ring_t *ring = &dhd->prot->d2hring_rx_cpln; |
| |
| /* Process all the messages - DTOH direction */ |
| while (!dhd_is_device_removed(dhd)) { |
| uint8 *msg_addr; |
| uint32 msg_len; |
| |
| if (dhd->hang_was_sent) { |
| more = FALSE; |
| break; |
| } |
| |
| /* Get the address of the next message to be read from ring */ |
| msg_addr = dhd_prot_get_read_addr(dhd, ring, &msg_len); |
| if (msg_addr == NULL) { |
| more = FALSE; |
| break; |
| } |
| |
| /* Prefetch data to populate the cache */ |
| OSL_PREFETCH(msg_addr); |
| |
| if (dhd_prot_process_msgtype(dhd, ring, msg_addr, msg_len) != BCME_OK) { |
| DHD_ERROR(("%s: process %s msg addr %p len %d\n", |
| __FUNCTION__, ring->name, msg_addr, msg_len)); |
| } |
| |
| /* Update read pointer */ |
| dhd_prot_upd_read_idx(dhd, ring); |
| |
| /* After batch processing, check RX bound */ |
| n += msg_len / ring->item_len; |
| if (n >= bound) { |
| break; |
| } |
| } |
| |
| return more; |
| } |
| |
| /** |
| * Hands transmit packets (with a caller provided flow_id) over to dongle territory (the flow ring) |
| */ |
| void |
| dhd_prot_update_txflowring(dhd_pub_t *dhd, uint16 flowid, void *msgring) |
| { |
| msgbuf_ring_t *ring = (msgbuf_ring_t *)msgring; |
| |
| /* Update read pointer */ |
| if (DMA_INDX_ENAB(dhd->dma_d2h_ring_upd_support)) { |
| ring->rd = dhd_prot_dma_indx_get(dhd, H2D_DMA_INDX_RD_UPD, ring->idx); |
| } |
| |
| DHD_TRACE(("ringid %d flowid %d write %d read %d \n\n", |
| ring->idx, flowid, ring->wr, ring->rd)); |
| |
| /* Need more logic here, but for now use it directly */ |
| dhd_bus_schedule_queue(dhd->bus, flowid, TRUE); /* from queue to flowring */ |
| } |
| |
| /** called when DHD needs to check for 'transmit complete' messages from the dongle */ |
| bool BCMFASTPATH |
| dhd_prot_process_msgbuf_txcpl(dhd_pub_t *dhd, uint bound) |
| { |
| bool more = TRUE; |
| uint n = 0; |
| msgbuf_ring_t *ring = &dhd->prot->d2hring_tx_cpln; |
| |
| /* Process all the messages - DTOH direction */ |
| while (!dhd_is_device_removed(dhd)) { |
| uint8 *msg_addr; |
| uint32 msg_len; |
| |
| if (dhd->hang_was_sent) { |
| more = FALSE; |
| break; |
| } |
| |
| /* Get the address of the next message to be read from ring */ |
| msg_addr = dhd_prot_get_read_addr(dhd, ring, &msg_len); |
| if (msg_addr == NULL) { |
| more = FALSE; |
| break; |
| } |
| |
| /* Prefetch data to populate the cache */ |
| OSL_PREFETCH(msg_addr); |
| |
| if (dhd_prot_process_msgtype(dhd, ring, msg_addr, msg_len) != BCME_OK) { |
| DHD_ERROR(("%s: process %s msg addr %p len %d\n", |
| __FUNCTION__, ring->name, msg_addr, msg_len)); |
| } |
| |
| /* Write to dngl rd ptr */ |
| dhd_prot_upd_read_idx(dhd, ring); |
| |
| /* After batch processing, check bound */ |
| n += msg_len / ring->item_len; |
| if (n >= bound) { |
| break; |
| } |
| } |
| |
| return more; |
| } |
| |
| /** called when DHD needs to check for 'ioctl complete' messages from the dongle */ |
| int BCMFASTPATH |
| dhd_prot_process_ctrlbuf(dhd_pub_t *dhd) |
| { |
| dhd_prot_t *prot = dhd->prot; |
| msgbuf_ring_t *ring = &prot->d2hring_ctrl_cpln; |
| |
| /* Process all the messages - DTOH direction */ |
| while (!dhd_is_device_removed(dhd)) { |
| uint8 *msg_addr; |
| uint32 msg_len; |
| |
| if (dhd->hang_was_sent) { |
| break; |
| } |
| |
| /* Get the address of the next message to be read from ring */ |
| msg_addr = dhd_prot_get_read_addr(dhd, ring, &msg_len); |
| if (msg_addr == NULL) { |
| break; |
| } |
| |
| /* Prefetch data to populate the cache */ |
| OSL_PREFETCH(msg_addr); |
| |
| if (dhd_prot_process_msgtype(dhd, ring, msg_addr, msg_len) != BCME_OK) { |
| DHD_ERROR(("%s: process %s msg addr %p len %d\n", |
| __FUNCTION__, ring->name, msg_addr, msg_len)); |
| } |
| |
| /* Write to dngl rd ptr */ |
| dhd_prot_upd_read_idx(dhd, ring); |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * Consume messages out of the D2H ring. Ensure that the message's DMA to host |
| * memory has completed, before invoking the message handler via a table lookup |
| * of the cmn_msg_hdr::msg_type. |
| */ |
| static int BCMFASTPATH |
| dhd_prot_process_msgtype(dhd_pub_t *dhd, msgbuf_ring_t *ring, uint8 *buf, uint32 len) |
| { |
| int buf_len = len; |
| uint16 item_len; |
| uint8 msg_type; |
| cmn_msg_hdr_t *msg = NULL; |
| int ret = BCME_OK; |
| |
| ASSERT(ring); |
| item_len = ring->item_len; |
| if (item_len == 0) { |
| DHD_ERROR(("%s: ringidx %d item_len %d buf_len %d\n", |
| __FUNCTION__, ring->idx, item_len, buf_len)); |
| return BCME_ERROR; |
| } |
| |
| while (buf_len > 0) { |
| if (dhd->hang_was_sent) { |
| ret = BCME_ERROR; |
| goto done; |
| } |
| |
| msg = (cmn_msg_hdr_t *)buf; |
| |
| /* |
| * Update the curr_rd to the current index in the ring, from where |
| * the work item is fetched. This way if the fetched work item |
| * fails in LIVELOCK, we can print the exact read index in the ring |
| * that shows up the corrupted work item. |
| */ |
| if ((ring->curr_rd + 1) >= ring->max_items) { |
| ring->curr_rd = 0; |
| } else { |
| ring->curr_rd += 1; |
| } |
| |
| #if defined(PCIE_D2H_SYNC) |
| /* Wait until DMA completes, then fetch msg_type */ |
| msg_type = dhd->prot->d2h_sync_cb(dhd, ring, msg, item_len); |
| #else |
| msg_type = msg->msg_type; |
| #endif /* !PCIE_D2H_SYNC */ |
| |
| /* Prefetch data to populate the cache */ |
| OSL_PREFETCH(buf + item_len); |
| |
| DHD_INFO(("msg_type %d item_len %d buf_len %d\n", |
| msg_type, item_len, buf_len)); |
| |
| if (msg_type == MSG_TYPE_LOOPBACK) { |
| bcm_print_bytes("LPBK RESP: ", (uint8 *)msg, item_len); |
| DHD_ERROR((" MSG_TYPE_LOOPBACK, len %d\n", item_len)); |
| } |
| |
| ASSERT(msg_type < DHD_PROT_FUNCS); |
| if (msg_type >= DHD_PROT_FUNCS) { |
| DHD_ERROR(("%s: msg_type %d item_len %d buf_len %d\n", |
| __FUNCTION__, msg_type, item_len, buf_len)); |
| ret = BCME_ERROR; |
| goto done; |
| } |
| |
| if (table_lookup[msg_type]) { |
| table_lookup[msg_type](dhd, buf); |
| } |
| |
| if (buf_len < item_len) { |
| ret = BCME_ERROR; |
| goto done; |
| } |
| buf_len = buf_len - item_len; |
| buf = buf + item_len; |
| } |
| |
| done: |
| |
| #ifdef DHD_RX_CHAINING |
| dhd_rxchain_commit(dhd); |
| #endif |
| #if defined(DHD_LB) |
| dhd_lb_dispatch(dhd, ring->idx); |
| #endif |
| return ret; |
| } /* dhd_prot_process_msgtype */ |
| |
| static void |
| dhd_prot_noop(dhd_pub_t *dhd, void *msg) |
| { |
| return; |
| } |
| |
| /** called on MSG_TYPE_RING_STATUS message received from dongle */ |
| static void |
| dhd_prot_ringstatus_process(dhd_pub_t *dhd, void *msg) |
| { |
| pcie_ring_status_t *ring_status = (pcie_ring_status_t *)msg; |
| DHD_ERROR(("ring status: request_id %d, status 0x%04x, flow ring %d, write_idx %d \n", |
| ring_status->cmn_hdr.request_id, ring_status->compl_hdr.status, |
| ring_status->compl_hdr.flow_ring_id, ring_status->write_idx)); |
| /* How do we track this to pair it with ??? */ |
| return; |
| } |
| |
| /** called on MSG_TYPE_GEN_STATUS ('general status') message received from dongle */ |
| static void |
| dhd_prot_genstatus_process(dhd_pub_t *dhd, void *msg) |
| { |
| pcie_gen_status_t *gen_status = (pcie_gen_status_t *)msg; |
| DHD_ERROR(("ERROR: gen status: request_id %d, STATUS 0x%04x, flow ring %d \n", |
| gen_status->cmn_hdr.request_id, gen_status->compl_hdr.status, |
| gen_status->compl_hdr.flow_ring_id)); |
| |
| /* How do we track this to pair it with ??? */ |
| return; |
| } |
| |
| /** |
| * Called on MSG_TYPE_IOCTLPTR_REQ_ACK ('ioctl ack') message received from dongle, meaning that the |
| * dongle received the ioctl message in dongle memory. |
| */ |
| static void |
| dhd_prot_ioctack_process(dhd_pub_t *dhd, void *msg) |
| { |
| uint32 pktid; |
| ioctl_req_ack_msg_t *ioct_ack = (ioctl_req_ack_msg_t *)msg; |
| unsigned long flags; |
| |
| pktid = ltoh32(ioct_ack->cmn_hdr.request_id); |
| |
| #if defined(DHD_PKTID_AUDIT_RING) |
| /* Skip DHD_IOCTL_REQ_PKTID = 0xFFFE */ |
| if (pktid != DHD_IOCTL_REQ_PKTID) { |
| if (DHD_PKTID_AUDIT(dhd, dhd->prot->pktid_map_handle, pktid, |
| DHD_TEST_IS_ALLOC) == BCME_ERROR) { |
| prhex("dhd_prot_ioctack_process:", |
| (uchar *)msg, D2HRING_CTRL_CMPLT_ITEMSIZE); |
| } |
| } |
| #endif /* DHD_PKTID_AUDIT_RING */ |
| |
| DHD_GENERAL_LOCK(dhd, flags); |
| if ((dhd->prot->ioctl_state & MSGBUF_IOCTL_ACK_PENDING) && |
| (dhd->prot->ioctl_state & MSGBUF_IOCTL_RESP_PENDING)) { |
| dhd->prot->ioctl_state &= ~MSGBUF_IOCTL_ACK_PENDING; |
| } else { |
| DHD_ERROR(("%s: received ioctl ACK with state %02x trans_id = %d\n", |
| __FUNCTION__, dhd->prot->ioctl_state, dhd->prot->ioctl_trans_id)); |
| prhex("dhd_prot_ioctack_process:", |
| (uchar *)msg, D2HRING_CTRL_CMPLT_ITEMSIZE); |
| } |
| DHD_GENERAL_UNLOCK(dhd, flags); |
| |
| DHD_CTL(("ioctl req ack: request_id %d, status 0x%04x, flow ring %d \n", |
| ioct_ack->cmn_hdr.request_id, ioct_ack->compl_hdr.status, |
| ioct_ack->compl_hdr.flow_ring_id)); |
| if (ioct_ack->compl_hdr.status != 0) { |
| DHD_ERROR(("got an error status for the ioctl request...need to handle that\n")); |
| } |
| } |
| |
| /** called on MSG_TYPE_IOCTL_CMPLT message received from dongle */ |
| static void |
| dhd_prot_ioctcmplt_process(dhd_pub_t *dhd, void *msg) |
| { |
| dhd_prot_t *prot = dhd->prot; |
| uint32 pkt_id, xt_id; |
| ioctl_comp_resp_msg_t *ioct_resp = (ioctl_comp_resp_msg_t *)msg; |
| void *pkt; |
| unsigned long flags; |
| dhd_dma_buf_t retbuf; |
| |
| memset(&retbuf, 0, sizeof(dhd_dma_buf_t)); |
| |
| pkt_id = ltoh32(ioct_resp->cmn_hdr.request_id); |
| |
| #if defined(DHD_PKTID_AUDIT_RING) |
| { |
| int ret; |
| #ifndef IOCTLRESP_USE_CONSTMEM |
| ret = DHD_PKTID_AUDIT(dhd, prot->pktid_map_handle, pkt_id, |
| DHD_DUPLICATE_FREE); |
| #else |
| ret = DHD_PKTID_AUDIT(dhd, prot->pktid_map_handle_ioctl, pkt_id, |
| DHD_DUPLICATE_FREE); |
| #endif /* !IOCTLRESP_USE_CONSTMEM */ |
| if (ret == BCME_ERROR) { |
| prhex("dhd_prot_ioctcmplt_process:", |
| (uchar *)msg, D2HRING_CTRL_CMPLT_ITEMSIZE); |
| } |
| } |
| #endif /* DHD_PKTID_AUDIT_RING */ |
| |
| DHD_GENERAL_LOCK(dhd, flags); |
| if ((prot->ioctl_state & MSGBUF_IOCTL_ACK_PENDING) || |
| !(prot->ioctl_state & MSGBUF_IOCTL_RESP_PENDING)) { |
| DHD_ERROR(("%s: received ioctl response with state %02x trans_id = %d\n", |
| __FUNCTION__, dhd->prot->ioctl_state, dhd->prot->ioctl_trans_id)); |
| prhex("dhd_prot_ioctcmplt_process:", |
| (uchar *)msg, D2HRING_CTRL_CMPLT_ITEMSIZE); |
| DHD_GENERAL_UNLOCK(dhd, flags); |
| return; |
| } |
| #ifndef IOCTLRESP_USE_CONSTMEM |
| pkt = dhd_prot_packet_get(dhd, pkt_id, PKTTYPE_IOCTL_RX, TRUE); |
| #else |
| dhd_prot_ioctl_ret_buffer_get(dhd, pkt_id, &retbuf); |
| pkt = retbuf.va; |
| #endif /* !IOCTLRESP_USE_CONSTMEM */ |
| if (!pkt) { |
| prot->ioctl_state = 0; |
| DHD_GENERAL_UNLOCK(dhd, flags); |
| DHD_ERROR(("%s: received ioctl response with NULL pkt\n", __FUNCTION__)); |
| return; |
| } |
| DHD_GENERAL_UNLOCK(dhd, flags); |
| |
| prot->ioctl_resplen = ltoh16(ioct_resp->resp_len); |
| prot->ioctl_status = ltoh16(ioct_resp->compl_hdr.status); |
| xt_id = ltoh16(ioct_resp->trans_id); |
| if (xt_id != prot->ioctl_trans_id) { |
| ASSERT(0); |
| goto exit; |
| } |
| |
| DHD_CTL(("IOCTL_COMPLETE: req_id %x transid %d status %x resplen %d\n", |
| pkt_id, xt_id, prot->ioctl_status, prot->ioctl_resplen)); |
| |
| if (prot->ioctl_resplen > 0) { |
| #ifndef IOCTLRESP_USE_CONSTMEM |
| bcopy(PKTDATA(dhd->osh, pkt), prot->retbuf.va, prot->ioctl_resplen); |
| #else |
| bcopy(pkt, prot->retbuf.va, prot->ioctl_resplen); |
| #endif /* !IOCTLRESP_USE_CONSTMEM */ |
| } |
| |
| /* wake up any dhd_os_ioctl_resp_wait() */ |
| dhd_wakeup_ioctl_event(dhd, IOCTL_RETURN_ON_SUCCESS); |
| |
| exit: |
| #ifndef IOCTLRESP_USE_CONSTMEM |
| dhd_prot_packet_free(dhd, pkt, |
| PKTTYPE_IOCTL_RX, FALSE); |
| #else |
| free_ioctl_return_buffer(dhd, &retbuf); |
| #endif /* !IOCTLRESP_USE_CONSTMEM */ |
| } |
| |
| /** called on MSG_TYPE_TX_STATUS message received from dongle */ |
| static void BCMFASTPATH |
| dhd_prot_txstatus_process(dhd_pub_t *dhd, void *msg) |
| { |
| dhd_prot_t *prot = dhd->prot; |
| host_txbuf_cmpl_t * txstatus; |
| unsigned long flags; |
| uint32 pktid; |
| void *pkt = NULL; |
| dmaaddr_t pa; |
| uint32 len; |
| void *dmah; |
| void *secdma; |
| |
