diff options
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-4965-hw.h | 100 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-5000.c | 2 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-dev.h | 9 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-helpers.h | 5 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-tx.c | 231 |
5 files changed, 163 insertions, 184 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965-hw.h b/drivers/net/wireless/iwlwifi/iwl-4965-hw.h index f4793a609443..b66dd093084d 100644 --- a/drivers/net/wireless/iwlwifi/iwl-4965-hw.h +++ b/drivers/net/wireless/iwlwifi/iwl-4965-hw.h @@ -822,94 +822,62 @@ enum { #define IWL49_NUM_QUEUES 16 #define IWL49_NUM_AMPDU_QUEUES 8 +#define IWL_TX_DMA_MASK (DMA_BIT_MASK(36) & ~0x3) +#define IWL_NUM_OF_TBS 20 + +static inline u8 iwl_get_dma_hi_addr(dma_addr_t addr) +{ + return (sizeof(addr) > sizeof(u32) ? (addr >> 16) >> 16 : 0) & 0xF; +} /** - * struct iwl_tfd_frame_data + * struct iwl_tfd_tb transmit buffer descriptor within transmit frame descriptor * - * Describes up to 2 buffers containing (contiguous) portions of a Tx frame. - * Each buffer must be on dword boundary. - * Up to 10 iwl_tfd_frame_data structures, describing up to 20 buffers, - * may be filled within a TFD (iwl_tfd_frame). + * This structure contains dma address and length of transmission address * - * Bit fields in tb1_addr: - * 31- 0: Tx buffer 1 address bits [31:0] - * - * Bit fields in val1: - * 31-16: Tx buffer 2 address bits [15:0] - * 15- 4: Tx buffer 1 length (bytes) - * 3- 0: Tx buffer 1 address bits [32:32] - * - * Bit fields in val2: - * 31-20: Tx buffer 2 length (bytes) - * 19- 0: Tx buffer 2 address bits [35:16] + * @lo: low [31:0] portion of the dma address of TX buffer + * every even is unaligned on 16 bit boundary + * @hi_n_len 0-3 [35:32] portion of dma + * 4-16 length of the tx buffer */ -struct iwl_tfd_frame_data { - __le32 tb1_addr; - - __le32 val1; - /* __le32 ptb1_32_35:4; */ -#define IWL_tb1_addr_hi_POS 0 -#define IWL_tb1_addr_hi_LEN 4 -#define IWL_tb1_addr_hi_SYM val1 - /* __le32 tb_len1:12; */ -#define IWL_tb1_len_POS 4 -#define IWL_tb1_len_LEN 12 -#define IWL_tb1_len_SYM val1 - /* __le32 ptb2_0_15:16; */ -#define IWL_tb2_addr_lo16_POS 16 -#define IWL_tb2_addr_lo16_LEN 16 -#define IWL_tb2_addr_lo16_SYM val1 - - __le32 val2; - /* __le32 ptb2_16_35:20; */ -#define IWL_tb2_addr_hi20_POS 0 -#define IWL_tb2_addr_hi20_LEN 20 -#define IWL_tb2_addr_hi20_SYM val2 - /* __le32 tb_len2:12; */ -#define IWL_tb2_len_POS 20 -#define IWL_tb2_len_LEN 12 -#define IWL_tb2_len_SYM val2 -} __attribute__ ((packed)); - +struct iwl_tfd_tb { + __le32 lo; + __le16 hi_n_len; +} __attribute__((packed)); /** - * struct iwl_tfd_frame + * struct iwl_tfd * * Transmit Frame Descriptor (TFD) * - * 4965 supports up to 16 Tx queues resident in host DRAM. + * @ __reserved1[3] reserved + * @ num_tbs 0-5 number of active tbs + * 6-7 padding (not used) + * @ tbs[20] transmit frame buffer descriptors + * @ __pad padding + * * Each Tx queue uses a circular buffer of 256 TFDs stored in host DRAM. * Both driver and device share these circular buffers, each of which must be - * contiguous 256 TFDs x 128 bytes-per-TFD = 32 KBytes for 4965. + * contiguous 256 TFDs x 