From: Emmanuel Grumbach Date: Fri, 26 Aug 2011 06:10:51 +0000 (-0700) Subject: iwlagn: iwl_rx_queue moves to the iwl_trans_pcie X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=5a878bf60b2bb1f1509f49b8b1784e3c9f204c64;p=openwrt%2Fstaging%2Fblogic.git iwlagn: iwl_rx_queue moves to the iwl_trans_pcie Since this struct is specific to pcie transport, move it the the pcie specific transport layer. Signed-off-by: Emmanuel Grumbach Signed-off-by: Wey-Yi Guy Signed-off-by: John W. Linville --- diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h index 4f65b0980a1f..9c9dc1983740 100644 --- a/drivers/net/wireless/iwlwifi/iwl-dev.h +++ b/drivers/net/wireless/iwlwifi/iwl-dev.h @@ -91,14 +91,6 @@ struct iwl_tx_queue; #define DEFAULT_SHORT_RETRY_LIMIT 7U #define DEFAULT_LONG_RETRY_LIMIT 4U -struct iwl_rx_mem_buffer { - dma_addr_t page_dma; - struct page *page; - struct list_head list; -}; - -#define rxb_addr(r) page_address(r->page) - /* defined below */ struct iwl_device_cmd; @@ -335,38 +327,6 @@ struct iwl_host_cmd { #define SUP_RATE_11B_MAX_NUM_CHANNELS 4 #define SUP_RATE_11G_MAX_NUM_CHANNELS 12 -/** - * struct iwl_rx_queue - Rx queue - * @bd: driver's pointer to buffer of receive buffer descriptors (rbd) - * @bd_dma: bus address of buffer of receive buffer descriptors (rbd) - * @read: Shared index to newest available Rx buffer - * @write: Shared index to oldest written Rx packet - * @free_count: Number of pre-allocated buffers in rx_free - * @rx_free: list of free SKBs for use - * @rx_used: List of Rx buffers with no SKB - * @need_update: flag to indicate we need to update read/write index - * @rb_stts: driver's pointer to receive buffer status - * @rb_stts_dma: bus address of receive buffer status - * - * NOTE: rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers - */ -struct iwl_rx_queue { - __le32 *bd; - dma_addr_t bd_dma; - struct iwl_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS]; - struct iwl_rx_mem_buffer *queue[RX_QUEUE_SIZE]; - u32 read; - u32 write; - u32 free_count; - u32 write_actual; - struct list_head rx_free; - struct list_head rx_used; - int need_update; - struct iwl_rb_status *rb_stts; - dma_addr_t rb_stts_dma; - spinlock_t lock; -}; - #define IWL_SUPPORTED_RATES_IE_LEN 8 #define MAX_TID_COUNT 9 @@ -1286,8 +1246,7 @@ struct iwl_priv { int activity_timer_active; - /* Rx and Tx DMA processing queues */ - struct iwl_rx_queue rxq; + /* Tx DMA processing queues */ struct iwl_tx_queue *txq; unsigned long txq_ctx_active_msk; struct iwl_dma_ptr kw; /* keep warm address */ @@ -1426,7 +1385,6 @@ struct iwl_priv { struct work_struct restart; struct work_struct scan_completed; - struct work_struct rx_replenish; struct work_struct abort_scan; struct work_struct beacon_update; diff --git a/drivers/net/wireless/iwlwifi/iwl-shared.h b/drivers/net/wireless/iwlwifi/iwl-shared.h index 467cfaacd698..539b76ba870a 100644 --- a/drivers/net/wireless/iwlwifi/iwl-shared.h +++ b/drivers/net/wireless/iwlwifi/iwl-shared.h @@ -205,6 +205,14 @@ static inline u32 iwl_get_debug_level(struct iwl_shared *shrd) } #endif +struct iwl_rx_mem_buffer { + dma_addr_t page_dma; + struct page *page; + struct list_head list; +}; + +#define rxb_addr(r) page_address(r->page) + #ifdef CONFIG_PM int iwl_suspend(struct iwl_priv *priv); int