| /* locks required to protect circular buffer accesses */ |
| DHD_GENERAL_LOCK(dhd, flags); |
| |
| txstatus = (host_txbuf_cmpl_t *)msg; |
| pktid = ltoh32(txstatus->cmn_hdr.request_id); |
| |
| #if defined(DHD_PKTID_AUDIT_RING) |
| if (DHD_PKTID_AUDIT(dhd, dhd->prot->pktid_map_handle, pktid, |
| DHD_DUPLICATE_FREE) == BCME_ERROR) { |
| prhex("dhd_prot_txstatus_process:", |
| (uchar *)msg, D2HRING_TXCMPLT_ITEMSIZE); |
| } |
| #endif /* DHD_PKTID_AUDIT_RING */ |
| |
| DHD_INFO(("txstatus for pktid 0x%04x\n", pktid)); |
| if (prot->active_tx_count) { |
| prot->active_tx_count--; |
| |
| /* Release the Lock when no more tx packets are pending */ |
| if (prot->active_tx_count == 0) |
| DHD_TXFL_WAKE_UNLOCK(dhd); |
| |
| } else { |
| DHD_ERROR(("Extra packets are freed\n")); |
| } |
| |
| ASSERT(pktid != 0); |
| |
| #if defined(DHD_LB_TXC) && !defined(BCM_SECURE_DMA) |
| { |
| int elem_ix; |
| void **elem; |
| bcm_workq_t *workq; |
| |
| pkt = DHD_PKTID_TO_NATIVE(dhd, dhd->prot->pktid_map_handle, |
| pktid, pa, len, dmah, secdma, PKTTYPE_DATA_TX); |
| |
| workq = &prot->tx_compl_prod; |
| /* |
| * Produce the packet into the tx_compl workq for the tx compl tasklet |
| * to consume. |
| */ |
| OSL_PREFETCH(PKTTAG(pkt)); |
| |
| /* fetch next available slot in workq */ |
| elem_ix = bcm_ring_prod(WORKQ_RING(workq), DHD_LB_WORKQ_SZ); |
| |
| DHD_PKTTAG_SET_PA((dhd_pkttag_fr_t *)PKTTAG(pkt), pa); |
| DHD_PKTTAG_SET_PA_LEN((dhd_pkttag_fr_t *)PKTTAG(pkt), len); |
| |
| if (elem_ix == BCM_RING_FULL) { |
| DHD_ERROR(("tx_compl_prod BCM_RING_FULL\n")); |
| goto workq_ring_full; |
| } |
| |
| elem = WORKQ_ELEMENT(void *, &prot->tx_compl_prod, elem_ix); |
| *elem = pkt; |
| |
| smp_wmb(); |
| |
| /* Sync WR index to consumer if the SYNC threshold has been reached */ |
| if (++prot->tx_compl_prod_sync >= DHD_LB_WORKQ_SYNC) { |
| bcm_workq_prod_sync(workq); |
| prot->tx_compl_prod_sync = 0; |
| } |
| |
| DHD_INFO(("%s: tx_compl_prod pkt<%p> sync<%d>\n", |
| __FUNCTION__, pkt, prot->tx_compl_prod_sync)); |
| |
| DHD_GENERAL_UNLOCK(dhd, flags); |
| return; |
| } |
| |
| workq_ring_full: |
| |
| #endif /* !DHD_LB_TXC */ |
| |
| /* |
| * We can come here if no DHD_LB_TXC is enabled and in case where DHD_LB_TXC is |
| * defined but the tx_compl queue is full. |
| */ |
| if (pkt == NULL) { |
| pkt = DHD_PKTID_TO_NATIVE(dhd, dhd->prot->pktid_map_handle, |
| pktid, pa, len, dmah, secdma, PKTTYPE_DATA_TX); |
| } |
| |
| if (pkt) { |
| if (SECURE_DMA_ENAB(dhd->osh)) { |
| int offset = 0; |
| BCM_REFERENCE(offset); |
| |
| if (dhd->prot->tx_metadata_offset) |
| offset = dhd->prot->tx_metadata_offset + ETHER_HDR_LEN; |
| SECURE_DMA_UNMAP(dhd->osh, (uint) pa, |
| (uint) dhd->prot->tx_metadata_offset, DMA_RX, 0, dmah, |
| secdma, offset); |
| } else { |
| DMA_UNMAP(dhd->osh, pa, (uint) len, DMA_RX, 0, dmah); |
| } |
| #if defined(BCMPCIE) |
| dhd_txcomplete(dhd, pkt, true); |
| #endif |
| |
| #if DHD_DBG_SHOW_METADATA |
| if (dhd->prot->metadata_dbg && |
| dhd->prot->tx_metadata_offset && txstatus->metadata_len) { |
| uchar *ptr; |
| /* The Ethernet header of TX frame was copied and removed. |
| * Here, move the data pointer forward by Ethernet header size. |
| */ |
| PKTPULL(dhd->osh, pkt, ETHER_HDR_LEN); |
| ptr = PKTDATA(dhd->osh, pkt) - (dhd->prot->tx_metadata_offset); |
| bcm_print_bytes("txmetadata", ptr, txstatus->metadata_len); |
| dhd_prot_print_metadata(dhd, ptr, txstatus->metadata_len); |
| } |
| #endif /* DHD_DBG_SHOW_METADATA */ |
| PKTFREE(dhd->osh, pkt, TRUE); |
| DHD_FLOWRING_TXSTATUS_CNT_UPDATE(dhd->bus, txstatus->compl_hdr.flow_ring_id, |
| txstatus->tx_status); |
| } |
| |
| DHD_GENERAL_UNLOCK(dhd, flags); |
| |
| return; |
| } /* dhd_prot_txstatus_process */ |
| |
| /** called on MSG_TYPE_WL_EVENT message received from dongle */ |
| static void |
| dhd_prot_event_process(dhd_pub_t *dhd, void *msg) |
| { |
| wlevent_req_msg_t *evnt; |
| uint32 bufid; |
| uint16 buflen; |
| int ifidx = 0; |
| void* pkt; |
| unsigned long flags; |
| dhd_prot_t *prot = dhd->prot; |
| |
| /* Event complete header */ |
| evnt = (wlevent_req_msg_t *)msg; |
| bufid = ltoh32(evnt->cmn_hdr.request_id); |
| |
| #if defined(DHD_PKTID_AUDIT_RING) |
| if (DHD_PKTID_AUDIT(dhd, dhd->prot->pktid_map_handle, bufid, |
| DHD_DUPLICATE_FREE) == BCME_ERROR) { |
| prhex("dhd_prot_event_process:", |
| (uchar *)msg, D2HRING_CTRL_CMPLT_ITEMSIZE); |
| } |
| #endif /* DHD_PKTID_AUDIT_RING */ |
| |
| buflen = ltoh16(evnt->event_data_len); |
| |
| ifidx = BCMMSGBUF_API_IFIDX(&evnt->cmn_hdr); |
| |
| /* Post another rxbuf to the device */ |
| if (prot->cur_event_bufs_posted) { |
| prot->cur_event_bufs_posted--; |
| } |
| dhd_msgbuf_rxbuf_post_event_bufs(dhd); |
| |
| /* locks required to protect pktid_map */ |
| DHD_GENERAL_LOCK(dhd, flags); |
| pkt = dhd_prot_packet_get(dhd, bufid, PKTTYPE_EVENT_RX, TRUE); |
| DHD_GENERAL_UNLOCK(dhd, flags); |
| |
| if (!pkt) { |
| return; |
| } |
| |
| /* DMA RX offset updated through shared area */ |
| if (dhd->prot->rx_dataoffset) { |
| PKTPULL(dhd->osh, pkt, dhd->prot->rx_dataoffset); |
| } |
| |
| PKTSETLEN(dhd->osh, pkt, buflen); |
| |
| dhd_bus_rx_frame(dhd->bus, pkt, ifidx, 1); |
| } |
| |
| /** called on MSG_TYPE_RX_CMPLT message received from dongle */ |
| static void BCMFASTPATH |
| dhd_prot_rxcmplt_process(dhd_pub_t *dhd, void *msg) |
| { |
| host_rxbuf_cmpl_t *rxcmplt_h; |
| uint16 data_offset; /* offset at which data starts */ |
| void *pkt; |
| unsigned long flags; |
| uint ifidx; |
| uint32 pktid; |
| #if defined(DHD_LB_RXC) |
| const bool free_pktid = FALSE; |
| #else |
| const bool free_pktid = TRUE; |
| #endif /* DHD_LB_RXC */ |
| |
| /* RXCMPLT HDR */ |
| rxcmplt_h = (host_rxbuf_cmpl_t *)msg; |
| |
| /* offset from which data starts is populated in rxstatus0 */ |
| data_offset = ltoh16(rxcmplt_h->data_offset); |
| |
| pktid = ltoh32(rxcmplt_h->cmn_hdr.request_id); |
| |
| #if defined(DHD_PKTID_AUDIT_RING) |
| if (DHD_PKTID_AUDIT(dhd, dhd->prot->pktid_map_handle, pktid, |
| DHD_DUPLICATE_FREE) == BCME_ERROR) { |
| prhex("dhd_prot_rxcmplt_process:", |
| (uchar *)msg, D2HRING_RXCMPLT_ITEMSIZE); |
| } |
| #endif /* DHD_PKTID_AUDIT_RING */ |
| |
| DHD_GENERAL_LOCK(dhd, flags); |
| pkt = dhd_prot_packet_get(dhd, pktid, PKTTYPE_DATA_RX, free_pktid); |
| DHD_GENERAL_UNLOCK(dhd, flags); |
| |
| if (!pkt) { |
| return; |
| } |
| |
| /* Post another set of rxbufs to the device */ |
| dhd_prot_return_rxbuf(dhd, pktid, 1); |
| |
| DHD_INFO(("id 0x%04x, offset %d, len %d, idx %d, phase 0x%02x, pktdata %p, metalen %d\n", |
| ltoh32(rxcmplt_h->cmn_hdr.request_id), data_offset, ltoh16(rxcmplt_h->data_len), |
| rxcmplt_h->cmn_hdr.if_id, rxcmplt_h->cmn_hdr.flags, PKTDATA(dhd->osh, pkt), |
| ltoh16(rxcmplt_h->metadata_len))); |
| #if DHD_DBG_SHOW_METADATA |
| if (dhd->prot->metadata_dbg && |
| dhd->prot->rx_metadata_offset && rxcmplt_h->metadata_len) { |
| uchar *ptr; |
| ptr = PKTDATA(dhd->osh, pkt) - (dhd->prot->rx_metadata_offset); |
| /* header followed by data */ |
| bcm_print_bytes("rxmetadata", ptr, rxcmplt_h->metadata_len); |
| dhd_prot_print_metadata(dhd, ptr, rxcmplt_h->metadata_len); |
| } |
| #endif /* DHD_DBG_SHOW_METADATA */ |
| |
| if (rxcmplt_h->flags & BCMPCIE_PKT_FLAGS_FRAME_802_11) { |
| DHD_INFO(("D11 frame rxed \n")); |
| } |
| |
| /* data_offset from buf start */ |
| if (data_offset) { |
| /* data offset given from dongle after split rx */ |
| PKTPULL(dhd->osh, pkt, data_offset); /* data offset */ |
| } else { |
| /* DMA RX offset updated through shared area */ |
| if (dhd->prot->rx_dataoffset) { |
| PKTPULL(dhd->osh, pkt, dhd->prot->rx_dataoffset); |
| } |
| } |
| /* Actual length of the packet */ |
| PKTSETLEN(dhd->osh, pkt, ltoh16(rxcmplt_h->data_len)); |
| |
| ifidx = rxcmplt_h->cmn_hdr.if_id; |
| |
| #if defined(DHD_LB_RXP) |
| dhd_lb_rx_pkt_enqueue(dhd, pkt, ifidx); |
| #else /* ! DHD_LB_RXP */ |
| #ifdef DHD_RX_CHAINING |
| /* Chain the packets */ |
| dhd_rxchain_frame(dhd, pkt, ifidx); |
| #else /* ! DHD_RX_CHAINING */ |
| /* offset from which data starts is populated in rxstatus0 */ |
| dhd_bus_rx_frame(dhd->bus, pkt, ifidx, 1); |
| #endif /* ! DHD_RX_CHAINING */ |
| #endif /* ! DHD_LB_RXP */ |
| } /* dhd_prot_rxcmplt_process */ |
| |
| /** Stop protocol: sync w/dongle state. */ |
| void dhd_prot_stop(dhd_pub_t *dhd) |
| { |
| ASSERT(dhd); |
| DHD_TRACE(("%s: Enter\n", __FUNCTION__)); |
| |
| } |
| |
| /* Add any protocol-specific data header. |
| * Caller must reserve prot_hdrlen prepend space. |
| */ |
| void BCMFASTPATH |
| dhd_prot_hdrpush(dhd_pub_t *dhd, int ifidx, void *PKTBUF) |
| { |
| return; |
| } |
| |
| uint |
| dhd_prot_hdrlen(dhd_pub_t *dhd, void *PKTBUF) |
| { |
| return 0; |
| } |
| |
| |
| #define PKTBUF pktbuf |
| |
| /** |
| * Called when a tx ethernet packet has been dequeued from a flow queue, and has to be inserted in |
| * the corresponding flow ring. |
| */ |
| int BCMFASTPATH |
| dhd_prot_txdata(dhd_pub_t *dhd, void *PKTBUF, uint8 ifidx) |
| { |
| unsigned long flags; |
| dhd_prot_t *prot = dhd->prot; |
| host_txbuf_post_t *txdesc = NULL; |
| dmaaddr_t pa, meta_pa; |
| uint8 *pktdata; |
| uint32 pktlen; |
| uint32 pktid; |
| uint8 prio; |
| uint16 flowid = 0; |
| uint16 alloced = 0; |
| uint16 headroom; |
| msgbuf_ring_t *ring; |
| flow_ring_table_t *flow_ring_table; |
| flow_ring_node_t *flow_ring_node; |
| |
| if (dhd->flow_ring_table == NULL) { |
| return BCME_NORESOURCE; |
| } |
| |
| flowid = DHD_PKT_GET_FLOWID(PKTBUF); |
| |
| flow_ring_table = (flow_ring_table_t *)dhd->flow_ring_table; |
| flow_ring_node = (flow_ring_node_t *)&flow_ring_table[flowid]; |
| |
| ring = (msgbuf_ring_t *)flow_ring_node->prot_info; |
| |
| |
| DHD_GENERAL_LOCK(dhd, flags); |
| |
| /* Create a unique 32-bit packet id */ |
| pktid = DHD_NATIVE_TO_PKTID_RSV(dhd, dhd->prot->pktid_map_handle, PKTBUF); |
| #if defined(DHD_PCIE_PKTID) |
| if (pktid == DHD_PKTID_INVALID) { |
| DHD_ERROR(("Pktid pool depleted.\n")); |
| /* |
| * If we return error here, the caller would queue the packet |
| * again. So we'll just free the skb allocated in DMA Zone. |
| * Since we have not freed the original SKB yet the caller would |
| * requeue the same. |
| */ |
| goto err_no_res_pktfree; |
| } |
| #endif /* DHD_PCIE_PKTID */ |
| |
| /* Reserve space in the circular buffer */ |
| txdesc = (host_txbuf_post_t *) |
| dhd_prot_alloc_ring_space(dhd, ring, 1, &alloced, FALSE); |
| if (txdesc == NULL) { |
| #if defined(DHD_PCIE_PKTID) |
| void *dmah; |
| void *secdma; |
| /* Free up the PKTID. physaddr and pktlen will be garbage. */ |
| DHD_PKTID_TO_NATIVE(dhd, dhd->prot->pktid_map_handle, pktid, |
| pa, pktlen, dmah, secdma, PKTTYPE_NO_CHECK); |
| #endif /* DHD_PCIE_PKTID */ |
| DHD_INFO(("%s:%d: HTOD Msgbuf Not available TxCount = %d\n", |
| __FUNCTION__, __LINE__, prot->active_tx_count)); |
| goto err_no_res_pktfree; |
| } |
| |
| /* Extract the data pointer and length information */ |
| pktdata = PKTDATA(dhd->osh, PKTBUF); |
| pktlen = PKTLEN(dhd->osh, PKTBUF); |
| |
| /* Ethernet header: Copy before we cache flush packet using DMA_MAP */ |
| bcopy(pktdata, txdesc->txhdr, ETHER_HDR_LEN); |
| |
| /* Extract the ethernet header and adjust the data pointer and length */ |
| pktdata = PKTPULL(dhd->osh, PKTBUF, ETHER_HDR_LEN); |
| pktlen -= ETHER_HDR_LEN; |
| |
| /* Map the data pointer to a DMA-able address */ |
| if (SECURE_DMA_ENAB(dhd->osh)) { |
| int offset = 0; |
| BCM_REFERENCE(offset); |
| |
| if (prot->tx_metadata_offset) { |
| offset = prot->tx_metadata_offset + ETHER_HDR_LEN; |
| } |
| |
| pa = SECURE_DMA_MAP(dhd->osh, PKTDATA(dhd->osh, PKTBUF), pktlen, |
| DMA_TX, PKTBUF, 0, ring->dma_buf.secdma, offset); |
| } else { |
| pa = DMA_MAP(dhd->osh, PKTDATA(dhd->osh, PKTBUF), pktlen, DMA_TX, PKTBUF, 0); |
| } |
| |
| if (PHYSADDRISZERO(pa)) { |
| DHD_ERROR(("Something really bad, unless 0 is a valid phyaddr\n")); |
| ASSERT(0); |
| } |
| |
| /* No need to lock. Save the rest of the packet's metadata */ |
| DHD_NATIVE_TO_PKTID_SAVE(dhd, dhd->prot->pktid_map_handle, PKTBUF, pktid, |
| pa, pktlen, DMA_TX, NULL, ring->dma_buf.secdma, PKTTYPE_DATA_TX); |
| |
| #ifdef TXP_FLUSH_NITEMS |
| if (ring->pend_items_count == 0) { |
| ring->start_addr = (void *)txdesc; |
| } |
