diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi')
23 files changed, 726 insertions, 593 deletions
diff --git a/drivers/net/wireless/iwlwifi/Makefile b/drivers/net/wireless/iwlwifi/Makefile index 9a56ce546715..19150398a248 100644 --- a/drivers/net/wireless/iwlwifi/Makefile +++ b/drivers/net/wireless/iwlwifi/Makefile @@ -14,6 +14,7 @@ iwlagn-objs += iwl-6000.o iwlagn-objs += iwl-1000.o iwlagn-objs += iwl-2000.o iwlagn-objs += iwl-pci.o +iwlagn-objs += iwl-trans.o iwlagn-$(CONFIG_IWLWIFI_DEBUGFS) += iwl-debugfs.o iwlagn-$(CONFIG_IWLWIFI_DEVICE_TRACING) += iwl-devtrace.o diff --git a/drivers/net/wireless/iwlwifi/iwl-1000.c b/drivers/net/wireless/iwlwifi/iwl-1000.c index e57fad9f1f09..cf1449df4f0b 100644 --- a/drivers/net/wireless/iwlwifi/iwl-1000.c +++ b/drivers/net/wireless/iwlwifi/iwl-1000.c @@ -138,7 +138,6 @@ static int iwl1000_hw_set_hw_params(struct iwl_priv *priv) priv->hw_params.ht40_channel = BIT(IEEE80211_BAND_2GHZ) | BIT(IEEE80211_BAND_5GHZ); - priv->hw_params.rx_wrt_ptr_reg = FH_RSCSR_CHNL0_WPTR; priv->hw_params.tx_chains_num = num_of_ant(priv->cfg->valid_tx_ant); if (priv->cfg->rx_with_siso_diversity) @@ -197,7 +196,6 @@ static struct iwl_lib_ops iwl1000_lib = { static const struct iwl_ops iwl1000_ops = { .lib = &iwl1000_lib, - .hcmd = &iwlagn_hcmd, .utils = &iwlagn_hcmd_utils, }; diff --git a/drivers/net/wireless/iwlwifi/iwl-2000.c b/drivers/net/wireless/iwlwifi/iwl-2000.c index 64ed1f247df0..a401113c065a 100644 --- a/drivers/net/wireless/iwlwifi/iwl-2000.c +++ b/drivers/net/wireless/iwlwifi/iwl-2000.c @@ -50,11 +50,13 @@ #define IWL2030_UCODE_API_MAX 5 #define IWL2000_UCODE_API_MAX 5 #define IWL105_UCODE_API_MAX 5 +#define IWL135_UCODE_API_MAX 5 /* Lowest firmware API version supported */ #define IWL2030_UCODE_API_MIN 5 #define IWL2000_UCODE_API_MIN 5 #define IWL105_UCODE_API_MIN 5 +#define IWL135_UCODE_API_MIN 5 #define IWL2030_FW_PRE "iwlwifi-2030-" #define IWL2030_MODULE_FIRMWARE(api) IWL2030_FW_PRE __stringify(api) ".ucode" @@ -65,6 +67,9 @@ #define IWL105_FW_PRE "iwlwifi-105-" #define IWL105_MODULE_FIRMWARE(api) IWL105_FW_PRE __stringify(api) ".ucode" +#define IWL135_FW_PRE "iwlwifi-135-" +#define IWL135_MODULE_FIRMWARE(api) IWL135_FW_PRE #api ".ucode" + static void iwl2000_set_ct_threshold(struct iwl_priv *priv) { /* want Celsius */ @@ -131,7 +136,6 @@ static int iwl2000_hw_set_hw_params(struct iwl_priv *priv) priv->hw_params.ht40_channel = BIT(IEEE80211_BAND_2GHZ) | BIT(IEEE80211_BAND_5GHZ); - priv->hw_params.rx_wrt_ptr_reg = FH_RSCSR_CHNL0_WPTR; priv->hw_params.tx_chains_num = num_of_ant(priv->cfg->valid_tx_ant); if (priv->cfg->rx_with_siso_diversity) @@ -193,25 +197,21 @@ static struct iwl_lib_ops iwl2000_lib = { static const struct iwl_ops iwl2000_ops = { .lib = &iwl2000_lib, - .hcmd = &iwlagn_hcmd, .utils = &iwlagn_hcmd_utils, }; static const struct iwl_ops iwl2030_ops = { .lib = &iwl2000_lib, - .hcmd = &iwlagn_bt_hcmd, .utils = &iwlagn_hcmd_utils, }; static const struct iwl_ops iwl105_ops = { .lib = &iwl2000_lib, - .hcmd = &iwlagn_hcmd, .utils = &iwlagn_hcmd_utils, }; static const struct iwl_ops iwl135_ops = { .lib = &iwl2000_lib, - .hcmd = &iwlagn_bt_hcmd, .utils = &iwlagn_hcmd_utils, }; @@ -344,9 +344,9 @@ struct iwl_cfg iwl105_bgn_cfg = { }; #define IWL_DEVICE_135 \ - .fw_name_pre = IWL105_FW_PRE, \ - .ucode_api_max = IWL105_UCODE_API_MAX, \ - .ucode_api_min = IWL105_UCODE_API_MIN, \ + .fw_name_pre = IWL135_FW_PRE, \ + .ucode_api_max = IWL135_UCODE_API_MAX, \ + .ucode_api_min = IWL135_UCODE_API_MIN, \ .eeprom_ver = EEPROM_2000_EEPROM_VERSION, \ .eeprom_calib_ver = EEPROM_2000_TX_POWER_VERSION, \ .ops = &iwl135_ops, \ @@ -359,12 +359,12 @@ struct iwl_cfg iwl105_bgn_cfg = { .rx_with_siso_diversity = true \ struct iwl_cfg iwl135_bg_cfg = { - .name = "105 Series 1x1 BG/BT", + .name = "135 Series 1x1 BG/BT", IWL_DEVICE_135, }; struct iwl_cfg iwl135_bgn_cfg = { - .name = "105 Series 1x1 BGN/BT", + .name = "135 Series 1x1 BGN/BT", IWL_DEVICE_135, .ht_params = &iwl2000_ht_params, }; @@ -372,3 +372,4 @@ struct iwl_cfg iwl135_bgn_cfg = { MODULE_FIRMWARE(IWL2000_MODULE_FIRMWARE(IWL2000_UCODE_API_MAX)); MODULE_FIRMWARE(IWL2030_MODULE_FIRMWARE(IWL2030_UCODE_API_MAX)); MODULE_FIRMWARE(IWL105_MODULE_FIRMWARE(IWL105_UCODE_API_MAX)); +MODULE_FIRMWARE(IWL135_MODULE_FIRMWARE(IWL135_UCODE_API_MAX)); diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c index 269dfdb9fe1a..c55cec853f50 100644 --- a/drivers/net/wireless/iwlwifi/iwl-5000.c +++ b/drivers/net/wireless/iwlwifi/iwl-5000.c @@ -169,7 +169,6 @@ static int iwl5000_hw_set_hw_params(struct iwl_priv *priv) priv->hw_params.ht40_channel = BIT(IEEE80211_BAND_2GHZ) | BIT(IEEE80211_BAND_5GHZ); - priv->hw_params.rx_wrt_ptr_reg = FH_RSCSR_CHNL0_WPTR; priv->hw_params.tx_chains_num = num_of_ant(priv->cfg->valid_tx_ant); priv->hw_params.rx_chains_num = num_of_ant(priv->cfg->valid_rx_ant); @@ -214,7 +213,6 @@ static int iwl5150_hw_set_hw_params(struct iwl_priv *priv) priv->hw_params.ht40_channel = BIT(IEEE80211_BAND_2GHZ) | BIT(IEEE80211_BAND_5GHZ); - priv->hw_params.rx_wrt_ptr_reg = FH_RSCSR_CHNL0_WPTR; priv->hw_params.tx_chains_num = num_of_ant(priv->cfg->valid_tx_ant); priv->hw_params.rx_chains_num = num_of_ant(priv->cfg->valid_rx_ant); @@ -379,13 +377,11 @@ static struct iwl_lib_ops iwl5150_lib = { static const struct iwl_ops iwl5000_ops = { .lib = &iwl5000_lib, - .hcmd = &iwlagn_hcmd, .utils = &iwlagn_hcmd_utils, }; static const struct iwl_ops iwl5150_ops = { .lib = &iwl5150_lib, - .hcmd = &iwlagn_hcmd, .utils = &iwlagn_hcmd_utils, }; diff --git a/drivers/net/wireless/iwlwifi/iwl-6000.c b/drivers/net/wireless/iwlwifi/iwl-6000.c index f1c1db76b9da..965d010794b4 100644 --- a/drivers/net/wireless/iwlwifi/iwl-6000.c +++ b/drivers/net/wireless/iwlwifi/iwl-6000.c @@ -157,7 +157,6 @@ static int iwl6000_hw_set_hw_params(struct iwl_priv *priv) priv->hw_params.ht40_channel = BIT(IEEE80211_BAND_2GHZ) | BIT(IEEE80211_BAND_5GHZ); - priv->hw_params.rx_wrt_ptr_reg = FH_RSCSR_CHNL0_WPTR; priv->hw_params.tx_chains_num = num_of_ant(priv->cfg->valid_tx_ant); if (priv->cfg->rx_with_siso_diversity) @@ -328,27 +327,23 @@ static struct iwl_nic_ops iwl6150_nic_ops = { static const struct iwl_ops iwl6000_ops = { .lib = &iwl6000_lib, - .hcmd = &iwlagn_hcmd, .utils = &iwlagn_hcmd_utils, }; static const struct iwl_ops iwl6050_ops = { .lib = &iwl6000_lib, - .hcmd = &iwlagn_hcmd, .utils = &iwlagn_hcmd_utils, .nic = &iwl6050_nic_ops, }; static const struct iwl_ops iwl6150_ops = { .lib = &iwl6000_lib, - .hcmd = &iwlagn_hcmd, .utils = &iwlagn_hcmd_utils, .nic = &iwl6150_nic_ops, }; static const struct iwl_ops iwl6030_ops = { .lib = &iwl6030_lib, - .hcmd = &iwlagn_bt_hcmd, .utils = &iwlagn_hcmd_utils, }; diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-hcmd.c b/drivers/net/wireless/iwlwifi/iwl-agn-hcmd.c index ba7ed9157c92..ce7d4b56d9b2 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-hcmd.