iwl_resume(struct iwl_priv *priv); diff --git a/drivers/net/wireless/iwlwifi/iwl-trans-int-pcie.h b/drivers/net/wireless/iwlwifi/iwl-trans-int-pcie.h index 2bc421b43a91..1d80515c1dbf 100644 --- a/drivers/net/wireless/iwlwifi/iwl-trans-int-pcie.h +++ b/drivers/net/wireless/iwlwifi/iwl-trans-int-pcie.h @@ -32,19 +32,64 @@ /*This file includes the declaration that are internal to the * trans_pcie layer */ +/** + * struct iwl_rx_queue - Rx queue + * @bd: driver's pointer to buffer of receive buffer descriptors (rbd) + * @bd_dma: bus address of buffer of receive buffer descriptors (rbd) + * @pool: + * @queue: + * @read: Shared index to newest available Rx buffer + * @write: Shared index to oldest written Rx packet + * @free_count: Number of pre-allocated buffers in rx_free + * @write_actual: + * @rx_free: list of free SKBs for use + * @rx_used: List of Rx buffers with no SKB + * @need_update: flag to indicate we need to update read/write index + * @rb_stts: driver's pointer to receive buffer status + * @rb_stts_dma: bus address of receive buffer status + * @lock: + * + * NOTE: rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers + */ +struct iwl_rx_queue { + __le32 *bd; + dma_addr_t bd_dma; + struct iwl_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS]; + struct iwl_rx_mem_buffer *queue[RX_QUEUE_SIZE]; + u32 read; + u32 write; + u32 free_count; + u32 write_actual; + struct list_head rx_free; + struct list_head rx_used; + int need_update; + struct iwl_rb_status *rb_stts; + dma_addr_t rb_stts_dma; + spinlock_t lock; +}; + /** * struct iwl_trans_pcie - PCIe transport specific data + * @rxq: all the RX queue data + * @rx_replenish: work that will be called when buffers need to be allocated + * @trans: pointer to the generic transport area */ struct iwl_trans_pcie { + struct iwl_rx_queue rxq; + struct work_struct rx_replenish; + struct iwl_trans *trans; }; +#define IWL_TRANS_GET_PCIE_TRANS(_iwl_trans) \ + ((struct iwl_trans_pcie *) ((_iwl_trans)->trans_specific)) + /***************************************************** * RX ******************************************************/ void iwl_bg_rx_replenish(struct work_struct *data); void iwl_irq_tasklet(struct iwl_priv *priv); -void iwlagn_rx_replenish(struct iwl_priv *priv); -void iwl_rx_queue_update_write_ptr(struct iwl_priv *priv, +void iwlagn_rx_replenish(struct iwl_trans *trans); +void iwl_rx_queue_update_write_ptr(struct iwl_trans *trans, struct iwl_rx_queue *q); /***************************************************** diff --git a/drivers/net/wireless/iwlwifi/iwl-trans-rx-pcie.c b/drivers/net/wireless/iwlwifi/iwl-trans-rx-pcie.c index 6f5edf731542..fb06acf83fc6 100644 --- a/drivers/net/wireless/iwlwifi/iwl-trans-rx-pcie.c +++ b/drivers/net/wireless/iwlwifi/iwl-trans-rx-pcie.c @@ -127,9 +127,10 @@ static int iwl_rx_queue_space(const struct iwl_rx_queue *q) /** * iwl_rx_queue_update_write_ptr - Update the write pointer for the RX queue */ -void iwl_rx_queue_update_write_ptr(struct iwl_priv *priv, +void iwl_rx_queue_update_write_ptr(struct iwl_trans *trans, struct iwl_rx_queue *q) { + struct iwl_priv *priv = priv(trans); unsigned long flags; u32 reg; @@ -145,11 +146,11 @@ void iwl_rx_queue_update_write_ptr(struct iwl_priv *priv, iwl_write32(priv, FH_RSCSR_CHNL0_WPTR, q->write_actual); } else { /* If power-saving is in use, make sure device is awake */ - if (test_bit(STATUS_POWER_PMI, &priv->shrd->status)) { + if (test_bit(STATUS_POWER_PMI, &trans->shrd->status)) { reg = iwl_read32(priv, CSR_UCODE_DRV_GP1); if (reg & CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP) { - IWL_DEBUG_INFO(priv, + IWL_DEBUG_INFO(trans, "Rx queue requesting wakeup," " GP1 = 0x%x\n", reg); iwl_set_bit(priv, CSR_GP_CNTRL, @@ -178,8 +179,7 @@ void iwl_rx_queue_update_write_ptr(struct iwl_priv *priv, /** * iwlagn_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr */ -static inline __le32 iwlagn_dma_addr2rbd_ptr(struct iwl_priv *priv, - dma_addr_t dma_addr) +static inline __le32 iwlagn_dma_addr2rbd_ptr(dma_addr_t dma_addr) { return cpu_to_le32((u32)(dma_addr >> 8)); } @@ -195,9 +195,12 @@ static inline __le32 iwlagn_dma_addr2rbd_ptr(struct iwl_priv *priv, * also updates the memory address in the firmware to reference the new * target buffer. */ -static void iwlagn_rx_queue_restock(struct iwl_priv *priv) +static void iwlagn_rx_queue_restock(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; struct list_head *element; struct iwl_rx_mem_buffer *rxb; unsigned long flags; @@ -214,8 +217,7 @@ static void iwlagn_rx_queue_restock(struct iwl_priv *priv) list_del(element); /* Point to Rx buffer via next RBD in circular buffer */ - rxq->bd[rxq->write] = iwlagn_dma_addr2rbd_ptr(priv, - rxb->page_dma); + rxq->bd[rxq->write] = iwlagn_dma_addr2rbd_ptr(rxb->page_dma); rxq->queue[rxq->write] = rxb; rxq->write = (rxq->write + 1) & RX_QUEUE_MASK; rxq->free_count--; @@ -224,7 +226,7 @@ static void iwlagn_rx_queue_restock(struct iwl_priv *priv) /* If the pre-allocated buffer pool is dropping low, schedule to * refill it */ if (rxq->free_count <= RX_LOW_WATERMARK) - queue_work(priv->shrd->workqueue, &priv->rx_replenish); + queue_work(trans->shrd->workqueue, &trans_pcie->rx_replenish); /* If we've added more space for the firmware to place data, tell it. @@ -233,7 +235,7 @@ static void iwlagn_rx_queue_restock(struct iwl_priv *priv) spin_lock_irqsave(&rxq->lock, flags); rxq->need_update = 1; spin_unlock_irqrestore(&rxq->lock, flags); - iwl_rx_queue_update_write_ptr(priv, rxq); + iwl_rx_queue_update_write_ptr(trans, rxq); } } @@ -245,9 +247,12 @@ static void iwlagn_rx_queue_restock(struct iwl_priv *priv) * Also restock the Rx queue via iwl_rx_queue_restock. * This is called as a scheduled work item (except for during initialization) */ -static void iwlagn_rx_allocate(struct iwl_priv *priv, gfp_t priority) +static void iwlagn_rx_allocate(struct iwl_trans *trans, gfp_t priority) { - 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; struct list_head *element; struct iwl_rx_mem_buffer *rxb; struct page *page; @@ -265,21 +270,21 @@ static void iwlagn_rx_allocate(struct iwl_priv *priv, gfp_t priority) if (rxq->free_count > RX_LOW_WATERMARK) gfp_mask |= __GFP_NOWARN; - if (hw_params(priv).rx_page_order > 0) + if (hw_params(trans).rx_page_order > 0) gfp_mask |= __GFP_COMP; /* Alloc a new receive buffer */ page = alloc_pages(gfp_mask, - hw_params(priv).rx_page_order); + hw_params(trans).rx_page_order); if (!page) { if (net_ratelimit()) - IWL_DEBUG_INFO(priv, "alloc_pages failed, " + IWL_DEBUG_INFO(trans, "alloc_pages failed, " "order: %d\n", - hw_params(priv).rx_page_order); + hw_params(trans).rx_page_order); if ((rxq->free_count <= RX_LOW_WATERMARK) && net_ratelimit()) - IWL_CRIT(priv, "Failed to alloc_pages with %s." + IWL_CRIT(trans, "Failed to alloc_pages with %s." "Only %u free buffers remaining.