128 bytes-per-TFD = 32 KBytes * * Driver must indicate the physical address of the base of each - * circular buffer via the 4965's FH_MEM_CBBC_QUEUE registers. + * circular buffer via the FH_MEM_CBBC_QUEUE registers. * * Each TFD contains pointer/size information for up to 20 data buffers * in host DRAM. These buffers collectively contain the (one) frame described * by the TFD. Each buffer must be a single contiguous block of memory within * itself, but buffers may be scattered in host DRAM. Each buffer has max size - * of (4K - 4). The 4965 concatenates all of a TFD's buffers into a single + * of (4K - 4). The concatenates all of a TFD's buffers into a single * Tx frame, up to 8 KBytes in size. * - * Bit fields in the control dword (val0): - * 31-30: # dwords (0-3) of padding required at end of frame for 16-byte bound - * 29: reserved - * 28-24: # Transmit Buffer Descriptors in TFD - * 23- 0: reserved - * * A maximum of 255 (not 256!) TFDs may be on a queue waiting for Tx. + * + * Bit fields in the control dword (val0): */ -struct iwl_tfd_frame { - __le32 val0; - /* __le32 rsvd1:24; */ - /* __le32 num_tbs:5; */ -#define IWL_num_tbs_POS 24 -#define IWL_num_tbs_LEN 5 -#define IWL_num_tbs_SYM val0 - /* __le32 rsvd2:1; */ - /* __le32 padding:2; */ - struct iwl_tfd_frame_data pa[10]; - __le32 reserved; +struct iwl_tfd { + u8 __reserved1[3]; + u8 num_tbs; + struct iwl_tfd_tb tbs[IWL_NUM_OF_TBS]; + __le32 __pad; } __attribute__ ((packed)); diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c index 0fc6757cb901..ad566ef233b8 100644 --- a/drivers/net/wireless/iwlwifi/iwl-5000.c +++ b/drivers/net/wireless/iwlwifi/iwl-5000.c @@ -536,7 +536,7 @@ static int iwl5000_load_section(struct iwl_priv *priv, iwl_write_direct32(priv, FH_TFDIB_CTRL1_REG(FH_SRVC_CHNL), - (iwl_get_dma_hi_address(phy_addr) + (iwl_get_dma_hi_addr(phy_addr) << FH_MEM_TFDIB_REG1_ADDR_BITSHIFT) | byte_cnt); iwl_write_direct32(priv, diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h index 0f57bf40e8d7..1f42e90c5f30 100644 --- a/drivers/net/wireless/iwlwifi/iwl-dev.h +++ b/drivers/net/wireless/iwlwifi/iwl-dev.h @@ -112,11 +112,9 @@ struct iwl_queue { * space less than this */ } __attribute__ ((packed)); -#define MAX_NUM_OF_TBS (20) - /* One for each TFD */ struct iwl_tx_info { - struct sk_buff *skb[MAX_NUM_OF_TBS]; + struct sk_buff *skb[IWL_NUM_OF_TBS - 1]; }; /** @@ -134,7 +132,7 @@ struct iwl_tx_info { */ struct iwl_tx_queue { struct iwl_queue q; - struct iwl_tfd_frame *bd; + struct iwl_tfd *tfds; struct iwl_cmd *cmd[TFD_TX_CMD_SLOTS]; struct iwl_tx_info *txb; int need_update; @@ -252,7 +250,8 @@ struct iwl_cmd_meta { /* The CMD_SIZE_HUGE flag bit indicates that the command * structure is stored at the end of the shared queue memory. */ u32 flags; - + DECLARE_PCI_UNMAP_ADDR(mapping) + DECLARE_PCI_UNMAP_LEN(len) } __attribute__ ((packed)); #define IWL_CMD_MAX_PAYLOAD 320 diff --git a/drivers/net/wireless/iwlwifi/iwl-helpers.h b/drivers/net/wireless/iwlwifi/iwl-helpers.h index 41eed6793328..029d19c7075c 100644 --- a/drivers/net/wireless/iwlwifi/iwl-helpers.h +++ b/drivers/net/wireless/iwlwifi/iwl-helpers.h @@ -159,11 +159,6 @@ static inline unsigned long elapsed_jiffies(unsigned long start, return end + (MAX_JIFFY_OFFSET - start) + 