| ring->pend_items_count++; |
| #endif |
| |
| /* Form the Tx descriptor message buffer */ |
| |
| /* Common message hdr */ |
| txdesc->cmn_hdr.msg_type = MSG_TYPE_TX_POST; |
| txdesc->cmn_hdr.if_id = ifidx; |
| |
| txdesc->flags = BCMPCIE_PKT_FLAGS_FRAME_802_3; |
| prio = (uint8)PKTPRIO(PKTBUF); |
| |
| |
| txdesc->flags |= (prio & 0x7) << BCMPCIE_PKT_FLAGS_PRIO_SHIFT; |
| txdesc->seg_cnt = 1; |
| |
| txdesc->data_len = htol16((uint16) pktlen); |
| txdesc->data_buf_addr.high_addr = htol32(PHYSADDRHI(pa)); |
| txdesc->data_buf_addr.low_addr = htol32(PHYSADDRLO(pa)); |
| |
| /* Move data pointer to keep ether header in local PKTBUF for later reference */ |
| PKTPUSH(dhd->osh, PKTBUF, ETHER_HDR_LEN); |
| |
| /* Handle Tx metadata */ |
| headroom = (uint16)PKTHEADROOM(dhd->osh, PKTBUF); |
| if (prot->tx_metadata_offset && (headroom < prot->tx_metadata_offset)) { |
| DHD_ERROR(("No headroom for Metadata tx %d %d\n", |
| prot->tx_metadata_offset, headroom)); |
| } |
| |
| if (prot->tx_metadata_offset && (headroom >= prot->tx_metadata_offset)) { |
| DHD_TRACE(("Metadata in tx %d\n", prot->tx_metadata_offset)); |
| |
| /* Adjust the data pointer to account for meta data in DMA_MAP */ |
| PKTPUSH(dhd->osh, PKTBUF, prot->tx_metadata_offset); |
| |
| if (SECURE_DMA_ENAB(dhd->osh)) { |
| meta_pa = SECURE_DMA_MAP_TXMETA(dhd->osh, PKTDATA(dhd->osh, PKTBUF), |
| prot->tx_metadata_offset + ETHER_HDR_LEN, DMA_RX, PKTBUF, |
| 0, ring->dma_buf.secdma); |
| } else { |
| meta_pa = DMA_MAP(dhd->osh, PKTDATA(dhd->osh, PKTBUF), |
| prot->tx_metadata_offset, DMA_RX, PKTBUF, 0); |
| } |
| |
| if (PHYSADDRISZERO(meta_pa)) { |
| DHD_ERROR(("Something really bad, unless 0 is a valid phyaddr\n")); |
| ASSERT(0); |
| } |
| |
| /* Adjust the data pointer back to original value */ |
| PKTPULL(dhd->osh, PKTBUF, prot->tx_metadata_offset); |
| |
| txdesc->metadata_buf_len = prot->tx_metadata_offset; |
| txdesc->metadata_buf_addr.high_addr = htol32(PHYSADDRHI(meta_pa)); |
| txdesc->metadata_buf_addr.low_addr = htol32(PHYSADDRLO(meta_pa)); |
| } else { |
| txdesc->metadata_buf_len = htol16(0); |
| txdesc->metadata_buf_addr.high_addr = 0; |
| txdesc->metadata_buf_addr.low_addr = 0; |
| } |
| |
| #if defined(DHD_PKTID_AUDIT_RING) |
| DHD_PKTID_AUDIT(dhd, prot->pktid_map_handle, pktid, |
| DHD_DUPLICATE_ALLOC); |
| #endif /* DHD_PKTID_AUDIT_RING */ |
| |
| txdesc->cmn_hdr.request_id = htol32(pktid); |
| |
| DHD_TRACE(("txpost: data_len %d, pktid 0x%04x\n", txdesc->data_len, |
| txdesc->cmn_hdr.request_id)); |
| |
| /* Update the write pointer in TCM & ring bell */ |
| #ifdef TXP_FLUSH_NITEMS |
| /* Flush if we have either hit the txp_threshold or if this msg is */ |
| /* occupying the last slot in the flow_ring - before wrap around. */ |
| if ((ring->pend_items_count == prot->txp_threshold) || |
| ((uint8 *) txdesc == (uint8 *) DHD_RING_END_VA(ring))) { |
| dhd_prot_txdata_write_flush(dhd, flowid, TRUE); |
| } |
| #else |
| /* update ring's WR index and ring doorbell to dongle */ |
| dhd_prot_ring_write_complete(dhd, ring, txdesc, 1); |
| #endif |
| |
| prot->active_tx_count++; |
| |
| /* |
| * Take a wake lock, do not sleep if we have atleast one packet |
| * to finish. |
| */ |
| if (prot->active_tx_count == 1) |
| DHD_TXFL_WAKE_LOCK(dhd); |
| |
| DHD_GENERAL_UNLOCK(dhd, flags); |
| |
| return BCME_OK; |
| |
| err_no_res_pktfree: |
| |
| |
| |
| DHD_GENERAL_UNLOCK(dhd, flags); |
| return BCME_NORESOURCE; |
| } /* dhd_prot_txdata */ |
| |
| /* called with a lock */ |
| /** optimization to write "n" tx items at a time to ring */ |
| void BCMFASTPATH |
| dhd_prot_txdata_write_flush(dhd_pub_t *dhd, uint16 flowid, bool in_lock) |
| { |
| #ifdef TXP_FLUSH_NITEMS |
| unsigned long flags = 0; |
| flow_ring_table_t *flow_ring_table; |
| flow_ring_node_t *flow_ring_node; |
| msgbuf_ring_t *ring; |
| |
| if (dhd->flow_ring_table == NULL) { |
| return; |
| } |
| |
| if (!in_lock) { |
| DHD_GENERAL_LOCK(dhd, flags); |
| } |
| |
| flow_ring_table = (flow_ring_table_t *)dhd->flow_ring_table; |
| flow_ring_node = (flow_ring_node_t *)&flow_ring_table[flowid]; |
| ring = (msgbuf_ring_t *)flow_ring_node->prot_info; |
| |
| if (ring->pend_items_count) { |
| /* update ring's WR index and ring doorbell to dongle */ |
| dhd_prot_ring_write_complete(dhd, ring, ring->start_addr, |
| ring->pend_items_count); |
| ring->pend_items_count = 0; |
| ring->start_addr = NULL; |
| } |
| |
| if (!in_lock) { |
| DHD_GENERAL_UNLOCK(dhd, flags); |
| } |
| #endif /* TXP_FLUSH_NITEMS */ |
| } |
| |
| #undef PKTBUF /* Only defined in the above routine */ |
| |
| int BCMFASTPATH |
| dhd_prot_hdrpull(dhd_pub_t *dhd, int *ifidx, void *pkt, uchar *buf, uint *len) |
| { |
| return 0; |
| } |
| |
| /** post a set of receive buffers to the dongle */ |
| static void BCMFASTPATH |
| dhd_prot_return_rxbuf(dhd_pub_t *dhd, uint32 pktid, uint32 rxcnt) |
| { |
| dhd_prot_t *prot = dhd->prot; |
| #if defined(DHD_LB_RXC) |
| int elem_ix; |
| uint32 *elem; |
| bcm_workq_t *workq; |
| |
| workq = &prot->rx_compl_prod; |
| |
| /* Produce the work item */ |
| elem_ix = bcm_ring_prod(WORKQ_RING(workq), DHD_LB_WORKQ_SZ); |
| if (elem_ix == BCM_RING_FULL) { |
| DHD_ERROR(("%s LB RxCompl workQ is full\n", __FUNCTION__)); |
| ASSERT(0); |
| return; |
| } |
| |
| elem = WORKQ_ELEMENT(uint32, workq, elem_ix); |
| *elem = pktid; |
| |
| smp_wmb(); |
| |
| /* Sync WR index to consumer if the SYNC threshold has been reached */ |
| if (++prot->rx_compl_prod_sync >= DHD_LB_WORKQ_SYNC) { |
| bcm_workq_prod_sync(workq); |
| prot->rx_compl_prod_sync = 0; |
| } |
| |
| DHD_INFO(("%s: rx_compl_prod pktid<%u> sync<%d>\n", |
| __FUNCTION__, pktid, prot->rx_compl_prod_sync)); |
| |
| #endif /* DHD_LB_RXC */ |
| |
| |
| if (prot->rxbufpost >= rxcnt) { |
| prot->rxbufpost -= rxcnt; |
| } else { |
| /* ASSERT(0); */ |
| prot->rxbufpost = 0; |
| } |
| |
| #if !defined(DHD_LB_RXC) |
| if (prot->rxbufpost <= (prot->max_rxbufpost - RXBUFPOST_THRESHOLD)) { |
| dhd_msgbuf_rxbuf_post(dhd, FALSE); /* alloc pkt ids */ |
| } |
| #endif /* !DHD_LB_RXC */ |
| } |
| |
| /* called before an ioctl is sent to the dongle */ |
| static void |
| dhd_prot_wlioctl_intercept(dhd_pub_t *dhd, wl_ioctl_t * ioc, void * buf) |
| { |
| dhd_prot_t *prot = dhd->prot; |
| |
| if (ioc->cmd == WLC_SET_VAR && buf != NULL && !strcmp(buf, "pcie_bus_tput")) { |
| int slen = 0; |
| pcie_bus_tput_params_t *tput_params; |
| |
| slen = strlen("pcie_bus_tput") + 1; |
| tput_params = (pcie_bus_tput_params_t*)((char *)buf + slen); |
| bcopy(&prot->host_bus_throughput_buf.pa, &tput_params->host_buf_addr, |
| sizeof(tput_params->host_buf_addr)); |
| tput_params->host_buf_len = DHD_BUS_TPUT_BUF_LEN; |
| } |
| } |
| |
| |
| /** Use protocol to issue ioctl to dongle. Only one ioctl may be in transit. */ |
| int dhd_prot_ioctl(dhd_pub_t *dhd, int ifidx, wl_ioctl_t * ioc, void * buf, int len) |
| { |
| int ret = -1; |
| uint8 action; |
| |
| if ((dhd->busstate == DHD_BUS_DOWN) || dhd->hang_was_sent) { |
| DHD_ERROR(("%s : bus is down. we have nothing to do\n", __FUNCTION__)); |
| goto done; |
| } |
| |
| if (dhd->busstate == DHD_BUS_SUSPEND) { |
| DHD_ERROR(("%s : bus is suspended\n", __FUNCTION__)); |
| goto done; |
| } |
| |
| DHD_TRACE(("%s: Enter\n", __FUNCTION__)); |
| |
| if (ioc->cmd == WLC_SET_PM) { |
| DHD_TRACE_HW4(("%s: SET PM to %d\n", __FUNCTION__, *(char *)buf)); |
| } |
| |
| ASSERT(len <= WLC_IOCTL_MAXLEN); |
| |
| if (len > WLC_IOCTL_MAXLEN) { |
| goto done; |
| } |
| |
| action = ioc->set; |
| |
| dhd_prot_wlioctl_intercept(dhd, ioc, buf); |
| |
| if (action & WL_IOCTL_ACTION_SET) { |
| ret = dhd_msgbuf_set_ioctl(dhd, ifidx, ioc->cmd, buf, len, action); |
| } else { |
| ret = dhd_msgbuf_query_ioctl(dhd, ifidx, ioc->cmd, buf, len, action); |
| if (ret > 0) { |
| ioc->used = ret; |
| } |
| } |
| |
| /* Too many programs assume ioctl() returns 0 on success */ |
| if (ret >= 0) { |
| ret = 0; |
| } else { |
| DHD_ERROR(("%s: status ret value is %d \n", __FUNCTION__, ret)); |
| dhd->dongle_error = ret; |
| } |
| |
| if (!ret && ioc->cmd == WLC_SET_VAR && buf != NULL) { |
| /* Intercept the wme_dp ioctl here */ |
| if (!strcmp(buf, "wme_dp")) { |
| int slen, val = 0; |
| |
| slen = strlen("wme_dp") + 1; |
| if (len >= (int)(slen + sizeof(int))) { |
| bcopy(((char *)buf + slen), &val, sizeof(int)); |
| } |
| dhd->wme_dp = (uint8) ltoh32(val); |
| } |
| |
| } |
| |
| done: |
| return ret; |
| |
| } /* dhd_prot_ioctl */ |
| |
| /** test / loopback */ |
| |
| int |
| dhdmsgbuf_lpbk_req(dhd_pub_t *dhd, uint len) |
| { |
| unsigned long flags; |
| dhd_prot_t *prot = dhd->prot; |
| uint16 alloced = 0; |
| |
| ioct_reqst_hdr_t *ioct_rqst; |
| |
| uint16 hdrlen = sizeof(ioct_reqst_hdr_t); |
| uint16 msglen = len + hdrlen; |
| msgbuf_ring_t *ring = &prot->h2dring_ctrl_subn; |
| |
| msglen = ALIGN_SIZE(msglen, DMA_ALIGN_LEN); |
| msglen = LIMIT_TO_MAX(msglen, MSGBUF_MAX_MSG_SIZE); |
| |
| DHD_GENERAL_LOCK(dhd, flags); |
| |
| ioct_rqst = (ioct_reqst_hdr_t *) |
| dhd_prot_alloc_ring_space(dhd, ring, 1, &alloced, FALSE); |
| |
| if (ioct_rqst == NULL) { |
| DHD_GENERAL_UNLOCK(dhd, flags); |
| return 0; |
| } |
| |
| { |
| uint8 *ptr; |
| uint16 i; |
| |
| ptr = (uint8 *)ioct_rqst; |
| for (i = 0; i < msglen; i++) { |
| ptr[i] = i % 256; |
| } |
| } |
| |
| /* Common msg buf hdr */ |
| ioct_rqst->msg.epoch = ring->seqnum % H2D_EPOCH_MODULO; |
| ring->seqnum++; |
| |
| ioct_rqst->msg.msg_type = MSG_TYPE_LOOPBACK; |
| ioct_rqst->msg.if_id = 0; |
| |
| bcm_print_bytes("LPBK REQ: ", (uint8 *)ioct_rqst, msglen); |
| |
| /* update ring's WR index and ring doorbell to dongle */ |
| dhd_prot_ring_write_complete(dhd, ring, ioct_rqst, 1); |
| DHD_GENERAL_UNLOCK(dhd, flags); |
| |
| return 0; |
| } |
| |
| /** test / loopback */ |
| void dmaxfer_free_dmaaddr(dhd_pub_t *dhd, dhd_dmaxfer_t *dmaxfer) |
| { |
| if (dmaxfer == NULL) { |
| return; |
| } |
| |
| dhd_dma_buf_free(dhd, &dmaxfer->srcmem); |
| dhd_dma_buf_free(dhd, &dmaxfer->dstmem); |
| } |
| |
| /** test / loopback */ |
| int dmaxfer_prepare_dmaaddr(dhd_pub_t *dhd, uint len, |
| uint srcdelay, uint destdelay, dhd_dmaxfer_t *dmaxfer) |
| { |
| uint i; |
| if (!dmaxfer) { |
| return BCME_ERROR; |
| } |
| |
| /* First free up existing buffers */ |
| dmaxfer_free_dmaaddr(dhd, dmaxfer); |
| |
| if (dhd_dma_buf_alloc(dhd, &dmaxfer->srcmem, len)) { |
| return BCME_NOMEM; |
| } |
| |
| if (dhd_dma_buf_alloc(dhd, &dmaxfer->dstmem, len + 8)) { |
| dhd_dma_buf_free(dhd, &dmaxfer->srcmem); |
| return BCME_NOMEM; |
| } |
| |
| dmaxfer->len = len; |
| |
| /* Populate source with a pattern */ |
| for (i = 0; i < dmaxfer->len; i++) { |
| ((uint8*)dmaxfer->srcmem.va)[i] = i % 256; |
| } |
| OSL_CACHE_FLUSH(dmaxfer->srcmem.va, dmaxfer->len); |
| |
| dmaxfer->srcdelay = srcdelay; |
| dmaxfer->destdelay = destdelay; |
| |
| return BCME_OK; |
| } /* dmaxfer_prepare_dmaaddr */ |
| |
| static void |
| dhd_msgbuf_dmaxfer_process(dhd_pub_t *dhd, void *msg) |
| { |
| dhd_prot_t *prot = dhd->prot; |
| |
| OSL_CACHE_INV(prot->dmaxfer.dstmem.va, prot->dmaxfer.len); |
| if (prot->dmaxfer.srcmem.va && prot->dmaxfer.dstmem.va) { |
| if (memcmp(prot->dmaxfer.srcmem.va, |
| prot->dmaxfer.dstmem.va, prot->dmaxfer.len)) { |
| bcm_print_bytes("XFER SRC: ", |
| prot->dmaxfer.srcmem.va, prot->dmaxfer.len); |
| bcm_print_bytes("XFER DST: ", |
| prot->dmaxfer.dstmem.va, prot->dmaxfer.len); |
| } else { |
| DHD_INFO(("DMA successful\n")); |
| } |
| } |
| dmaxfer_free_dmaaddr(dhd, &prot->dmaxfer); |
| dhd->prot->dmaxfer.in_progress = FALSE; |
| } |
| |
| /** Test functionality. |
| * Transfers bytes from host to dongle and to host again using DMA |
| * This function is not reentrant, as prot->dmaxfer.in_progress is not protected |
| * by a spinlock. |
| */ |
| int |
| dhdmsgbuf_dmaxfer_req(dhd_pub_t *dhd, uint len, uint srcdelay, uint destdelay) |
| { |
| unsigned long flags; |
| int ret = BCME_OK; |
| dhd_prot_t *prot = dhd->prot; |
| pcie_dma_xfer_params_t *dmap; |
| uint32 xferlen = LIMIT_TO_MAX(len, DMA_XFER_LEN_LIMIT); |
| uint16 alloced = 0; |
| msgbuf_ring_t *ring = &prot->h2dring_ctrl_subn; |
| |
| if (prot->dmaxfer.in_progress) { |
| DHD_ERROR(("DMA is in progress...\n")); |
| return ret; |
| } |
| |
