diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-trans.c')
-rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-trans.c | 1615 |
1 files changed, 1270 insertions, 345 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-trans.c b/drivers/net/wireless/iwlwifi/iwl-trans.c index 3001bfb46e25..cec13adb018e 100644 --- a/drivers/net/wireless/iwlwifi/iwl-trans.c +++ b/drivers/net/wireless/iwlwifi/iwl-trans.c @@ -60,6 +60,11 @@ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * *****************************************************************************/ +#include <linux/interrupt.h> +#include <linux/debugfs.h> +#include <linux/bitops.h> +#include <linux/gfp.h> + #include "iwl-dev.h" #include "iwl-trans.h" #include "iwl-core.h" @@ -67,14 +72,16 @@ #include "iwl-trans-int-pcie.h" /*TODO remove uneeded includes when the transport layer tx_free will be here */ #include "iwl-agn.h" -#include "iwl-core.h" +#include "iwl-shared.h" -static int iwl_trans_rx_alloc(struct iwl_priv *priv) +static int iwl_trans_rx_alloc(struct iwl_trans *trans) { - struct iwl_rx_queue *rxq = &priv->rxq; - struct device *dev = priv->bus->dev; + struct iwl_trans_pcie *trans_pcie = + IWL_TRANS_GET_PCIE_TRANS(trans); + struct iwl_rx_queue *rxq = &trans_pcie->rxq; + struct device *dev = bus(trans)->dev; - memset(&priv->rxq, 0, sizeof(priv->rxq)); + memset(&trans_pcie->rxq, 0, sizeof(trans_pcie->rxq)); spin_lock_init(&rxq->lock); INIT_LIST_HEAD(&rxq->rx_free); @@ -108,9 +115,11 @@ err_bd: return -ENOMEM; } -static void iwl_trans_rxq_free_rx_bufs(struct iwl_priv *priv) +static void iwl_trans_rxq_free_rx_bufs(struct iwl_trans *trans) { - struct iwl_rx_queue *rxq = &priv->rxq; + struct iwl_trans_pcie *trans_pcie = + IWL_TRANS_GET_PCIE_TRANS(trans); + struct iwl_rx_queue *rxq = &trans_pcie->rxq; int i; /* Fill the rx_used queue with _all_ of the Rx buffers */ @@ -118,17 +127,18 @@ static void iwl_trans_rxq_free_rx_bufs(struct iwl_priv *priv) /* In the reset function, these buffers may have been allocated * to an SKB, so we need to unmap and free potential storage */ if (rxq->pool[i].page != NULL) { - dma_unmap_page(priv->bus->dev, rxq->pool[i].page_dma, - PAGE_SIZE << priv->hw_params.rx_page_order, + dma_unmap_page(bus(trans)->dev, rxq->pool[i].page_dma, + PAGE_SIZE << hw_params(trans).rx_page_order, DMA_FROM_DEVICE); - __iwl_free_pages(priv, rxq->pool[i].page); + __free_pages(rxq->pool[i].page, + hw_params(trans).rx_page_order); rxq->pool[i].page = NULL; } list_add_tail(&rxq->pool[i].list, &rxq->rx_used); } } -static void iwl_trans_rx_hw_init(struct iwl_priv *priv, +static void iwl_trans_rx_hw_init(struct iwl_trans *trans, struct iwl_rx_queue *rxq) { u32 rb_size; @@ -143,17 +153,17 @@ static void iwl_trans_rx_hw_init(struct iwl_priv *priv, rb_size = FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_4K; /* Stop Rx DMA */ - iwl_write_direct32(priv, FH_MEM_RCSR_CHNL0_CONFIG_REG, 0); + iwl_write_direct32(bus(trans), FH_MEM_RCSR_CHNL0_CONFIG_REG, 0); /* Reset driver's Rx queue write index */ - iwl_write_direct32(priv, FH_RSCSR_CHNL0_RBDCB_WPTR_REG, 0); + iwl_write_direct32(bus(trans), FH_RSCSR_CHNL0_RBDCB_WPTR_REG, 0); /* Tell device where to find RBD circular buffer in DRAM */ - iwl_write_direct32(priv, FH_RSCSR_CHNL0_RBDCB_BASE_REG, + iwl_write_direct32(bus(trans), FH_RSCSR_CHNL0_RBDCB_BASE_REG, (u32)(rxq->bd_dma >> 8)); /* Tell device where in DRAM to update its Rx status */ - iwl_write_direct32(priv, FH_RSCSR_CHNL0_STTS_WPTR_REG, + iwl_write_direct32(bus(trans), FH_RSCSR_CHNL0_STTS_WPTR_REG, rxq->rb_stts_dma >> 4); /* Enable Rx DMA @@ -164,7 +174,7 @@ static void iwl_trans_rx_hw_init(struct iwl_priv *priv, * RB timeout 0x10 * 256 RBDs */ - iwl_write_direct32(priv, FH_MEM_RCSR_CHNL0_CONFIG_REG, + iwl_write_direct32(bus(trans), FH_MEM_RCSR_CHNL0_CONFIG_REG, FH_RCSR_RX_CONFIG_CHNL_EN_ENABLE_VAL | FH_RCSR_CHNL0_RX_IGNORE_RXF_EMPTY | FH_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_INT_HOST_VAL | @@ -174,17 +184,20 @@ static void iwl_trans_rx_hw_init(struct iwl_priv *priv, (rfdnlog << FH_RCSR_RX_CONFIG_RBDCB_SIZE_POS)); /* Set interrupt coalescing timer to default (2048 usecs) */ - iwl_write8(priv, CSR_INT_COALESCING, IWL_HOST_INT_TIMEOUT_DEF); + iwl_write8(bus(trans), CSR_INT_COALESCING, IWL_HOST_INT_TIMEOUT_DEF); } -static int iwl_rx_init(struct iwl_priv *priv) +static int iwl_rx_init(struct iwl_trans *trans) { - struct iwl_rx_queue *rxq = &priv->rxq; + struct iwl_trans_pcie *trans_pcie = + IWL_TRANS_GET_PCIE_TRANS(trans); + struct iwl_rx_queue *rxq = &trans_pcie->rxq; + int i, err; unsigned long flags; if (!rxq->bd) { - err = iwl_trans_rx_alloc(priv); + err = iwl_trans_rx_alloc(trans); if (err) return err; } @@ -193,7 +206,7 @@ static int iwl_rx_init(struct iwl_priv *priv) INIT_LIST_HEAD(&rxq->rx_free); INIT_LIST_HEAD(&rxq->rx_used); - iwl_trans_rxq_free_rx_bufs(priv); + iwl_trans_rxq_free_rx_bufs(trans); for (i = 0; i < RX_QUEUE_SIZE; i++) rxq->queue[i] = NULL; @@ -205,65 +218,68 @@ static int iwl_rx_init(struct iwl_priv *priv) rxq->free_count = 0; spin_unlock_irqrestore(&rxq->lock, flags); - iwlagn_rx_replenish(priv); + iwlagn_rx_replenish(trans); - iwl_trans_rx_hw_init(priv, rxq); + iwl_trans_rx_hw_init(trans, rxq); - spin_lock_irqsave(&priv->lock, flags); + spin_lock_irqsave(&trans->shrd->lock, flags); rxq->need_update = 1; - iwl_rx_queue_update_write_ptr(priv, rxq); - spin_unlock_irqrestore(&priv->lock, flags); + iwl_rx_queue_update_write_ptr(trans, rxq); + spin_unlock_irqrestore(&trans->shrd->lock, flags); return 0; } -static void iwl_trans_rx_free(struct iwl_priv *priv) +static void iwl_trans_pcie_rx_free(struct iwl_trans *trans) { - struct iwl_rx_queue *rxq = &priv->rxq; + struct iwl_trans_pcie *trans_pcie = + IWL_TRANS_GET_PCIE_TRANS(trans); + struct iwl_rx_queue *rxq = &trans_pcie->rxq; + unsigned long flags; /*if rxq->bd is NULL, it means that nothing has been allocated, * exit now */ if (!rxq->bd) { - IWL_DEBUG_INFO(priv, "Free NULL rx context\n"); + IWL_DEBUG_INFO(trans, "Free NULL rx context\n"); return; } spin_lock_irqsave(&rxq->lock, flags); - iwl_trans_rxq_free_rx_bufs(priv); + iwl_trans_rxq_free_rx_bufs(trans); spin_unlock_irqrestore(&rxq->lock, flags); - dma_free_coherent(priv->bus->dev, sizeof(__le32) * RX_QUEUE_SIZE, + dma_free_coherent(bus(trans)->dev, sizeof(__le32) * RX_QUEUE_SIZE, rxq->bd, rxq->bd_dma); memset(&rxq->bd_dma, 0, sizeof(rxq->bd_dma)); rxq->bd = NULL; if (rxq->rb_stts) - dma_free_coherent(priv->bus->dev, + dma_free_coherent(bus(trans)->dev, sizeof(struct iwl_rb_status), rxq->rb_stts, rxq->rb_stts_dma); else - IWL_DEBUG_INFO(priv, "Free rxq->rb_stts which is NULL\n"); + IWL_DEBUG_INFO(trans, "Free rxq->rb_stts which is NULL\n"); memset(&rxq->rb_stts_dma, 0, sizeof(rxq->rb_stts_dma)); rxq->rb_stts = NULL; } -static int iwl_trans_rx_stop(struct iwl_priv *priv) +static int iwl_trans_rx_stop(struct iwl_trans *trans) { /* stop Rx DMA */ - iwl_write_direct32(priv, FH_MEM_RCSR_CHNL0_CONFIG_REG, 0); - return iwl_poll_direct_bit(priv, FH_MEM_RSSR_RX_STATUS_REG, + iwl_write_direct32(bus(trans), FH_MEM_RCSR_CHNL0_CONFIG_REG, 0); + return iwl_poll_direct_bit(bus(trans), FH_MEM_RSSR_RX_STATUS_REG, FH_RSSR_CHNL0_RX_STATUS_CHNL_IDLE, 1000); } -static inline int iwlagn_alloc_dma_ptr(struct iwl_priv *priv, +static inline int iwlagn_alloc_dma_ptr(struct iwl_trans *trans, struct iwl_dma_ptr *ptr, size_t size) { if (WARN_ON(ptr->addr)) return -EINVAL; - ptr->addr = dma_alloc_coherent(priv->bus->dev, size, + ptr->addr = dma_alloc_coherent(bus(trans)->dev, size, &ptr->dma, GFP_KERNEL); if (!ptr->addr) return -ENOMEM; @@ -271,23 +287,24 @@ static inline int iwlagn_alloc_dma_ptr(struct iwl_priv *priv, return 0; } -static inline void iwlagn_free_dma_ptr(struct iwl_priv *priv, +static inline void iwlagn_free_dma_ptr(struct iwl_trans *trans, struct iwl_dma_ptr *ptr) { if (unlikely(!ptr->addr)) return; - dma_free_coherent(priv->bus->dev, ptr->size, ptr->addr, ptr->dma); + dma_free_coherent(bus(trans)->dev, ptr->size, ptr->addr, ptr->dma); memset(ptr, 0, sizeof(*ptr)); } -static int iwl_trans_txq_alloc(struct iwl_priv *priv, struct iwl_tx_queue *txq, - int slots_num, u32 txq_id) +static int iwl_trans_txq_alloc(struct iwl_trans *trans, + struct iwl_tx_queue *txq, int slots_num, + u32 txq_id) { - size_t tfd_sz = priv->hw_params.tfd_size * TFD_QUEUE_SIZE_MAX; + size_t tfd_sz = sizeof(struct iwl_tfd) * TFD_QUEUE_SIZE_MAX; int i; - if (WARN_ON(txq->meta || txq->cmd || txq->txb || txq->tfds)) + if (WARN_ON(txq->meta || txq->cmd || txq->skbs || txq->tfds)) return -EINVAL; txq->q.n_window = slots_num; @@ -300,45 +317,46 @@ static int iwl_trans_txq_alloc(struct iwl_priv *priv, struct iwl_tx_queue *txq, if (!txq->meta || !txq->cmd) goto error; - for (i = 0; i < slots_num; i++) { - txq->cmd[i] = kmalloc(sizeof(struct iwl_device_cmd), - GFP_KERNEL); - if (!txq->cmd[i]) - goto error; - } + if (txq_id == trans->shrd->cmd_queue) + for (i = 0; i < slots_num; i++) { + txq->cmd[i] = kmalloc(sizeof(struct iwl_device_cmd), + GFP_KERNEL); + if (!txq->cmd[i]) + goto error; + } /* Alloc driver data array and TFD circular buffer */ /* Driver private data, only for Tx (not command) queues, * not shared with device. */ - if (txq_id != priv->cmd_queue) { - txq->txb = kzalloc(sizeof(txq->txb[0]) * + if (txq_id != trans->shrd->cmd_queue) { + txq->skbs = kzalloc(sizeof(txq->skbs[0]) * TFD_QUEUE_SIZE_MAX, GFP_KERNEL); - if (!txq->txb) { - IWL_ERR(priv, "kmalloc for auxiliary BD " + if (!txq->skbs) { + IWL_ERR(trans, "kmalloc for auxiliary BD " "structures failed\n"); goto error; } } else { - txq->txb = NULL; + txq->skbs = NULL; } /* Circular buffer of transmit frame descriptors (TFDs), * shared with device */ - txq->tfds = dma_alloc_coherent(priv->bus->dev, tfd_sz, &txq->q.dma_addr, - GFP_KERNEL); + txq->tfds = dma_alloc_coherent(bus(trans)->dev, tfd_sz, + &txq->q.dma_addr, GFP_KERNEL); if (!txq->tfds) { - IWL_ERR(priv, "dma_alloc_coherent(%zd) failed\n", tfd_sz); + IWL_ERR(trans, "dma_alloc_coherent(%zd) failed\n", tfd_sz); goto error; } txq->q.id = txq_id; return 0; error: - kfree(txq->txb); - txq->txb = NULL; + kfree(txq->skbs); + txq->skbs = NULL; /* since txq->cmd has been zeroed, * all non allocated cmd[i] will be NULL */ - if (txq->cmd) + if (txq->cmd && txq_id == trans->shrd->cmd_queue) for (i = 0; i < slots_num; i++) kfree(txq->cmd[i]); kfree(txq->meta); @@ -350,7 +368,7 @@ error: } -static int iwl_trans_txq_init(struct iwl_priv *priv, struct iwl_tx_queue *txq, +static int iwl_trans_txq_init(struct iwl_trans *trans, struct iwl_tx_queue *txq, int slots_num, u32 txq_id) { int ret; @@ -371,7 +389,7 @@ static int iwl_trans_txq_init(struct iwl_priv *priv, struct iwl_tx_queue *txq, BUILD_BUG_ON(TFD_QUEUE_SIZE_MAX & (TFD_QUEUE_SIZE_MAX - 1)); /* Initialize queue's high/low-water marks, and head/tail indexes */ - ret = iwl_queue_init(priv, &txq->q, TFD_QUEUE_SIZE_MAX, slots_num, + ret = iwl_queue_init(&txq->q, TFD_QUEUE_SIZE_MAX, slots_num, txq_id); if (ret) return ret; @@ -380,7 +398,7 @@ static int iwl_trans_txq_init(struct iwl_priv *priv, struct iwl_tx_queue *txq, * Tell nic where to find circular buffer of Tx Frame Descriptors for * given Tx queue, and enable the DMA channel used for that queue. * Circular buffer (TFD queue in DRAM) physical base address */ - iwl_write_direct32(priv, FH_MEM_CBBC_QUEUE(txq_id), + iwl_write_direct32(bus(trans), FH_MEM_CBBC_QUEUE(txq_id), txq->q.dma_addr >> 8); return 0; @@ -389,9 +407,10 @@ static int iwl_trans_txq_init(struct iwl_priv *priv, struct iwl_tx_queue *txq, /** * iwl_tx_queue_unmap - Unmap any remaining DMA mappings and free skb's */ -static void iwl_tx_queue_unmap(struct iwl_priv *priv, int txq_id) +static void iwl_tx_queue_unmap(struct iwl_trans *trans, int txq_id) { - struct iwl_tx_queue *txq = &priv->txq[txq_id]; + struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); + struct iwl_tx_queue *txq = &trans_pcie->txq[txq_id]; struct iwl_queue *q = &txq->q; if (!q->n_bd) @@ -399,7 +418,7 @@ static void iwl_tx_queue_unmap(struct iwl_priv *priv, int txq_id) while (q->write_ptr != q->read_ptr) { /* The read_ptr needs to bound by q->n_window */ - iwlagn_txq_free_tfd(priv, txq, get_cmd_index(q, q->read_ptr)); + iwlagn_txq_free_tfd(trans, txq, get_cmd_index(q, q->read_ptr)); q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd); } } @@ -412,30 +431,33 @@ static void iwl_tx_queue_unmap(struct iwl_priv *priv, int txq_id) * Free all buffers. * 0-fill, but do not free "txq" descriptor structure. */ -static void iwl_tx_queue_free(struct iwl_priv *priv, int txq_id) +static void iwl_tx_queue_free(struct iwl_trans *trans, int txq_id) { - struct iwl_tx_queue *txq = &priv->txq[txq_id]; - struct device *dev = priv->bus->dev; + struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); + struct iwl_tx_queue *txq = &trans_pcie->txq[txq_id]; + struct device *dev = bus(trans)->dev; int i; if (WARN_ON(!txq)) return; - iwl_tx_queue_unmap(priv, txq_id); + iwl_tx_queue_unmap(trans, txq_id); /* De-alloc array of command/tx buffers */ - for (i = 0; i < txq->q.n_window; i++) - kfree(txq->cmd[i]); + + if (txq_id == trans->shrd->cmd_queue) + for (i = 0; i < txq->q.n_window; i++) + kfree(txq->cmd[i]); /* De-alloc circular buffer of TFDs */ if (txq->q.n_bd) { - dma_free_coherent(dev, priv->hw_params.tfd_size * + dma_free_coherent(dev, sizeof(struct iwl_tfd) * txq->q.n_bd, txq->tfds, txq->q.dma_addr); memset(&txq->q.dma_addr, 0, sizeof(txq->q.dma_addr)); } /* De-alloc array of per-TFD driver data */ - kfree(txq->txb); - txq->txb = NULL; + kfree(txq->skbs); + txq->skbs = NULL; /* deallocate arrays */ kfree(txq->cmd); @@ -452,22 +474,24 @@ static void iwl_tx_queue_free(struct iwl_priv *priv, int txq_id) * * Destroy all TX DMA queues and structures */ -static void iwl_trans_tx_free(struct iwl_priv *priv) +static void iwl_trans_pcie_tx_free(struct iwl_trans *trans) { int txq_id; + struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); /* Tx queues */ - if (priv->txq) { - for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++) - iwl_tx_queue_free(priv, txq_id); + if (trans_pcie->txq) { + for (txq_id = 0; + txq_id < hw_params(trans).max_txq_num; txq_id++) + iwl_tx_queue_free(trans, txq_id); } - kfree(priv->txq); - priv->txq = NULL; + kfree(trans_pcie->txq); + trans_pcie->txq = NULL; - iwlagn_free_dma_ptr(priv, &priv->kw); + iwlagn_free_dma_ptr(trans, &trans_pcie->kw); - iwlagn_free_dma_ptr(priv, &priv->scd_bc_tbls); + iwlagn_free_dma_ptr(trans, &trans_pcie->scd_bc_tbls); } /** @@ -477,48 +501,52 @@ static void iwl_trans_tx_free(struct iwl_priv *priv) * @param priv * @return error code */ -static int iwl_trans_tx_alloc(struct iwl_priv *priv) +static int iwl_trans_tx_alloc(struct iwl_trans *trans) { int ret; int txq_id, slots_num; + struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); + + u16 scd_bc_tbls_size = hw_params(trans).max_txq_num * + sizeof(struct iwlagn_scd_bc_tbl); /*It is not allowed to alloc twice, so warn when this happens. * We cannot rely on the previous allocation, so free and fail */ - if (WARN_ON(priv->txq)) { + if (WARN_ON(trans_pcie->txq)) { ret = -EINVAL; goto error; } - ret = iwlagn_alloc_dma_ptr(priv, &priv->scd_bc_tbls, - priv->hw_params.scd_bc_tbls_size); + ret = iwlagn_alloc_dma_ptr(trans, &trans_pcie->scd_bc_tbls, + scd_bc_tbls_size); if (ret) { - IWL_ERR(priv, "Scheduler BC Table allocation failed\n"); + IWL_ERR(trans, "Scheduler BC Table allocation failed\n"); goto error; } /* Alloc keep-warm buffer */ - ret = iwlagn_alloc_dma_ptr(priv, &priv->kw, IWL_KW_SIZE); + ret = iwlagn_alloc_dma_ptr(trans, &trans_pcie->kw, IWL_KW_SIZE); if (ret) { - IWL_ERR(priv, "Keep Warm allocation failed\n"); + IWL_ERR(trans, "Keep Warm allocation failed\n"); goto error; } - priv->txq = kzalloc(sizeof(struct iwl_tx_queue) * - priv->cfg->base_params->num_of_queues, GFP_KERNEL); - if (!priv->txq) { - IWL_ERR(priv, "Not enough memory for txq\n"); + trans_pcie->txq = kzalloc(sizeof(struct iwl_tx_queue) * + hw_params(trans).max_txq_num, GFP_KERNEL); + if (!trans_pcie->txq) { + IWL_ERR(trans, "Not enough memory for txq\n"); ret = ENOMEM; goto error; } /* Alloc and init all Tx queues, including the command queue (#4/#9) */ - for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++) { - slots_num = (txq_id == priv->cmd_queue) ? + for (txq_id = 0; txq_id < hw_params(trans).max_txq_num; txq_id++) { + slots_num = (txq_id == trans->shrd->cmd_queue) ? TFD_CMD_SLOTS : TFD_TX_CMD_SLOTS; - ret = iwl_trans_txq_alloc(priv, &priv->txq[txq_id], slots_num, - txq_id); + ret = iwl_trans_txq_alloc(trans, &trans_pcie->txq[txq_id], + slots_num, txq_id); if (ret) { - IWL_ERR(priv, "Tx %d queue alloc failed\n", txq_id); + IWL_ERR(trans, "Tx %d queue alloc failed\n", txq_id); goto error; } } @@ -526,42 +554,44 @@ static int iwl_trans_tx_alloc(struct iwl_priv *priv) return 0; error: - trans_tx_free(&priv->trans); + iwl_trans_pcie_tx_free(trans); return ret; } -static int iwl_tx_init(struct iwl_priv *priv) +static int iwl_tx_init(struct iwl_trans *trans) { int ret; int txq_id, slots_num; unsigned long flags; bool alloc = false; + struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); - if (!priv->txq) { - ret = iwl_trans_tx_alloc(priv); + if (!trans_pcie->txq) { + ret = iwl_trans_tx_alloc(trans); if (ret) goto error; alloc = true; } - spin_lock_irqsave(&priv->lock, flags); + spin_lock_irqsave(&trans->shrd->lock, flags); /* Turn off all Tx DMA fifos */ - iwl_write_prph(priv, SCD_TXFACT, 0); + iwl_write_prph(bus(trans), SCD_TXFACT, 0); /* Tell NIC where