\n", priority == GFP_ATOMIC ? "GFP_ATOMIC" : "GFP_KERNEL", @@ -294,7 +299,7 @@ static void iwlagn_rx_allocate(struct iwl_priv *priv, gfp_t priority) if (list_empty(&rxq->rx_used)) { spin_unlock_irqrestore(&rxq->lock, flags); - __free_pages(page, hw_params(priv).rx_page_order); + __free_pages(page, hw_params(trans).rx_page_order); return; } element = rxq->rx_used.next; @@ -306,8 +311,8 @@ static void iwlagn_rx_allocate(struct iwl_priv *priv, gfp_t priority) BUG_ON(rxb->page); rxb->page = page; /* Get physical address of the RB */ - rxb->page_dma = dma_map_page(priv->bus->dev, page, 0, - PAGE_SIZE << hw_params(priv).rx_page_order, + rxb->page_dma = dma_map_page(bus(trans)->dev, page, 0, + PAGE_SIZE << hw_params(trans).rx_page_order, DMA_FROM_DEVICE); /* dma address must be no more than 36 bits */ BUG_ON(rxb->page_dma & ~DMA_BIT_MASK(36)); @@ -323,35 +328,36 @@ static void iwlagn_rx_allocate(struct iwl_priv *priv, gfp_t priority) } } -void iwlagn_rx_replenish(struct iwl_priv *priv) +void iwlagn_rx_replenish(struct iwl_trans *trans) { unsigned long flags; - iwlagn_rx_allocate(priv, GFP_KERNEL); + iwlagn_rx_allocate(trans, GFP_KERNEL); - spin_lock_irqsave(&priv->shrd->lock, flags); - iwlagn_rx_queue_restock(priv); - spin_unlock_irqrestore(&priv->shrd->lock, flags); + spin_lock_irqsave(&trans->shrd->lock, flags); + iwlagn_rx_queue_restock(trans); + spin_unlock_irqrestore(&trans->shrd->lock, flags); } -static void iwlagn_rx_replenish_now(struct iwl_priv *priv) +static void iwlagn_rx_replenish_now(struct iwl_trans *trans) { - iwlagn_rx_allocate(priv, GFP_ATOMIC); + iwlagn_rx_allocate(trans, GFP_ATOMIC); - iwlagn_rx_queue_restock(priv); + iwlagn_rx_queue_restock(trans); } void iwl_bg_rx_replenish(struct work_struct *data) { - struct iwl_priv *priv = - container_of(data, struct iwl_priv, rx_replenish); + struct iwl_trans_pcie *trans_pcie = + container_of(data, struct iwl_trans_pcie, rx_replenish); + struct iwl_trans *trans = trans_pcie->trans; - if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status)) + if (test_bit(STATUS_EXIT_PENDING, &trans->shrd->status)) return; - mutex_lock(&priv->shrd->mutex); - iwlagn_rx_replenish(priv); - mutex_unlock(&priv->shrd->mutex); + mutex_lock(&trans->shrd->mutex); + iwlagn_rx_replenish(trans); + mutex_unlock(&trans->shrd->mutex); } /** @@ -361,11 +367,13 @@ void iwl_bg_rx_replenish(struct work_struct *data) * the appropriate handlers, including command responses, * frame-received notifications, and other notifications. */ -static void iwl_rx_handle(struct iwl_priv *priv) +static void iwl_rx_handle(struct iwl_trans *trans) { struct iwl_rx_mem_buffer *rxb; struct iwl_rx_packet *pkt; - 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; u32 r, i; int reclaim; unsigned long flags; @@ -380,7 +388,7 @@ static void iwl_rx_handle(struct iwl_priv *priv) /* Rx interrupt, but nothing sent from uCode */ if (i == r) - IWL_DEBUG_RX(priv, "r = %d, i = %d\n", r, i); + IWL_DEBUG_RX(trans, "r = %d, i = %d\n", r, i); /* calculate total