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-hcmd.c @@ -205,7 +205,7 @@ static int iwlagn_calc_rssi(struct iwl_priv *priv, return max_rssi - agc - IWLAGN_RSSI_OFFSET; } -static int iwlagn_set_pan_params(struct iwl_priv *priv) +int iwlagn_set_pan_params(struct iwl_priv *priv) { struct iwl_wipan_params_cmd cmd; struct iwl_rxon_context *ctx_bss, *ctx_pan; @@ -297,20 +297,6 @@ static int iwlagn_set_pan_params(struct iwl_priv *priv) return ret; } -struct iwl_hcmd_ops iwlagn_hcmd = { - .set_rxon_chain = iwlagn_set_rxon_chain, - .set_tx_ant = iwlagn_send_tx_ant_config, - .send_bt_config = iwl_send_bt_config, - .set_pan_params = iwlagn_set_pan_params, -}; - -struct iwl_hcmd_ops iwlagn_bt_hcmd = { - .set_rxon_chain = iwlagn_set_rxon_chain, - .set_tx_ant = iwlagn_send_tx_ant_config, - .send_bt_config = iwlagn_send_advance_bt_config, - .set_pan_params = iwlagn_set_pan_params, -}; - struct iwl_hcmd_utils_ops iwlagn_hcmd_utils = { .build_addsta_hcmd = iwlagn_build_addsta_hcmd, .gain_computation = iwlagn_gain_computation, diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-lib.c b/drivers/net/wireless/iwlwifi/iwl-agn-lib.c index efdab6506ae7..90d366e15d2f 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-lib.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-lib.c @@ -628,38 +628,6 @@ struct iwl_mod_params iwlagn_mod_params = { /* the rest are 0 by default */ }; -void iwlagn_rx_queue_reset(struct iwl_priv *priv, struct iwl_rx_queue *rxq) -{ - unsigned long flags; - int i; - spin_lock_irqsave(&rxq->lock, flags); - INIT_LIST_HEAD(&rxq->rx_free); - INIT_LIST_HEAD(&rxq->rx_used); - /* Fill the rx_used queue with _all_ of the Rx buffers */ - for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) { - /* 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_FROM_DEVICE); - __iwl_free_pages(priv, rxq->pool[i].page); - rxq->pool[i].page = NULL; - } - list_add_tail(&rxq->pool[i].list, &rxq->rx_used); - } - - for (i = 0; i < RX_QUEUE_SIZE; i++) - rxq->queue[i] = NULL; - - /* Set us so that we have processed and used all buffers, but have - * not restocked the Rx queue with fresh buffers */ - rxq->read = rxq->write = 0; - rxq->write_actual = 0; - rxq->free_count = 0; - spin_unlock_irqrestore(&rxq->lock, flags); -} - int iwlagn_rx_init(struct iwl_priv *priv, struct iwl_rx_queue *rxq) { u32 rb_size; @@ -731,7 +699,6 @@ int iwlagn_hw_nic_init(struct iwl_priv *priv) { unsigned long flags; struct iwl_rx_queue *rxq = &priv->rxq; - int ret; /* nic_init */ spin_lock_irqsave(&priv->lock, flags); @@ -747,14 +714,7 @@ int iwlagn_hw_nic_init(struct iwl_priv *priv) priv->cfg->ops->lib->apm_ops.config(priv); /* Allocate the RX queue, or reset if it is already allocated */ - if (!rxq->bd) { - ret = iwl_rx_queue_alloc(priv); - if (ret) { - IWL_ERR(priv, "Unable to initialize Rx queue\n"); - return -ENOMEM; - } - } else - iwlagn_rx_queue_reset(priv, rxq); + priv->trans.ops->rx_init(priv); iwlagn_rx_replenish(priv); @@ -768,12 +728,8 @@ int iwlagn_hw_nic_init(struct iwl_priv *priv) spin_unlock_irqrestore(&priv->lock, flags); /* Allocate or reset and init all Tx and Command queues */ - if (!priv->txq) { - ret = iwlagn_txq_ctx_alloc(priv); - if (ret) - return ret; - } else - iwlagn_txq_ctx_reset(priv); + if (priv->trans.ops->tx_init(priv)) + return -ENOMEM; if (priv->cfg->base_params->shadow_reg_enable) { /* enable shadow regs in HW */ @@ -949,33 +905,6 @@ void iwlagn_rx_replenish_now(struct iwl_priv *priv) iwlagn_rx_queue_restock(priv); } -/* Assumes that the skb field of the buffers in 'pool' is kept accurate. - * If an SKB has been detached, the POOL needs to have its SKB set to NULL - * This free routine walks the list of POOL entries and if SKB is set to - * non NULL it is unmapped and freed - */ -void iwlagn_rx_queue_free(struct iwl_priv *priv, struct iwl_rx_queue *rxq) -{ - int i; - for (i = 0; i < RX_QUEUE_SIZE + RX_FREE_BUFFERS; i++) { - 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_FROM_DEVICE); - __iwl_free_pages(priv, rxq->pool[i].page); - rxq->pool[i].page = NULL; - } - } - - dma_free_coherent(priv->bus.dev, 4 * RX_QUEUE_SIZE, - rxq->bd, rxq->bd_dma); - dma_free_coherent(priv->bus.dev, - sizeof(struct iwl_rb_status), - rxq->rb_stts, rxq->rb_stts_dma); - rxq->bd = NULL; - rxq->rb_stts = NULL; -} - int iwlagn_rxq_stop(struct iwl_priv *priv) { @@ -1437,17 +1366,14 @@ int iwlagn_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif) /* set scan bit here for PAN params */ set_bit(STATUS_SCAN_HW, &priv->status); - if (priv->cfg->ops->hcmd->set_pan_params) { - ret = priv->cfg->ops->hcmd->set_pan_params(priv); - if (ret) - return ret; - } + ret = iwlagn_set_pan_params(priv); + if (ret) + return ret; ret = iwl_send_cmd_sync(priv, &cmd); if (ret) { clear_bit(STATUS_SCAN_HW, &priv->status); - if (priv->cfg->ops->hcmd->set_pan_params) - priv->cfg->ops->hcmd->set_pan_params(priv); + iwlagn_set_pan_params(priv); } return ret; diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c b/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c index 8fa43d427811..c6bb73a66d9f 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c @@ -436,11 +436,9 @@ int iwlagn_commit_rxon(struct iwl_priv *priv, struct iwl_rxon_context *ctx) if (ret) return ret; - if (priv->cfg->ops->hcmd->set_pan_params) { - ret = priv->cfg->ops->hcmd->set_pan_params(priv); - if (ret) - return ret; - } + ret = iwlagn_set_pan_params(priv); + if (ret) + return ret; if (new_assoc) return iwlagn_rxon_connect(priv, ctx); @@ -483,9 +481,8 @@ int iwlagn_mac_config(struct ieee80211_hw *hw, u32 changed) * set up the SM PS mode to OFF if an HT channel is * configured. */ - if (priv->cfg->ops->hcmd->set_rxon_chain) - for_each_context(priv, ctx) - priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx); + for_each_context(priv, ctx) + iwlagn_set_rxon_chain(priv, ctx); } if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { @@ -741,8 +738,7 @@ void iwlagn_bss_info_changed(struct ieee80211_hw *hw, iwl_set_rxon_ht(priv, &priv->current_ht_config); } - if (priv->cfg->ops->hcmd->set_rxon_chain) - priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx); + iwlagn_set_rxon_chain(priv, ctx); if (bss_conf->use_cts_prot && (priv->band != IEEE80211_BAND_5GHZ)) ctx->staging.flags |= RXON_FLG_TGG_PROTECT_MSK; @@ -821,6 +817,5 @@ void iwlagn_post_scan(struct iwl_priv *priv) if (memcmp(&ctx->staging, &ctx->active, sizeof(ctx->staging))) iwlagn_commit_rxon(priv, ctx); - if (priv->cfg->ops->hcmd->set_pan_params) - priv->cfg->ops->hcmd->set_pan_params(priv); + iwlagn_set_pan_params(priv); } diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c index d0ac090399e9..c05a8d9fbd2e 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c @@ -878,96 +878,6 @@ void iwlagn_hw_txq_ctx_free(struct iwl_priv *priv) } /** - * iwlagn_txq_ctx_alloc - allocate TX queue context - * Allocate all Tx DMA structures and initialize them - * - * @param priv - * @return error code - */ -int iwlagn_txq_ctx_alloc(struct iwl_priv *priv) -{ - int ret; - int txq_id, slots_num; - unsigned long flags; - - /* Free all tx/cmd queues and keep-warm buffer */ - iwlagn_hw_txq_ctx_free(priv); - - ret = iwlagn_alloc_dma_ptr(priv, &priv->scd_bc_tbls, - priv->hw_params.scd_bc_tbls_size); - if (ret) { - IWL_ERR(priv, "Scheduler BC Table allocation failed\n"); - goto error_bc_tbls; - } - /* Alloc keep-warm buffer */ - ret = iwlagn_alloc_dma_ptr(priv, &priv->kw, IWL_KW_SIZE); - if (ret) { - IWL_ERR(priv, "Keep Warm allocation failed\n"); - goto error_kw; - } - - /* allocate tx queue