to find the "keep warm" buffer */ - iwl_write_direct32(priv, FH_KW_MEM_ADDR_REG, priv->kw.dma >> 4); + iwl_write_direct32(bus(trans), FH_KW_MEM_ADDR_REG, + trans_pcie->kw.dma >> 4); - spin_unlock_irqrestore(&priv->lock, flags); + spin_unlock_irqrestore(&trans->shrd->lock, flags); /* Alloc and init all Tx queues, including the command queue (#4/#9) */ - for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++) { - slots_num = (txq_id == priv->cmd_queue) ? + for (txq_id = 0; txq_id < hw_params(trans).max_txq_num; txq_id++) { + slots_num = (txq_id == trans->shrd->cmd_queue) ? TFD_CMD_SLOTS : TFD_TX_CMD_SLOTS; - ret = iwl_trans_txq_init(priv, &priv->txq[txq_id], slots_num, - txq_id); + ret = iwl_trans_txq_init(trans, &trans_pcie->txq[txq_id], + slots_num, txq_id); if (ret) { - IWL_ERR(priv, "Tx %d queue init failed\n", txq_id); + IWL_ERR(trans, "Tx %d queue init failed\n", txq_id); goto error; } } @@ -570,58 +600,61 @@ static int iwl_tx_init(struct iwl_priv *priv) error: /*Upon error, free only if we allocated something */ if (alloc) - trans_tx_free(&priv->trans); + iwl_trans_pcie_tx_free(trans); return ret; } static void iwl_set_pwr_vmain(struct iwl_priv *priv) { + struct iwl_trans *trans = trans(priv); /* * (for documentation purposes) * to set power to V_AUX, do: if (pci_pme_capable(priv->pci_dev, PCI_D3cold)) - iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG, + iwl_set_bits_mask_prph(bus(trans), APMG_PS_CTRL_REG, APMG_PS_CTRL_VAL_PWR_SRC_VAUX, ~APMG_PS_CTRL_MSK_PWR_SRC); */ - iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG, + iwl_set_bits_mask_prph(bus(trans), APMG_PS_CTRL_REG, APMG_PS_CTRL_VAL_PWR_SRC_VMAIN, ~APMG_PS_CTRL_MSK_PWR_SRC); } -static int iwl_nic_init(struct iwl_priv *priv) +static int iwl_nic_init(struct iwl_trans *trans) { unsigned long flags; + struct iwl_priv *priv = priv(trans); /* nic_init */ - spin_lock_irqsave(&priv->lock, flags); + spin_lock_irqsave(&trans->shrd->lock, flags); iwl_apm_init(priv); /* Set interrupt coalescing calibration timer to default (512 usecs) */ - iwl_write8(priv, CSR_INT_COALESCING, IWL_HOST_INT_CALIB_TIMEOUT_DEF); + iwl_write8(bus(trans), CSR_INT_COALESCING, + IWL_HOST_INT_CALIB_TIMEOUT_DEF); - spin_unlock_irqrestore(&priv->lock, flags); + spin_unlock_irqrestore(&trans->shrd->lock, flags); iwl_set_pwr_vmain(priv); priv->cfg->lib->nic_config(priv); /* Allocate the RX queue, or reset if it is already allocated */ - iwl_rx_init(priv); + iwl_rx_init(trans); /* Allocate or reset and init all Tx and Command queues */ - if (iwl_tx_init(priv)) + if (iwl_tx_init(trans)) return -ENOMEM; - if (priv->cfg->base_params->shadow_reg_enable) { + if (hw_params(trans).shadow_reg_enable) { /* enable shadow regs in HW */ - iwl_set_bit(priv, CSR_MAC_SHADOW_REG_CTRL, + iwl_set_bit(bus(trans), CSR_MAC_SHADOW_REG_CTRL, 0x800FFFFF); } - set_bit(STATUS_INIT, &priv->status); + set_bit(STATUS_INIT, &trans->shrd->status); return 0; } @@ -629,39 +662,39 @@ static int iwl_nic_init(struct iwl_priv *priv) #define HW_READY_TIMEOUT (50) /* Note: returns poll_bit return value, which is >= 0 if success */ -static int iwl_set_hw_ready(struct iwl_priv *priv) +static int iwl_set_hw_ready(struct iwl_trans *trans) { int ret; - iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG, + iwl_set_bit(bus(trans), CSR_HW_IF_CONFIG_REG, CSR_HW_IF_CONFIG_REG_BIT_NIC_READY); /* See if we got it */ - ret = iwl_poll_bit(priv, CSR_HW_IF_CONFIG_REG, + ret = iwl_poll_bit(bus(trans), CSR_HW_IF_CONFIG_REG, CSR_HW_IF_CONFIG_REG_BIT_NIC_READY, CSR_HW_IF_CONFIG_REG_BIT_NIC_READY, HW_READY_TIMEOUT); - IWL_DEBUG_INFO(priv, "hardware%s ready\n", ret < 0 ? " not" : ""); + IWL_DEBUG_INFO(trans, "hardware%s ready\n", ret < 0 ? " not" : ""); return ret; } /* Note: returns standard 0/-ERROR code */ -static int iwl_trans_prepare_card_hw(struct iwl_priv *priv) +static int iwl_trans_pcie_prepare_card_hw(struct iwl_trans *trans) { int ret; - IWL_DEBUG_INFO(priv, "iwl_trans_prepare_card_hw enter\n"); + IWL_DEBUG_INFO(trans, "iwl_trans_prepare_card_hw enter\n"); - ret = iwl_set_hw_ready(priv); + ret = iwl_set_hw_ready(trans); if (ret >= 0) return 0; /* If HW is not ready, prepare the conditions to check again */ - iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG, + iwl_set_bit(bus(trans), CSR_HW_IF_CONFIG_REG, CSR_HW_IF_CONFIG_REG_PREPARE); - ret = iwl_poll_bit(priv, CSR_HW_IF_CONFIG_REG, + ret = iwl_poll_bit(bus(trans), CSR_HW_IF_CONFIG_REG, ~CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE, CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE, 150000); @@ -669,153 +702,189 @@ static int iwl_trans_prepare_card_hw(struct iwl_priv *priv) return ret; /* HW should be ready by now, check again. */ - ret = iwl_set_hw_ready(priv); + ret = iwl_set_hw_ready(trans); if (ret >= 0) return 0; return ret; } -static int iwl_trans_start_device(struct iwl_priv *priv) +#define IWL_AC_UNSET -1 + +struct queue_to_fifo_ac { + s8 fifo, ac; +}; + +static const struct queue_to_fifo_ac iwlagn_default_queue_to_tx_fifo[] = { + { IWL_TX_FIFO_VO, IEEE80211_AC_VO, }, + { IWL_TX_FIFO_VI, IEEE80211_AC_VI, }, + { IWL_TX_FIFO_BE, IEEE80211_AC_BE, }, + { IWL_TX_FIFO_BK, IEEE80211_AC_BK, }, + { IWLAGN_CMD_FIFO_NUM, IWL_AC_UNSET, }, + { IWL_TX_FIFO_UNUSED, IWL_AC_UNSET, }, + { IWL_TX_FIFO_UNUSED, IWL_AC_UNSET, }, + { IWL_TX_FIFO_UNUSED, IWL_AC_UNSET, }, + { IWL_TX_FIFO_UNUSED, IWL_AC_UNSET, }, + { IWL_TX_FIFO_UNUSED, IWL_AC_UNSET, }, + { IWL_TX_FIFO_UNUSED, IWL_AC_UNSET, }, +}; + +static const struct queue_to_fifo_ac iwlagn_ipan_queue_to_tx_fifo[] = { + { IWL_TX_FIFO_VO, IEEE80211_AC_VO, }, + { IWL_TX_FIFO_VI, IEEE80211_AC_VI, }, + { IWL_TX_FIFO_BE, IEEE80211_AC_BE, }, + { IWL_TX_FIFO_BK, IEEE80211_AC_BK, }, + { IWL_TX_FIFO_BK_IPAN, IEEE80211_AC_BK, }, + { IWL_TX_FIFO_BE_IPAN, IEEE80211_AC_BE, }, + { IWL_TX_FIFO_VI_IPAN, IEEE80211_AC_VI, }, + { IWL_TX_FIFO_VO_IPAN, IEEE80211_AC_VO, }, + { IWL_TX_FIFO_BE_IPAN, 2, }, + { IWLAGN_CMD_FIFO_NUM, IWL_AC_UNSET, }, + { IWL_TX_FIFO_AUX, IWL_AC_UNSET, }, +}; + +static const u8 iwlagn_bss_ac_to_fifo[] = { + IWL_TX_FIFO_VO, + IWL_TX_FIFO_VI, + IWL_TX_FIFO_BE, + IWL_TX_FIFO_BK, +}; +static const u8 iwlagn_bss_ac_to_queue[] = { + 0, 1, 2, 3, +}; +static const u8 iwlagn_pan_ac_to_fifo[] = { + IWL_TX_FIFO_VO_IPAN, + IWL_TX_FIFO_VI_IPAN, + IWL_TX_FIFO_BE_IPAN, + IWL_TX_FIFO_BK_IPAN, +}; +static const u8 iwlagn_pan_ac_to_queue[] = { + 7, 6, 5, 4, +}; + +static int iwl_trans_pcie_start_device(struct iwl_trans *trans) { int ret; + struct iwl_priv *priv = priv(trans); + struct iwl_trans_pcie *trans_pcie = + IWL_TRANS_GET_PCIE_TRANS(trans); - priv->ucode_owner = IWL_OWNERSHIP_DRIVER; + trans->shrd->ucode_owner = IWL_OWNERSHIP_DRIVER; + trans_pcie->ac_to_queue[IWL_RXON_CTX_BSS] = iwlagn_bss_ac_to_queue; + trans_pcie->ac_to_queue[IWL_RXON_CTX_PAN] = iwlagn_pan_ac_to_queue; - if ((priv->cfg->sku & EEPROM_SKU_CAP_AMT_ENABLE) && - iwl_trans_prepare_card_hw(priv)) { - IWL_WARN(priv, "Exit HW not ready\n"); + trans_pcie->ac_to_fifo[IWL_RXON_CTX_BSS] = iwlagn_bss_ac_to_fifo; + trans_pcie->ac_to_fifo[IWL_RXON_CTX_PAN] = iwlagn_pan_ac_to_fifo; + + trans_pcie->mcast_queue[IWL_RXON_CTX_BSS] = 0; + trans_pcie->mcast_queue[IWL_RXON_CTX_PAN] = IWL_IPAN_MCAST_QUEUE; + + if ((hw_params(trans).sku & EEPROM_SKU_CAP_AMT_ENABLE) && + iwl_trans_pcie_prepare_card_hw(trans)) { + IWL_WARN(trans, "Exit HW not ready\n"); return -EIO; } /* If platform's RF_KILL switch is NOT set to KILL */ - if (iwl_read32(priv, CSR_GP_CNTRL) & + if (iwl_read32(bus(trans), CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW) - clear_bit(STATUS_RF_KILL_HW, &priv->status); + clear_bit(STATUS_RF_KILL_HW, &trans->shrd->status); else - set_bit(STATUS_RF_KILL_HW, &priv->status); + set_bit(STATUS_RF_KILL_HW, &trans->shrd->status); - if (iwl_is_rfkill(priv)) { + if (iwl_is_rfkill(trans->shrd)) { wiphy_rfkill_set_hw_state(priv->hw->wiphy, true); - iwl_enable_interrupts(priv); + iwl_enable_interrupts(trans); return -ERFKILL; } - iwl_write32(priv, CSR_INT, 0xFFFFFFFF); + iwl_write32(bus(trans), CSR_INT, 0xFFFFFFFF); - ret = iwl_nic_init(priv); + ret = iwl_nic_init(trans); if (ret) { - IWL_ERR(priv, "Unable to init nic\n"); + IWL_ERR(trans, "Unable to init nic\n"); return ret; } /* make sure rfkill handshake bits are cleared */ - iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); - iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, + iwl_write32(bus(trans), CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); + iwl_write32(bus(trans), CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); /* clear (again), then enable host interrupts */ - iwl_write32(priv, CSR_INT, 0xFFFFFFFF); - iwl_enable_interrupts(priv); + iwl_write32(bus(trans), CSR_INT, 0xFFFFFFFF); + iwl_enable_interrupts(trans); /* really make sure