frames need to be restock after handling RX */ total_empty = r - rxq->write_actual; @@ -405,17 +413,17 @@ static void iwl_rx_handle(struct iwl_priv *priv) rxq->queue[i] = NULL; - dma_unmap_page(priv->bus->dev, rxb->page_dma, - PAGE_SIZE << hw_params(priv).rx_page_order, + dma_unmap_page(bus(trans)->dev, rxb->page_dma, + PAGE_SIZE << hw_params(trans).rx_page_order, DMA_FROM_DEVICE); pkt = rxb_addr(rxb); - IWL_DEBUG_RX(priv, "r = %d, i = %d, %s, 0x%02x\n", r, + IWL_DEBUG_RX(trans, "r = %d, i = %d, %s, 0x%02x\n", r, i, get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd); len = le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK; len += sizeof(u32); /* account for status word */ - trace_iwlwifi_dev_rx(priv, pkt, len); + trace_iwlwifi_dev_rx(priv(trans), pkt, len); /* Reclaim a command buffer only if this packet is a response * to a (driver-originated) command. @@ -431,7 +439,7 @@ static void iwl_rx_handle(struct iwl_priv *priv) (pkt->hdr.cmd != STATISTICS_NOTIFICATION) && (pkt->hdr.cmd != REPLY_TX); - iwl_rx_dispatch(priv, rxb); + iwl_rx_dispatch(priv(trans), rxb); /* * XXX: After here, we should always check rxb->page @@ -446,9 +454,9 @@ static void iwl_rx_handle(struct iwl_priv *priv) * iwl_trans_send_cmd() * as we reclaim the driver command queue */ if (rxb->page) - iwl_tx_cmd_complete(priv, rxb); + iwl_tx_cmd_complete(priv(trans), rxb); else - IWL_WARN(priv, "Claim null rxb?\n"); + IWL_WARN(trans, "Claim null rxb?\n"); } /* Reuse the page if possible. For notification packets and @@ -456,9 +464,9 @@ static void iwl_rx_handle(struct iwl_priv *priv) * rx_free list for reuse later. */ spin_lock_irqsave(&rxq->lock, flags); if (rxb->page != NULL) { - rxb->page_dma = dma_map_page(priv->bus->dev, rxb->page, + rxb->page_dma = dma_map_page(bus(trans)->dev, rxb->page, 0, PAGE_SIZE << - hw_params(priv).rx_page_order, + hw_params(trans).rx_page_order, DMA_FROM_DEVICE); list_add_tail(&rxb->list, &rxq->rx_free); rxq->free_count++; @@ -474,7 +482,7 @@ static void iwl_rx_handle(struct iwl_priv *priv) count++; if (count >= 8) { rxq->read = i; - iwlagn_rx_replenish_now(priv); + iwlagn_rx_replenish_now(trans); count = 0; } } @@ -483,9 +491,9 @@ static void iwl_rx_handle(struct iwl_priv *priv) /* Backtrack one entry */ rxq->read = i; if (fill_rx) - iwlagn_rx_replenish_now(priv); + iwlagn_rx_replenish_now(trans); else - iwlagn_rx_queue_restock(priv); + iwlagn_rx_queue_restock(trans); } /* tasklet for iwlagn interrupt */ @@ -611,8 +619,10 @@ void iwl_irq_tasklet(struct iwl_priv *priv) /* uCode wakes up after power-down sleep */ if (inta & CSR_INT_BIT_WAKEUP) { + struct iwl_trans_pcie *trans_pcie = + IWL_TRANS_GET_PCIE_TRANS(trans(priv)); IWL_DEBUG_ISR(priv, "Wakeup interrupt\n"); - iwl_rx_queue_update_write_ptr(priv, &priv->rxq); + iwl_rx_queue_update_write_ptr(trans(priv), &trans_pcie->rxq); for (i = 0; i < hw_params(priv).max_txq_num; i++) iwl_txq_update_write_ptr(priv, &priv->txq[i]); @@ -650,7 +660,7 @@ void iwl_irq_tasklet(struct iwl_priv *priv) /* Disable periodic interrupt; we use it as just a one-shot. */ iwl_write8(priv, CSR_INT_PERIODIC_REG, CSR_INT_PERIODIC_DIS); - iwl_rx_handle(priv); + iwl_rx_handle(trans(priv)); /* * Enable periodic interrupt in 8 msec only if we received diff --git a/drivers/net/wireless/iwlwifi/iwl-trans.c b/drivers/net/wireless/iwlwifi/iwl-trans.c index eeeb1304eb37..95d7b04a65f3 100644 --- a/drivers/net/wireless/iwlwifi/iwl-trans.c +++ b/drivers/net/wireless/iwlwifi/iwl-trans.c @@ -73,12 +73,14 @@ #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); @@ -112,9 +114,11 @@ 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 */ @@ -122,10 +126,10 @@ 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 << hw_params(priv).