structure */ - ret = iwl_alloc_txq_mem(priv); - if (ret) - goto error; - - spin_lock_irqsave(&priv->lock, flags); - - /* Turn off all Tx DMA fifos */ - iwlagn_txq_set_sched(priv, 0); - - /* Tell NIC where to find the "keep warm" buffer */ - iwl_write_direct32(priv, FH_KW_MEM_ADDR_REG, priv->kw.dma >> 4); - - spin_unlock_irqrestore(&priv->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) ? - TFD_CMD_SLOTS : TFD_TX_CMD_SLOTS; - ret = iwl_tx_queue_init(priv, &priv->txq[txq_id], slots_num, - txq_id); - if (ret) { - IWL_ERR(priv, "Tx %d queue init failed\n", txq_id); - goto error; - } - } - - return ret; - - error: - iwlagn_hw_txq_ctx_free(priv); - iwlagn_free_dma_ptr(priv, &priv->kw); - error_kw: - iwlagn_free_dma_ptr(priv, &priv->scd_bc_tbls); - error_bc_tbls: - return ret; -} - -void iwlagn_txq_ctx_reset(struct iwl_priv *priv) -{ - int txq_id, slots_num; - unsigned long flags; - - spin_lock_irqsave(&priv->lock, flags); - - /* Turn off all Tx DMA fifos */ - iwlagn_txq_set_sched(priv, 0); - - /* Tell NIC where to find the "keep warm" buffer */ - iwl_write_direct32(priv, FH_KW_MEM_ADDR_REG, priv->kw.dma >> 4); - - spin_unlock_irqrestore(&priv->lock, flags); - - /* Alloc and init all Tx queues, including the command queue (#4) */ - for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++) { - slots_num = txq_id == priv->cmd_queue ? - TFD_CMD_SLOTS : TFD_TX_CMD_SLOTS; - iwl_tx_queue_reset(priv, &priv->txq[txq_id], slots_num, txq_id); - } -} - -/** * iwlagn_txq_ctx_stop - Stop all Tx DMA channels */ void iwlagn_txq_ctx_stop(struct iwl_priv *priv) diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-ucode.c b/drivers/net/wireless/iwlwifi/iwl-agn-ucode.c index de8277e32253..2043c8b3139b 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-ucode.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-ucode.c @@ -386,11 +386,13 @@ static int iwlagn_alive_notify(struct iwl_priv *priv) spin_lock_irqsave(&priv->lock, flags); priv->scd_base_addr = iwl_read_prph(priv, IWLAGN_SCD_SRAM_BASE_ADDR); - a = priv->scd_base_addr + IWLAGN_SCD_CONTEXT_DATA_OFFSET; - for (; a < priv->scd_base_addr + IWLAGN_SCD_TX_STTS_BITMAP_OFFSET; + a = priv->scd_base_addr + IWLAGN_SCD_CONTEXT_MEM_LOWER_BOUND; + /* reset conext data memory */ + for (; a < priv->scd_base_addr + IWLAGN_SCD_CONTEXT_MEM_UPPER_BOUND; a += 4) iwl_write_targ_mem(priv, a, 0); - for (; a < priv->scd_base_addr + IWLAGN_SCD_TRANSLATE_TBL_OFFSET; + /* reset tx status memory */ + for (; a < priv->scd_base_addr + IWLAGN_SCD_TX_STTS_MEM_UPPER_BOUND; a += 4) iwl_write_targ_mem(priv, a, 0); for (; a < priv->scd_base_addr + diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c index e2f6b2ab0d45..7e6c463abbdf 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn.c @@ -56,7 +56,7 @@ #include "iwl-agn-calib.h" #include "iwl-agn.h" #include "iwl-pci.h" - +#include "iwl-trans.h" /****************************************************************************** * @@ -90,12 +90,10 @@ void iwl_update_chain_flags(struct iwl_priv *priv) { struct iwl_rxon_context *ctx; - if (priv->cfg->ops->hcmd->set_rxon_chain) { - for_each_context(priv, ctx) { - priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx); - if (ctx->active.rx_chain != ctx->staging.rx_chain) - iwlagn_commit_rxon(priv, ctx); - } + for_each_context(priv, ctx) { + iwlagn_set_rxon_chain(priv, ctx); + if (ctx->active.rx_chain != ctx->staging.rx_chain) + iwlagn_commit_rxon(priv, ctx); } } @@ -260,7 +258,7 @@ static void iwl_bg_bt_runtime_config(struct work_struct *work) /* dont send host command if rf-kill is on */ if (!iwl_is_ready_rf(priv)) return; - priv->cfg->ops->hcmd->send_bt_config(priv); + iwlagn_send_advance_bt_config(priv); } static void iwl_bg_bt_full_concurrency(struct work_struct *work) @@ -287,12 +285,11 @@ static void iwl_bg_bt_full_concurrency(struct work_struct *work) * to avoid 3-wire collisions */ for_each_context(priv, ctx) { - if (priv->cfg->ops->hcmd->set_rxon_chain) - priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx); + iwlagn_set_rxon_chain(priv, ctx); iwlagn_commit_rxon(priv, ctx); } - priv->cfg->ops->hcmd->send_bt_config(priv); + iwlagn_send_advance_bt_config(priv); out: mutex_unlock(&priv->mutex); } @@ -2017,7 +2014,7 @@ int iwl_alive_start(struct iwl_priv *priv) priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK; priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT; priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT; - priv->cfg->ops->hcmd->send_bt_config(priv); + iwlagn_send_advance_bt_config(priv); priv->bt_valid = IWLAGN_BT_VALID_ENABLE_FLAGS; iwlagn_send_prio_tbl(priv); @@ -2030,7 +2027,13 @@ int iwl_alive_start(struct iwl_priv *priv) BT_COEX_PRIO_TBL_EVT_INIT_CALIB2); if (ret) return ret; + } else { + /* + * default is 2-wire BT coexexistence support + */ + iwl_send_bt_config(priv); } + if (priv->hw_params.calib_rt_cfg) iwlagn_send_calib_cfg_rt(priv, priv->hw_params.calib_rt_cfg); @@ -2039,8 +2042,7 @@ int iwl_alive_start(struct iwl_priv *priv) priv->active_rate = IWL_RATES_MASK; /* Configure Tx antenna selection based on H/W config */ - if (priv->cfg->ops->hcmd->set_tx_ant) - priv->cfg->ops->hcmd->set_tx_ant(priv, priv->cfg->valid_tx_ant); + iwlagn_send_tx_ant_config(priv, priv->cfg->valid_tx_ant); if (iwl_is_associated_ctx(ctx)) { struct iwl_rxon_cmd *active_rxon = @@ -2054,16 +2056,7 @@ int iwl_alive_start(struct iwl_priv *priv) for_each_context(priv, tmp) iwl_connection_init_rx_config(priv, tmp); - if (priv->cfg->ops->hcmd->set_rxon_chain) - priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx); - } - - if (!priv->cfg->bt_params || (priv->cfg->bt_params && - !priv->cfg->bt_params->advanced_bt_coexist)) { - /* - * default is 2-wire BT coexexistence support - */ - priv->cfg->ops->hcmd->send_bt_config(priv); + iwlagn_set_rxon_chain(priv, ctx); } iwl_reset_run_time_calib(priv); @@ -3288,9 +3281,7 @@ static int iwl_init_drv(struct iwl_priv *priv) priv->rx_statistics_jiffies = jiffies; /* Choose which receivers/antennas to use */ - if (priv->cfg->ops->hcmd->set_rxon_chain) - priv->cfg->ops->hcmd->set_rxon_chain(priv, - &priv->contexts[IWL_RXON_CTX_BSS]); + iwlagn_set_rxon_chain(priv, &priv->contexts[IWL_RXON_CTX_BSS]); iwl_init_scan_params(priv); @@ -3517,6 +3508,8 @@ int iwl_probe(void *bus_specific, struct iwl_bus_ops *bus_ops, priv->bus.ops->set_drv_data(&priv->bus, priv); priv->bus.dev = priv->bus.ops->get_dev(&priv->bus); + iwl_trans_register(&priv->trans); + /* At this point both hw and priv are allocated. */ SET_IEEE80211_DEV(hw, priv->bus.dev); @@ -3716,8 +3709,7 @@ void __devexit iwl_remove(struct iwl_priv * priv) iwl_dealloc_ucode(priv); - if (priv->rxq.bd) - iwlagn_rx_queue_free(priv, &priv->rxq); + priv->trans.ops->rx_free(priv); iwlagn_hw_txq_ctx_free(priv); iwl_eeprom_free(priv); @@ -3820,6 +3812,10 @@ MODULE_PARM_DESC(plcp_check, "Check plcp health (default: 1 [enabled])"); module_param_named(ack_check, iwlagn_mod_params.ack_check, bool, S_IRUGO); MODULE_PARM_DESC(ack_check, "Check ack health (default: 0 [disabled])"); +module_param_named(wd_disable, iwlagn_mod_params.wd_disable, bool, S_IRUGO); +MODULE_PARM_DESC(wd_disable, + "Disable stuck queue watchdog timer (default: 0 [enabled])"); + /* * set