| prot->dmaxfer.in_progress = TRUE; |
| if ((ret = dmaxfer_prepare_dmaaddr(dhd, xferlen, srcdelay, destdelay, |
| &prot->dmaxfer)) != BCME_OK) { |
| prot->dmaxfer.in_progress = FALSE; |
| return ret; |
| } |
| |
| DHD_GENERAL_LOCK(dhd, flags); |
| |
| dmap = (pcie_dma_xfer_params_t *) |
| dhd_prot_alloc_ring_space(dhd, ring, 1, &alloced, FALSE); |
| |
| if (dmap == NULL) { |
| dmaxfer_free_dmaaddr(dhd, &prot->dmaxfer); |
| prot->dmaxfer.in_progress = FALSE; |
| DHD_GENERAL_UNLOCK(dhd, flags); |
| return BCME_NOMEM; |
| } |
| |
| /* Common msg buf hdr */ |
| dmap->cmn_hdr.msg_type = MSG_TYPE_LPBK_DMAXFER; |
| dmap->cmn_hdr.request_id = htol32(DHD_FAKE_PKTID); |
| dmap->cmn_hdr.epoch = ring->seqnum % H2D_EPOCH_MODULO; |
| ring->seqnum++; |
| |
| dmap->host_input_buf_addr.high = htol32(PHYSADDRHI(prot->dmaxfer.srcmem.pa)); |
| dmap->host_input_buf_addr.low = htol32(PHYSADDRLO(prot->dmaxfer.srcmem.pa)); |
| dmap->host_ouput_buf_addr.high = htol32(PHYSADDRHI(prot->dmaxfer.dstmem.pa)); |
| dmap->host_ouput_buf_addr.low = htol32(PHYSADDRLO(prot->dmaxfer.dstmem.pa)); |
| dmap->xfer_len = htol32(prot->dmaxfer.len); |
| dmap->srcdelay = htol32(prot->dmaxfer.srcdelay); |
| dmap->destdelay = htol32(prot->dmaxfer.destdelay); |
| |
| /* update ring's WR index and ring doorbell to dongle */ |
| dhd_prot_ring_write_complete(dhd, ring, dmap, 1); |
| DHD_GENERAL_UNLOCK(dhd, flags); |
| |
| DHD_ERROR(("DMA Started...\n")); |
| |
| return BCME_OK; |
| } /* dhdmsgbuf_dmaxfer_req */ |
| |
| /** Called in the process of submitting an ioctl to the dongle */ |
| static int |
| dhd_msgbuf_query_ioctl(dhd_pub_t *dhd, int ifidx, uint cmd, void *buf, uint len, uint8 action) |
| { |
| int ret = 0; |
| uint copylen = 0; |
| |
| DHD_TRACE(("%s: Enter\n", __FUNCTION__)); |
| |
| if (!len || !buf) { |
| DHD_ERROR(("%s(): Zero length bailing\n", __FUNCTION__)); |
| ret = BCME_BADARG; |
| goto done; |
| } |
| |
| /* Respond "bcmerror" and "bcmerrorstr" with local cache */ |
| if (cmd == WLC_GET_VAR) { |
| if ((len >= strlen("bcmerrorstr")) && (!strcmp((char *)buf, "bcmerrorstr"))) { |
| copylen = MIN(len, BCME_STRLEN); |
| strncpy((char *)buf, bcmerrorstr(dhd->dongle_error), copylen); |
| *(uint8 *)(buf + (copylen - 1)) = '\0'; |
| goto done; |
| } else if ((len >= strlen("bcmerror")) && !strcmp((char *)buf, "bcmerror")) { |
| store32_ua(buf, dhd->dongle_error); |
| *(uint8 *)(buf + (sizeof(uint32))) = '\0'; |
| goto done; |
| } |
| } |
| |
| ret = dhd_fillup_ioct_reqst(dhd, (uint16)len, cmd, buf, ifidx); |
| |
| DHD_CTL(("query_ioctl: ACTION %d ifdix %d cmd %d len %d \n", |
| action, ifidx, cmd, len)); |
| |
| /* wait for IOCTL completion message from dongle and get first fragment */ |
| ret = dhd_msgbuf_wait_ioctl_cmplt(dhd, len, buf); |
| |
| done: |
| return ret; |
| } |
| |
| /** |
| * Waits for IOCTL completion message from the dongle, copies this into caller |
| * provided parameter 'buf'. |
| */ |
| static int |
| dhd_msgbuf_wait_ioctl_cmplt(dhd_pub_t *dhd, uint32 len, void *buf) |
| { |
| dhd_prot_t *prot = dhd->prot; |
| int timeleft; |
| unsigned long flags; |
| int ret = 0; |
| |
| DHD_TRACE(("%s: Enter\n", __FUNCTION__)); |
| |
| if (dhd_query_bus_erros(dhd)) { |
| ret = -EIO; |
| goto out; |
| } |
| |
| if (prot->cur_ioctlresp_bufs_posted) { |
| prot->cur_ioctlresp_bufs_posted--; |
| } |
| |
| dhd_msgbuf_rxbuf_post_ioctlresp_bufs(dhd); |
| |
| timeleft = dhd_os_ioctl_resp_wait(dhd, &prot->ioctl_received); |
| if (timeleft == 0) { |
| dhd->rxcnt_timeout++; |
| dhd->rx_ctlerrs++; |
| dhd->iovar_timeout_occured = TRUE; |
| DHD_ERROR(("%s: resumed on timeout rxcnt_timeout %d ioctl_cmd %d " |
| "trans_id %d state %d busstate=%d ioctl_received=%d\n", |
| __FUNCTION__, dhd->rxcnt_timeout, prot->curr_ioctl_cmd, |
| prot->ioctl_trans_id, prot->ioctl_state, |
| dhd->busstate, prot->ioctl_received)); |
| |
| dhd_prot_debug_info_print(dhd); |
| |
| #ifdef DHD_FW_COREDUMP |
| /* Collect socram dump */ |
| if (dhd->memdump_enabled) { |
| /* collect core dump */ |
| dhd->memdump_type = DUMP_TYPE_RESUMED_ON_TIMEOUT; |
| dhd_bus_mem_dump(dhd); |
| } |
| #endif /* DHD_FW_COREDUMP */ |
| if (dhd->rxcnt_timeout >= MAX_CNTL_RX_TIMEOUT) { |
| #ifdef SUPPORT_LINKDOWN_RECOVERY |
| #ifdef CONFIG_ARCH_MSM |
| dhd->bus->no_cfg_restore = 1; |
| #endif /* CONFIG_ARCH_MSM */ |
| #endif /* SUPPORT_LINKDOWN_RECOVERY */ |
| DHD_ERROR(("%s: timeout > MAX_CNTL_TX_TIMEOUT\n", __FUNCTION__)); |
| } |
| ret = -ETIMEDOUT; |
| goto out; |
| } else { |
| if (prot->ioctl_received != IOCTL_RETURN_ON_SUCCESS) { |
| DHD_ERROR(("%s: IOCTL failure due to ioctl_received = %d\n", |
| __FUNCTION__, prot->ioctl_received)); |
| ret = -ECONNABORTED; |
| goto out; |
| } |
| dhd->rxcnt_timeout = 0; |
| dhd->rx_ctlpkts++; |
| DHD_CTL(("%s: ioctl resp resumed, got %d\n", |
| __FUNCTION__, prot->ioctl_resplen)); |
| } |
| |
| if (dhd->dongle_trap_occured) { |
| #ifdef SUPPORT_LINKDOWN_RECOVERY |
| #ifdef CONFIG_ARCH_MSM |
| dhd->bus->no_cfg_restore = 1; |
| #endif /* CONFIG_ARCH_MSM */ |
| #endif /* SUPPORT_LINKDOWN_RECOVERY */ |
| DHD_ERROR(("%s: TRAP occurred!!\n", __FUNCTION__)); |
| ret = -EREMOTEIO; |
| goto out; |
| } |
| |
| if (dhd->prot->ioctl_resplen > len) { |
| dhd->prot->ioctl_resplen = (uint16)len; |
| } |
| if (buf) { |
| bcopy(dhd->prot->retbuf.va, buf, dhd->prot->ioctl_resplen); |
| } |
| |
| ret = (int)(dhd->prot->ioctl_status); |
| out: |
| DHD_GENERAL_LOCK(dhd, flags); |
| dhd->prot->ioctl_state = 0; |
| dhd->prot->ioctl_resplen = 0; |
| dhd->prot->ioctl_received = IOCTL_WAIT; |
| dhd->prot->curr_ioctl_cmd = 0; |
| DHD_GENERAL_UNLOCK(dhd, flags); |
| |
| return ret; |
| } /* dhd_msgbuf_wait_ioctl_cmplt */ |
| |
| static int |
| dhd_msgbuf_set_ioctl(dhd_pub_t *dhd, int ifidx, uint cmd, void *buf, uint len, uint8 action) |
| { |
| int ret = 0; |
| |
| DHD_TRACE(("%s: Enter \n", __FUNCTION__)); |
| |
| if (dhd->busstate == DHD_BUS_DOWN) { |
| DHD_ERROR(("%s : bus is down. we have nothing to do\n", __FUNCTION__)); |
| return -EIO; |
| } |
| |
| /* don't talk to the dongle if fw is about to be reloaded */ |
| if (dhd->hang_was_sent) { |
| DHD_ERROR(("%s: HANG was sent up earlier. Not talking to the chip\n", |
| __FUNCTION__)); |
| return -EIO; |
| } |
| |
| /* Fill up msgbuf for ioctl req */ |
| ret = dhd_fillup_ioct_reqst(dhd, (uint16)len, cmd, buf, ifidx); |
| |
| DHD_CTL(("ACTION %d ifdix %d cmd %d len %d \n", |
| action, ifidx, cmd, len)); |
| |
| ret = dhd_msgbuf_wait_ioctl_cmplt(dhd, len, buf); |
| |
| return ret; |
| } |
| |
| /** Called by upper DHD layer. Handles a protocol control response asynchronously. */ |
| int dhd_prot_ctl_complete(dhd_pub_t *dhd) |
| { |
| return 0; |
| } |
| |
| /** Called by upper DHD layer. Check for and handle local prot-specific iovar commands */ |
| int dhd_prot_iovar_op(dhd_pub_t *dhd, const char *name, |
| void *params, int plen, void *arg, int len, bool set) |
| { |
| return BCME_UNSUPPORTED; |
| } |
| |
| /** Add prot dump output to a buffer */ |
| void dhd_prot_dump(dhd_pub_t *dhd, struct bcmstrbuf *b) |
| { |
| |
| #if defined(PCIE_D2H_SYNC) |
| if (dhd->d2h_sync_mode & PCIE_SHARED_D2H_SYNC_SEQNUM) |
| bcm_bprintf(b, "\nd2h_sync: SEQNUM:"); |
| else if (dhd->d2h_sync_mode & PCIE_SHARED_D2H_SYNC_XORCSUM) |
| bcm_bprintf(b, "\nd2h_sync: XORCSUM:"); |
| else |
| bcm_bprintf(b, "\nd2h_sync: NONE:"); |
| bcm_bprintf(b, " d2h_sync_wait max<%lu> tot<%lu>\n", |
| dhd->prot->d2h_sync_wait_max, dhd->prot->d2h_sync_wait_tot); |
| #endif /* PCIE_D2H_SYNC */ |
| |
| bcm_bprintf(b, "\nDongle DMA Indices: h2d %d d2h %d index size %d bytes\n", |
| DMA_INDX_ENAB(dhd->dma_h2d_ring_upd_support), |
| DMA_INDX_ENAB(dhd->dma_d2h_ring_upd_support), |
| dhd->prot->rw_index_sz); |
| } |
| |
| /* Update local copy of dongle statistics */ |
| void dhd_prot_dstats(dhd_pub_t *dhd) |
| { |
| return; |
| } |
| |
| /** Called by upper DHD layer */ |
| int dhd_process_pkt_reorder_info(dhd_pub_t *dhd, uchar *reorder_info_buf, |
| uint reorder_info_len, void **pkt, uint32 *free_buf_count) |
| { |
| return 0; |
| } |
| |
| /** Debug related, post a dummy message to interrupt dongle. Used to process cons commands. */ |
| int |
| dhd_post_dummy_msg(dhd_pub_t *dhd) |
| { |
| unsigned long flags; |
| hostevent_hdr_t *hevent = NULL; |
| uint16 alloced = 0; |
| |
| dhd_prot_t *prot = dhd->prot; |
| msgbuf_ring_t *ring = &prot->h2dring_ctrl_subn; |
| |
| DHD_GENERAL_LOCK(dhd, flags); |
| |
| hevent = (hostevent_hdr_t *) |
| dhd_prot_alloc_ring_space(dhd, ring, 1, &alloced, FALSE); |
| |
| if (hevent == NULL) { |
| DHD_GENERAL_UNLOCK(dhd, flags); |
| return -1; |
| } |
| |
| /* CMN msg header */ |
| hevent->msg.epoch = ring->seqnum % H2D_EPOCH_MODULO; |
| ring->seqnum++; |
| hevent->msg.msg_type = MSG_TYPE_HOST_EVNT; |
| hevent->msg.if_id = 0; |
| |
| /* Event payload */ |
| hevent->evnt_pyld = htol32(HOST_EVENT_CONS_CMD); |
| |
| /* Since, we are filling the data directly into the bufptr obtained |
| * from the msgbuf, we can directly call the write_complete |
| */ |
| dhd_prot_ring_write_complete(dhd, ring, hevent, 1); |
| DHD_GENERAL_UNLOCK(dhd, flags); |
| |
| return 0; |
| } |
| |
| /** |
| * If exactly_nitems is true, this function will allocate space for nitems or fail |
| * If exactly_nitems is false, this function will allocate space for nitems or less |
| */ |
| static void * BCMFASTPATH |
| dhd_prot_alloc_ring_space(dhd_pub_t *dhd, msgbuf_ring_t *ring, |
| uint16 nitems, uint16 * alloced, bool exactly_nitems) |
| { |
| void * ret_buf; |
| |
| /* Alloc space for nitems in the ring */ |
| ret_buf = dhd_prot_get_ring_space(ring, nitems, alloced, exactly_nitems); |
| |
| if (ret_buf == NULL) { |
| /* if alloc failed , invalidate cached read ptr */ |
| if (DMA_INDX_ENAB(dhd->dma_d2h_ring_upd_support)) { |
| ring->rd = dhd_prot_dma_indx_get(dhd, H2D_DMA_INDX_RD_UPD, ring->idx); |
| } else { |
| dhd_bus_cmn_readshared(dhd->bus, &(ring->rd), RING_RD_UPD, ring->idx); |
| } |
| |
| /* Try allocating once more */ |
| ret_buf = dhd_prot_get_ring_space(ring, nitems, alloced, exactly_nitems); |
| |
| if (ret_buf == NULL) { |
| DHD_INFO(("%s: Ring space not available \n", ring->name)); |
| return NULL; |
| } |
| } |
| |
| /* Return alloced space */ |
| return ret_buf; |
| } |
| |
| /** |
| * Non inline ioct request. |
| * Form a ioctl request first as per ioctptr_reqst_hdr_t header in the circular buffer |
| * Form a separate request buffer where a 4 byte cmn header is added in the front |
| * buf contents from parent function is copied to remaining section of this buffer |
| */ |
| static int |
| dhd_fillup_ioct_reqst(dhd_pub_t *dhd, uint16 len, uint cmd, void* buf, int ifidx) |
| { |
| dhd_prot_t *prot = dhd->prot; |
| ioctl_req_msg_t *ioct_rqst; |
| void * ioct_buf; /* For ioctl payload */ |
| uint16 rqstlen, resplen; |
| unsigned long flags; |
| uint16 alloced = 0; |
| msgbuf_ring_t *ring = &prot->h2dring_ctrl_subn; |
| |
| if (dhd_query_bus_erros(dhd)) { |
| return -EIO; |
| } |
| |
| rqstlen = len; |
| resplen = len; |
| |
| /* Limit ioct request to MSGBUF_MAX_MSG_SIZE bytes including hdrs */ |
| /* 8K allocation of dongle buffer fails */ |
| /* dhd doesnt give separate input & output buf lens */ |
| /* so making the assumption that input length can never be more than 1.5k */ |
| rqstlen = MIN(rqstlen, MSGBUF_MAX_MSG_SIZE); |
| |
| DHD_GENERAL_LOCK(dhd, flags); |
| |
| if (prot->ioctl_state) { |
| DHD_ERROR(("%s: pending ioctl %02x\n", __FUNCTION__, prot->ioctl_state)); |
| DHD_GENERAL_UNLOCK(dhd, flags); |
| return BCME_BUSY; |
| } else { |
| prot->ioctl_state = MSGBUF_IOCTL_ACK_PENDING | MSGBUF_IOCTL_RESP_PENDING; |
| } |
| |
| /* Request for cbuf space */ |
| ioct_rqst = (ioctl_req_msg_t*) |
| dhd_prot_alloc_ring_space(dhd, ring, 1, &alloced, FALSE); |
| if (ioct_rqst == NULL) { |
| DHD_ERROR(("couldn't allocate space on msgring to send ioctl request\n")); |
| prot->ioctl_state = 0; |
| prot->curr_ioctl_cmd = 0; |
| prot->ioctl_received = IOCTL_WAIT; |
| DHD_GENERAL_UNLOCK(dhd, flags); |
| return -1; |
| } |
| |
| /* Common msg buf hdr */ |
| ioct_rqst->cmn_hdr.msg_type = MSG_TYPE_IOCTLPTR_REQ; |
| ioct_rqst->cmn_hdr.if_id = (uint8)ifidx; |
| ioct_rqst->cmn_hdr.flags = 0; |
| ioct_rqst->cmn_hdr.request_id = htol32(DHD_IOCTL_REQ_PKTID); |