rfkill handshake bits are cleared */ - iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); - iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); + iwl_write32(bus(trans), CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); + iwl_write32(bus(trans), CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); return 0; } /* * Activate/Deactivate Tx DMA/FIFO channels according tx fifos mask - * must be called under priv->lock and mac access + * must be called under priv->shrd->lock and mac access */ -static void iwl_trans_txq_set_sched(struct iwl_priv *priv, u32 mask) +static void iwl_trans_txq_set_sched(struct iwl_trans *trans, u32 mask) { - iwl_write_prph(priv, SCD_TXFACT, mask); + iwl_write_prph(bus(trans), SCD_TXFACT, mask); } -#define IWL_AC_UNSET -1 - -struct queue_to_fifo_ac { - s8 fifo, ac; -}; - -static const struct queue_to_fifo_ac iwlagn_default_queue_to_tx_fifo[] = { - { IWL_TX_FIFO_VO, IEEE80211_AC_VO, }, - { IWL_TX_FIFO_VI, IEEE80211_AC_VI, }, - { IWL_TX_FIFO_BE, IEEE80211_AC_BE, }, - { IWL_TX_FIFO_BK, IEEE80211_AC_BK, }, - { IWLAGN_CMD_FIFO_NUM, IWL_AC_UNSET, }, - { IWL_TX_FIFO_UNUSED, IWL_AC_UNSET, }, - { IWL_TX_FIFO_UNUSED, IWL_AC_UNSET, }, - { IWL_TX_FIFO_UNUSED, IWL_AC_UNSET, }, - { IWL_TX_FIFO_UNUSED, IWL_AC_UNSET, }, - { IWL_TX_FIFO_UNUSED, IWL_AC_UNSET, }, - { IWL_TX_FIFO_UNUSED, IWL_AC_UNSET, }, -}; - -static const struct queue_to_fifo_ac iwlagn_ipan_queue_to_tx_fifo[] = { - { IWL_TX_FIFO_VO, IEEE80211_AC_VO, }, - { IWL_TX_FIFO_VI, IEEE80211_AC_VI, }, - { IWL_TX_FIFO_BE, IEEE80211_AC_BE, }, - { IWL_TX_FIFO_BK, IEEE80211_AC_BK, }, - { IWL_TX_FIFO_BK_IPAN, IEEE80211_AC_BK, }, - { IWL_TX_FIFO_BE_IPAN, IEEE80211_AC_BE, }, - { IWL_TX_FIFO_VI_IPAN, IEEE80211_AC_VI, }, - { IWL_TX_FIFO_VO_IPAN, IEEE80211_AC_VO, }, - { IWL_TX_FIFO_BE_IPAN, 2, }, - { IWLAGN_CMD_FIFO_NUM, IWL_AC_UNSET, }, - { IWL_TX_FIFO_AUX, IWL_AC_UNSET, }, -}; -static void iwl_trans_tx_start(struct iwl_priv *priv) +static void iwl_trans_pcie_tx_start(struct iwl_trans *trans) { const struct queue_to_fifo_ac *queue_to_fifo; struct iwl_rxon_context *ctx; + struct iwl_priv *priv = priv(trans); + struct iwl_trans_pcie *trans_pcie = + IWL_TRANS_GET_PCIE_TRANS(trans); u32 a; unsigned long flags; int i, chan; u32 reg_val; - spin_lock_irqsave(&priv->lock, flags); + spin_lock_irqsave(&trans->shrd->lock, flags); - priv->scd_base_addr = iwl_read_prph(priv, SCD_SRAM_BASE_ADDR); - a = priv->scd_base_addr + SCD_CONTEXT_MEM_LOWER_BOUND; + trans_pcie->scd_base_addr = + iwl_read_prph(bus(trans), SCD_SRAM_BASE_ADDR); + a = trans_pcie->scd_base_addr + SCD_CONTEXT_MEM_LOWER_BOUND; /* reset conext data memory */ - for (; a < priv->scd_base_addr + SCD_CONTEXT_MEM_UPPER_BOUND; + for (; a < trans_pcie->scd_base_addr + SCD_CONTEXT_MEM_UPPER_BOUND; a += 4) - iwl_write_targ_mem(priv, a, 0); + iwl_write_targ_mem(bus(trans), a, 0); /* reset tx status memory */ - for (; a < priv->scd_base_addr + SCD_TX_STTS_MEM_UPPER_BOUND; + for (; a < trans_pcie->scd_base_addr + SCD_TX_STTS_MEM_UPPER_BOUND; a += 4) - iwl_write_targ_mem(priv, a, 0); - for (; a < priv->scd_base_addr + - SCD_TRANS_TBL_OFFSET_QUEUE(priv->hw_params.max_txq_num); a += 4) - iwl_write_targ_mem(priv, a, 0); + iwl_write_targ_mem(bus(trans), a, 0); + for (; a < trans_pcie->scd_base_addr + + SCD_TRANS_TBL_OFFSET_QUEUE(hw_params(trans).max_txq_num); + a += 4) + iwl_write_targ_mem(bus(trans), a, 0); - iwl_write_prph(priv, SCD_DRAM_BASE_ADDR, - priv->scd_bc_tbls.dma >> 10); + iwl_write_prph(bus(trans), SCD_DRAM_BASE_ADDR, + trans_pcie->scd_bc_tbls.dma >> 10); /* Enable DMA channel */ for (chan = 0; chan < FH_TCSR_CHNL_NUM ; chan++) - iwl_write_direct32(priv, FH_TCSR_CHNL_TX_CONFIG_REG(chan), + iwl_write_direct32(bus(trans), FH_TCSR_CHNL_TX_CONFIG_REG(chan), FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE | FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE); /* Update FH chicken bits */ - reg_val = iwl_read_direct32(priv, FH_TX_CHICKEN_BITS_REG); - iwl_write_direct32(priv, FH_TX_CHICKEN_BITS_REG, + reg_val = iwl_read_direct32(bus(trans), FH_TX_CHICKEN_BITS_REG); + iwl_write_direct32(bus(trans), FH_TX_CHICKEN_BITS_REG, reg_val | FH_TX_CHICKEN_BITS_SCD_AUTO_RETRY_EN); - iwl_write_prph(priv, SCD_QUEUECHAIN_SEL, - SCD_QUEUECHAIN_SEL_ALL(priv)); - iwl_write_prph(priv, SCD_AGGR_SEL, 0); + iwl_write_prph(bus(trans), SCD_QUEUECHAIN_SEL, + SCD_QUEUECHAIN_SEL_ALL(trans)); + iwl_write_prph(bus(trans), SCD_AGGR_SEL, 0); /* initiate the queues */ - for (i = 0; i < priv->hw_params.max_txq_num; i++) { - iwl_write_prph(priv, SCD_QUEUE_RDPTR(i), 0); - iwl_write_direct32(priv, HBUS_TARG_WRPTR, 0 | (i << 8)); - iwl_write_targ_mem(priv, priv->scd_base_addr + + for (i = 0; i < hw_params(trans).max_txq_num; i++) { + iwl_write_prph(bus(trans), SCD_QUEUE_RDPTR(i), 0); + iwl_write_direct32(bus(trans), HBUS_TARG_WRPTR, 0 | (i << 8)); + iwl_write_targ_mem(bus(trans), trans_pcie->scd_base_addr + SCD_CONTEXT_QUEUE_OFFSET(i), 0); - iwl_write_targ_mem(priv, priv->scd_base_addr + + iwl_write_targ_mem(bus(trans), trans_pcie->scd_base_addr + SCD_CONTEXT_QUEUE_OFFSET(i) + sizeof(u32), ((SCD_WIN_SIZE << @@ -826,11 +895,11 @@ static void iwl_trans_tx_start(struct iwl_priv *priv) SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK)); } - iwl_write_prph(priv, SCD_INTERRUPT_MASK, - IWL_MASK(0, priv->hw_params.max_txq_num)); + iwl_write_prph(bus(trans), SCD_INTERRUPT_MASK, + IWL_MASK(0, hw_params(trans).max_txq_num)); /* Activate all Tx DMA/FIFO channels */ - iwl_trans_txq_set_sched(priv, IWL_MASK(0, 7)); + iwl_trans_txq_set_sched(trans, IWL_MASK(0, 7)); /* map queues to FIFOs */ if (priv->valid_contexts != BIT(IWL_RXON_CTX_BSS)) @@ -838,96 +907,111 @@ static void iwl_trans_tx_start(struct iwl_priv *priv) else queue_to_fifo = iwlagn_default_queue_to_tx_fifo; - iwl_trans_set_wr_ptrs(priv, priv->cmd_queue, 0); + iwl_trans_set_wr_ptrs(trans, trans->shrd->cmd_queue, 0); /* make sure all queue are not stopped */ - memset(&priv->queue_stopped[0], 0, sizeof(priv->queue_stopped)); + memset(&trans_pcie->queue_stopped[0], 0, + sizeof(trans_pcie->queue_stopped)); for (i = 0; i < 4; i++) - atomic_set(&priv->queue_stop_count[i], 0); + atomic_set(&trans_pcie->queue_stop_count[i], 0); for_each_context(priv, ctx) ctx->last_tx_rejected = false; /* reset to 0 to enable all the queue first */ - priv->txq_ctx_active_msk = 0; + trans_pcie->txq_ctx_active_msk = 0; - BUILD_BUG_ON(ARRAY_SIZE(iwlagn_default_queue_to_tx_fifo) != + BUILD_BUG_ON(ARRAY_SIZE(iwlagn_default_queue_to_tx_fifo) < IWLAGN_FIRST_AMPDU_QUEUE); - BUILD_BUG_ON(ARRAY_SIZE(iwlagn_ipan_queue_to_tx_fifo) != + BUILD_BUG_ON(ARRAY_SIZE(iwlagn_ipan_queue_to_tx_fifo) < IWLAGN_FIRST_AMPDU_QUEUE); for (i = 0; i < IWLAGN_FIRST_AMPDU_QUEUE; i++) { int fifo = queue_to_fifo[i].fifo; int ac = queue_to_fifo[i].ac; - iwl_txq_ctx_activate(priv, i); + iwl_txq_ctx_activate(trans_pcie, i); if (fifo == IWL_TX_FIFO_UNUSED) continue; if (ac != IWL_AC_UNSET) - iwl_set_swq_id(&priv->txq[i], ac, i); - iwl_trans_tx_queue_set_status(priv, &priv->txq[i], fifo, 0); + iwl_set_swq_id(&trans_pcie->txq[i], ac, i); + iwl_trans_tx_queue_set_status(trans, &trans_pcie->txq[i], + fifo, 0); } - spin_unlock_irqrestore(&priv->lock, flags); + spin_unlock_irqrestore(&trans->shrd->lock, flags); /* Enable L1-Active */ - iwl_clear_bits_prph(priv, APMG_PCIDEV_STT_REG, + iwl_clear_bits_prph(bus(trans), APMG_PCIDEV_STT_REG, APMG_PCIDEV_STT_VAL_L1_ACT_DIS); } /** * iwlagn_txq_ctx_stop - Stop all Tx DMA channels */ -static int iwl_trans_tx_stop(struct iwl_priv *priv) +static int iwl_trans_tx_stop(struct iwl_trans *trans) { int ch, txq_id; unsigned long flags; + struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); /* Turn off all Tx DMA fifos */ - spin_lock_irqsave(&priv->lock, flags); + spin_lock_irqsave(&trans->shrd->lock, flags); - iwl_trans_txq_set_sched(priv, 0); + iwl_trans_txq_set_sched(trans, 0); /* Stop each Tx DMA channel, and wait for it to be idle */ for (ch = 0; ch < FH_TCSR_CHNL_NUM; ch++) { - iwl_write_direct32(priv, FH_TCSR_CHNL_TX_CONFIG_REG(ch), 0x0); - if (iwl_poll_direct_bit(priv, FH_TSSR_TX_STATUS_REG, + iwl_write_direct32(bus(trans), + FH_TCSR_CHNL_TX_CONFIG_REG(ch), 0x0); + if (iwl_poll_direct_bit(bus(trans), FH_TSSR_TX_STATUS_REG, FH_TSSR_TX_STATUS_REG_MSK_CHNL_IDLE(ch), 1000)) - IWL_ERR(priv, "Failing on timeout while stopping" + IWL_ERR(trans, "Failing on timeout while stopping" " DMA channel %d [0x%08x]", ch, - iwl_read_direct32(priv, FH_TSSR_TX_STATUS_REG)); + iwl_read_direct32(bus(trans), + FH_TSSR_TX_STATUS_REG)); } - spin_unlock_irqrestore(&priv->lock, flags); + spin_unlock_irqrestore(&trans->shrd->lock, flags); - if (!priv->txq) { - IWL_WARN(priv, "Stopping tx queues that aren't allocated..."); + if (!trans_pcie->txq) { + IWL_WARN(trans, "Stopping