bt_coex_active to true, uCode will do kill/defer * every time the priority line is asserted (BT is sending signals on the diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.h b/drivers/net/wireless/iwlwifi/iwl-agn.h index dcdf2259520f..4351151e2a91 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn.h +++ b/drivers/net/wireless/iwlwifi/iwl-agn.h @@ -182,7 +182,6 @@ void iwlagn_temperature(struct iwl_priv *priv); u16 iwlagn_eeprom_calib_version(struct iwl_priv *priv); const u8 *iwlagn_eeprom_query_addr(const struct iwl_priv *priv, size_t offset); -void iwlagn_rx_queue_reset(struct iwl_priv *priv, struct iwl_rx_queue *rxq); int iwlagn_rx_init(struct iwl_priv *priv, struct iwl_rx_queue *rxq); int iwlagn_hw_nic_init(struct iwl_priv *priv); int iwlagn_wait_tx_queue_empty(struct iwl_priv *priv); @@ -194,7 +193,6 @@ void iwlagn_rx_queue_restock(struct iwl_priv *priv); void iwlagn_rx_allocate(struct iwl_priv *priv, gfp_t priority); void iwlagn_rx_replenish(struct iwl_priv *priv); void iwlagn_rx_replenish_now(struct iwl_priv *priv); -void iwlagn_rx_queue_free(struct iwl_priv *priv, struct iwl_rx_queue *rxq); int iwlagn_rxq_stop(struct iwl_priv *priv); int iwlagn_hwrate_to_mac80211_idx(u32 rate_n_flags, enum ieee80211_band band); void iwl_setup_rx_handlers(struct iwl_priv *priv); @@ -220,8 +218,6 @@ void iwlagn_rx_reply_compressed_ba(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb); int iwlagn_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index); void iwlagn_hw_txq_ctx_free(struct iwl_priv *priv); -int iwlagn_txq_ctx_alloc(struct iwl_priv *priv); -void iwlagn_txq_ctx_reset(struct iwl_priv *priv); void iwlagn_txq_ctx_stop(struct iwl_priv *priv); static inline u32 iwl_tx_status_to_mac80211(u32 status) @@ -260,6 +256,7 @@ int iwlagn_manage_ibss_station(struct iwl_priv *priv, /* hcmd */ int iwlagn_send_tx_ant_config(struct iwl_priv *priv, u8 valid_tx_ant); int iwlagn_send_beacon_cmd(struct iwl_priv *priv); +int iwlagn_set_pan_params(struct iwl_priv *priv); /* bt coex */ void iwlagn_send_advance_bt_config(struct iwl_priv *priv); diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c index 7f16d1203057..f91e306c2498 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.c +++ b/drivers/net/wireless/iwlwifi/iwl-core.c @@ -585,8 +585,7 @@ static void _iwl_set_rxon_ht(struct iwl_priv *priv, rxon->flags |= RXON_FLG_CHANNEL_MODE_LEGACY; } - if (priv->cfg->ops->hcmd->set_rxon_chain) - priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx); + iwlagn_set_rxon_chain(priv, ctx); IWL_DEBUG_ASSOC(priv, "rxon flags 0x%X operation mode :0x%X " "extension channel offset 0x%x\n", @@ -1216,8 +1215,7 @@ static int iwl_set_mode(struct iwl_priv *priv, struct iwl_rxon_context *ctx) { iwl_connection_init_rx_config(priv, ctx); - if (priv->cfg->ops->hcmd->set_rxon_chain) - priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx); + iwlagn_set_rxon_chain(priv, ctx); return iwlagn_commit_rxon(priv, ctx); } @@ -1372,20 +1370,6 @@ void iwl_mac_remove_interface(struct ieee80211_hw *hw, } -int iwl_alloc_txq_mem(struct iwl_priv *priv) -{ - if (!priv->txq) - 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"); - return -ENOMEM; - } - return 0; -} - void iwl_free_txq_mem(struct iwl_priv *priv) { kfree(priv->txq); @@ -1853,7 +1837,7 @@ void iwl_setup_watchdog(struct iwl_priv *priv) { unsigned int timeout = priv->cfg->base_params->wd_timeout; - if (timeout) + if (timeout && !iwlagn_mod_params.wd_disable) mod_timer(&priv->watchdog, jiffies + msecs_to_jiffies(IWL_WD_TICK(timeout))); else diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h index f881678be762..6c21de9f5b60 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.h +++ b/drivers/net/wireless/iwlwifi/iwl-core.h @@ -80,14 +80,6 @@ struct iwl_cmd; #define IWL_CMD(x) case x: return #x -struct iwl_hcmd_ops { - void (*set_rxon_chain)(struct iwl_priv *priv, - struct iwl_rxon_context *ctx); - int (*set_tx_ant)(struct iwl_priv *priv, u8 valid_tx_ant); - void (*send_bt_config)(struct iwl_priv *priv); - int (*set_pan_params)(struct iwl_priv *priv); -}; - struct iwl_hcmd_utils_ops { u16 (*build_addsta_hcmd)(const struct iwl_addsta_cmd *cmd, u8 *data); void (*gain_computation)(struct iwl_priv *priv, @@ -146,7 +138,6 @@ struct iwl_nic_ops { struct iwl_ops { const struct iwl_lib_ops *lib; - const struct iwl_hcmd_ops *hcmd; const struct iwl_hcmd_utils_ops *utils; const struct iwl_nic_ops *nic; }; @@ -160,6 +151,7 @@ struct iwl_mod_params { int restart_fw; /* def: 1 = restart firmware */ bool plcp_check; /* def: true = enable plcp health check */ bool ack_check; /* def: false = disable ack health check */ + bool wd_disable; /* def: false = enable stuck queue check */ bool bt_coex_active; /* def: true = enable bt coex */ int led_mode; /* def: 0 = system default */ bool no_sleep_autoadjust; /* def: true = disable autoadjust */ @@ -336,7 +328,6 @@ void iwl_mac_remove_interface(struct ieee80211_hw *hw, int iwl_mac_change_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif, enum nl80211_iftype newtype, bool newp2p); -int iwl_alloc_txq_mem(struct iwl_priv *priv); void iwl_free_txq_mem(struct iwl_priv *priv); #ifdef CONFIG_IWLWIFI_DEBUGFS @@ -382,7 +373,6 @@ static inline void iwl_update_stats(struct iwl_priv *priv, bool is_tx, ******************************************************/ void iwl_cmd_queue_free(struct iwl_priv *priv); void iwl_cmd_queue_unmap(struct iwl_priv *priv); -int iwl_rx_queue_alloc(struct iwl_priv *priv); void iwl_rx_queue_update_write_ptr(struct iwl_priv *priv, struct iwl_rx_queue *q); int iwl_rx_queue_space(const struct iwl_rx_queue *q); @@ -396,11 +386,9 @@ void iwl_chswitch_done(struct iwl_priv *priv, bool is_success); * TX ******************************************************/ void iwl_txq_update_write_ptr(struct iwl_priv *priv, struct iwl_tx_queue *txq); -int iwl_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq, - int slots_num, u32 txq_id); -void iwl_tx_queue_reset(struct iwl_priv *priv, struct iwl_tx_queue *txq, - int slots_num, u32 txq_id); void iwl_tx_queue_free(struct iwl_priv *priv, int txq_id); +int iwl_queue_init(struct iwl_priv *priv, struct iwl_queue *q, + int count, int slots_num, u32 id); void iwl_tx_queue_unmap(struct iwl_priv *priv, int txq_id); void iwl_setup_watchdog(struct iwl_priv *priv); /***************************************************** diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h index f1b1128ee1c4..c6560e97a62b 100644 --- a/drivers/net/wireless/iwlwifi/iwl-dev.h +++ b/drivers/net/wireless/iwlwifi/iwl-dev.h @@ -666,7 +666,6 @@ struct iwl_hw_params { u16 max_rxq_size; u16 max_rxq_log; u32 rx_page_order; - u32 rx_wrt_ptr_reg; u8 max_stations; u8 ht40_channel; u8 max_beacon_itrvl; /* in 1024 ms */ @@ -1228,6 +1227,25 @@ struct iwl_bus { unsigned int irq; }; +struct iwl_trans; + +/** + * struct iwl_trans_ops - transport specific operations + + * @rx_init: inits the rx memory, allocate it if needed + * @rx_free: frees the rx memory + * @tx_init:inits the tx memory, allocate if needed + */ +struct iwl_trans_ops { + int (*rx_init)(struct iwl_priv *priv); + void (*rx_free)(struct iwl_priv *priv); + int (*tx_init)(struct iwl_priv *priv); +}; + +struct iwl_trans { + const struct iwl_trans_ops *ops; +}; + struct iwl_priv { /* ieee device used by generic ieee processing code */ @@ -1296,13 +1314,13 @@ struct iwl_priv { struct mutex mutex; struct iwl_bus bus; /* bus specific data */ + struct iwl_trans trans; /* microcode/device supports multiple contexts */ u8 valid_contexts; /* command queue number */ u8 cmd_queue; - u8 last_sync_cmd_id; /* max number of station keys */ u8 sta_key_max_num; diff --git a/drivers/net/wireless/iwlwifi/iwl-hcmd.c b/drivers/net/wireless/iwlwifi/iwl-hcmd.c index e3e5fb614178..107b38e2ee93 100644 --- a/drivers/net/wireless/iwlwifi/iwl-hcmd.c +++ b/drivers/net/wireless/iwlwifi/iwl-hcmd.c @@ -171,6 +171,8 @@ int iwl_send_cmd_sync(struct iwl_priv *priv, struct iwl_host_cmd *cmd) int cmd_idx; int ret; + lockdep_assert_held(&priv->mutex); + if (WARN_ON(cmd->flags & CMD_ASYNC)) return -EINVAL; @@ -181,16 +183,7 @@ int iwl_send_cmd_sync(struct iwl_priv *priv, struct iwl_host_cmd *cmd) IWL_DEBUG_INFO(priv, "Attempting to send sync command %s\n", get_cmd_string(cmd->id)); - if (test_and_set_bit(STATUS_HCMD_ACTIVE, &priv->status)) { - IWL_ERR(priv, "STATUS_HCMD_ACTIVE already set while sending %s" - ". Previous SYNC cmdn is %s\n", - get_cmd_string(cmd->id), - get_cmd_string(priv->last_sync_cmd_id)); - WARN_ON(1); - } else { - priv->last_sync_cmd_id = cmd->id; - } - + set_bit(STATUS_HCMD_ACTIVE, &priv->status); IWL_DEBUG_INFO(priv, "Setting HCMD_ACTIVE for command %s\n", get_cmd_string(cmd->id)); diff --git a/drivers/net/wireless/iwlwifi/iwl-pci.c b/drivers/net/wireless/iwlwifi/iwl-pci.c index 3b5844b60e7c..74911348a2ee 100644 --- a/drivers/net/wireless/iwlwifi/iwl-pci.c +++ b/drivers/net/wireless/iwlwifi/iwl-pci.c @@ -67,6 +67,7 @@ #include "iwl-agn.h" #include "iwl-core.h" #include "iwl-io.h" +#include "iwl-trans.h" /* PCI registers */ #define PCI_CFG_RETRY_TIMEOUT 0x041 @@ -93,7 +94,7 @@ static u16 iwl_pciexp_link_ctrl(struct iwl_bus *bus) u16 pci_lnk_ctl; struct pci_dev *pci_dev = IWL_BUS_GET_PCI_DEV(bus); - pos = pci_find_capability(pci_dev, PCI_CAP_ID_EXP); + pos = pci_pcie_cap(pci_dev); pci_read_config_word(pci_dev, pos + PCI_EXP_LNKCTL, &pci_lnk_ctl); return pci_lnk_ctl; } diff --git a/drivers/net/wireless/iwlwifi/iwl-prph.h b/drivers/net/wireless/iwlwifi/iwl-prph.h index f00d188b2cfc..1cc0ed1f488c 100644 --- a/drivers/net/wireless/iwlwifi/iwl-prph.h +++ b/drivers/net/wireless/iwlwifi/iwl-prph.h @@ -168,6 +168,7 @@ * the scheduler (especially for queue #4/#9, the command queue, otherwise * the driver can't issue commands!): */ +#define SCD_MEM_LOWER_BOUND (0x0000) /** * Max Tx window size is the max number of contiguous TFDs that the scheduler @@ -197,15 +198,23 @@ #define IWLAGN_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS (16) #define IWLAGN_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK (0x007F0000) -#define IWLAGN_SCD_CONTEXT_DATA_OFFSET (0x600) -#define IWLAGN_SCD_TX_STTS_BITMAP_OFFSET (0x7B1) -#define IWLAGN_SCD_TRANSLATE_TBL_OFFSET (0x7E0) +/* Context Data */ +#define IWLAGN_SCD_CONTEXT_MEM_LOWER_BOUND (SCD_MEM_LOWER_BOUND + 0x600) +#define IWLAGN_SCD_CONTEXT_MEM_UPPER_BOUND (SCD_MEM_LOWER_BOUND + 0x6A0) + +/* Tx status */ +#define IWLAGN_SCD_TX_STTS_MEM_LOWER_BOUND (SCD_MEM_LOWER_BOUND + 0x6A0) +#define IWLAGN_SCD_TX_STTS_MEM_UPPER_BOUND (SCD_MEM_LOWER_BOUND + 0x7E0) + +/* Translation Data */ +#define IWLAGN_SCD_TRANS_TBL_MEM_LOWER_BOUND (SCD_MEM_LOWER_BOUND + 0x7E0) +#define IWLAGN_SCD_TRANS_TBL_MEM_UPPER_BOUND (SCD_MEM_LOWER_BOUND + 0x808) #define IWLAGN_SCD_CONTEXT_QUEUE_OFFSET(x)\ - (IWLAGN_SCD_CONTEXT_DATA_OFFSET + ((x) * 8)) + (IWLAGN_SCD_CONTEXT_MEM_LOWER_BOUND + ((x) * 8)) #define IWLAGN_SCD_TRANSLATE_TBL_OFFSET_QUEUE(x) \ - ((IWLAGN_SCD_TRANSLATE_TBL_OFFSET + ((x) * 2)) & 0xfffc) + ((IWLAGN_SCD_TRANS_TBL_MEM_LOWER_BOUND + ((x) * 2)) & 0xfffc) #define IWLAGN_SCD_QUEUECHAIN_SEL_ALL(priv) \ (((1<<(priv)->hw_params.max_txq_num) - 1) &\ diff --git a/drivers/net/wireless/iwlwifi/iwl-rx.c b/drivers/net/wireless/iwlwifi/iwl-rx.c index 3efa7066e987..87148bb3f628 100644 --- a/drivers/net/wireless/iwlwifi/iwl-rx.c +++ b/drivers/net/wireless/iwlwifi/iwl-rx.c @@ -134,7 +134,6 @@ int iwl_rx_queue_space(const struct iwl_rx_queue *q) void iwl_rx_queue_update_write_ptr(struct iwl_priv *priv, struct iwl_rx_queue *q) { unsigned long flags; - u32 rx_wrt_ptr_reg = priv->hw_params.rx_wrt_ptr_reg; u32 reg; spin_lock_irqsave(&q->lock, flags); @@ -146,7 +145,7 @@ void iwl_rx_queue_update_write_ptr(struct iwl_priv *priv, struct iwl_rx_queue *q /* shadow register enabled */ /* Device expects a multiple of 8 */ q->write_actual = (q->write & ~0x7); - iwl_write32(priv, rx_wrt_ptr_reg, q->write_actual); + 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->status)) { @@ -162,14 +161,14 @@ void iwl_rx_queue_update_write_ptr(struct iwl_priv *priv, struct iwl_rx_queue *q } q->write_actual = (q->write & ~0x7); - iwl_write_direct32(priv, rx_wrt_ptr_reg, + iwl_write_direct32(priv, FH_RSCSR_CHNL0_WPTR, q->write_actual); /* Else device is assumed to be awake */ } else { /* Device expects a multiple of 8 */ q->write_actual = (q->write & ~0x7); - iwl_write_direct32(priv, rx_wrt_ptr_reg, + iwl_write_direct32(priv, FH_RSCSR_CHNL0_WPTR, q->write_actual); } } @@ -179,46 +178,6 @@ void iwl_rx_queue_update_write_ptr(struct iwl_priv *priv, struct iwl_rx_queue *q spin_unlock_irqrestore(&q->lock, flags); } -int iwl_rx_queue_alloc(struct iwl_priv *priv) -{ - struct iwl_rx_queue *rxq = &priv->rxq; - struct device *dev = priv->bus.dev; - int i; - - spin_lock_init(&rxq->lock); - INIT_LIST_HEAD(&rxq->rx_free); - INIT_LIST_HEAD(&rxq->rx_used); - - /* Alloc the circular buffer of Read Buffer Descriptors (RBDs) */ - rxq->bd = dma_alloc_coherent(dev, 4 * RX_QUEUE_SIZE, &rxq->bd_dma, - GFP_KERNEL); - if (!rxq->bd) - goto err_bd; - - rxq->rb_stts = dma_alloc_coherent(dev, sizeof(struct iwl_rb_status), - &rxq->rb_stts_dma, GFP_KERNEL); - if (!rxq->rb_stts) - goto err_rb; - - /* Fill the rx_used queue with _all_ of the Rx buffers */ - for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) - list_add_tail(&rxq->pool[i].list, &rxq->rx_used); - - /* Set us so that we have processed and used all buffers, but have - * not restocked the Rx queue with fresh buffers */ - rxq->read = rxq->write = 0; - rxq->write_actual = 0; - rxq->free_count = 0; - rxq->need_update = 0; - return 0; - -err_rb: - dma_free_coherent(dev, 4 * RX_QUEUE_SIZE, rxq->bd, - rxq->bd_dma); -err_bd: - return -ENOMEM; -} - /****************************************************************************** * * Generic RX handler implementations diff --git a/drivers/net/wireless/iwlwifi/iwl-testmode.h b/drivers/net/wireless/iwlwifi/iwl-testmode.h index 160911a3716a..d825188e5215 100644 --- a/drivers/net/wireless/iwlwifi/iwl-testmode.h +++ b/drivers/net/wireless/iwlwifi/iwl-testmode.h @@ -66,116 +66,144 @@ #include <linux/types.h> -/* Commands from user space to kernel space(IWL_TM_CMD_ID_APP2DEV_XX) and +/* + * Commands from user space to kernel space(IWL_TM_CMD_ID_APP2DEV_XX) and * from and kernel space to user space(IWL_TM_CMD_ID_DEV2APP_XX). - * The command ID is carried with IWL_TM_ATTR_COMMAND. There are three types of - * of command from user space