| ioct_rqst->cmn_hdr.epoch = ring->seqnum % H2D_EPOCH_MODULO; |
| ring->seqnum++; |
| |
| ioct_rqst->cmd = htol32(cmd); |
| prot->curr_ioctl_cmd = cmd; |
| ioct_rqst->output_buf_len = htol16(resplen); |
| prot->ioctl_trans_id++; |
| ioct_rqst->trans_id = prot->ioctl_trans_id; |
| |
| /* populate ioctl buffer info */ |
| ioct_rqst->input_buf_len = htol16(rqstlen); |
| ioct_rqst->host_input_buf_addr.high = htol32(PHYSADDRHI(prot->ioctbuf.pa)); |
| ioct_rqst->host_input_buf_addr.low = htol32(PHYSADDRLO(prot->ioctbuf.pa)); |
| /* copy ioct payload */ |
| ioct_buf = (void *) prot->ioctbuf.va; |
| |
| if (buf) { |
| memcpy(ioct_buf, buf, len); |
| } |
| |
| OSL_CACHE_FLUSH((void *) prot->ioctbuf.va, len); |
| |
| if (!ISALIGNED(ioct_buf, DMA_ALIGN_LEN)) { |
| DHD_ERROR(("host ioct address unaligned !!!!! \n")); |
| } |
| |
| DHD_CTL(("submitted IOCTL request request_id %d, cmd %d, output_buf_len %d, tx_id %d\n", |
| ioct_rqst->cmn_hdr.request_id, cmd, ioct_rqst->output_buf_len, |
| ioct_rqst->trans_id)); |
| |
| /* update ring's WR index and ring doorbell to dongle */ |
| dhd_prot_ring_write_complete(dhd, ring, ioct_rqst, 1); |
| DHD_GENERAL_UNLOCK(dhd, flags); |
| |
| return 0; |
| } /* dhd_fillup_ioct_reqst */ |
| |
| |
| /** |
| * dhd_prot_ring_attach - Initialize the msgbuf_ring object and attach a |
| * DMA-able buffer to it. The ring is NOT tagged as inited until all the ring |
| * information is posted to the dongle. |
| * |
| * Invoked in dhd_prot_attach for the common rings, and in dhd_prot_init for |
| * each flowring in pool of flowrings. |
| * |
| * returns BCME_OK=0 on success |
| * returns non-zero negative error value on failure. |
| */ |
| static int |
| dhd_prot_ring_attach(dhd_pub_t *dhd, msgbuf_ring_t *ring, const char *name, |
| uint16 max_items, uint16 item_len, uint16 ringid) |
| { |
| int dma_buf_alloced = BCME_NOMEM; |
| uint32 dma_buf_len = max_items * item_len; |
| dhd_prot_t *prot = dhd->prot; |
| |
| ASSERT(ring); |
| ASSERT(name); |
| ASSERT((max_items < 0xFFFF) && (item_len < 0xFFFF) && (ringid < 0xFFFF)); |
| |
| /* Init name */ |
| strncpy(ring->name, name, RING_NAME_MAX_LENGTH); |
| ring->name[RING_NAME_MAX_LENGTH - 1] = '\0'; |
| |
| ring->idx = ringid; |
| |
| ring->max_items = max_items; |
| ring->item_len = item_len; |
| |
| /* A contiguous space may be reserved for all flowrings */ |
| if (DHD_IS_FLOWRING(ringid) && (prot->flowrings_dma_buf.va)) { |
| /* Carve out from the contiguous DMA-able flowring buffer */ |
| uint16 flowid; |
| uint32 base_offset; |
| |
| dhd_dma_buf_t *dma_buf = &ring->dma_buf; |
| dhd_dma_buf_t *rsv_buf = &prot->flowrings_dma_buf; |
| |
| flowid = DHD_RINGID_TO_FLOWID(ringid); |
| base_offset = (flowid - BCMPCIE_H2D_COMMON_MSGRINGS) * dma_buf_len; |
| |
| ASSERT(base_offset + dma_buf_len <= rsv_buf->len); |
| |
| dma_buf->len = dma_buf_len; |
| dma_buf->va = (void *)((uintptr)rsv_buf->va + base_offset); |
| PHYSADDRHISET(dma_buf->pa, PHYSADDRHI(rsv_buf->pa)); |
| PHYSADDRLOSET(dma_buf->pa, PHYSADDRLO(rsv_buf->pa) + base_offset); |
| |
| /* On 64bit, contiguous space may not span across 0x00000000FFFFFFFF */ |
| ASSERT(PHYSADDRLO(dma_buf->pa) >= PHYSADDRLO(rsv_buf->pa)); |
| |
| dma_buf->dmah = rsv_buf->dmah; |
| dma_buf->secdma = rsv_buf->secdma; |
| |
| (void)dhd_dma_buf_audit(dhd, &ring->dma_buf); |
| } else { |
| /* Allocate a dhd_dma_buf */ |
| dma_buf_alloced = dhd_dma_buf_alloc(dhd, &ring->dma_buf, dma_buf_len); |
| if (dma_buf_alloced != BCME_OK) { |
| return BCME_NOMEM; |
| } |
| } |
| |
| /* CAUTION: Save ring::base_addr in little endian format! */ |
| dhd_base_addr_htolpa(&ring->base_addr, ring->dma_buf.pa); |
| |
| #ifdef BCM_SECURE_DMA |
| if (SECURE_DMA_ENAB(prot->osh)) { |
| ring->dma_buf.secdma = MALLOCZ(prot->osh, sizeof(sec_cma_info_t)); |
| if (ring->dma_buf.secdma == NULL) { |
| goto free_dma_buf; |
| } |
| } |
| #endif /* BCM_SECURE_DMA */ |
| |
| DHD_INFO(("RING_ATTACH : %s Max item %d len item %d total size %d " |
| "ring start %p buf phys addr %x:%x \n", |
| ring->name, ring->max_items, ring->item_len, |
| dma_buf_len, ring->dma_buf.va, ltoh32(ring->base_addr.high_addr), |
| ltoh32(ring->base_addr.low_addr))); |
| |
| return BCME_OK; |
| |
| #ifdef BCM_SECURE_DMA |
| free_dma_buf: |
| if (dma_buf_alloced == BCME_OK) { |
| dhd_dma_buf_free(dhd, &ring->dma_buf); |
| } |
| #endif /* BCM_SECURE_DMA */ |
| |
| return BCME_NOMEM; |
| |
| } /* dhd_prot_ring_attach */ |
| |
| |
| /** |
| * dhd_prot_ring_init - Post the common ring information to dongle. |
| * |
| * Used only for common rings. |
| * |
| * The flowrings information is passed via the create flowring control message |
| * (tx_flowring_create_request_t) sent over the H2D control submission common |
| * ring. |
| */ |
| static void |
| dhd_prot_ring_init(dhd_pub_t *dhd, msgbuf_ring_t *ring) |
| { |
| ring->wr = 0; |
| ring->rd = 0; |
| ring->curr_rd = 0; |
| |
| /* CAUTION: ring::base_addr already in Little Endian */ |
| dhd_bus_cmn_writeshared(dhd->bus, &ring->base_addr, |
| sizeof(sh_addr_t), RING_BUF_ADDR, ring->idx); |
| dhd_bus_cmn_writeshared(dhd->bus, &ring->max_items, |
| sizeof(uint16), RING_MAX_ITEMS, ring->idx); |
| dhd_bus_cmn_writeshared(dhd->bus, &ring->item_len, |
| sizeof(uint16), RING_ITEM_LEN, ring->idx); |
| |
| dhd_bus_cmn_writeshared(dhd->bus, &(ring->wr), |
| sizeof(uint16), RING_WR_UPD, ring->idx); |
| dhd_bus_cmn_writeshared(dhd->bus, &(ring->rd), |
| sizeof(uint16), RING_RD_UPD, ring->idx); |
| |
| /* ring inited */ |
| ring->inited = TRUE; |
| |
| } /* dhd_prot_ring_init */ |
| |
| |
| /** |
| * dhd_prot_ring_reset - bzero a ring's DMA-ble buffer and cache flush |
| * Reset WR and RD indices to 0. |
| */ |
| static void |
| dhd_prot_ring_reset(dhd_pub_t *dhd, msgbuf_ring_t *ring) |
| { |
| DHD_TRACE(("%s\n", __FUNCTION__)); |
| |
| dhd_dma_buf_reset(dhd, &ring->dma_buf); |
| |
| ring->rd = ring->wr = 0; |
| ring->curr_rd = 0; |
| } |
| |
| |
| /** |
| * dhd_prot_ring_detach - Detach the DMA-able buffer and any other objects |
| * hanging off the msgbuf_ring. |
| */ |
| static void |
| dhd_prot_ring_detach(dhd_pub_t *dhd, msgbuf_ring_t *ring) |
| { |
| dhd_prot_t *prot = dhd->prot; |
| ASSERT(ring); |
| |
| ring->inited = FALSE; |
| /* rd = ~0, wr = ring->rd - 1, max_items = 0, len_item = ~0 */ |
| |
| #ifdef BCM_SECURE_DMA |
| if (SECURE_DMA_ENAB(prot->osh)) { |
| SECURE_DMA_UNMAP_ALL(prot->osh, ring->dma_buf.secdma); |
| if (ring->dma_buf.secdma) { |
| MFREE(prot->osh, ring->dma_buf.secdma, sizeof(sec_cma_info_t)); |
| } |
| ring->dma_buf.secdma = NULL; |
| } |
| #endif /* BCM_SECURE_DMA */ |
| |
| /* If the DMA-able buffer was carved out of a pre-reserved contiguous |
| * memory, then simply stop using it. |
| */ |
| if (DHD_IS_FLOWRING(ring->idx) && (prot->flowrings_dma_buf.va)) { |
| (void)dhd_dma_buf_audit(dhd, &ring->dma_buf); |
| memset(&ring->dma_buf, 0, sizeof(dhd_dma_buf_t)); |
| } else { |
| dhd_dma_buf_free(dhd, &ring->dma_buf); |
| } |
| |
| } /* dhd_prot_ring_detach */ |
| |
| |
| /* |
| * +---------------------------------------------------------------------------- |
| * Flowring Pool |
| * |
| * Unlike common rings, which are attached very early on (dhd_prot_attach), |
| * flowrings are dynamically instantiated. Moreover, flowrings may require a |
| * larger DMA-able buffer. To avoid issues with fragmented cache coherent |
| * DMA-able memory, a pre-allocated pool of msgbuf_ring_t is allocated once. |
| * The DMA-able buffers are attached to these pre-allocated msgbuf_ring. |
| * |
| * Each DMA-able buffer may be allocated independently, or may be carved out |
| * of a single large contiguous region that is registered with the protocol |
| * layer into flowrings_dma_buf. On a 64bit platform, this contiguous region |
| * may not span 0x00000000FFFFFFFF (avoid dongle side 64bit ptr arithmetic). |
| * |
| * No flowring pool action is performed in dhd_prot_attach(), as the number |
| * of h2d rings is not yet known. |
| * |
| * In dhd_prot_init(), the dongle advertized number of h2d rings is used to |
| * determine the number of flowrings required, and a pool of msgbuf_rings are |
| * allocated and a DMA-able buffer (carved or allocated) is attached. |
| * See: dhd_prot_flowrings_pool_attach() |
| * |
| * A flowring msgbuf_ring object may be fetched from this pool during flowring |
| * creation, using the flowid. Likewise, flowrings may be freed back into the |
| * pool on flowring deletion. |
| * See: dhd_prot_flowrings_pool_fetch(), dhd_prot_flowrings_pool_release() |
| * |
| * In dhd_prot_detach(), the flowring pool is detached. The DMA-able buffers |
| * are detached (returned back to the carved region or freed), and the pool of |
| * msgbuf_ring and any objects allocated against it are freed. |
| * See: dhd_prot_flowrings_pool_detach() |
| * |
| * In dhd_prot_reset(), the flowring pool is simply reset by returning it to a |
| * state as-if upon an attach. All DMA-able buffers are retained. |
| * Following a dhd_prot_reset(), in a subsequent dhd_prot_init(), the flowring |
| * pool attach will notice that the pool persists and continue to use it. This |
| * will avoid the case of a fragmented DMA-able region. |
| * |
| * +---------------------------------------------------------------------------- |
| */ |
| |
| /* Fetch number of H2D flowrings given the total number of h2d rings */ |
| #define DHD_FLOWRINGS_POOL_TOTAL(h2d_rings_total) \ |
| ((h2d_rings_total) - BCMPCIE_H2D_COMMON_MSGRINGS) |
| |
| /* Conversion of a flowid to a flowring pool index */ |
| #define DHD_FLOWRINGS_POOL_OFFSET(flowid) \ |
| ((flowid) - BCMPCIE_H2D_COMMON_MSGRINGS) |
| |
| /* Fetch the msgbuf_ring_t from the flowring pool given a flowid */ |
| #define DHD_RING_IN_FLOWRINGS_POOL(prot, flowid) \ |
| (msgbuf_ring_t*)((prot)->h2d_flowrings_pool) + DHD_FLOWRINGS_POOL_OFFSET(flowid) |
| |
| /* Traverse each flowring in the flowring pool, assigning ring and flowid */ |
| #define FOREACH_RING_IN_FLOWRINGS_POOL(prot, ring, flowid) \ |
| for ((flowid) = DHD_FLOWRING_START_FLOWID, \ |
| (ring) = DHD_RING_IN_FLOWRINGS_POOL(prot, flowid); \ |
| (flowid) < (prot)->h2d_rings_total; \ |
| (flowid)++, (ring)++) |
| |
| /** |
| * dhd_prot_flowrings_pool_attach - Initialize a pool of flowring msgbuf_ring_t. |
| * |
| * Allocate a pool of msgbuf_ring along with DMA-able buffers for flowrings. |
| * Dongle includes common rings when it advertizes the number of H2D rings. |
| * Allocates a pool of msgbuf_ring_t and invokes dhd_prot_ring_attach to |
| * allocate the DMA-able buffer and initialize each msgbuf_ring_t object. |
| * |
| * dhd_prot_ring_attach is invoked to perform the actual initialization and |
| * attaching the DMA-able buffer. |
| * |
| * Later dhd_prot_flowrings_pool_fetch() may be used to fetch a preallocated and |
| * initialized msgbuf_ring_t object. |
| * |
| * returns BCME_OK=0 on success |
| * returns non-zero negative error value on failure. |
| */ |
| static int |
| dhd_prot_flowrings_pool_attach(dhd_pub_t *dhd) |
| { |
| uint16 flowid; |
| msgbuf_ring_t *ring; |
| uint16 h2d_flowrings_total; /* exclude H2D common rings */ |
| dhd_prot_t *prot = dhd->prot; |
| char ring_name[RING_NAME_MAX_LENGTH]; |
| |
| if (prot->h2d_flowrings_pool != NULL) { |
| return BCME_OK; /* dhd_prot_init rentry after a dhd_prot_reset */ |
| } |
| |
| ASSERT(prot->h2d_rings_total == 0); |
| |
| /* h2d_rings_total includes H2D common rings: ctrl and rxbuf subn */ |
| prot->h2d_rings_total = (uint16)dhd_bus_max_h2d_queues(dhd->bus); |
| |
| if (prot->h2d_rings_total < BCMPCIE_H2D_COMMON_MSGRINGS) { |
| DHD_ERROR(("%s: h2d_rings_total advertized as %u\n", |
| __FUNCTION__, prot->h2d_rings_total)); |
| return BCME_ERROR; |
| } |
| |
| /* Subtract number of H2D common rings, to determine number of flowrings */ |
| h2d_flowrings_total = DHD_FLOWRINGS_POOL_TOTAL(prot->h2d_rings_total); |
| |
| DHD_ERROR(("Attach flowrings pool for %d rings\n", h2d_flowrings_total)); |
| |
| /* Allocate pool of msgbuf_ring_t objects for all flowrings */ |
| prot->h2d_flowrings_pool = (msgbuf_ring_t *)MALLOCZ(prot->osh, |
| (h2d_flowrings_total * sizeof(msgbuf_ring_t))); |
| |
| if (prot->h2d_flowrings_pool == NULL) { |