tx queues that aren't allocated..."); return 0; } /* Unmap DMA from host system and free skb's */ - for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++) - iwl_tx_queue_unmap(priv, txq_id); + for (txq_id = 0; txq_id < hw_params(trans).max_txq_num; txq_id++) + iwl_tx_queue_unmap(trans, txq_id); return 0; } -static void iwl_trans_stop_device(struct iwl_priv *priv) +static void iwl_trans_pcie_disable_sync_irq(struct iwl_trans *trans) { unsigned long flags; + struct iwl_trans_pcie *trans_pcie = + IWL_TRANS_GET_PCIE_TRANS(trans); + + spin_lock_irqsave(&trans->shrd->lock, flags); + iwl_disable_interrupts(trans); + spin_unlock_irqrestore(&trans->shrd->lock, flags); + + /* wait to make sure we flush pending tasklet*/ + synchronize_irq(bus(trans)->irq); + tasklet_kill(&trans_pcie->irq_tasklet); +} +static void iwl_trans_pcie_stop_device(struct iwl_trans *trans) +{ /* stop and reset the on-board processor */ - iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET); + iwl_write32(bus(trans), CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET); /* tell the device to stop sending interrupts */ - spin_lock_irqsave(&priv->lock, flags); - iwl_disable_interrupts(priv); - spin_unlock_irqrestore(&priv->lock, flags); - trans_sync_irq(&priv->trans); + iwl_trans_pcie_disable_sync_irq(trans); /* device going down, Stop using ICT table */ - iwl_disable_ict(priv); + iwl_disable_ict(trans); /* * If a HW restart happens during firmware loading, @@ -936,67 +1020,100 @@ static void iwl_trans_stop_device(struct iwl_priv *priv) * restart. So don't process again if the device is * already dead. */ - if (test_bit(STATUS_DEVICE_ENABLED, &priv->status)) { - iwl_trans_tx_stop(priv); - iwl_trans_rx_stop(priv); + if (test_bit(STATUS_DEVICE_ENABLED, &trans->shrd->status)) { + iwl_trans_tx_stop(trans); + iwl_trans_rx_stop(trans); /* Power-down device's busmaster DMA clocks */ - iwl_write_prph(priv, APMG_CLK_DIS_REG, + iwl_write_prph(bus(trans), APMG_CLK_DIS_REG, APMG_CLK_VAL_DMA_CLK_RQT); udelay(5); } /* Make sure (redundant) we've released our request to stay awake */ - iwl_clear_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); + iwl_clear_bit(bus(trans), CSR_GP_CNTRL, + CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); /* Stop the device, and put it in low power state */ - iwl_apm_stop(priv); -} - -static struct iwl_tx_cmd *iwl_trans_get_tx_cmd(struct iwl_priv *priv, - int txq_id) -{ - struct iwl_tx_queue *txq = &priv->txq[txq_id]; - struct iwl_queue *q = &txq->q; - struct iwl_device_cmd *dev_cmd; - - if (unlikely(iwl_queue_space(q) < q->high_mark)) - return NULL; - - /* - * Set up the Tx-command (not MAC!) header. - * Store the chosen Tx queue and TFD index within the sequence field; - * after Tx, uCode's Tx response will return this value so driver can - * locate the frame within the tx queue and do post-tx processing. - */ - dev_cmd = txq->cmd[q->write_ptr]; - memset(dev_cmd, 0, sizeof(*dev_cmd)); - dev_cmd->hdr.cmd = REPLY_TX; - dev_cmd->hdr.sequence = cpu_to_le16((u16)(QUEUE_TO_SEQ(txq_id) | - INDEX_TO_SEQ(q->write_ptr))); - return &dev_cmd->cmd.tx; + iwl_apm_stop(priv(trans)); } -static int iwl_trans_tx(struct iwl_priv *priv, struct sk_buff *skb, - struct iwl_tx_cmd *tx_cmd, int txq_id, __le16 fc, bool ampdu, - struct iwl_rxon_context *ctx) +static int iwl_trans_pcie_tx(struct iwl_trans *trans, struct sk_buff *skb, + struct iwl_device_cmd *dev_cmd, u8 ctx, u8 sta_id) { - struct iwl_tx_queue *txq = &priv->txq[txq_id]; - struct iwl_queue *q = &txq->q; - struct iwl_device_cmd *dev_cmd = txq->cmd[q->write_ptr]; + struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); + struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + struct iwl_tx_cmd *tx_cmd = &dev_cmd->cmd.tx; struct iwl_cmd_meta *out_meta; + struct iwl_tx_queue *txq; + struct iwl_queue *q; dma_addr_t phys_addr = 0; dma_addr_t txcmd_phys; dma_addr_t scratch_phys; u16 len, firstlen, secondlen; + u16 seq_number = 0; u8 wait_write_ptr = 0; + u8 txq_id; + u8 tid = 0; + bool is_agg = false; + __le16 fc = hdr->frame_control; u8 hdr_len = ieee80211_hdrlen(fc); + /* + * Send this frame after DTIM -- there's a special queue + * reserved for this for contexts that support AP mode. + */ + if (info->flags & IEEE80211_TX_CTL_SEND_AFTER_DTIM) { + txq_id = trans_pcie->mcast_queue[ctx]; + + /* + * The microcode will clear the more data + * bit in the last frame it transmits. + */ + hdr->frame_control |= + cpu_to_le16(IEEE80211_FCTL_MOREDATA); + } else if (info->flags & IEEE80211_TX_CTL_TX_OFFCHAN) + txq_id = IWL_AUX_QUEUE; + else + txq_id = + trans_pcie->ac_to_queue[ctx][skb_get_queue_mapping(skb)]; + + if (ieee80211_is_data_qos(fc)) { + u8 *qc = NULL; + struct iwl_tid_data *tid_data; + qc = ieee80211_get_qos_ctl(hdr); + tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK; + tid_data = &trans->shrd->tid_data[sta_id][tid]; + + if (WARN_ON_ONCE(tid >= IWL_MAX_TID_COUNT)) + return -1; + + seq_number = tid_data->seq_number; + seq_number &= IEEE80211_SCTL_SEQ; + hdr->seq_ctrl = hdr->seq_ctrl & + cpu_to_le16(IEEE80211_SCTL_FRAG); + hdr->seq_ctrl |= cpu_to_le16(seq_number); + seq_number += 0x10; + /* aggregation is on for this <sta,tid> */ + if (info->flags & IEEE80211_TX_CTL_AMPDU && + tid_data->agg.state == IWL_AGG_ON) { + txq_id = tid_data->agg.txq_id; + is_agg = true; + } + } + + txq = &trans_pcie->txq[txq_id]; + q = &txq->q; + /* Set up driver data for this TFD */ - memset(&(txq->txb[q->write_ptr]), 0, sizeof(struct iwl_tx_info)); - txq->txb[q->write_ptr].skb = skb; - txq->txb[q->write_ptr].ctx = ctx; + txq->skbs[q->write_ptr] = skb; + txq->cmd[q->write_ptr] = dev_cmd; + + dev_cmd->hdr.cmd = REPLY_TX; + dev_cmd->hdr.sequence = cpu_to_le16((u16)(QUEUE_TO_SEQ(txq_id) | + INDEX_TO_SEQ(q->write_ptr))); /* Set up first empty entry in queue's array of Tx/cmd buffers */ out_meta = &txq->meta[q->write_ptr]; @@ -1020,10 +1137,10 @@ static int iwl_trans_tx(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 = dma_map_single(priv->bus->dev, + txcmd_phys = dma_map_single(bus(trans)->dev, &dev_cmd->hdr, firstlen, DMA_BIDIRECTIONAL); - if (unlikely(dma_mapping_error(priv->bus->dev, txcmd_phys))) + if (unlikely(dma_mapping_error(bus(trans)->dev, txcmd_phys))) return -1; dma_unmap_addr_set(out_meta, mapping, txcmd_phys); dma_unmap_len_set(out_meta, len, firstlen); @@ -1039,10 +1156,10 @@ static int iwl_trans_tx(struct iwl_priv *priv, struct sk_buff *skb, * if any (802.11 null frames have no payload). */ secondlen = skb->len - hdr_len; if (secondlen > 0) { - phys_addr = dma_map_single(priv->bus->dev, skb->data + hdr_len, + phys_addr = dma_map_single(bus(trans)->dev, skb->data + hdr_len, secondlen, DMA_TO_DEVICE); - if (unlikely(dma_mapping_error(priv->bus->dev, phys_addr))) { - dma_unmap_single(priv->bus->dev, + if (unlikely(dma_mapping_error(bus(trans)->dev, phys_addr))) { + dma_unmap_single(bus(trans)->dev, dma_unmap_addr(out_meta, mapping), dma_unmap_len(out_meta, len), DMA_BIDIRECTIONAL); @@ -1051,35 +1168,35 @@ static int iwl_trans_tx(struct iwl_priv *priv, struct sk_buff *skb, } /* Attach buffers to TFD */ - iwlagn_txq_attach_buf_to_tfd(priv, txq, txcmd_phys, firstlen, 1); + iwlagn_txq_attach_buf_to_tfd(trans, txq, txcmd_phys, firstlen, 1); if (secondlen > 0) - iwlagn_txq_attach_buf_to_tfd(priv, txq, phys_addr, + iwlagn_txq_attach_buf_to_tfd(trans, txq, phys_addr, secondlen, 0); scratch_phys = txcmd_phys + sizeof(struct iwl_cmd_header) + offsetof(struct iwl_tx_cmd, scratch); /* take back ownership of DMA buffer to enable update */ - dma_sync_single_for_cpu(priv->bus->dev, txcmd_phys, firstlen, + dma_sync_single_for_cpu(bus(trans)->dev, txcmd_phys, firstlen, DMA_BIDIRECTIONAL); tx_cmd->dram_lsb_ptr = cpu_to_le32(scratch_phys); tx_cmd->dram_msb_ptr = iwl_get_dma_hi_addr(scratch_phys); - IWL_DEBUG_TX(priv, "sequence nr = 0X%x\n", + IWL_DEBUG_TX(trans, "sequence nr = 0X%x\n", le16_to_cpu(dev_cmd->hdr.sequence)); - IWL_DEBUG_TX(priv, "tx_flags = 0X%x\n", le32_to_cpu(tx_cmd->tx_flags)); - iwl_print_hex_dump(priv, IWL_DL_TX, (u8 *)tx_cmd, sizeof(*tx_cmd)); - iwl_print_hex_dump(priv, IWL_DL_TX, (u8 *)tx_cmd->hdr, hdr_len); + IWL_DEBUG_TX(trans, "tx_flags = 0X%x\n", le32_to_cpu(tx_cmd->tx_flags)); + iwl_print_hex_dump(trans, IWL_DL_TX, (u8 *)tx_cmd, sizeof(*tx_cmd)); + iwl_print_hex_dump(trans, IWL_DL_TX, (u8 *)tx_cmd->hdr, hdr_len); /* Set up entry for this TFD in Tx byte-count array */ - if (ampdu) - iwl_trans_txq_update_byte_cnt_tbl(priv, txq, + if (is_agg) + iwl_trans_txq_update_byte_cnt_tbl(trans, txq, le16_to_cpu(tx_cmd->len)); - dma_sync_single_for_device(priv->bus->dev, txcmd_phys, firstlen, + dma_sync_single_for_device(bus(trans)->dev, txcmd_phys, firstlen, DMA_BIDIRECTIONAL); - trace_iwlwifi_dev_tx(priv, + trace_iwlwifi_dev_tx(priv(trans), &((struct