and two types of command from kernel space. - * See below. + * The command ID is carried with IWL_TM_ATTR_COMMAND. + * + * @IWL_TM_CMD_APP2DEV_UCODE: + * commands from user application to the uCode, + * the actual uCode host command ID is carried with + * IWL_TM_ATTR_UCODE_CMD_ID + * + * @IWL_TM_CMD_APP2DEV_REG_READ32: + * @IWL_TM_CMD_APP2DEV_REG_WRITE32: + * @IWL_TM_CMD_APP2DEV_REG_WRITE8: + * commands from user applicaiton to access register + * + * @IWL_TM_CMD_APP2DEV_GET_DEVICENAME: retrieve device name + * @IWL_TM_CMD_APP2DEV_LOAD_INIT_FW: load initial uCode image + * @IWL_TM_CMD_APP2DEV_CFG_INIT_CALIB: perform calibration + * @IWL_TM_CMD_APP2DEV_LOAD_RUNTIME_FW: load runtime uCode image + * @IWL_TM_CMD_APP2DEV_GET_EEPROM: request EEPROM data + * @IWL_TM_CMD_APP2DEV_FIXRATE_REQ: set fix MCS + * commands fom user space for pure driver level operations + * + * @IWL_TM_CMD_APP2DEV_BEGIN_TRACE: + * @IWL_TM_CMD_APP2DEV_END_TRACE: + * @IWL_TM_CMD_APP2DEV_READ_TRACE: + * commands fom user space for uCode trace operations + * + * @IWL_TM_CMD_DEV2APP_SYNC_RSP: + * commands from kernel space to carry the synchronous response + * to user application + * @IWL_TM_CMD_DEV2APP_UCODE_RX_PKT: + * commands from kernel space to multicast the spontaneous messages + * to user application + * @IWL_TM_CMD_DEV2APP_EEPROM_RSP: + * commands from kernel space to carry the eeprom response + * to user application */ enum iwl_tm_cmd_t { - /* commands from user application to the uCode, - * the actual uCode host command ID is carried with - * IWL_TM_ATTR_UCODE_CMD_ID */ - IWL_TM_CMD_APP2DEV_UCODE = 1, - - /* commands from user applicaiton to access register */ - IWL_TM_CMD_APP2DEV_REG_READ32, - IWL_TM_CMD_APP2DEV_REG_WRITE32, - IWL_TM_CMD_APP2DEV_REG_WRITE8, - - /* commands fom user space for pure driver level operations */ - IWL_TM_CMD_APP2DEV_GET_DEVICENAME, - IWL_TM_CMD_APP2DEV_LOAD_INIT_FW, - IWL_TM_CMD_APP2DEV_CFG_INIT_CALIB, - IWL_TM_CMD_APP2DEV_LOAD_RUNTIME_FW, - IWL_TM_CMD_APP2DEV_GET_EEPROM, - IWL_TM_CMD_APP2DEV_FIXRATE_REQ, - /* if there is other new command for the driver layer operation, - * append them here */ - - /* commands fom user space for uCode trace operations */ - IWL_TM_CMD_APP2DEV_BEGIN_TRACE, - IWL_TM_CMD_APP2DEV_END_TRACE, - IWL_TM_CMD_APP2DEV_READ_TRACE, - - /* commands from kernel space to carry the synchronous response - * to user application */ - IWL_TM_CMD_DEV2APP_SYNC_RSP, - - /* commands from kernel space to multicast the spontaneous messages - * to user application */ - IWL_TM_CMD_DEV2APP_UCODE_RX_PKT, - - /* commands from kernel space to carry the eeprom response - * to user application */ - IWL_TM_CMD_DEV2APP_EEPROM_RSP, - - IWL_TM_CMD_MAX, + IWL_TM_CMD_APP2DEV_UCODE = 1, + IWL_TM_CMD_APP2DEV_REG_READ32 = 2, + IWL_TM_CMD_APP2DEV_REG_WRITE32 = 3, + IWL_TM_CMD_APP2DEV_REG_WRITE8 = 4, + IWL_TM_CMD_APP2DEV_GET_DEVICENAME = 5, + IWL_TM_CMD_APP2DEV_LOAD_INIT_FW = 6, + IWL_TM_CMD_APP2DEV_CFG_INIT_CALIB = 7, + IWL_TM_CMD_APP2DEV_LOAD_RUNTIME_FW = 8, + IWL_TM_CMD_APP2DEV_GET_EEPROM = 9, + IWL_TM_CMD_APP2DEV_FIXRATE_REQ = 10, + IWL_TM_CMD_APP2DEV_BEGIN_TRACE = 11, + IWL_TM_CMD_APP2DEV_END_TRACE = 12, + IWL_TM_CMD_APP2DEV_READ_TRACE = 13, + IWL_TM_CMD_DEV2APP_SYNC_RSP = 14, + IWL_TM_CMD_DEV2APP_UCODE_RX_PKT = 15, + IWL_TM_CMD_DEV2APP_EEPROM_RSP = 16, + IWL_TM_CMD_MAX = 17, }; +/* + * Atrribute filed in testmode command + * See enum iwl_tm_cmd_t. + * + * @IWL_TM_ATTR_NOT_APPLICABLE: + * The attribute is not applicable or invalid + * @IWL_TM_ATTR_COMMAND: + * From user space to kernel space: + * the command either destines to ucode, driver, or register; + * From kernel space to user space: + * the command either carries synchronous response, + * or the spontaneous message multicast from the device; + * + * @IWL_TM_ATTR_UCODE_CMD_ID: + * @IWL_TM_ATTR_UCODE_CMD_DATA: + * When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_UCODE, + * The mandatory fields are : + * IWL_TM_ATTR_UCODE_CMD_ID for recognizable command ID; + * IWL_TM_ATTR_COMMAND_FLAG for the flags of the commands; + * The optional fields are: + * IWL_TM_ATTR_UCODE_CMD_DATA for the actual command payload + * to the ucode + * + * @IWL_TM_ATTR_REG_OFFSET: + * @IWL_TM_ATTR_REG_VALUE8: + * @IWL_TM_ATTR_REG_VALUE32: + * When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_REG_XXX, + * The mandatory fields are: + * IWL_TM_ATTR_REG_OFFSET for the offset of the target register; + * IWL_TM_ATTR_REG_VALUE8 or IWL_TM_ATTR_REG_VALUE32 for value + * + * @IWL_TM_ATTR_SYNC_RSP: + * When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_DEV2APP_SYNC_RSP, + * The mandatory fields are: + * IWL_TM_ATTR_SYNC_RSP for the data content responding to the user + * application command + * + * @IWL_TM_ATTR_UCODE_RX_PKT: + * When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_DEV2APP_UCODE_RX_PKT, + * The mandatory fields are: + * IWL_TM_ATTR_UCODE_RX_PKT for the data content multicast to the user + * application + * + * @IWL_TM_ATTR_EEPROM: + * When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_DEV2APP_EEPROM, + * The mandatory fields are: + * IWL_TM_ATTR_EEPROM for the data content responging to the user + * application + * + * @IWL_TM_ATTR_TRACE_ADDR: + * @IWL_TM_ATTR_TRACE_SIZE: + * @IWL_TM_ATTR_TRACE_DUMP: + * When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_XXX_TRACE, + * The mandatory fields are: + * IWL_TM_ATTR_MEM_TRACE_ADDR for the trace address + * IWL_TM_ATTR_MEM_TRACE_SIZE for the trace buffer size + * IWL_TM_ATTR_MEM_TRACE_DUMP for the trace dump + * + * @IWL_TM_ATTR_FIXRATE: + * When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_FIXRATE_REQ, + * The mandatory fields are: + * IWL_TM_ATTR_FIXRATE for the fixed rate + * + */ enum iwl_tm_attr_t { - IWL_TM_ATTR_NOT_APPLICABLE = 0, - - /* From user space to kernel space: - * the command either destines to ucode, driver, or register; - * See enum iwl_tm_cmd_t. - * - * From kernel space to user space: - * the command either carries synchronous response, - * or the spontaneous message multicast from the device; - * See enum iwl_tm_cmd_t. */ - IWL_TM_ATTR_COMMAND, - - /* When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_UCODE, - * The mandatory fields are : - * IWL_TM_ATTR_UCODE_CMD_ID for recognizable command ID; - * IWL_TM_ATTR_COMMAND_FLAG for the flags of the commands; - * The optional fields are: - * IWL_TM_ATTR_UCODE_CMD_DATA for the actual command payload - * to the ucode */ - IWL_TM_ATTR_UCODE_CMD_ID, - IWL_TM_ATTR_UCODE_CMD_DATA, - - /* When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_REG_XXX, - * The mandatory fields are: - * IWL_TM_ATTR_REG_OFFSET for the offset of the target register; - * IWL_TM_ATTR_REG_VALUE8 or IWL_TM_ATTR_REG_VALUE32 for value */ - IWL_TM_ATTR_REG_OFFSET, - IWL_TM_ATTR_REG_VALUE8, - IWL_TM_ATTR_REG_VALUE32, - - /* When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_DEV2APP_SYNC_RSP, - * The mandatory fields are: - * IWL_TM_ATTR_SYNC_RSP for the data content responding to the user - * application command */ - IWL_TM_ATTR_SYNC_RSP, - /* When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_DEV2APP_UCODE_RX_PKT, - * The mandatory fields are: - * IWL_TM_ATTR_UCODE_RX_PKT