| DHD_ERROR(("%s: flowrings pool for %d flowrings, alloc failure\n", |
| __FUNCTION__, h2d_flowrings_total)); |
| goto fail; |
| } |
| |
| /* Setup & Attach a DMA-able buffer to each flowring in the flowring pool */ |
| FOREACH_RING_IN_FLOWRINGS_POOL(prot, ring, flowid) { |
| snprintf(ring_name, sizeof(ring_name), "h2dflr_%03u", flowid); |
| ring_name[RING_NAME_MAX_LENGTH - 1] = '\0'; |
| if (dhd_prot_ring_attach(dhd, ring, ring_name, |
| H2DRING_TXPOST_MAX_ITEM, H2DRING_TXPOST_ITEMSIZE, |
| DHD_FLOWID_TO_RINGID(flowid)) != BCME_OK) { |
| goto attach_fail; |
| } |
| } |
| |
| return BCME_OK; |
| |
| attach_fail: |
| dhd_prot_flowrings_pool_detach(dhd); /* Free entire pool of flowrings */ |
| |
| fail: |
| prot->h2d_rings_total = 0; |
| return BCME_NOMEM; |
| |
| } /* dhd_prot_flowrings_pool_attach */ |
| |
| |
| /** |
| * dhd_prot_flowrings_pool_reset - Reset all msgbuf_ring_t objects in the pool. |
| * Invokes dhd_prot_ring_reset to perform the actual reset. |
| * |
| * The DMA-able buffer is not freed during reset and neither is the flowring |
| * pool freed. |
| * |
| * dhd_prot_flowrings_pool_reset will be invoked in dhd_prot_reset. Following |
| * the dhd_prot_reset, dhd_prot_init will be re-invoked, and the flowring pool |
| * from a previous flowring pool instantiation will be reused. |
| * |
| * This will avoid a fragmented DMA-able memory condition, if multiple |
| * dhd_prot_reset were invoked to reboot the dongle without a full detach/attach |
| * cycle. |
| */ |
| static void |
| dhd_prot_flowrings_pool_reset(dhd_pub_t *dhd) |
| { |
| uint16 flowid; |
| msgbuf_ring_t *ring; |
| dhd_prot_t *prot = dhd->prot; |
| |
| if (prot->h2d_flowrings_pool == NULL) { |
| ASSERT(prot->h2d_rings_total == 0); |
| return; |
| } |
| |
| /* Reset each flowring in the flowring pool */ |
| FOREACH_RING_IN_FLOWRINGS_POOL(prot, ring, flowid) { |
| dhd_prot_ring_reset(dhd, ring); |
| ring->inited = FALSE; |
| } |
| |
| /* Flowring pool state must be as-if dhd_prot_flowrings_pool_attach */ |
| } |
| |
| |
| /** |
| * dhd_prot_flowrings_pool_detach - Free pool of msgbuf_ring along with |
| * DMA-able buffers for flowrings. |
| * dhd_prot_ring_detach is invoked to free the DMA-able buffer and perform any |
| * de-initialization of each msgbuf_ring_t. |
| */ |
| static void |
| dhd_prot_flowrings_pool_detach(dhd_pub_t *dhd) |
| { |
| int flowid; |
| msgbuf_ring_t *ring; |
| int h2d_flowrings_total; /* exclude H2D common rings */ |
| dhd_prot_t *prot = dhd->prot; |
| |
| if (prot->h2d_flowrings_pool == NULL) { |
| ASSERT(prot->h2d_rings_total == 0); |
| return; |
| } |
| |
| /* Detach the DMA-able buffer for each flowring in the flowring pool */ |
| FOREACH_RING_IN_FLOWRINGS_POOL(prot, ring, flowid) { |
| dhd_prot_ring_detach(dhd, ring); |
| } |
| |
| h2d_flowrings_total = DHD_FLOWRINGS_POOL_TOTAL(prot->h2d_rings_total); |
| |
| MFREE(prot->osh, prot->h2d_flowrings_pool, |
| (h2d_flowrings_total * sizeof(msgbuf_ring_t))); |
| |
| prot->h2d_flowrings_pool = (msgbuf_ring_t*)NULL; |
| prot->h2d_rings_total = 0; |
| |
| } /* dhd_prot_flowrings_pool_detach */ |
| |
| |
| /** |
| * dhd_prot_flowrings_pool_fetch - Fetch a preallocated and initialized |
| * msgbuf_ring from the flowring pool, and assign it. |
| * |
| * Unlike common rings, which uses a dhd_prot_ring_init() to pass the common |
| * ring information to the dongle, a flowring's information is passed via a |
| * flowring create control message. |
| * |
| * Only the ring state (WR, RD) index are initialized. |
| */ |
| static msgbuf_ring_t * |
| dhd_prot_flowrings_pool_fetch(dhd_pub_t *dhd, uint16 flowid) |
| { |
| msgbuf_ring_t *ring; |
| dhd_prot_t *prot = dhd->prot; |
| |
| ASSERT(flowid >= DHD_FLOWRING_START_FLOWID); |
| ASSERT(flowid < prot->h2d_rings_total); |
| ASSERT(prot->h2d_flowrings_pool != NULL); |
| |
| ring = DHD_RING_IN_FLOWRINGS_POOL(prot, flowid); |
| |
| /* ASSERT flow_ring->inited == FALSE */ |
| |
| ring->wr = 0; |
| ring->rd = 0; |
| ring->curr_rd = 0; |
| ring->inited = TRUE; |
| |
| return ring; |
| } |
| |
| |
| /** |
| * dhd_prot_flowrings_pool_release - release a previously fetched flowring's |
| * msgbuf_ring back to the flow_ring pool. |
| */ |
| void |
| dhd_prot_flowrings_pool_release(dhd_pub_t *dhd, uint16 flowid, void *flow_ring) |
| { |
| msgbuf_ring_t *ring; |
| dhd_prot_t *prot = dhd->prot; |
| |
| ASSERT(flowid >= DHD_FLOWRING_START_FLOWID); |
| ASSERT(flowid < prot->h2d_rings_total); |
| ASSERT(prot->h2d_flowrings_pool != NULL); |
| |
| ring = DHD_RING_IN_FLOWRINGS_POOL(prot, flowid); |
| |
| ASSERT(ring == (msgbuf_ring_t*)flow_ring); |
| /* ASSERT flow_ring->inited == TRUE */ |
| |
| (void)dhd_dma_buf_audit(dhd, &ring->dma_buf); |
| |
| ring->wr = 0; |
| ring->rd = 0; |
| ring->inited = FALSE; |
| |
| ring->curr_rd = 0; |
| } |
| |
| |
| /* Assumes only one index is updated at a time */ |
| /* If exactly_nitems is true, this function will allocate space for nitems or fail */ |
| /* Exception: when wrap around is encountered, to prevent hangup (last nitems of ring buffer) */ |
| /* If exactly_nitems is false, this function will allocate space for nitems or less */ |
| static void *BCMFASTPATH |
| dhd_prot_get_ring_space(msgbuf_ring_t *ring, uint16 nitems, uint16 * alloced, |
| bool exactly_nitems) |
| { |
| void *ret_ptr = NULL; |
| uint16 ring_avail_cnt; |
| |
| ASSERT(nitems <= ring->max_items); |
| |
| ring_avail_cnt = CHECK_WRITE_SPACE(ring->rd, ring->wr, ring->max_items); |
| |
| if ((ring_avail_cnt == 0) || |
| (exactly_nitems && (ring_avail_cnt < nitems) && |
| ((ring->max_items - ring->wr) >= nitems))) { |
| DHD_INFO(("Space not available: ring %s items %d write %d read %d\n", |
| ring->name, nitems, ring->wr, ring->rd)); |
| return NULL; |
| } |
| *alloced = MIN(nitems, ring_avail_cnt); |
| |
| /* Return next available space */ |
| ret_ptr = (char *)DHD_RING_BGN_VA(ring) + (ring->wr * ring->item_len); |
| |
| /* Update write index */ |
| if ((ring->wr + *alloced) == ring->max_items) { |
| ring->wr = 0; |
| } else if ((ring->wr + *alloced) < ring->max_items) { |
| ring->wr += *alloced; |
| } else { |
| /* Should never hit this */ |
| ASSERT(0); |
| return NULL; |
| } |
| |
| return ret_ptr; |
| } /* dhd_prot_get_ring_space */ |
| |
| |
| /** |
| * dhd_prot_ring_write_complete - Host updates the new WR index on producing |
| * new messages in a H2D ring. The messages are flushed from cache prior to |
| * posting the new WR index. The new WR index will be updated in the DMA index |
| * array or directly in the dongle's ring state memory. |
| * A PCIE doorbell will be generated to wake up the dongle. |
| */ |
| static void BCMFASTPATH |
| dhd_prot_ring_write_complete(dhd_pub_t *dhd, msgbuf_ring_t * ring, void* p, |
| uint16 nitems) |
| { |
| dhd_prot_t *prot = dhd->prot; |
| |
| /* cache flush */ |
| OSL_CACHE_FLUSH(p, ring->item_len * nitems); |
| |
| if (DMA_INDX_ENAB(dhd->dma_h2d_ring_upd_support)) { |
| dhd_prot_dma_indx_set(dhd, ring->wr, |
| H2D_DMA_INDX_WR_UPD, ring->idx); |
| } else { |
| dhd_bus_cmn_writeshared(dhd->bus, &(ring->wr), |
| sizeof(uint16), RING_WR_UPD, ring->idx); |
| } |
| |
| /* raise h2d interrupt */ |
| prot->mb_ring_fn(dhd->bus, ring->wr); |
| } |
| |
| |
| /** |
| * dhd_prot_upd_read_idx - Host updates the new RD index on consuming messages |
| * from a D2H ring. The new RD index will be updated in the DMA Index array or |
| * directly in dongle's ring state memory. |
| */ |
| static void |
| dhd_prot_upd_read_idx(dhd_pub_t *dhd, msgbuf_ring_t * ring) |
| { |
| /* update read index */ |
| /* If dma'ing h2d indices supported |
| * update the r -indices in the |
| * host memory o/w in TCM |
| */ |
| if (DMA_INDX_ENAB(dhd->dma_h2d_ring_upd_support)) { |
| dhd_prot_dma_indx_set(dhd, ring->rd, |
| D2H_DMA_INDX_RD_UPD, ring->idx); |
| } else { |
| dhd_bus_cmn_writeshared(dhd->bus, &(ring->rd), |
| sizeof(uint16), RING_RD_UPD, ring->idx); |
| } |
| } |
| |
| |
| /** |
| * dhd_prot_dma_indx_set - set a new WR or RD index in the DMA index array. |
| * Dongle will DMA the entire array (if DMA_INDX feature is enabled). |
| * See dhd_prot_dma_indx_init() |
| */ |
| static void |
| dhd_prot_dma_indx_set(dhd_pub_t *dhd, uint16 new_index, uint8 type, uint16 ringid) |
| { |
| uint8 *ptr; |
| uint16 offset; |
| dhd_prot_t *prot = dhd->prot; |
| |
| switch (type) { |
| case H2D_DMA_INDX_WR_UPD: |
| ptr = (uint8 *)(prot->h2d_dma_indx_wr_buf.va); |
| offset = DHD_H2D_RING_OFFSET(ringid); |
| break; |
| |
| case D2H_DMA_INDX_RD_UPD: |
| ptr = (uint8 *)(prot->d2h_dma_indx_rd_buf.va); |
| offset = DHD_D2H_RING_OFFSET(ringid); |
| break; |
| |
| default: |
| DHD_ERROR(("%s: Invalid option for DMAing read/write index\n", |
| __FUNCTION__)); |
| return; |
| } |
| |
| ASSERT(prot->rw_index_sz != 0); |
| ptr += offset * prot->rw_index_sz; |
| |
| *(uint16*)ptr = htol16(new_index); |
| |
| OSL_CACHE_FLUSH((void *)ptr, prot->rw_index_sz); |
| |
| DHD_TRACE(("%s: data %d type %d ringid %d ptr 0x%p offset %d\n", |
| __FUNCTION__, new_index, type, ringid, ptr, offset)); |
| |
| } /* dhd_prot_dma_indx_set */ |
| |
| |
| /** |
| * dhd_prot_dma_indx_get - Fetch a WR or RD index from the dongle DMA-ed index |
| * array. |
| * Dongle DMAes an entire array to host memory (if the feature is enabled). |
| * See dhd_prot_dma_indx_init() |
| */ |
| static uint16 |
| dhd_prot_dma_indx_get(dhd_pub_t *dhd, uint8 type, uint16 ringid) |
| { |
| uint8 *ptr; |
| uint16 data; |
| uint16 offset; |
| dhd_prot_t *prot = dhd->prot; |
| |
| switch (type) { |
| case H2D_DMA_INDX_WR_UPD: |
| ptr = (uint8 *)(prot->h2d_dma_indx_wr_buf.va); |
| offset = DHD_H2D_RING_OFFSET(ringid); |
| break; |
| |
| case H2D_DMA_INDX_RD_UPD: |
| ptr = (uint8 *)(prot->h2d_dma_indx_rd_buf.va); |
| offset = DHD_H2D_RING_OFFSET(ringid); |
| break; |
| |
| case D2H_DMA_INDX_WR_UPD: |
| ptr = (uint8 *)(prot->d2h_dma_indx_wr_buf.va); |
| offset = DHD_D2H_RING_OFFSET(ringid); |
| break; |
| |
| case D2H_DMA_INDX_RD_UPD: |
| ptr = (uint8 *)(prot->d2h_dma_indx_rd_buf.va); |
| offset = DHD_D2H_RING_OFFSET(ringid); |
| break; |
| |
| default: |
| DHD_ERROR(("%s: Invalid option for DMAing read/write index\n", |
| __FUNCTION__)); |
| return 0; |
| } |
| |
| ASSERT(prot->rw_index_sz != 0); |
| ptr += offset * prot->rw_index_sz; |
| |
| OSL_CACHE_INV((void *)ptr, prot->rw_index_sz); |
| |
| data = LTOH16(*((uint16*)ptr)); |
| |
| DHD_TRACE(("%s: data %d type %d ringid %d ptr 0x%p offset %d\n", |
| __FUNCTION__, data, type, ringid, ptr, offset)); |
| |
| return (data); |
| |
| } /* dhd_prot_dma_indx_get */ |
| |
| /** |
| * An array of DMA read/write indices, containing information about host rings, can be maintained |
| * either in host memory or in device memory, dependent on preprocessor options. This function is, |
| * dependent on these options, called during driver initialization. It reserves and initializes |
| * blocks of DMA'able host memory containing an array of DMA read or DMA write indices. The physical |
| * address of these host memory blocks are communicated to the dongle later on. By reading this host |
| * memory, the dongle learns about the state of the host rings. |
| */ |
| |
| static INLINE int |
| dhd_prot_dma_indx_alloc(dhd_pub_t *dhd, uint8 type, |
| dhd_dma_buf_t *dma_buf, uint32 bufsz) |
| { |
| int rc; |
| |
| if ((dma_buf->len == bufsz) || (dma_buf->va != NULL)) |
| return BCME_OK; |
| |
| rc = dhd_dma_buf_alloc(dhd, dma_buf, bufsz); |
| |
| return rc; |
| } |
| |
| int |
| dhd_prot_dma_indx_init(dhd_pub_t *dhd, uint32 rw_index_sz, uint8 type, uint32 length) |
| { |
| uint32 bufsz; |
| dhd_prot_t *prot = dhd->prot; |
| dhd_dma_buf_t *dma_buf; |
| |
| if (prot == NULL) { |
| DHD_ERROR(("prot is not inited\n")); |
| return BCME_ERROR; |
| } |
| |
| /* Dongle advertizes 2B or 4B RW index size */ |
| ASSERT(rw_index_sz != 0); |
| prot->rw_index_sz = rw_index_sz; |
| |
| bufsz = rw_index_sz * length; |
| |
| switch (type) { |
| case H2D_DMA_INDX_WR_BUF: |
| dma_buf = &prot->h2d_dma_indx_wr_buf; |
| if (dhd_prot_dma_indx_alloc(dhd, type, dma_buf, bufsz)) { |
| goto ret_no_mem; |
| } |
| DHD_ERROR(("H2D DMA WR INDX : array size %d = %d * %d\n", |
| dma_buf->len, rw_index_sz, length)); |
| break; |
| |