1; } -static inline u8 iwl_get_dma_hi_address(dma_addr_t addr) -{ - return sizeof(addr) > sizeof(u32) ? (addr >> 16) >> 16 : 0; -} - /** * iwl_queue_inc_wrap - increment queue index, wrap back to beginning * @index -- current index diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c index b047fd156c0b..c3656c46f55f 100644 --- a/drivers/net/wireless/iwlwifi/iwl-tx.c +++ b/drivers/net/wireless/iwlwifi/iwl-tx.c @@ -56,92 +56,112 @@ static const u16 default_tid_to_tx_fifo[] = { IWL_TX_FIFO_AC3 }; +static inline dma_addr_t iwl_tfd_tb_get_addr(struct iwl_tfd *tfd, u8 idx) +{ + struct iwl_tfd_tb *tb = &tfd->tbs[idx]; + + dma_addr_t addr = get_unaligned_le32(&tb->lo); + if (sizeof(dma_addr_t) > sizeof(u32)) + addr |= + ((dma_addr_t)(le16_to_cpu(tb->hi_n_len) & 0xF) << 16) << 16; + + return addr; +} + +static inline u16 iwl_tfd_tb_get_len(struct iwl_tfd *tfd, u8 idx) +{ + struct iwl_tfd_tb *tb = &tfd->tbs[idx]; + + return le16_to_cpu(tb->hi_n_len) >> 4; +} + +static inline void iwl_tfd_set_tb(struct iwl_tfd *tfd, u8 idx, + dma_addr_t addr, u16 len) +{ + struct iwl_tfd_tb *tb = &tfd->tbs[idx]; + u16 hi_n_len = len << 4; + + put_unaligned_le32(addr, &tb->lo); + if (sizeof(dma_addr_t) > sizeof(u32)) + hi_n_len |= ((addr >> 16) >> 16) & 0xF; + + tb->hi_n_len = cpu_to_le16(hi_n_len); + + tfd->num_tbs = idx + 1; +} + +static inline u8 iwl_tfd_get_num_tbs(struct iwl_tfd *tfd) +{ + return tfd->num_tbs & 0x1f; +} /** * iwl_hw_txq_free_tfd - Free all chunks referenced by TFD [txq->q.read_ptr] + * @priv - driver private data + * @txq - tx queue * * Does NOT advance any TFD circular buffer read/write indexes * Does NOT free the TFD itself (which is within circular buffer) */ -static int iwl_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq) +static void iwl_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq) { - struct iwl_tfd_frame *bd_tmp = (struct iwl_tfd_frame *)&txq->bd[0]; - struct iwl_tfd_frame *bd = &bd_tmp[txq->q.read_ptr]; + struct iwl_tfd *tfd_tmp = (struct iwl_tfd *)&txq->tfds[0]; + struct iwl_tfd *tfd; struct pci_dev *dev = priv->pci_dev; + int index = txq->q.read_ptr; int i; - int counter = 0; - int index, is_odd; + int num_tbs; + + tfd = &tfd_tmp[index]; /* Sanity check on number of chunks */ - counter = IWL_GET_BITS(*bd, num_tbs); - if (counter > MAX_NUM_OF_TBS) { - IWL_ERROR("Too many chunks: %i\n", counter); + num_tbs = iwl_tfd_get_num_tbs(tfd); + + if (num_tbs >= IWL_NUM_OF_TBS) { + IWL_ERROR("Too many chunks: %i\n", num_tbs); /* @todo issue fatal error, it is quite serious situation */ - return 0; + return; } - /* Unmap chunks, if any. - * TFD info for odd chunks is different format than for even chunks. */ - for (i = 0; i < counter; i++) { - index = i / 2; - is_odd = i & 0x1; - - if (is_odd) - pci_unmap_single( - dev, - IWL_GET_BITS(bd->pa[index], tb2_addr_lo16) | - (IWL_GET_BITS(bd->pa[index], - tb2_addr_hi20) << 16), - IWL_GET_BITS(bd->pa[index], tb2_len), + /* Unmap tx_cmd */ + if (num_tbs) + pci_unmap_single(dev, + pci_unmap_addr(&txq->cmd[index]->meta, mapping), + pci_unmap_len(&txq->cmd[index]->meta, len), PCI_DMA_TODEVICE); - else if (i > 0) - pci_unmap_single(dev, - le32_to_cpu(bd->pa[index].tb1_addr), - IWL_GET_BITS(bd->pa[index], tb1_len), - PCI_DMA_TODEVICE); - - /* Free