for the data content multicast to the user - * application */ - IWL_TM_ATTR_UCODE_RX_PKT, - - /* When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_DEV2APP_EEPROM, - * The mandatory fields are: - * IWL_TM_ATTR_EEPROM for the data content responging to the user - * application */ - IWL_TM_ATTR_EEPROM, - - /* When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_XXX_TRACE, - * The mandatory fields are: - * IWL_TM_ATTR_MEM_TRACE_ADDR for the trace address - */ - IWL_TM_ATTR_TRACE_ADDR, - IWL_TM_ATTR_TRACE_SIZE, - IWL_TM_ATTR_TRACE_DUMP, - - /* When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_FIXRATE_REQ, - * The mandatory fields are: - * IWL_TM_ATTR_FIXRATE for the fixed rate - */ - IWL_TM_ATTR_FIXRATE, - - IWL_TM_ATTR_MAX, + IWL_TM_ATTR_NOT_APPLICABLE = 0, + IWL_TM_ATTR_COMMAND = 1, + IWL_TM_ATTR_UCODE_CMD_ID = 2, + IWL_TM_ATTR_UCODE_CMD_DATA = 3, + IWL_TM_ATTR_REG_OFFSET = 4, + IWL_TM_ATTR_REG_VALUE8 = 5, + IWL_TM_ATTR_REG_VALUE32 = 6, + IWL_TM_ATTR_SYNC_RSP = 7, + IWL_TM_ATTR_UCODE_RX_PKT = 8, + IWL_TM_ATTR_EEPROM = 9, + IWL_TM_ATTR_TRACE_ADDR = 10, + IWL_TM_ATTR_TRACE_SIZE = 11, + IWL_TM_ATTR_TRACE_DUMP = 12, + IWL_TM_ATTR_FIXRATE = 13, + IWL_TM_ATTR_MAX = 14, }; /* uCode trace buffer */ diff --git a/drivers/net/wireless/iwlwifi/iwl-trans.c b/drivers/net/wireless/iwlwifi/iwl-trans.c new file mode 100644 index 000000000000..7b7b97d8c2e1 --- /dev/null +++ b/drivers/net/wireless/iwlwifi/iwl-trans.c @@ -0,0 +1,423 @@ +/****************************************************************************** + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2007 - 2011 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, + * USA + * + * The full GNU General Public License is included in this distribution + * in the file called LICENSE.GPL. + * + * Contact Information: + * Intel Linux Wireless <ilw@linux.intel.com> + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + * + * BSD LICENSE + * + * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + *****************************************************************************/ +#include "iwl-dev.h" +#include "iwl-trans.h" +#include "iwl-core.h" +#include "iwl-helpers.h" +/*TODO remove uneeded includes when the transport layer tx_free will be here */ +#include "iwl-agn.h" + +static int iwl_trans_rx_alloc(struct iwl_priv *priv) +{ + struct iwl_rx_queue *rxq = &priv->rxq; + struct device *dev = priv->bus.dev; + + memset(&priv->rxq, 0, sizeof(priv->rxq)); + + spin_lock_init(&rxq->lock); + INIT_LIST_HEAD(&rxq->rx_free); + INIT_LIST_HEAD(&rxq->rx_used); + + if (WARN_ON(rxq->bd || rxq->rb_stts)) + return -EINVAL; + + /* Allocate the circular buffer of Read Buffer Descriptors (RBDs) */ + rxq->bd = dma_alloc_coherent(dev, sizeof(__le32) * RX_QUEUE_SIZE, + &rxq->bd_dma, GFP_KERNEL); + if (!rxq->bd) + goto err_bd; + memset(rxq->bd, 0, sizeof(__le32) * RX_QUEUE_SIZE); + + /*Allocate the driver's pointer to receive buffer status */ + rxq->rb_stts = dma_alloc_coherent(dev, sizeof(*rxq->rb_stts), + &rxq->rb_stts_dma, GFP_KERNEL); + if (!rxq->rb_stts) + goto err_rb_stts; + memset(rxq->rb_stts, 0, sizeof(*rxq->rb_stts)); + + return 0; + +err_rb_stts: + dma_free_coherent(dev, sizeof(__le32) * RX_QUEUE_SIZE, + rxq->bd, rxq->bd_dma); + memset(&rxq->bd_dma, 0, sizeof(rxq->bd_dma)); + rxq->bd = NULL; +err_bd: + return -ENOMEM; +} + +static void iwl_trans_rxq_free_rx_bufs(struct iwl_priv *priv) +{ + struct iwl_rx_queue *rxq = &priv->rxq; + int i; + + /* Fill the rx_used queue with _all_ of the Rx buffers */ + for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) { + /* 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_FROM_DEVICE); + __iwl_free_pages(priv, rxq->pool[i].page); + rxq->pool[i].page = NULL; + } + list_add_tail(&rxq->pool[i].list, &rxq->rx_used); + } +} + +static int iwl_trans_rx_init(struct iwl_priv *priv) +{ + struct iwl_rx_queue *rxq = &priv->rxq; + int i, err; + unsigned long flags; + + if (!rxq->bd) { + err = iwl_trans_rx_alloc(priv); + if (err) + return err; + } + + spin_lock_irqsave(&rxq->lock, flags); + INIT_LIST_HEAD(&rxq->rx_free); + INIT_LIST_HEAD(&rxq->rx_used); + + iwl_trans_rxq_free_rx_bufs(priv); + + for (i = 0; i < RX_QUEUE_SIZE; i++) + rxq->queue[i] = NULL; + + /* Set us so that we have processed and used all buffers, but have + * not restocked the Rx queue with fresh buffers */ + rxq->read = rxq->write = 0; + rxq->write_actual = 0; + rxq->free_count = 0; + spin_unlock_irqrestore(&rxq->lock, flags); + + return 0; +} + +static void iwl_trans_rx_free(struct iwl_priv *priv) +{ + struct iwl_rx_queue *rxq = &priv->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"); + return; + } + + spin_lock_irqsave(&rxq->lock, flags); + iwl_trans_rxq_free_rx_bufs(priv); + spin_unlock_irqrestore(&rxq->lock, flags); + + dma_free_coherent(priv->bus.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, + 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"); + memset(&rxq->rb_stts_dma, 0, sizeof(rxq->rb_stts_dma)); + rxq->rb_stts = NULL; +} + +/* TODO:remove this code duplication */ +static inline int iwlagn_alloc_dma_ptr(struct iwl_priv *priv, + 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->dma, GFP_KERNEL); + if (!ptr->addr) + return -ENOMEM; + ptr->size = size; + return 0; +} + +static int iwl_trans_txq_alloc(struct iwl_priv *priv, struct iwl_tx_queue *txq, + int slots_num, u32 txq_id) +{ + size_t tfd_sz = priv->hw_params.tfd_size * TFD_QUEUE_SIZE_MAX; + int i; + + if (WARN_ON(txq->meta || txq->cmd || txq->txb || txq->tfds)) + return -EINVAL; + + txq->meta = kzalloc(sizeof(txq->meta[0]) * slots_num, + GFP_KERNEL); + txq->cmd = kzalloc(sizeof(txq->cmd[0]) * slots_num, + GFP_KERNEL); + + 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; + } + + /* 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]) * + TFD_QUEUE_SIZE_MAX, GFP_KERNEL); + if (!txq->txb) { + IWL_ERR(priv, "kmalloc for auxiliary BD " + "structures failed\n"); + goto error; + } + } else { + txq->txb = 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); + if (!txq->tfds) { + IWL_ERR(priv, "dma_alloc_coherent(%zd) failed\n", tfd_sz); + goto error; + } + txq->q.id = txq_id; + + return 0; +error: + kfree(txq->txb); + txq->txb = NULL; + /* since txq->cmd has been zeroed, + * all non allocated cmd[i] will be NULL */ + if (txq->cmd) + for (i = 0; i < slots_num; i++) + kfree(txq->cmd[i]); + kfree(txq->meta); + kfree(txq->cmd); + txq->meta = NULL; + txq->cmd = NULL; + + return -ENOMEM; + +} + +static int iwl_trans_txq_init(struct iwl_priv *priv, struct iwl_tx_queue *txq, + int slots_num, u32 txq_id) +{ + int ret; + + txq->need_update = 0; + memset(txq->meta, 0, sizeof(txq->meta[0]) * slots_num); + + /* + * For the default queues 0-3, set up the swq_id + * already -- all others need to get one later + * (if they need one at all). + */ + if (txq_id < 4) + iwl_set_swq_id(txq, txq_id, txq_id); + + /* TFD_QUEUE_SIZE_MAX must be power-of-two size, otherwise + * iwl_queue_inc_wrap and iwl_queue_dec_wrap are broken. */ + 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, + txq_id); + if (ret) + return ret; + + /* + * 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), + txq->q.dma_addr >> 8); + + return 