iwl_tfd *)txq->tfds)[txq->q.write_ptr], sizeof(struct iwl_tfd), &dev_cmd->hdr, firstlen, @@ -1087,7 +1204,14 @@ static int iwl_trans_tx(struct iwl_priv *priv, struct sk_buff *skb, /* Tell device the write index *just past* this latest filled TFD */ q->write_ptr = iwl_queue_inc_wrap(q->write_ptr, q->n_bd); - iwl_txq_update_write_ptr(priv, txq); + iwl_txq_update_write_ptr(trans, txq); + + if (ieee80211_is_data_qos(fc)) { + trans->shrd->tid_data[sta_id][tid].tfds_in_queue++; + if (!ieee80211_has_morefrags(fc)) + trans->shrd->tid_data[sta_id][tid].seq_number = + seq_number; + } /* * At this point the frame is "transmitted" successfully @@ -1095,82 +1219,883 @@ static int iwl_trans_tx(struct iwl_priv *priv, struct sk_buff *skb, * regardless of the value of ret. "ret" only indicates * whether or not we should update the write pointer. */ - if ((iwl_queue_space(q) < q->high_mark) && priv->mac80211_registered) { + if (iwl_queue_space(q) < q->high_mark) { if (wait_write_ptr) { txq->need_update = 1; - iwl_txq_update_write_ptr(priv, txq); + iwl_txq_update_write_ptr(trans, txq); } else { - iwl_stop_queue(priv, txq); + iwl_stop_queue(trans, txq); } } return 0; } -static void iwl_trans_kick_nic(struct iwl_priv *priv) +static void iwl_trans_pcie_kick_nic(struct iwl_trans *trans) { /* Remove all resets to allow NIC to operate */ - iwl_write32(priv, CSR_RESET, 0); + iwl_write32(bus(trans), CSR_RESET, 0); } -static void iwl_trans_sync_irq(struct iwl_priv *priv) +static int iwl_trans_pcie_request_irq(struct iwl_trans *trans) { - /* wait to make sure we flush pending tasklet*/ - synchronize_irq(priv->bus->irq); - tasklet_kill(&priv->irq_tasklet); + struct iwl_trans_pcie *trans_pcie = + IWL_TRANS_GET_PCIE_TRANS(trans); + int err; + + trans_pcie->inta_mask = CSR_INI_SET_MASK; + + tasklet_init(&trans_pcie->irq_tasklet, (void (*)(unsigned long)) + iwl_irq_tasklet, (unsigned long)trans); + + iwl_alloc_isr_ict(trans); + + err = request_irq(bus(trans)->irq, iwl_isr_ict, IRQF_SHARED, + DRV_NAME, trans); + if (err) { + IWL_ERR(trans, "Error allocating IRQ %d\n", bus(trans)->irq); + iwl_free_isr_ict(trans); + return err; + } + + INIT_WORK(&trans_pcie->rx_replenish, iwl_bg_rx_replenish); + return 0; +} + +static int iwlagn_txq_check_empty(struct iwl_trans *trans, + int sta_id, u8 tid, int txq_id) +{ + struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); + struct iwl_queue *q = &trans_pcie->txq[txq_id].q; + struct iwl_tid_data *tid_data = &trans->shrd->tid_data[sta_id][tid]; + + lockdep_assert_held(&trans->shrd->sta_lock); + + switch (trans->shrd->tid_data[sta_id][tid].agg.state) { + case IWL_EMPTYING_HW_QUEUE_DELBA: + /* We are reclaiming the last packet of the */ + /* aggregated HW queue */ + if ((txq_id == tid_data->agg.txq_id) && + (q->read_ptr == q->write_ptr)) { + IWL_DEBUG_HT(trans, + "HW queue empty: continue DELBA flow\n"); + iwl_trans_pcie_txq_agg_disable(trans, txq_id); + tid_data->agg.state = IWL_AGG_OFF; + iwl_stop_tx_ba_trans_ready(priv(trans), + NUM_IWL_RXON_CTX, + sta_id, tid); + iwl_wake_queue(trans, &trans_pcie->txq[txq_id]); + } + break; + case IWL_EMPTYING_HW_QUEUE_ADDBA: + /* We are reclaiming the last packet of the queue */ + if (tid_data->tfds_in_queue == 0) { + IWL_DEBUG_HT(trans, + "HW queue empty: continue ADDBA flow\n"); + tid_data->agg.state = IWL_AGG_ON; + iwl_start_tx_ba_trans_ready(priv(trans), + NUM_IWL_RXON_CTX, + sta_id, tid); + } + break; + } + + return 0; +} + +static void iwl_free_tfds_in_queue(struct iwl_trans *trans, + int sta_id, int tid, int freed) +{ + lockdep_assert_held(&trans->shrd->sta_lock); + + if (trans->shrd->tid_data[sta_id][tid].tfds_in_queue >= freed) + trans->shrd->tid_data[sta_id][tid].tfds_in_queue -= freed; + else { + IWL_DEBUG_TX(trans, "free more than tfds_in_queue (%u:%d)\n", + trans->shrd->tid_data[sta_id][tid].tfds_in_queue, + freed); + trans->shrd->tid_data[sta_id][tid].tfds_in_queue = 0; + } +} + +static void iwl_trans_pcie_reclaim(struct iwl_trans *trans, int sta_id, int tid, + int txq_id, int ssn, u32 status, + struct sk_buff_head *skbs) +{ + struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); + struct iwl_tx_queue *txq = &trans_pcie->txq[txq_id]; + /* n_bd is usually 256 => n_bd - 1 = 0xff */ + int tfd_num = ssn & (txq->q.n_bd - 1); + int freed = 0; + u8 agg_state; + bool cond; + + txq->time_stamp = jiffies; + + if (txq->sched_retry) { + agg_state = + trans->shrd->tid_data[txq->sta_id][txq->tid].agg.state; + cond = (agg_state != IWL_EMPTYING_HW_QUEUE_DELBA); + } else { + cond = (status != TX_STATUS_FAIL_PASSIVE_NO_RX); + } + + if (txq->q.read_ptr != tfd_num) { + IWL_DEBUG_TX_REPLY(trans, "Retry scheduler reclaim " + "scd_ssn=%d idx=%d txq=%d swq=%d\n", + ssn , tfd_num, txq_id, txq->swq_id); + freed = iwl_tx_queue_reclaim(trans, txq_id, tfd_num, skbs); + if (iwl_queue_space(&txq->q) > txq->q.low_mark && cond) + iwl_wake_queue(trans, txq); + } + + iwl_free_tfds_in_queue(trans, sta_id, tid, freed); + iwlagn_txq_check_empty(trans, sta_id, tid, txq_id); +} + +static void iwl_trans_pcie_free(struct iwl_trans *trans) +{ + iwl_trans_pcie_tx_free(trans); + iwl_trans_pcie_rx_free(trans); + free_irq(bus(trans)->irq, trans); + iwl_free_isr_ict(trans); + trans->shrd->trans = NULL; + kfree(trans); +} + +#ifdef CONFIG_PM + +static int iwl_trans_pcie_suspend(struct iwl_trans *trans) +{ + /* + * This function is called when system goes into suspend state + * mac80211 will call iwl_mac_stop() from the mac80211 suspend function + * first but since iwl_mac_stop() has no knowledge of who the caller is, + * it will not call apm_ops.stop() to stop the DMA operation. + * Calling apm_ops.stop here to make sure we stop the DMA. + * + * But of course ... if we have configured WoWLAN then we did other + * things already :-) + */ + if (!trans->shrd->wowlan) + iwl_apm_stop(priv(trans)); + + return 0; +} + +static int iwl_trans_pcie_resume(struct iwl_trans *trans) +{ + bool hw_rfkill = false; + + iwl_enable_interrupts(trans); + + if (!(iwl_read32(bus(trans), CSR_GP_CNTRL) & + CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)) + hw_rfkill = true; + + if (hw_rfkill) + set_bit(STATUS_RF_KILL_HW, &trans->shrd->status); + else + clear_bit(STATUS_RF_KILL_HW, &trans->shrd->status); + + wiphy_rfkill_set_hw_state(priv(trans)->hw->wiphy, hw_rfkill); + + return 0; +} +#else /* CONFIG_PM */ +static int iwl_trans_pcie_suspend(struct iwl_trans *trans) +{ return 0; } + +static int iwl_trans_pcie_resume(struct iwl_trans *trans) +{ return 0; } + +#endif /* CONFIG_PM */ + +static void iwl_trans_pcie_wake_any_queue(struct iwl_trans *trans, + u8 ctx) +{ + u8 ac, txq_id; + struct iwl_trans_pcie *trans_pcie = + IWL_TRANS_GET_PCIE_TRANS(trans); + + for (ac = 0; ac < AC_NUM; ac++) { + txq_id = trans_pcie->ac_to_queue[ctx][ac]; + IWL_DEBUG_INFO(trans, "Queue Status: Q[%d] %s\n", + ac, + (atomic_read(&trans_pcie->queue_stop_count[ac]) > 0) + ? "stopped" : "awake"); + iwl_wake_queue(trans, &trans_pcie->txq[txq_id]); + } } -static void iwl_trans_free(struct iwl_priv *priv) +const struct iwl_trans_ops trans_ops_pcie; + +static struct iwl_trans *iwl_trans_pcie_alloc(struct iwl_shared *shrd) { - free_irq(priv->bus->irq, priv); - iwl_free_isr_ict(priv); + struct iwl_trans *iwl_trans = kzalloc(sizeof(struct iwl_trans) + + sizeof(struct iwl_trans_pcie), + GFP_KERNEL); + if (iwl_trans) { + struct iwl_trans_pcie *trans_pcie = + IWL_TRANS_GET_PCIE_TRANS(iwl_trans); + iwl_trans->ops = &trans_ops_pcie; + iwl_trans->shrd = shrd; + trans_pcie->trans = iwl_trans; + spin_lock_init(&iwl_trans->hcmd_lock); + } + + return iwl_trans; } -static const struct iwl_trans_ops trans_ops = { - .start_device = iwl_trans_start_device, - .prepare_card_hw = iwl_trans_prepare_card_hw, - .stop_device = iwl_trans_stop_device, +static void iwl_trans_pcie_stop_queue(struct iwl_trans *trans, int txq_id) +{ + struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); + + iwl_stop_queue(trans, &trans_pcie->txq[txq_id]); +} - .tx_start = iwl_trans_tx_start, +#define IWL_FLUSH_WAIT_MS 2000 - .rx_free = iwl_trans_rx_free, - .tx_free = iwl_trans_tx_free, +static int iwl_trans_pcie_wait_tx_queue_empty(struct iwl_trans *trans) +{ + struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); + struct iwl_tx_queue *txq; + struct iwl_queue *q; + int cnt; + unsigned long now = jiffies; + int ret = 0; + + /* waiting for all the tx frames complete might take a while */ + for (cnt = 0; cnt < hw_params(trans).max_txq_num; cnt++) { + if (cnt == trans->shrd->cmd_queue) + continue; + txq = &trans_pcie->txq[cnt]; + q = &txq->q; + while (q->read_ptr != q->write_ptr && !time_after(jiffies, + now + msecs_to_jiffies(IWL_FLUSH_WAIT_MS))) + msleep(1); + + if (q->read_ptr != q->write_ptr) { + IWL_ERR(trans, "fail to flush all tx fifo queues\n"); + ret = -ETIMEDOUT; + break; + } + } + return ret; +} - .send_cmd = iwl_send_cmd, - .send_cmd_pdu = iwl_send_cmd_pdu, +/* + * On every watchdog tick we check (latest) time stamp. If it does not + * change during timeout period and queue is not empty we reset firmware. + */ +static int iwl_trans_pcie_check_stuck_queue(struct iwl_trans *trans, int cnt) +{ + struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); + struct iwl_tx_queue *txq = &trans_pcie->txq[cnt]; + struct iwl_queue *q = &txq->q; + unsigned long timeout; - .get_tx_cmd = iwl_trans_get_tx_cmd, - .tx = iwl_trans_tx, + if (q->read_ptr == q->write_ptr) { + txq->time_stamp = jiffies; + return 0; + } - .txq_agg_disable = iwl_trans_txq_agg_disable, - .txq_agg_setup = iwl_trans_txq_agg_setup, + timeout = txq->time_stamp + + msecs_to_jiffies(hw_params(trans).wd_timeout); - .kick_nic = iwl_trans_kick_nic, + if (time_after(jiffies, timeout)) { + IWL_ERR(trans, "Queue %d stuck for %u ms.