SKB, if any, for this chunk */ - if (txq->txb[txq->q.read_ptr].skb[i]) { - struct sk_buff *skb = txq->txb[txq->q.read_ptr].skb[i]; + /* Unmap chunks, if any. */ + for (i = 1; i < num_tbs; i++) { + pci_unmap_single(dev, iwl_tfd_tb_get_addr(tfd, i), + iwl_tfd_tb_get_len(tfd, i), PCI_DMA_TODEVICE); - dev_kfree_skb(skb); - txq->txb[txq->q.read_ptr].skb[i] = NULL; + if (txq->txb) { + dev_kfree_skb(txq->txb[txq->q.read_ptr].skb[i - 1]); + txq->txb[txq->q.read_ptr].skb[i - 1] = NULL; } } - return 0; } -static int iwl_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv, void *ptr, - dma_addr_t addr, u16 len) +static int iwl_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv, + struct iwl_tfd *tfd, + dma_addr_t addr, u16 len) { - int index, is_odd; - struct iwl_tfd_frame *tfd = ptr; - u32 num_tbs = IWL_GET_BITS(*tfd, num_tbs); + + u32 num_tbs = iwl_tfd_get_num_tbs(tfd); /* Each TFD can point to a maximum 20 Tx buffers */ - if (num_tbs >= MAX_NUM_OF_TBS) { + if (num_tbs >= IWL_NUM_OF_TBS) { IWL_ERROR("Error can not send more than %d chunks\n", - MAX_NUM_OF_TBS); + IWL_NUM_OF_TBS); return -EINVAL; } - index = num_tbs / 2; - is_odd = num_tbs & 0x1; - - if (!is_odd) { - tfd->pa[index].tb1_addr = cpu_to_le32(addr); - IWL_SET_BITS(tfd->pa[index], tb1_addr_hi, - iwl_get_dma_hi_address(addr)); - IWL_SET_BITS(tfd->pa[index], tb1_len, len); - } else { - IWL_SET_BITS(tfd->pa[index], tb2_addr_lo16, - (u32) (addr & 0xffff)); - IWL_SET_BITS(tfd->pa[index], tb2_addr_hi20, addr >> 16); - IWL_SET_BITS(tfd->pa[index], tb2_len, len); - } + BUG_ON(addr & ~DMA_BIT_MASK(36)); + if (unlikely(addr & ~IWL_TX_DMA_MASK)) + IWL_ERROR("Unaligned address = %llx\n", + (unsigned long long)addr); - IWL_SET_BITS(*tfd, num_tbs, num_tbs + 1); + iwl_tfd_set_tb(tfd, num_tbs, addr, len); return 0; } @@ -224,8 +244,8 @@ static void iwl_tx_queue_free(struct iwl_priv *priv, int txq_id) /* De-alloc circular buffer of TFDs */ if (txq->q.n_bd) - pci_free_consistent(dev, sizeof(struct iwl_tfd_frame) * - txq->q.n_bd, txq->bd, txq->q.dma_addr); + pci_free_consistent(dev, sizeof(struct iwl_tfd) * + txq->q.n_bd, txq->tfds, txq->q.dma_addr); /* De-alloc array of per-TFD driver data */ kfree(txq->txb); @@ -263,8 +283,8 @@ static void iwl_cmd_queue_free(struct iwl_priv *priv) /* De-alloc circular buffer of TFDs */ if (txq->q.n_bd) - pci_free_consistent(dev, sizeof(struct iwl_tfd_frame) * - txq->q.n_bd, txq->bd, txq->q.dma_addr); + pci_free_consistent(dev, sizeof(struct iwl_tfd) * + txq->q.n_bd, txq->tfds, txq->q.dma_addr); /* 0-fill queue descriptor structure */ memset(txq, 0, sizeof(*txq)); @@ -364,13 +384,13 @@ static int iwl_tx_queue_alloc(struct iwl_priv *priv, /* Circular buffer of transmit frame descriptors (TFDs), * shared with device */ - txq->bd = pci_alloc_consistent(dev, - sizeof(txq->bd[0]) * TFD_QUEUE_SIZE_MAX, + txq->tfds = pci_alloc_consistent(dev, + sizeof(txq->tfds[0]) * TFD_QUEUE_SIZE_MAX, &txq->q.dma_addr); - if (!txq->bd) { + if (!txq->tfds) { IWL_ERROR("pci_alloc_consistent(%zd) failed\n", - sizeof(txq->bd[0]) * TFD_QUEUE_SIZE_MAX); + sizeof(txq->tfds[0]) * TFD_QUEUE_SIZE_MAX); goto error; } txq->q.id = id; @@ -394,15 +414,15 @@ static int iwl_tx_queue_alloc(struct iwl_priv *priv, static int