0; +} + +/** + * iwl_trans_tx_alloc - allocate TX context + * Allocate all Tx DMA structures and initialize them + * + * @param priv + * @return error code + */ +static int iwl_trans_tx_alloc(struct iwl_priv *priv) +{ + int ret; + int txq_id, slots_num; + + /*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)) { + ret = -EINVAL; + goto error; + } + + ret = iwlagn_alloc_dma_ptr(priv, &priv->scd_bc_tbls, + priv->hw_params.scd_bc_tbls_size); + if (ret) { + IWL_ERR(priv, "Scheduler BC Table allocation failed\n"); + goto error; + } + + /* Alloc keep-warm buffer */ + ret = iwlagn_alloc_dma_ptr(priv, &priv->kw, IWL_KW_SIZE); + if (ret) { + IWL_ERR(priv, "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"); + 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) ? + TFD_CMD_SLOTS : TFD_TX_CMD_SLOTS; + ret = iwl_trans_txq_alloc(priv, &priv->txq[txq_id], slots_num, + txq_id); + if (ret) { + IWL_ERR(priv, "Tx %d queue alloc failed\n", txq_id); + goto error; + } + } + + return 0; + +error: + iwlagn_hw_txq_ctx_free(priv); + + return ret; +} +static int iwl_trans_tx_init(struct iwl_priv *priv) +{ + int ret; + int txq_id, slots_num; + unsigned long flags; + bool alloc = false; + + if (!priv->txq) { + ret = iwl_trans_tx_alloc(priv); + if (ret) + goto error; + alloc = true; + } + + spin_lock_irqsave(&priv->lock, flags); + + /* Turn off all Tx DMA fifos */ + iwl_write_prph(priv, IWLAGN_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); + + spin_unlock_irqrestore(&priv->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) ? + TFD_CMD_SLOTS : TFD_TX_CMD_SLOTS; + ret = iwl_trans_txq_init(priv, &priv->txq[txq_id], slots_num, + txq_id); + if (ret) { + IWL_ERR(priv, "Tx %d queue init failed\n", txq_id); + goto error; + } + } + + return 0; +error: + /*Upon error, free only if we allocated something */ + if (alloc) + iwlagn_hw_txq_ctx_free(priv); + return ret; +} + +static const struct iwl_trans_ops trans_ops = { + .rx_init = iwl_trans_rx_init, + .rx_free = iwl_trans_rx_free, + + .tx_init = iwl_trans_tx_init, +}; + +void iwl_trans_register(struct iwl_trans *trans) +{ + trans->ops = &trans_ops; +} diff --git a/drivers/net/wireless/iwlwifi/iwl-trans.h b/drivers/net/wireless/iwlwifi/iwl-trans.h new file mode 100644 index 000000000000..bec494c5a979 --- /dev/null +++ b/drivers/net/wireless/iwlwifi/iwl-trans.h @@ -0,0 +1,64 @@ +/****************************************************************************** + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2007 - 2011 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, + * USA + * + * The full GNU General Public License is included in this distribution + * in the file called LICENSE.GPL. + * + * Contact Information: + * Intel Linux Wireless <ilw@linux.intel.com> + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + * + * BSD LICENSE + * + * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + *****************************************************************************/ + +void iwl_trans_register(struct iwl_trans *trans); diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c index e72d2279fc5d..db5abaa2ff7e 100644 --- a/drivers/net/wireless/iwlwifi/iwl-tx.c +++ b/drivers/net/wireless/iwlwifi/iwl-tx.c @@ -220,24 +220,6 @@ int iwlagn_txq_attach_buf_to_tfd(struct iwl_priv *priv, return 0; } -/* - * Tell nic where to find circular buffer of Tx Frame Descriptors for - * given Tx queue, and enable the DMA channel used for that queue. - * - * supports up to 16 Tx queues in DRAM, mapped to up to 8 Tx DMA - * channels supported in hardware. - */ -static int iwlagn_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq) -{ - int txq_id = txq->q.id; - - /* Circular buffer (TFD queue in DRAM) physical base address */ - iwl_write_direct32(priv, FH_MEM_CBBC_QUEUE(txq_id), - txq->q.dma_addr >> 8); - - return 0; -} - /** * iwl_tx_queue_unmap - Unmap any remaining DMA mappings and free skb's */ @@ -392,11 +374,10 @@ int iwl_queue_space(const struct iwl_queue *q) return s; } - /** * iwl_queue_init - Initialize queue's high/low-water and read/write indexes */ -static int iwl_queue_init(struct iwl_priv *priv, struct iwl_queue *q, +int iwl_queue_init(struct iwl_priv *priv, struct iwl_queue *q, int count, int slots_num, u32 id) { q->n_bd = count; @@ -426,124 +407,6 @@ static int iwl_queue_init(struct iwl_priv *priv, struct iwl_queue *q, return 0; } -/** - * iwl_tx_queue_alloc - Alloc driver data and TFD CB for one Tx/cmd queue - */ -static int iwl_tx_queue_alloc(struct iwl_priv *priv, - struct iwl_tx_queue *txq, u32 id) -{ - struct device *dev = priv->bus.dev; - size_t tfd_sz = priv->hw_params.tfd_size * TFD_QUEUE_SIZE_MAX; - - /* Driver private data, only for Tx (not command) queues, - * not shared with device. */ - if (id != priv->cmd_queue) { - txq->txb = kzalloc(sizeof(txq->txb[0]) * - TFD_QUEUE_SIZE_MAX, GFP_KERNEL); - if (!txq->txb) { - IWL_ERR(priv, "kmalloc for auxiliary BD " - "structures failed\n"); - goto error; - } - } else { - txq->txb = NULL; - } - - /* Circular buffer of transmit frame descriptors (TFDs), - * shared with device */ - txq->tfds = dma_alloc_coherent(dev, tfd_sz, &txq->q.dma_addr, - GFP_KERNEL); - if (!txq->tfds) { - IWL_ERR(priv, "dma_alloc_coherent(%zd) failed\n", tfd_sz); - goto error; - } - txq->q.id = id; - - return 0; - - error: - kfree(txq->txb); - txq->txb = NULL; - - return -ENOMEM; -} - -/** - * iwl_tx_queue_init - Allocate and initialize one tx/cmd queue - */ -int iwl_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq, - int slots_num, u32 txq_id) -{ - int i, len; - int ret; - - txq->meta = kzalloc(sizeof(struct iwl_cmd_meta) * slots_num, - GFP_KERNEL); - txq->cmd = kzalloc(sizeof(struct iwl_device_cmd *) * slots_num, - GFP_KERNEL); - - if (!txq->meta || !txq->cmd) - goto out_free_arrays; - - len = sizeof(struct iwl_device_cmd); - for (i = 0; i < slots_num; i++) { - txq->cmd[i] = kmalloc(len, GFP_KERNEL); - if (!txq->cmd[i]) - goto err; - } - - /* Alloc driver data array and TFD circular buffer */ - ret = iwl_tx_queue_alloc(priv, txq, txq_id); - if (ret) - goto err; - - txq->need_update = 0; - - /* - * For the default queues 0-3, set up the swq_id - * already -- all others need to get one later - * (if they need one at all). - */ - if (txq_id < 4) - iwl_set_swq_id(txq, txq_id, txq_id); - - /* TFD_QUEUE_SIZE_MAX must be power-of-two size, otherwise - * iwl_queue_inc_wrap and iwl_queue_dec_wrap are broken. */ - 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, txq_id); - if (ret) - return ret; - - /* Tell device where to find queue */ - iwlagn_tx_queue_init(priv, txq); - - return 0; -err: - for (i = 0; i < slots_num; i++) - kfree(txq->cmd[i]); -out_free_arrays: - kfree(txq->meta); - kfree(txq->cmd); - - return -ENOMEM; -} - -void iwl_tx_queue_reset(struct iwl_priv *priv, struct iwl_tx_queue *txq, - int slots_num, u32 txq_id) -{ - memset(txq->meta, 0, sizeof(struct iwl_cmd_meta) * slots_num); - - txq->need_update = 0; - - /* Initialize queue's high/low-water marks, and head/tail indexes */ - iwl_queue_init(priv, &txq->q, TFD_QUEUE_SIZE_MAX, slots_num, txq_id); - - /* Tell device where to find queue */ - iwlagn_tx_queue_init(priv, txq); -} - /*************** HOST COMMAND QUEUE FUNCTIONS *****/ /** |