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); + __iwl_free_pages(priv(trans), rxq->pool[i].page); rxq->pool[i].page = NULL; } list_add_tail(&rxq->pool[i].list, &rxq->rx_used); @@ -181,14 +185,17 @@ static void iwl_trans_rx_hw_init(struct iwl_priv *priv, iwl_write8(priv, 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; } @@ -197,7 +204,7 @@ 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; @@ -209,45 +216,48 @@ 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(priv(trans), rxq); - spin_lock_irqsave(&priv->shrd->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->shrd->lock, flags); + iwl_rx_queue_update_write_ptr(trans, rxq); + spin_unlock_irqrestore(&trans->shrd->lock, flags); return 0; } -static void iwl_trans_pcie_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; } @@ -614,7 +624,7 @@ static int iwl_nic_init(struct iwl_priv *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(priv)); /* Allocate or reset and init all Tx and Command queues */ if (iwl_tx_init(priv)) @@ -1120,6 +1130,8 @@ static void iwl_trans_pcie_kick_nic(struct iwl_priv *priv) static int iwl_trans_pcie_request_irq(struct iwl_trans *trans) { + struct iwl_trans_pcie *trans_pcie = + IWL_TRANS_GET_PCIE_TRANS(trans); struct iwl_priv *priv = priv(trans); int err; @@ -1136,7 +1148,7 @@ static int iwl_trans_pcie_request_irq(struct iwl_trans *trans) return err; } - INIT_WORK(&priv->rx_replenish, iwl_bg_rx_replenish); + INIT_WORK(&trans_pcie->rx_replenish, iwl_bg_rx_replenish); return 0; } @@ -1163,8 +1175,11 @@ static struct iwl_trans *iwl_trans_pcie_alloc(struct iwl_shared *shrd) 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; } return iwl_trans; @@ -1173,7 +1188,7 @@ static struct iwl_trans *iwl_trans_pcie_alloc(struct iwl_shared *shrd) #ifdef CONFIG_IWLWIFI_DEBUGFS /* create and remove of files */ #define DEBUGFS_ADD_FILE(name, parent, mode) do { \ - if (!debugfs_create_file(#name, mode, parent, priv, \ + if (!debugfs_create_file(#name, mode, parent, trans, \ &iwl_dbgfs_##name##_ops)) \ return -ENOMEM; \ } while (0) @@ -1218,12 +1233,15 @@ static ssize_t iwl_dbgfs_traffic_log_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { - struct iwl_priv *priv = file->private_data; + 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 = &priv->rxq; + struct iwl_rx_queue *rxq = &trans_pcie->rxq; char *buf; int bufsz = ((IWL_TRAFFIC_ENTRIES * IWL_TRAFFIC_ENTRY_SIZE * 64) * 2) + (priv->cfg->base_params->num_of_queues * 32 * 8) + 400; @@ -1231,16 +1249,16 @@ static ssize_t iwl_dbgfs_traffic_log_read(struct file *file, ssize_t ret; if (!priv->txq) { - IWL_ERR(priv, "txq not ready\n"); + IWL_ERR(trans, "txq not ready\n"); return -EAGAIN; } buf = kzalloc(bufsz, GFP_KERNEL); if (!buf) { - IWL_ERR(priv, "Can not allocate buffer\n"); + 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(priv).max_txq_num; cnt++) { + for (cnt = 0; cnt < hw_params(trans).max_txq_num; cnt++) { txq = &priv->txq[cnt]; q = &txq->q; pos += scnprintf(buf + pos, bufsz - pos, @@ -1248,10 +1266,10 @@ static ssize_t iwl_dbgfs_traffic_log_read(struct file *file, cnt, q->read_ptr, q->write_ptr); } if (priv->tx_traffic && - (iwl_get_debug_level(priv->shrd) & IWL_DL_TX)) { + (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); + "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) { @@ -1272,10 +1290,10 @@ static ssize_t iwl_dbgfs_traffic_log_read(struct file *file, rxq->read, rxq->write); if (priv->rx_traffic && - (iwl_get_debug_level(priv->shrd) & IWL_DL_RX)) { + (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); + "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) { @@ -1299,7 +1317,7 @@ static ssize_t iwl_dbgfs_traffic_log_write(struct file *file, const char __user *user_buf, size_t count, loff_t *ppos) { - struct iwl_priv *priv = file->private_data; + struct iwl_trans *trans = file->private_data; char buf[8]; int buf_size; int traffic_log; @@ -1311,7 +1329,7 @@ static ssize_t iwl_dbgfs_traffic_log_write(struct file *file, if (sscanf(buf, "%d", &traffic_log) != 1) return -EFAULT; if (traffic_log == 0) - iwl_reset_traffic_log(priv); + iwl_reset_traffic_log(priv(trans)); return count; } @@ -1320,7 +1338,8 @@ static ssize_t iwl_dbgfs_tx_queue_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { - struct iwl_priv *priv = file->private_data; + struct iwl_trans *trans = file->private_data; + struct iwl_priv *priv = priv(trans); struct iwl_tx_queue *txq; struct iwl_queue *q; char *buf; @@ -1338,7 +1357,7 @@ static ssize_t iwl_dbgfs_tx_queue_read(struct file *file, if (!buf) return -ENOMEM; - for (cnt = 0; cnt < hw_params(priv).max_txq_num; cnt++) { + for (cnt = 0; cnt < hw_params(trans).max_txq_num; cnt++) { txq = &priv->txq[cnt]; q = &txq->q; pos += scnprintf(buf + pos, bufsz - pos, @@ -1363,8 +1382,10 @@ static ssize_t iwl_dbgfs_tx_queue_read(struct file *file, static ssize_t iwl_dbgfs_rx_queue_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { - struct iwl_priv *priv = file->private_data; - struct iwl_rx_queue *rxq = &priv->rxq; + 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); @@ -1396,8 +1417,6 @@ DEBUGFS_READ_FILE_OPS(tx_queue); static int iwl_trans_pcie_dbgfs_register(struct iwl_trans *trans, struct dentry *dir) { - struct iwl_priv *priv = priv(trans); - 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); diff --git a/drivers/net/wireless/iwlwifi/iwl-trans.h b/drivers/net/wireless/iwlwifi/iwl-trans.h index a9b3157994e9..8eee910b15e8 100644 --- a/drivers/net/wireless/iwlwifi/iwl-trans.h +++ b/drivers/net/wireless/iwlwifi/iwl-trans.h @@ -112,7 +112,7 @@ struct iwl_trans_ops { void (*stop_device)(struct iwl_priv *priv); void (*tx_start)(struct iwl_priv *priv); void (*tx_free)(struct iwl_priv *priv); - void (*rx_free)(struct iwl_priv *priv); + void (*rx_free)(struct iwl_trans *trans); int (*send_cmd)(struct iwl_priv *priv, struct iwl_host_cmd *cmd); @@ -177,7 +177,7 @@ static inline void iwl_trans_tx_start(struct iwl_trans *trans) static inline void iwl_trans_rx_free(struct iwl_trans *trans) { - trans->ops->rx_free(priv(trans)); + trans->ops->rx_free(trans); } static inline void iwl_trans_tx_free(struct iwl_trans *trans)