iwl_hw_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq) { - int rc; + int ret; unsigned long flags; int txq_id = txq->q.id; spin_lock_irqsave(&priv->lock, flags); - rc = iwl_grab_nic_access(priv); - if (rc) { + ret = iwl_grab_nic_access(priv); + if (ret) { spin_unlock_irqrestore(&priv->lock, flags); - return rc; + return ret; } /* Circular buffer (TFD queue in DRAM) physical base address */ @@ -410,10 +430,10 @@ static int iwl_hw_tx_queue_init(struct iwl_priv *priv, txq->q.dma_addr >> 8); /* Enable DMA channel, using same id as for TFD queue */ - iwl_write_direct32( - priv, FH_TCSR_CHNL_TX_CONFIG_REG(txq_id), + iwl_write_direct32(priv, FH_TCSR_CHNL_TX_CONFIG_REG(txq_id), FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE | FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE_VAL); + iwl_release_nic_access(priv); spin_unlock_irqrestore(&priv->lock, flags); @@ -788,7 +808,7 @@ int iwl_tx_skb(struct iwl_priv *priv, struct sk_buff *skb) { struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); - struct iwl_tfd_frame *tfd; + struct iwl_tfd *tfd; struct iwl_tx_queue *txq; struct iwl_queue *q; struct iwl_cmd *out_cmd; @@ -882,7 +902,7 @@ int iwl_tx_skb(struct iwl_priv *priv, struct sk_buff *skb) spin_lock_irqsave(&priv->lock, flags); /* Set up first empty TFD within this queue's circular TFD buffer */ - tfd = &txq->bd[q->write_ptr]; + tfd = &txq->tfds[q->write_ptr]; memset(tfd, 0, sizeof(*tfd)); idx = get_cmd_index(q, q->write_ptr, 0); @@ -931,12 +951,14 @@ int iwl_tx_skb(struct iwl_priv *priv, struct sk_buff *skb) /* Physical address of this Tx command's header (not MAC header!), * within command buffer array. */ - txcmd_phys = pci_map_single(priv->pci_dev, out_cmd, - sizeof(struct iwl_cmd), PCI_DMA_TODEVICE); - txcmd_phys += offsetof(struct iwl_cmd, hdr); - + txcmd_phys = pci_map_single(priv->pci_dev, + out_cmd, sizeof(struct iwl_cmd), + PCI_DMA_TODEVICE); + pci_unmap_addr_set(&out_cmd->meta, mapping, txcmd_phys); + pci_unmap_len_set(&out_cmd->meta, len, sizeof(struct iwl_cmd)); /* Add buffer containing Tx command and MAC(!) header to TFD's * first entry */ + txcmd_phys += offsetof(struct iwl_cmd, hdr); iwl_hw_txq_attach_buf_to_tfd(priv, tfd, txcmd_phys, len); if (info->control.hw_key) @@ -969,7 +991,7 @@ int iwl_tx_skb(struct iwl_priv *priv, struct sk_buff *skb) scratch_phys = txcmd_phys + sizeof(struct iwl_cmd_header) + offsetof(struct iwl_tx_cmd, scratch); tx_cmd->dram_lsb_ptr = cpu_to_le32(scratch_phys); - tx_cmd->dram_msb_ptr = iwl_get_dma_hi_address(scratch_phys); + tx_cmd->dram_msb_ptr = iwl_get_dma_hi_addr(scratch_phys); if (!ieee80211_has_morefrags(hdr->frame_control)) { txq->need_update = 1; @@ -1030,7 +1052,7 @@ int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd) { struct iwl_tx_queue *txq = &priv->txq[IWL_CMD_QUEUE_NUM]; struct iwl_queue *q = &txq->q; - struct iwl_tfd_frame *tfd; + struct iwl_tfd *tfd; struct iwl_cmd *out_cmd; dma_addr_t phys_addr; unsigned long flags; @@ -1059,7 +1081,7 @@ int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd) spin_lock_irqsave(&priv->hcmd_lock, flags); - tfd = &txq->bd[q->write_ptr]; + tfd = &txq->tfds[q->write_ptr]; memset(tfd, 0, sizeof(*tfd)); @@ -1080,9 +1102,13 @@ int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd) out_cmd->hdr.sequence |= SEQ_HUGE_FRAME; len = (idx == TFD_CMD_SLOTS) ? IWL_MAX_SCAN_SIZE : sizeof(struct iwl_cmd); - phys_addr = pci_map_single(priv->pci_dev, out_cmd, len, - PCI_DMA_TODEVICE); + + phys_addr = pci_map_single(priv->pci_dev, out_cmd, + len, PCI_DMA_TODEVICE); + pci_unmap_addr_set(&out_cmd->meta, mapping, phys_addr); + pci_unmap_len_set(&out_cmd->meta, len, len); phys_addr += offsetof(struct iwl_cmd, hdr); + iwl_hw_txq_attach_buf_to_tfd(priv, tfd, phys_addr, fix_size); #ifdef CONFIG_IWLWIFI_DEBUG @@ -1132,8 +1158,9 @@ int iwl_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index) return 0; } - for (index = iwl_queue_inc_wrap(index, q->n_bd); q->read_ptr != index; - q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd)) { + for (index = iwl_queue_inc_wrap(index, q->n_bd); + q->read_ptr != index; + q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd)) { tx_info = &txq->txb[txq->q.read_ptr]; ieee80211_tx_status_irqsafe(priv->hw, tx_info->skb[0]); @@ -1157,44 +1184,34 @@ EXPORT_SYMBOL(iwl_tx_queue_reclaim); * need to be reclaimed. As result, some free space forms. If there is * enough free space (> low mark), wake the stack that feeds us. */ -static void iwl_hcmd_queue_reclaim(struct iwl_priv *priv, int txq_id, int index) +static void iwl_hcmd_queue_reclaim(struct iwl_priv *priv, int txq_id, + int idx, int cmd_idx) { struct iwl_tx_queue *txq = &priv->txq[txq_id]; struct iwl_queue *q = &txq->q; - struct iwl_tfd_frame *bd = &txq->bd[index]; - dma_addr_t dma_addr; - int is_odd, buf_len; int nfreed = 0; - if ((index >= q->n_bd) || (iwl_queue_used(q, index) == 0)) { + if ((idx >= q->n_bd) || (iwl_queue_used(q, idx) == 0)) { IWL_ERROR("Read index for DMA queue txq id (%d), index %d, " "is out of range [0-%d] %d %d.\n", txq_id, - index, q->n_bd, q->write_ptr, q->read_ptr); + idx, q->n_bd, q->write_ptr, q->read_ptr); return; } - for (index = iwl_queue_inc_wrap(index, q->n_bd); q->read_ptr != index; - q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd)) { + pci_unmap_single(priv->pci_dev, + pci_unmap_addr(&txq->cmd[cmd_idx]->meta, mapping), + pci_unmap_len(&txq->cmd[cmd_idx]->meta, len), + PCI_DMA_TODEVICE); + + for (idx = iwl_queue_inc_wrap(idx, q->n_bd); q->read_ptr != idx; + q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd)) { - if (nfreed > 1) { - IWL_ERROR("HCMD skipped: index (%d) %d %d\n", index, + if (nfreed++ > 0) { + IWL_ERROR("HCMD skipped: index (%d) %d %d\n", idx, q->write_ptr, q->read_ptr); queue_work(priv->workqueue, &priv->restart); } - is_odd = (index/2) & 0x1; - if (is_odd) { - dma_addr = IWL_GET_BITS(bd->pa[index], tb2_addr_lo16) | - (IWL_GET_BITS(bd->pa[index], - tb2_addr_hi20) << 16); - buf_len = IWL_GET_BITS(bd->pa[index], tb2_len); - } else { - dma_addr = le32_to_cpu(bd->pa[index].tb1_addr); - buf_len = IWL_GET_BITS(bd->pa[index], tb1_len); - } - pci_unmap_single(priv->pci_dev, dma_addr, buf_len, - PCI_DMA_TODEVICE); - nfreed++; } } @@ -1234,7 +1251,7 @@ void iwl_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb) !cmd->meta.u.callback(priv, cmd, rxb->skb)) rxb->skb = NULL; - iwl_hcmd_queue_reclaim(priv, txq_id, index); + iwl_hcmd_queue_reclaim(priv, txq_id, index, cmd_index); if (!(cmd->meta.flags & CMD_ASYNC)) { clear_bit(STATUS_HCMD_ACTIVE, &priv->status); |