| case H2D_DMA_INDX_RD_BUF: |
| dma_buf = &prot->h2d_dma_indx_rd_buf; |
| if (dhd_prot_dma_indx_alloc(dhd, type, dma_buf, bufsz)) { |
| goto ret_no_mem; |
| } |
| DHD_ERROR(("H2D DMA RD INDX : array size %d = %d * %d\n", |
| dma_buf->len, rw_index_sz, length)); |
| break; |
| |
| case D2H_DMA_INDX_WR_BUF: |
| dma_buf = &prot->d2h_dma_indx_wr_buf; |
| if (dhd_prot_dma_indx_alloc(dhd, type, dma_buf, bufsz)) { |
| goto ret_no_mem; |
| } |
| DHD_ERROR(("D2H DMA WR INDX : array size %d = %d * %d\n", |
| dma_buf->len, rw_index_sz, length)); |
| break; |
| |
| case D2H_DMA_INDX_RD_BUF: |
| dma_buf = &prot->d2h_dma_indx_rd_buf; |
| if (dhd_prot_dma_indx_alloc(dhd, type, dma_buf, bufsz)) { |
| goto ret_no_mem; |
| } |
| DHD_ERROR(("D2H DMA RD INDX : array size %d = %d * %d\n", |
| dma_buf->len, rw_index_sz, length)); |
| break; |
| |
| default: |
| DHD_ERROR(("%s: Unexpected option\n", __FUNCTION__)); |
| return BCME_BADOPTION; |
| } |
| |
| return BCME_OK; |
| |
| ret_no_mem: |
| DHD_ERROR(("%s: dhd_prot_dma_indx_alloc type %d buf_sz %d failure\n", |
| __FUNCTION__, type, bufsz)); |
| return BCME_NOMEM; |
| |
| } /* dhd_prot_dma_indx_init */ |
| |
| |
| /** |
| * Called on checking for 'completion' messages from the dongle. Returns next host buffer to read |
| * from, or NULL if there are no more messages to read. |
| */ |
| static uint8* |
| dhd_prot_get_read_addr(dhd_pub_t *dhd, msgbuf_ring_t *ring, uint32 *available_len) |
| { |
| uint16 wr; |
| uint16 rd; |
| uint16 depth; |
| uint16 items; |
| void *read_addr = NULL; /* address of next msg to be read in ring */ |
| uint16 d2h_wr = 0; |
| |
| DHD_TRACE(("%s: d2h_dma_indx_rd_buf %p, d2h_dma_indx_wr_buf %p\n", |
| __FUNCTION__, (uint32 *)(dhd->prot->d2h_dma_indx_rd_buf.va), |
| (uint32 *)(dhd->prot->d2h_dma_indx_wr_buf.va))); |
| |
| /* Remember the read index in a variable. |
| * This is becuase ring->rd gets updated in the end of this function |
| * So if we have to print the exact read index from which the |
| * message is read its not possible. |
| */ |
| ring->curr_rd = ring->rd; |
| |
| /* update write pointer */ |
| if (DMA_INDX_ENAB(dhd->dma_d2h_ring_upd_support)) { |
| /* DMAing write/read indices supported */ |
| d2h_wr = dhd_prot_dma_indx_get(dhd, D2H_DMA_INDX_WR_UPD, ring->idx); |
| ring->wr = d2h_wr; |
| } else { |
| dhd_bus_cmn_readshared(dhd->bus, &(ring->wr), RING_WR_UPD, ring->idx); |
| } |
| |
| wr = ring->wr; |
| rd = ring->rd; |
| depth = ring->max_items; |
| |
| /* check for avail space, in number of ring items */ |
| items = READ_AVAIL_SPACE(wr, rd, depth); |
| if (items == 0) { |
| return NULL; |
| } |
| |
| ASSERT(items < ring->max_items); |
| |
| /* |
| * Note that there are builds where Assert translates to just printk |
| * so, even if we had hit this condition we would never halt. Now |
| * dhd_prot_process_msgtype can get into an big loop if this |
| * happens. |
| */ |
| if (items >= ring->max_items) { |
| DHD_ERROR(("\r\n======================= \r\n")); |
| DHD_ERROR(("%s(): ring %p, ring->name %s, ring->max_items %d, items %d \r\n", |
| __FUNCTION__, ring, ring->name, ring->max_items, items)); |
| DHD_ERROR(("wr: %d, rd: %d, depth: %d \r\n", wr, rd, depth)); |
| DHD_ERROR(("dhd->busstate %d bus->suspended %d bus->wait_for_d3_ack %d \r\n", |
| dhd->busstate, dhd->bus->suspended, dhd->bus->wait_for_d3_ack)); |
| DHD_ERROR(("\r\n======================= \r\n")); |
| |
| *available_len = 0; |
| return NULL; |
| } |
| |
| /* if space is available, calculate address to be read */ |
| read_addr = (char*)ring->dma_buf.va + (rd * ring->item_len); |
| |
| /* update read pointer */ |
| if ((ring->rd + items) >= ring->max_items) { |
| ring->rd = 0; |
| } else { |
| ring->rd += items; |
| } |
| |
| ASSERT(ring->rd < ring->max_items); |
| |
| /* convert items to bytes : available_len must be 32bits */ |
| *available_len = (uint32)(items * ring->item_len); |
| |
| OSL_CACHE_INV(read_addr, *available_len); |
| |
| /* return read address */ |
| return read_addr; |
| |
| } /* dhd_prot_get_read_addr */ |
| |
| /** Creates a flow ring and informs dongle of this event */ |
| int |
| dhd_prot_flow_ring_create(dhd_pub_t *dhd, flow_ring_node_t *flow_ring_node) |
| { |
| tx_flowring_create_request_t *flow_create_rqst; |
| msgbuf_ring_t *flow_ring; |
| dhd_prot_t *prot = dhd->prot; |
| unsigned long flags; |
| uint16 alloced = 0; |
| msgbuf_ring_t *ctrl_ring = &prot->h2dring_ctrl_subn; |
| |
| /* Fetch a pre-initialized msgbuf_ring from the flowring pool */ |
| flow_ring = dhd_prot_flowrings_pool_fetch(dhd, flow_ring_node->flowid); |
| if (flow_ring == NULL) { |
| DHD_ERROR(("%s: dhd_prot_flowrings_pool_fetch TX Flowid %d failed\n", |
| __FUNCTION__, flow_ring_node->flowid)); |
| return BCME_NOMEM; |
| } |
| |
| DHD_GENERAL_LOCK(dhd, flags); |
| |
| /* Request for ctrl_ring buffer space */ |
| flow_create_rqst = (tx_flowring_create_request_t *) |
| dhd_prot_alloc_ring_space(dhd, ctrl_ring, 1, &alloced, FALSE); |
| |
| if (flow_create_rqst == NULL) { |
| dhd_prot_flowrings_pool_release(dhd, flow_ring_node->flowid, flow_ring); |
| DHD_ERROR(("%s: Flow Create Req flowid %d - failure ring space\n", |
| __FUNCTION__, flow_ring_node->flowid)); |
| DHD_GENERAL_UNLOCK(dhd, flags); |
| return BCME_NOMEM; |
| } |
| |
| flow_ring_node->prot_info = (void *)flow_ring; |
| |
| /* Common msg buf hdr */ |
| flow_create_rqst->msg.msg_type = MSG_TYPE_FLOW_RING_CREATE; |
| flow_create_rqst->msg.if_id = (uint8)flow_ring_node->flow_info.ifindex; |
| flow_create_rqst->msg.request_id = htol32(0); /* TBD */ |
| |
| flow_create_rqst->msg.epoch = ctrl_ring->seqnum % H2D_EPOCH_MODULO; |
| ctrl_ring->seqnum++; |
| |
| /* Update flow create message */ |
| flow_create_rqst->tid = flow_ring_node->flow_info.tid; |
| flow_create_rqst->flow_ring_id = htol16((uint16)flow_ring_node->flowid); |
| memcpy(flow_create_rqst->sa, flow_ring_node->flow_info.sa, sizeof(flow_create_rqst->sa)); |
| memcpy(flow_create_rqst->da, flow_ring_node->flow_info.da, sizeof(flow_create_rqst->da)); |
| /* CAUTION: ring::base_addr already in Little Endian */ |
| flow_create_rqst->flow_ring_ptr.low_addr = flow_ring->base_addr.low_addr; |
| flow_create_rqst->flow_ring_ptr.high_addr = flow_ring->base_addr.high_addr; |
| flow_create_rqst->max_items = htol16(H2DRING_TXPOST_MAX_ITEM); |
| flow_create_rqst->len_item = htol16(H2DRING_TXPOST_ITEMSIZE); |
| DHD_ERROR(("%s: Send Flow Create Req flow ID %d for peer " MACDBG |
| " prio %d ifindex %d\n", __FUNCTION__, flow_ring_node->flowid, |
| MAC2STRDBG(flow_ring_node->flow_info.da), flow_ring_node->flow_info.tid, |
| flow_ring_node->flow_info.ifindex)); |
| |
| /* Update the flow_ring's WRITE index */ |
| if (DMA_INDX_ENAB(dhd->dma_h2d_ring_upd_support)) { |
| dhd_prot_dma_indx_set(dhd, flow_ring->wr, |
| H2D_DMA_INDX_WR_UPD, flow_ring->idx); |
| } else { |
| dhd_bus_cmn_writeshared(dhd->bus, &(flow_ring->wr), |
| sizeof(uint16), RING_WR_UPD, flow_ring->idx); |
| } |
| |
| /* update control subn ring's WR index and ring doorbell to dongle */ |
| dhd_prot_ring_write_complete(dhd, ctrl_ring, flow_create_rqst, 1); |
| |
| DHD_GENERAL_UNLOCK(dhd, flags); |
| |
| return BCME_OK; |
| } /* dhd_prot_flow_ring_create */ |
| |
| /** called on receiving MSG_TYPE_FLOW_RING_CREATE_CMPLT message from dongle */ |
| static void |
| dhd_prot_flow_ring_create_response_process(dhd_pub_t *dhd, void *msg) |
| { |
| tx_flowring_create_response_t *flow_create_resp = (tx_flowring_create_response_t *)msg; |
| |
| DHD_ERROR(("%s: Flow Create Response status = %d Flow %d\n", __FUNCTION__, |
| ltoh16(flow_create_resp->cmplt.status), |
| ltoh16(flow_create_resp->cmplt.flow_ring_id))); |
| |
| dhd_bus_flow_ring_create_response(dhd->bus, |
| ltoh16(flow_create_resp->cmplt.flow_ring_id), |
| ltoh16(flow_create_resp->cmplt.status)); |
| } |
| |
| /** called on e.g. flow ring delete */ |
| void dhd_prot_clean_flow_ring(dhd_pub_t *dhd, void *msgbuf_flow_info) |
| { |
| msgbuf_ring_t *flow_ring = (msgbuf_ring_t *)msgbuf_flow_info; |
| dhd_prot_ring_detach(dhd, flow_ring); |
| DHD_INFO(("%s Cleaning up Flow \n", __FUNCTION__)); |
| } |
| |
| void dhd_prot_print_flow_ring(dhd_pub_t *dhd, void *msgbuf_flow_info, |
| struct bcmstrbuf *strbuf, const char * fmt) |
| { |
| const char *default_fmt = "RD %d WR %d BASE(VA) %p BASE(PA) %x:%x SIZE %d\n"; |
| msgbuf_ring_t *flow_ring = (msgbuf_ring_t *)msgbuf_flow_info; |
| uint16 rd, wr; |
| uint32 dma_buf_len = flow_ring->max_items * flow_ring->item_len; |
| |
| if (fmt == NULL) { |
| fmt = default_fmt; |
| } |
| dhd_bus_cmn_readshared(dhd->bus, &rd, RING_RD_UPD, flow_ring->idx); |
| dhd_bus_cmn_readshared(dhd->bus, &wr, RING_WR_UPD, flow_ring->idx); |
| bcm_bprintf(strbuf, fmt, rd, wr, flow_ring->dma_buf.va, |
| ltoh32(flow_ring->base_addr.high_addr), |
| ltoh32(flow_ring->base_addr.low_addr), dma_buf_len); |
| } |
| |
| void dhd_prot_print_info(dhd_pub_t *dhd, struct bcmstrbuf *strbuf) |
| { |
| dhd_prot_t *prot = dhd->prot; |
| bcm_bprintf(strbuf, |
| "%8s %4s %4s %5s %17s %17s %7s\n", |
| "Type", "RBP", "RD", "WR", "BASE(VA)", "BASE(PA)", "SIZE"); |
| bcm_bprintf(strbuf, "%8s %4s", "CtrlPost", "NA"); |
| dhd_prot_print_flow_ring(dhd, &prot->h2dring_ctrl_subn, strbuf, |
| "%5d %5d %17p %8x:%8x %7d\n"); |
| bcm_bprintf(strbuf, "%8s %4s", "CtrlCpl", "NA"); |
| dhd_prot_print_flow_ring(dhd, &prot->d2hring_ctrl_cpln, strbuf, |
| "%5d %5d %17p %8x:%8x %7d\n"); |
| bcm_bprintf(strbuf, "%8s %4d", "RxPost", prot->rxbufpost); |
| dhd_prot_print_flow_ring(dhd, &prot->h2dring_rxp_subn, strbuf, |
| "%5d %5d %17p %8x:%8x %7d\n"); |
| bcm_bprintf(strbuf, "%8s %4s", "RxCpl", "NA"); |
| dhd_prot_print_flow_ring(dhd, &prot->d2hring_rx_cpln, strbuf, |
| "%5d %5d %17p %8x:%8x %7d\n"); |
| bcm_bprintf(strbuf, "%8s %4s", "TxCpl", "NA"); |
| dhd_prot_print_flow_ring(dhd, &prot->d2hring_tx_cpln, strbuf, |
| "%5d %5d %17p %8x:%8x %7d\n"); |
| bcm_bprintf(strbuf, "active_tx_count %d pktidmap_avail %d\n", |
| dhd->prot->active_tx_count, |
| DHD_PKTID_AVAIL(dhd->prot->pktid_map_handle)); |
| } |
| |
| int |
| dhd_prot_flow_ring_delete(dhd_pub_t *dhd, flow_ring_node_t *flow_ring_node) |
| { |
| tx_flowring_delete_request_t *flow_delete_rqst; |
| dhd_prot_t *prot = dhd->prot; |
| unsigned long flags; |
| uint16 alloced = 0; |
| msgbuf_ring_t *ring = &prot->h2dring_ctrl_subn; |
| |
| DHD_GENERAL_LOCK(dhd, flags); |
| |
| /* Request for ring buffer space */ |
| flow_delete_rqst = (tx_flowring_delete_request_t *) |
| dhd_prot_alloc_ring_space(dhd, ring, 1, &alloced, FALSE); |
| |
| if (flow_delete_rqst == NULL) { |
| DHD_GENERAL_UNLOCK(dhd, flags); |
| DHD_ERROR(("%s: Flow Delete Req - failure ring space\n", __FUNCTION__)); |
| return BCME_NOMEM; |
| } |
| |
| /* Common msg buf hdr */ |
| flow_delete_rqst->msg.msg_type = MSG_TYPE_FLOW_RING_DELETE; |
| flow_delete_rqst->msg.if_id = (uint8)flow_ring_node->flow_info.ifindex; |
| flow_delete_rqst->msg.request_id = htol32(0); /* TBD */ |
| |
| flow_delete_rqst->msg.epoch = ring->seqnum % H2D_EPOCH_MODULO; |
| ring->seqnum++; |
| |
| /* Update Delete info */ |
| flow_delete_rqst->flow_ring_id = htol16((uint16)flow_ring_node->flowid); |
| flow_delete_rqst->reason = htol16(BCME_OK); |
| |
| DHD_ERROR(("%s: Send Flow Delete Req RING ID %d for peer " MACDBG |
| " prio %d ifindex %d\n", __FUNCTION__, flow_ring_node->flowid, |
| MAC2STRDBG(flow_ring_node->flow_info.da), flow_ring_node->flow_info.tid, |
| flow_ring_node->flow_info.ifindex)); |
| |
| /* update ring's WR index and ring doorbell to dongle */ |
| dhd_prot_ring_write_complete(dhd, ring, flow_delete_rqst, 1); |
| DHD_GENERAL_UNLOCK(dhd, flags); |
| |
| return BCME_OK; |
| } |
| |
| static void |
| dhd_prot_flow_ring_delete_response_process(dhd_pub_t *dhd, void *msg) |
| { |
| tx_flowring_delete_response_t *flow_delete_resp = (tx_flowring_delete_response_t *)msg; |
| |
| DHD_ERROR(("%s: Flow Delete Response status = %d Flow %d\n", __FUNCTION__, |
| flow_delete_resp->cmplt.status, flow_delete_resp->cmplt.flow_ring_id)); |
| |
| dhd_bus_flow_ring_delete_response(dhd->bus, flow_delete_resp->cmplt.flow_ring_id, |
| flow_delete_resp->cmplt.status); |
| } |
| |
| int |
| dhd_prot_flow_ring_flush(dhd_pub_t *dhd, flow_ring_node_t *flow_ring_node) |
| { |