\n", q->id, + hw_params(trans).wd_timeout); + return 1; + } - .sync_irq = iwl_trans_sync_irq, - .free = iwl_trans_free, + return 0; +} + +#ifdef CONFIG_IWLWIFI_DEBUGFS +/* create and remove of files */ +#define DEBUGFS_ADD_FILE(name, parent, mode) do { \ + if (!debugfs_create_file(#name, mode, parent, trans, \ + &iwl_dbgfs_##name##_ops)) \ + return -ENOMEM; \ +} while (0) + +/* file operation */ +#define DEBUGFS_READ_FUNC(name) \ +static ssize_t iwl_dbgfs_##name##_read(struct file *file, \ + char __user *user_buf, \ + size_t count, loff_t *ppos); + +#define DEBUGFS_WRITE_FUNC(name) \ +static ssize_t iwl_dbgfs_##name##_write(struct file *file, \ + const char __user *user_buf, \ + size_t count, loff_t *ppos); + + +static int iwl_dbgfs_open_file_generic(struct inode *inode, struct file *file) +{ + file->private_data = inode->i_private; + return 0; +} + +#define DEBUGFS_READ_FILE_OPS(name) \ + DEBUGFS_READ_FUNC(name); \ +static const struct file_operations iwl_dbgfs_##name##_ops = { \ + .read = iwl_dbgfs_##name##_read, \ + .open = iwl_dbgfs_open_file_generic, \ + .llseek = generic_file_llseek, \ +}; + +#define DEBUGFS_WRITE_FILE_OPS(name) \ + DEBUGFS_WRITE_FUNC(name); \ +static const struct file_operations iwl_dbgfs_##name##_ops = { \ + .write = iwl_dbgfs_##name##_write, \ + .open = iwl_dbgfs_open_file_generic, \ + .llseek = generic_file_llseek, \ +}; + +#define DEBUGFS_READ_WRITE_FILE_OPS(name) \ + DEBUGFS_READ_FUNC(name); \ + DEBUGFS_WRITE_FUNC(name); \ +static const struct file_operations iwl_dbgfs_##name##_ops = { \ + .write = iwl_dbgfs_##name##_write, \ + .read = iwl_dbgfs_##name##_read, \ + .open = iwl_dbgfs_open_file_generic, \ + .llseek = generic_file_llseek, \ }; -int iwl_trans_register(struct iwl_trans *trans, struct iwl_priv *priv) +static ssize_t iwl_dbgfs_traffic_log_read(struct file *file, + char __user *user_buf, + size_t count, loff_t *ppos) { - int err; + struct iwl_trans *trans = file->private_data; + struct iwl_priv *priv = priv(trans); + int pos = 0, ofs = 0; + int cnt = 0, entry; + struct iwl_trans_pcie *trans_pcie = + IWL_TRANS_GET_PCIE_TRANS(trans); + struct iwl_tx_queue *txq; + struct iwl_queue *q; + struct iwl_rx_queue *rxq = &trans_pcie->rxq; + char *buf; + int bufsz = ((IWL_TRAFFIC_ENTRIES * IWL_TRAFFIC_ENTRY_SIZE * 64) * 2) + + (hw_params(trans).max_txq_num * 32 * 8) + 400; + const u8 *ptr; + ssize_t ret; + + if (!trans_pcie->txq) { + IWL_ERR(trans, "txq not ready\n"); + return -EAGAIN; + } + buf = kzalloc(bufsz, GFP_KERNEL); + if (!buf) { + IWL_ERR(trans, "Can not allocate buffer\n"); + return -ENOMEM; + } + pos += scnprintf(buf + pos, bufsz - pos, "Tx Queue\n"); + for (cnt = 0; cnt < hw_params(trans).max_txq_num; cnt++) { + txq = &trans_pcie->txq[cnt]; + q = &txq->q; + pos += scnprintf(buf + pos, bufsz - pos, + "q[%d]: read_ptr: %u, write_ptr: %u\n", + cnt, q->read_ptr, q->write_ptr); + } + if (priv->tx_traffic && + (iwl_get_debug_level(trans->shrd) & IWL_DL_TX)) { + ptr = priv->tx_traffic; + pos += scnprintf(buf + pos, bufsz - pos, + "Tx Traffic idx: %u\n", priv->tx_traffic_idx); + for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) { + for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16; + entry++, ofs += 16) { + pos += scnprintf(buf + pos, bufsz - pos, + "0x%.4x ", ofs); + hex_dump_to_buffer(ptr + ofs, 16, 16, 2, + buf + pos, bufsz - pos, 0); + pos += strlen(buf + pos); + if (bufsz - pos > 0) + buf[pos++] = '\n'; + } + } + } - priv->trans.ops = &trans_ops; - priv->trans.priv = priv; + pos += scnprintf(buf + pos, bufsz - pos, "Rx Queue\n"); + pos += scnprintf(buf + pos, bufsz - pos, + "read: %u, write: %u\n", + rxq->read, rxq->write); + + if (priv->rx_traffic && + (iwl_get_debug_level(trans->shrd) & IWL_DL_RX)) { + ptr = priv->rx_traffic; + pos += scnprintf(buf + pos, bufsz - pos, + "Rx Traffic idx: %u\n", priv->rx_traffic_idx); + for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) { + for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16; + entry++, ofs += 16) { + pos += scnprintf(buf + pos, bufsz - pos, + "0x%.4x ", ofs); + hex_dump_to_buffer(ptr + ofs, 16, 16, 2, + buf + pos, bufsz - pos, 0); + pos += strlen(buf + pos); + if (bufsz - pos > 0) + buf[pos++] = '\n'; + } + } + } - tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long)) - iwl_irq_tasklet, (unsigned long)priv); + ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); + kfree(buf); + return ret; +} - iwl_alloc_isr_ict(priv); +static ssize_t iwl_dbgfs_traffic_log_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct iwl_trans *trans = file->private_data; + char buf[8]; + int buf_size; + int traffic_log; + + memset(buf, 0, sizeof(buf)); + buf_size = min(count, sizeof(buf) - 1); + if (copy_from_user(buf, user_buf, buf_size)) + return -EFAULT; + if (sscanf(buf, "%d", &traffic_log) != 1) + return -EFAULT; + if (traffic_log == 0) + iwl_reset_traffic_log(priv(trans)); + + return count; +} - err = request_irq(priv->bus->irq, iwl_isr_ict, IRQF_SHARED, - DRV_NAME, priv); - if (err) { - IWL_ERR(priv, "Error allocating IRQ %d\n", priv->bus->irq); - iwl_free_isr_ict(priv); - return err; +static ssize_t iwl_dbgfs_tx_queue_read(struct file *file, + char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct iwl_trans *trans = file->private_data; + struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); + struct iwl_priv *priv = priv(trans); + struct iwl_tx_queue *txq; + struct iwl_queue *q; + char *buf; + int pos = 0; + int cnt; + int ret; + const size_t bufsz = sizeof(char) * 64 * hw_params(trans).max_txq_num; + + if (!trans_pcie->txq) { + IWL_ERR(priv, "txq not ready\n"); + return -EAGAIN; + } + buf = kzalloc(bufsz, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + for (cnt = 0; cnt < hw_params(trans).max_txq_num; cnt++) { + txq = &trans_pcie->txq[cnt]; + q = &txq->q; + pos += scnprintf(buf + pos, bufsz - pos, + "hwq %.2d: read=%u write=%u stop=%d" + " swq_id=%#.2x (ac %d/hwq %d)\n", + cnt, q->read_ptr, q->write_ptr, + !!test_bit(cnt, trans_pcie->queue_stopped), + txq->swq_id, txq->swq_id & 3, + (txq->swq_id >> 2) & 0x1f); + if (cnt >= 4) + continue; + /* for the ACs, display the stop count too */ + pos += scnprintf(buf + pos, bufsz - pos, + " stop-count: %d\n", + atomic_read(&trans_pcie->queue_stop_count[cnt])); + } + ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); + kfree(buf); + return ret; +} + +static ssize_t iwl_dbgfs_rx_queue_read(struct file *file, + char __user *user_buf, + size_t count, loff_t *ppos) { + struct iwl_trans *trans = file->private_data; + struct iwl_trans_pcie *trans_pcie = + IWL_TRANS_GET_PCIE_TRANS(trans); + struct iwl_rx_queue *rxq = &trans_pcie->rxq; + char buf[256]; + int pos = 0; + const size_t bufsz = sizeof(buf); + + pos += scnprintf(buf + pos, bufsz - pos, "read: %u\n", + rxq->read); + pos += scnprintf(buf + pos, bufsz - pos, "write: %u\n", + rxq->write); + pos += scnprintf(buf + pos, bufsz - pos, "free_count: %u\n", + rxq->free_count); + if (rxq->rb_stts) { + pos += scnprintf(buf + pos, bufsz - pos, "closed_rb_num: %u\n", + le16_to_cpu(rxq->rb_stts->closed_rb_num) & 0x0FFF); + } else { + pos += scnprintf(buf + pos, bufsz - pos, + "closed_rb_num: Not Allocated\n"); + } + return simple_read_from_buffer(user_buf, count, ppos, buf, pos); +} + +static ssize_t iwl_dbgfs_log_event_read(struct file *file, + char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct iwl_trans *trans = file->private_data; + char *buf; + int pos = 0; + ssize_t ret = -ENOMEM; + + ret = pos = iwl_dump_nic_event_log(trans, true, &buf, true); + if (buf) { + ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); + kfree(buf); + } + return ret; +} + +static ssize_t iwl_dbgfs_log_event_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct iwl_trans *trans = file->private_data; + u32 event_log_flag; + char buf[8]; + int buf_size; + + memset(buf, 0, sizeof(buf)); + buf_size = min(count, sizeof(buf) - 1); + if (copy_from_user(buf, user_buf, buf_size)) + return -EFAULT; + if (sscanf(buf, "%d", &event_log_flag) != 1) + return -EFAULT; + if (event_log_flag == 1) + iwl_dump_nic_event_log(trans, true, NULL, false); + + return count; +} + +static ssize_t iwl_dbgfs_interrupt_read(struct file *file, + char __user *user_buf, + size_t count, loff_t *ppos) { + + struct iwl_trans *trans = file->private_data; + struct iwl_trans_pcie *trans_pcie = + IWL_TRANS_GET_PCIE_TRANS(trans); + struct isr_statistics *isr_stats = &trans_pcie->isr_stats; + + int pos = 0; + char *buf; + int bufsz = 24 * 64; /* 24 items * 64 char per item */ + ssize_t ret; + + buf = kzalloc(bufsz, GFP_KERNEL); + if (!buf) { + IWL_ERR(trans, "Can not allocate Buffer\n"); + return -ENOMEM; + } + + pos += scnprintf(buf + pos, bufsz - pos, + "Interrupt Statistics Report:\n"); + + pos += scnprintf(buf + pos, bufsz - pos, "HW Error:\t\t\t %u\n", + isr_stats->hw); + pos += scnprintf(buf + pos, bufsz - pos, "SW Error:\t\t\t %u\n", + isr_stats->sw); + if (isr_stats->sw || isr_stats->hw) { + pos += scnprintf(buf + pos, bufsz - pos, + "\tLast Restarting Code: 0x%X\n", + isr_stats->err_code); + } +#ifdef CONFIG_IWLWIFI_DEBUG + pos += scnprintf(buf + pos, bufsz - pos, "Frame transmitted:\t\t %u\n", + isr_stats->sch); + pos += scnprintf(buf + pos, bufsz - pos, "Alive interrupt:\t\t %u\n", + isr_stats->alive); +#endif + pos += scnprintf(buf + pos, bufsz - pos, + "HW RF KILL switch toggled:\t %u\n", isr_stats->rfkill); + + pos += scnprintf(buf + pos, bufsz - pos, "CT KILL:\t\t\t %u\n", + isr_stats->ctkill); + + pos += scnprintf(buf + pos, bufsz - pos, "Wakeup Interrupt:\t\t %u\n", + isr_stats->wakeup); + + pos += scnprintf(buf + pos, bufsz - pos, + "Rx command responses:\t\t %u\n", isr_stats->rx); + + pos += scnprintf(buf + pos, bufsz - pos, "Tx/FH interrupt:\t\t %u\n", + isr_stats->tx); + + pos += scnprintf(buf + pos, bufsz - pos, "Unexpected INTA:\t\t %u\n", + isr_stats->unhandled); + + ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); + kfree(buf); + return ret; +} + +static ssize_t iwl_dbgfs_interrupt_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct iwl_trans *trans = file->private_data; + struct iwl_trans_pcie *trans_pcie = + IWL_TRANS_GET_PCIE_TRANS(trans); + struct isr_statistics *isr_stats = &trans_pcie->isr_stats; + + char buf[8]; + int buf_size; + u32 reset_flag; + + memset(buf, 0, sizeof(buf)); + buf_size = min(count, sizeof(buf) - 1); + if (copy_from_user(buf, user_buf, buf_size)) + return -EFAULT; + if (sscanf(buf, "%x", &reset_flag) != 1) + return -EFAULT; + if (reset_flag == 0) + memset(isr_stats, 0, sizeof(*isr_stats)); + + return count; +} + +static const char *get_csr_string(int cmd) +{ + switch (cmd) { + IWL_CMD(CSR_HW_IF_CONFIG_REG); + IWL_CMD(CSR_INT_COALESCING); + IWL_CMD(CSR_INT); + IWL_CMD(CSR_INT_MASK); + IWL_CMD(CSR_FH_INT_STATUS); + IWL_CMD(CSR_GPIO_IN); + IWL_CMD(CSR_RESET); + IWL_CMD(CSR_GP_CNTRL); + IWL_CMD(CSR_HW_REV); + IWL_CMD(CSR_EEPROM_REG); + IWL_CMD(CSR_EEPROM_GP); + IWL_CMD(CSR_OTP_GP_REG); + IWL_CMD(CSR_GIO_REG); + IWL_CMD(CSR_GP_UCODE_REG); + IWL_CMD(CSR_GP_DRIVER_REG); + IWL_CMD(CSR_UCODE_DRV_GP1); + IWL_CMD(CSR_UCODE_DRV_GP2); + IWL_CMD(CSR_LED_REG); + IWL_CMD(CSR_DRAM_INT_TBL_REG); + IWL_CMD(CSR_GIO_CHICKEN_BITS); + IWL_CMD(CSR_ANA_PLL_CFG); + IWL_CMD(CSR_HW_REV_WA_REG); + IWL_CMD(CSR_DBG_HPET_MEM_REG); + default: + return "UNKNOWN"; + } +} + +void iwl_dump_csr(struct iwl_trans *trans) +{ + int i; + static const u32 csr_tbl[] = { + CSR_HW_IF_CONFIG_REG, + CSR_INT_COALESCING, + CSR_INT, + CSR_INT_MASK, + CSR_FH_INT_STATUS, + CSR_GPIO_IN, + CSR_RESET, + CSR_GP_CNTRL, + CSR_HW_REV, + CSR_EEPROM_REG, + CSR_EEPROM_GP, + CSR_OTP_GP_REG, + CSR_GIO_REG, + CSR_GP_UCODE_REG, + CSR_GP_DRIVER_REG, + CSR_UCODE_DRV_GP1, + CSR_UCODE_DRV_GP2, + CSR_LED_REG, + CSR_DRAM_INT_TBL_REG, + CSR_GIO_CHICKEN_BITS, + CSR_ANA_PLL_CFG, + CSR_HW_REV_WA_REG, + CSR_DBG_HPET_MEM_REG + }; + IWL_ERR(trans, "CSR values:\n"); + IWL_ERR(trans, "(2nd byte of CSR_INT_COALESCING is " + "CSR_INT_PERIODIC_REG)\n"); + for (i = 0; i < ARRAY_SIZE(csr_tbl); i++) { + IWL_ERR(trans, " %25s: 0X%08x\n", + get_csr_string(csr_tbl[i]), + iwl_read32(bus(trans), csr_tbl[i])); } +} + +static ssize_t iwl_dbgfs_csr_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct iwl_trans *trans = file->private_data; + char buf[8]; + int buf_size; + int csr; - INIT_WORK(&priv->rx_replenish, iwl_bg_rx_replenish); + memset(buf, 0, sizeof(buf)); + buf_size = min(count, sizeof(buf) - 1); + if (copy_from_user(buf, user_buf, buf_size)) + return -EFAULT; + if (sscanf(buf, "%d", &csr) != 1) + return -EFAULT; + iwl_dump_csr(trans); + + return count; +} + +static const char *get_fh_string(int cmd) +{ + switch (cmd) { + IWL_CMD(FH_RSCSR_CHNL0_STTS_WPTR_REG); + IWL_CMD(FH_RSCSR_CHNL0_RBDCB_BASE_REG); + IWL_CMD(FH_RSCSR_CHNL0_WPTR); + IWL_CMD(FH_MEM_RCSR_CHNL0_CONFIG_REG); + IWL_CMD(FH_MEM_RSSR_SHARED_CTRL_REG); + IWL_CMD(FH_MEM_RSSR_RX_STATUS_REG); + IWL_CMD(FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV); + IWL_CMD(FH_TSSR_TX_STATUS_REG); + IWL_CMD(FH_TSSR_TX_ERROR_REG); + default: + return "UNKNOWN"; + } +} + +int iwl_dump_fh(struct iwl_trans *trans, char **buf, bool display) +{ + int i; +#ifdef CONFIG_IWLWIFI_DEBUG + int pos = 0; + size_t bufsz = 0; +#endif + static const u32 fh_tbl[] = { + FH_RSCSR_CHNL0_STTS_WPTR_REG, + FH_RSCSR_CHNL0_RBDCB_BASE_REG, + FH_RSCSR_CHNL0_WPTR, + FH_MEM_RCSR_CHNL0_CONFIG_REG, + FH_MEM_RSSR_SHARED_CTRL_REG, + FH_MEM_RSSR_RX_STATUS_REG, + FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV, + FH_TSSR_TX_STATUS_REG, + FH_TSSR_TX_ERROR_REG + }; +#ifdef CONFIG_IWLWIFI_DEBUG + if (display) { + bufsz = ARRAY_SIZE(fh_tbl) * 48 + 40; + *buf = kmalloc(bufsz, GFP_KERNEL); + if (!*buf) + return -ENOMEM; + pos += scnprintf(*buf + pos, bufsz - pos, + "FH register values:\n"); + for (i = 0; i < ARRAY_SIZE(fh_tbl); i++) { + pos += scnprintf(*buf + pos, bufsz - pos, + " %34s: 0X%08x\n", + get_fh_string(fh_tbl[i]), + iwl_read_direct32(bus(trans), fh_tbl[i])); + } + return pos; + } +#endif + IWL_ERR(trans, "FH register values:\n"); + for (i = 0; i < ARRAY_SIZE(fh_tbl); i++) { + IWL_ERR(trans, " %34s: 0X%08x\n", + get_fh_string(fh_tbl[i]), + iwl_read_direct32(bus(trans), fh_tbl[i])); + } return 0; } + +static ssize_t iwl_dbgfs_fh_reg_read(struct file *file, + char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct iwl_trans *trans = file->private_data; + char *buf; + int pos = 0; + ssize_t ret = -EFAULT; + + ret = pos = iwl_dump_fh(trans, &buf, true); + if (buf) { + ret = simple_read_from_buffer(user_buf, + count, ppos, buf, pos); + kfree(buf); + } + + return ret; +} + +DEBUGFS_READ_WRITE_FILE_OPS(traffic_log); +DEBUGFS_READ_WRITE_FILE_OPS(log_event); +DEBUGFS_READ_WRITE_FILE_OPS(interrupt); +DEBUGFS_READ_FILE_OPS(fh_reg); +DEBUGFS_READ_FILE_OPS(rx_queue); +DEBUGFS_READ_FILE_OPS(tx_queue); +DEBUGFS_WRITE_FILE_OPS(csr); + +/* + * Create the debugfs files and directories + * + */ +static int iwl_trans_pcie_dbgfs_register(struct iwl_trans *trans, + struct dentry *dir) +{ + DEBUGFS_ADD_FILE(traffic_log, dir, S_IWUSR | S_IRUSR); + DEBUGFS_ADD_FILE(rx_queue, dir, S_IRUSR); + DEBUGFS_ADD_FILE(tx_queue, dir, S_IRUSR); + DEBUGFS_ADD_FILE(log_event, dir, S_IWUSR | S_IRUSR); + DEBUGFS_ADD_FILE(interrupt, dir, S_IWUSR | S_IRUSR); + DEBUGFS_ADD_FILE(csr, dir, S_IWUSR); + DEBUGFS_ADD_FILE(fh_reg, dir, S_IRUSR); + return 0; +} +#else +static int iwl_trans_pcie_dbgfs_register(struct iwl_trans *trans, + struct dentry *dir) +{ return 0; } + +#endif /*CONFIG_IWLWIFI_DEBUGFS */ + +const struct iwl_trans_ops trans_ops_pcie = { + .alloc = iwl_trans_pcie_alloc, + .request_irq = iwl_trans_pcie_request_irq, + .start_device = iwl_trans_pcie_start_device, + .prepare_card_hw = iwl_trans_pcie_prepare_card_hw, + .stop_device = iwl_trans_pcie_stop_device, + + .tx_start = iwl_trans_pcie_tx_start, + .wake_any_queue = iwl_trans_pcie_wake_any_queue, + + .send_cmd = iwl_trans_pcie_send_cmd, + .send_cmd_pdu = iwl_trans_pcie_send_cmd_pdu, + + .tx = iwl_trans_pcie_tx, + .reclaim = iwl_trans_pcie_reclaim, + + .tx_agg_disable = iwl_trans_pcie_tx_agg_disable, + .tx_agg_alloc = iwl_trans_pcie_tx_agg_alloc, + .tx_agg_setup = iwl_trans_pcie_tx_agg_setup, + + .kick_nic = iwl_trans_pcie_kick_nic, + + .free = iwl_trans_pcie_free, + .stop_queue = iwl_trans_pcie_stop_queue, + + .dbgfs_register = iwl_trans_pcie_dbgfs_register, + + .wait_tx_queue_empty = iwl_trans_pcie_wait_tx_queue_empty, + .check_stuck_queue = iwl_trans_pcie_check_stuck_queue, + + .suspend = iwl_trans_pcie_suspend, + .resume = iwl_trans_pcie_resume, +}; + |