| tx_flowring_flush_request_t *flow_flush_rqst; |
| dhd_prot_t *prot = dhd->prot; |
| unsigned long flags; |
| uint16 alloced = 0; |
| msgbuf_ring_t *ring = &prot->h2dring_ctrl_subn; |
| |
| DHD_GENERAL_LOCK(dhd, flags); |
| |
| /* Request for ring buffer space */ |
| flow_flush_rqst = (tx_flowring_flush_request_t *) |
| dhd_prot_alloc_ring_space(dhd, ring, 1, &alloced, FALSE); |
| if (flow_flush_rqst == NULL) { |
| DHD_GENERAL_UNLOCK(dhd, flags); |
| DHD_ERROR(("%s: Flow Flush Req - failure ring space\n", __FUNCTION__)); |
| return BCME_NOMEM; |
| } |
| |
| /* Common msg buf hdr */ |
| flow_flush_rqst->msg.msg_type = MSG_TYPE_FLOW_RING_FLUSH; |
| flow_flush_rqst->msg.if_id = (uint8)flow_ring_node->flow_info.ifindex; |
| flow_flush_rqst->msg.request_id = htol32(0); /* TBD */ |
| |
| flow_flush_rqst->msg.epoch = ring->seqnum % H2D_EPOCH_MODULO; |
| ring->seqnum++; |
| |
| flow_flush_rqst->flow_ring_id = htol16((uint16)flow_ring_node->flowid); |
| flow_flush_rqst->reason = htol16(BCME_OK); |
| |
| DHD_INFO(("%s: Send Flow Flush Req\n", __FUNCTION__)); |
| |
| /* update ring's WR index and ring doorbell to dongle */ |
| dhd_prot_ring_write_complete(dhd, ring, flow_flush_rqst, 1); |
| DHD_GENERAL_UNLOCK(dhd, flags); |
| |
| return BCME_OK; |
| } /* dhd_prot_flow_ring_flush */ |
| |
| static void |
| dhd_prot_flow_ring_flush_response_process(dhd_pub_t *dhd, void *msg) |
| { |
| tx_flowring_flush_response_t *flow_flush_resp = (tx_flowring_flush_response_t *)msg; |
| |
| DHD_INFO(("%s: Flow Flush Response status = %d\n", __FUNCTION__, |
| flow_flush_resp->cmplt.status)); |
| |
| dhd_bus_flow_ring_flush_response(dhd->bus, flow_flush_resp->cmplt.flow_ring_id, |
| flow_flush_resp->cmplt.status); |
| } |
| |
| /** |
| * Request dongle to configure soft doorbells for D2H rings. Host populated soft |
| * doorbell information is transferred to dongle via the d2h ring config control |
| * message. |
| */ |
| void |
| dhd_msgbuf_ring_config_d2h_soft_doorbell(dhd_pub_t *dhd) |
| { |
| #if defined(DHD_D2H_SOFT_DOORBELL_SUPPORT) |
| uint16 ring_idx; |
| uint8 *msg_next; |
| void *msg_start; |
| uint16 alloced = 0; |
| unsigned long flags; |
| dhd_prot_t *prot = dhd->prot; |
| ring_config_req_t *ring_config_req; |
| bcmpcie_soft_doorbell_t *soft_doorbell; |
| msgbuf_ring_t *ctrl_ring = &prot->h2dring_ctrl_subn; |
| const uint16 d2h_rings = BCMPCIE_D2H_COMMON_MSGRINGS; |
| |
| /* Claim space for d2h_ring number of d2h_ring_config_req_t messages */ |
| DHD_GENERAL_LOCK(dhd, flags); |
| msg_start = dhd_prot_alloc_ring_space(dhd, ctrl_ring, d2h_rings, &alloced, TRUE); |
| |
| if (msg_start == NULL) { |
| DHD_ERROR(("%s Msgbuf no space for %d D2H ring config soft doorbells\n", |
| __FUNCTION__, d2h_rings)); |
| DHD_GENERAL_UNLOCK(dhd, flags); |
| return; |
| } |
| |
| msg_next = (uint8*)msg_start; |
| |
| for (ring_idx = 0; ring_idx < d2h_rings; ring_idx++) { |
| |
| /* position the ring_config_req into the ctrl subm ring */ |
| ring_config_req = (ring_config_req_t *)msg_next; |
| |
| /* Common msg header */ |
| ring_config_req->msg.msg_type = MSG_TYPE_D2H_RING_CONFIG; |
| ring_config_req->msg.if_id = 0; |
| ring_config_req->msg.flags = 0; |
| |
| ring_config_req->msg.epoch = ctrl_ring->seqnum % H2D_EPOCH_MODULO; |
| ctrl_ring->seqnum++; |
| |
| ring_config_req->msg.request_id = htol32(DHD_FAKE_PKTID); /* unused */ |
| |
| /* Ring Config subtype and d2h ring_id */ |
| ring_config_req->subtype = htol16(D2H_RING_CONFIG_SUBTYPE_SOFT_DOORBELL); |
| ring_config_req->ring_id = htol16(DHD_D2H_RINGID(ring_idx)); |
| |
| /* Host soft doorbell configuration */ |
| soft_doorbell = &prot->soft_doorbell[ring_idx]; |
| |
| ring_config_req->soft_doorbell.value = htol32(soft_doorbell->value); |
| ring_config_req->soft_doorbell.haddr.high = |
| htol32(soft_doorbell->haddr.high); |
| ring_config_req->soft_doorbell.haddr.low = |
| htol32(soft_doorbell->haddr.low); |
| ring_config_req->soft_doorbell.items = htol16(soft_doorbell->items); |
| ring_config_req->soft_doorbell.msecs = htol16(soft_doorbell->msecs); |
| |
| DHD_INFO(("%s: Soft doorbell haddr 0x%08x 0x%08x value 0x%08x\n", |
| __FUNCTION__, ring_config_req->soft_doorbell.haddr.high, |
| ring_config_req->soft_doorbell.haddr.low, |
| ring_config_req->soft_doorbell.value)); |
| |
| msg_next = msg_next + ctrl_ring->item_len; |
| } |
| |
| /* update control subn ring's WR index and ring doorbell to dongle */ |
| dhd_prot_ring_write_complete(dhd, ctrl_ring, msg_start, d2h_rings); |
| DHD_GENERAL_UNLOCK(dhd, flags); |
| #endif /* DHD_D2H_SOFT_DOORBELL_SUPPORT */ |
| } |
| |
| static void |
| dhd_prot_d2h_ring_config_cmplt_process(dhd_pub_t *dhd, void *msg) |
| { |
| DHD_INFO(("%s: Ring Config Response - status %d ringid %d\n", |
| __FUNCTION__, ltoh16(((ring_config_resp_t *)msg)->compl_hdr.status), |
| ltoh16(((ring_config_resp_t *)msg)->compl_hdr.flow_ring_id))); |
| } |
| |
| int |
| dhd_prot_debug_info_print(dhd_pub_t *dhd) |
| { |
| dhd_prot_t *prot = dhd->prot; |
| msgbuf_ring_t *ring; |
| uint16 rd, wr; |
| uint32 intstatus = 0; |
| uint32 intmask = 0; |
| uint32 mbintstatus = 0; |
| uint32 d2h_mb_data = 0; |
| uint32 dma_buf_len; |
| |
| DHD_ERROR(("\n ------- DUMPING IOCTL RING RD WR Pointers ------- \r\n")); |
| |
| ring = &prot->h2dring_ctrl_subn; |
| dma_buf_len = ring->max_items * ring->item_len; |
| DHD_ERROR(("CtrlPost: Mem Info: BASE(VA) %p BASE(PA) %x:%x SIZE %d \r\n", |
| ring->dma_buf.va, ltoh32(ring->base_addr.high_addr), |
| ltoh32(ring->base_addr.low_addr), dma_buf_len)); |
| DHD_ERROR(("CtrlPost: From Host mem: RD: %d WR %d \r\n", ring->rd, ring->wr)); |
| dhd_bus_cmn_readshared(dhd->bus, &rd, RING_RD_UPD, ring->idx); |
| dhd_bus_cmn_readshared(dhd->bus, &wr, RING_WR_UPD, ring->idx); |
| DHD_ERROR(("CtrlPost: From Shared Mem: RD: %d WR %d \r\n", rd, wr)); |
| |
| ring = &prot->d2hring_ctrl_cpln; |
| dma_buf_len = ring->max_items * ring->item_len; |
| DHD_ERROR(("CtrlCpl: Mem Info: BASE(VA) %p BASE(PA) %x:%x SIZE %d \r\n", |
| ring->dma_buf.va, ltoh32(ring->base_addr.high_addr), |
| ltoh32(ring->base_addr.low_addr), dma_buf_len)); |
| DHD_ERROR(("CtrlCpl: From Host mem: RD: %d WR %d \r\n", ring->rd, ring->wr)); |
| dhd_bus_cmn_readshared(dhd->bus, &rd, RING_RD_UPD, ring->idx); |
| dhd_bus_cmn_readshared(dhd->bus, &wr, RING_WR_UPD, ring->idx); |
| DHD_ERROR(("CtrlCpl: From Shared Mem: RD: %d WR %d \r\n", rd, wr)); |
| DHD_ERROR(("CtrlCpl: Expected seq num: %d \r\n", ring->seqnum)); |
| |
| intstatus = si_corereg(dhd->bus->sih, dhd->bus->sih->buscoreidx, PCIMailBoxInt, 0, 0); |
| intmask = si_corereg(dhd->bus->sih, dhd->bus->sih->buscoreidx, PCIMailBoxMask, 0, 0); |
| mbintstatus = si_corereg(dhd->bus->sih, dhd->bus->sih->buscoreidx, PCID2H_MailBox, 0, 0); |
| dhd_bus_cmn_readshared(dhd->bus, &d2h_mb_data, D2H_MB_DATA, 0); |
| |
| DHD_ERROR(("\n ------- DUMPING INTR Status and Masks ------- \r\n")); |
| DHD_ERROR(("intstatus=0x%x intmask=0x%x mbintstatus=0x%x\n,", |
| intstatus, intmask, mbintstatus)); |
| DHD_ERROR(("d2h_mb_data=0x%x def_intmask=0x%x \r\n", d2h_mb_data, dhd->bus->def_intmask)); |
| |
| return 0; |
| } |
| |
| int |
| dhd_prot_ringupd_dump(dhd_pub_t *dhd, struct bcmstrbuf *b) |
| { |
| uint32 *ptr; |
| uint32 value; |
| uint32 i; |
| uint32 max_h2d_queues = dhd_bus_max_h2d_queues(dhd->bus); |
| |
| OSL_CACHE_INV((void *)dhd->prot->d2h_dma_indx_wr_buf.va, |
| dhd->prot->d2h_dma_indx_wr_buf.len); |
| |
| ptr = (uint32 *)(dhd->prot->d2h_dma_indx_wr_buf.va); |
| |
| bcm_bprintf(b, "\n max_tx_queues %d\n", max_h2d_queues); |
| |
| bcm_bprintf(b, "\nRPTR block H2D common rings, 0x%04x\n", ptr); |
| value = ltoh32(*ptr); |
| bcm_bprintf(b, "\tH2D CTRL: value 0x%04x\n", value); |
| ptr++; |
| value = ltoh32(*ptr); |
| bcm_bprintf(b, "\tH2D RXPOST: value 0x%04x\n", value); |
| |
| ptr++; |
| bcm_bprintf(b, "RPTR block Flow rings , 0x%04x\n", ptr); |
| for (i = BCMPCIE_H2D_COMMON_MSGRINGS; i < max_h2d_queues; i++) { |
| value = ltoh32(*ptr); |
| bcm_bprintf(b, "\tflowring ID %d: value 0x%04x\n", i, value); |
| ptr++; |
| } |
| |
| OSL_CACHE_INV((void *)dhd->prot->h2d_dma_indx_rd_buf.va, |
| dhd->prot->h2d_dma_indx_rd_buf.len); |
| |
| ptr = (uint32 *)(dhd->prot->h2d_dma_indx_rd_buf.va); |
| |
| bcm_bprintf(b, "\nWPTR block D2H common rings, 0x%04x\n", ptr); |
| value = ltoh32(*ptr); |
| bcm_bprintf(b, "\tD2H CTRLCPLT: value 0x%04x\n", value); |
| ptr++; |
| value = ltoh32(*ptr); |
| bcm_bprintf(b, "\tD2H TXCPLT: value 0x%04x\n", value); |
| ptr++; |
| value = ltoh32(*ptr); |
| bcm_bprintf(b, "\tD2H RXCPLT: value 0x%04x\n", value); |
| |
| return 0; |
| } |
| |
| uint32 |
| dhd_prot_metadata_dbg_set(dhd_pub_t *dhd, bool val) |
| { |
| dhd_prot_t *prot = dhd->prot; |
| #if DHD_DBG_SHOW_METADATA |
| prot->metadata_dbg = val; |
| #endif |
| return (uint32)prot->metadata_dbg; |
| } |
| |
| uint32 |
| dhd_prot_metadata_dbg_get(dhd_pub_t *dhd) |
| { |
| dhd_prot_t *prot = dhd->prot; |
| return (uint32)prot->metadata_dbg; |
| } |
| |
| uint32 |
| dhd_prot_metadatalen_set(dhd_pub_t *dhd, uint32 val, bool rx) |
| { |
| dhd_prot_t *prot = dhd->prot; |
| if (rx) |
| prot->rx_metadata_offset = (uint16)val; |
| else |
| prot->tx_metadata_offset = (uint16)val; |
| return dhd_prot_metadatalen_get(dhd, rx); |
| } |
| |
| uint32 |
| dhd_prot_metadatalen_get(dhd_pub_t *dhd, bool rx) |
| { |
| dhd_prot_t *prot = dhd->prot; |
| if (rx) |
| return prot->rx_metadata_offset; |
| else |
| return prot->tx_metadata_offset; |
| } |
| |
| /** optimization to write "n" tx items at a time to ring */ |
| uint32 |
| dhd_prot_txp_threshold(dhd_pub_t *dhd, bool set, uint32 val) |
| { |
| dhd_prot_t *prot = dhd->prot; |
| if (set) |
| prot->txp_threshold = (uint16)val; |
| val = prot->txp_threshold; |
| return val; |
| } |
| |
| #ifdef DHD_RX_CHAINING |
| |
| static INLINE void BCMFASTPATH |
| dhd_rxchain_reset(rxchain_info_t *rxchain) |
| { |
| rxchain->pkt_count = 0; |
| } |
| |
| static void BCMFASTPATH |
| dhd_rxchain_frame(dhd_pub_t *dhd, void *pkt, uint ifidx) |
| { |
| uint8 *eh; |
| uint8 prio; |
| dhd_prot_t *prot = dhd->prot; |
| rxchain_info_t *rxchain = &prot->rxchain; |
| |
| ASSERT(!PKTISCHAINED(pkt)); |
| ASSERT(PKTCLINK(pkt) == NULL); |
| ASSERT(PKTCGETATTR(pkt) == 0); |
| |
| eh = PKTDATA(dhd->osh, pkt); |
| prio = IP_TOS46(eh + ETHER_HDR_LEN) >> IPV4_TOS_PREC_SHIFT; |
| |
| if (rxchain->pkt_count && !(PKT_CTF_CHAINABLE(dhd, ifidx, eh, prio, rxchain->h_sa, |
| rxchain->h_da, rxchain->h_prio))) { |
| /* Different flow - First release the existing chain */ |
| dhd_rxchain_commit(dhd); |
| } |
| |
| /* For routers, with HNDCTF, link the packets using PKTSETCLINK, */ |
| /* so that the chain can be handed off to CTF bridge as is. */ |
| if (rxchain->pkt_count == 0) { |
| /* First packet in chain */ |
| rxchain->pkthead = rxchain->pkttail = pkt; |
| |
| /* Keep a copy of ptr to ether_da, ether_sa and prio */ |
| rxchain->h_da = ((struct ether_header *)eh)->ether_dhost; |
| rxchain->h_sa = ((struct ether_header *)eh)->ether_shost; |
| rxchain->h_prio = prio; |
| rxchain->ifidx = ifidx; |
| rxchain->pkt_count++; |
| } else { |
| /* Same flow - keep chaining */ |
| PKTSETCLINK(rxchain->pkttail, pkt); |
| rxchain->pkttail = pkt; |
| rxchain->pkt_count++; |
| } |
| |
| if ((!ETHER_ISMULTI(rxchain->h_da)) && |
| ((((struct ether_header *)eh)->ether_type == HTON16(ETHER_TYPE_IP)) || |
| (((struct ether_header *)eh)->ether_type == HTON16(ETHER_TYPE_IPV6)))) { |
| PKTSETCHAINED(dhd->osh, pkt); |
| PKTCINCRCNT(rxchain->pkthead); |
| PKTCADDLEN(rxchain->pkthead, PKTLEN(dhd->osh, pkt)); |
| } else { |
| dhd_rxchain_commit(dhd); |
| return; |
| } |
| |
| /* If we have hit the max chain length, dispatch the chain and reset */ |
| if (rxchain->pkt_count >= DHD_PKT_CTF_MAX_CHAIN_LEN) { |
| dhd_rxchain_commit(dhd); |
| } |
| } |
| |
| static void BCMFASTPATH |
| dhd_rxchain_commit(dhd_pub_t *dhd) |
| { |
| dhd_prot_t *prot = dhd->prot; |
| rxchain_info_t *rxchain = &prot->rxchain; |
| |
| if (rxchain->pkt_count == 0) |
| return; |
| |
| /* Release the packets to dhd_linux */ |
| dhd_bus_rx_frame(dhd->bus, rxchain->pkthead, rxchain->ifidx, rxchain->pkt_count); |
| |
| /* Reset the chain */ |
| dhd_rxchain_reset(rxchain); |
| } |
| |
| #endif /* DHD_RX_CHAINING */ |