From: Johannes Berg Date: Mon, 23 Aug 2010 08:46:33 +0000 (+0200) Subject: iwlwifi: prepare for PAN queue/fifo assignment X-Git-Tag: firefly_0821_release~7613^2~3670^2~265^2^2~192^2~25 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=13bb9483e190b95b04b22280ec9efa6b48469fd6;p=firefly-linux-kernel-4.4.55.git iwlwifi: prepare for PAN queue/fifo assignment PAN ucode will require a different queue assignment, in particular queue 9 instead of 4 should be used for commands. This is required because the ucode will stop/start queues 4 and 8 depending on the PAN state, since queue 8 will be used for PAN multicast (after DTIM). Signed-off-by: Johannes Berg Signed-off-by: Wey-Yi Guy --- diff --git a/drivers/net/wireless/iwlwifi/iwl-3945-hw.h b/drivers/net/wireless/iwlwifi/iwl-3945-hw.h index a4a3194779d2..65b5834da28c 100644 --- a/drivers/net/wireless/iwlwifi/iwl-3945-hw.h +++ b/drivers/net/wireless/iwlwifi/iwl-3945-hw.h @@ -226,6 +226,7 @@ struct iwl3945_eeprom { /* 4 DATA + 1 CMD. There are 2 HCCA queues that are not used. */ #define IWL39_NUM_QUEUES 5 +#define IWL39_CMD_QUEUE_NUM 4 #define IWL_DEFAULT_TX_RETRY 15 diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c index f4aa229986ca..f059b1dd4d41 100644 --- a/drivers/net/wireless/iwlwifi/iwl-3945.c +++ b/drivers/net/wireless/iwlwifi/iwl-3945.c @@ -273,7 +273,7 @@ static void iwl3945_tx_queue_reclaim(struct iwl_priv *priv, struct iwl_queue *q = &txq->q; struct iwl_tx_info *tx_info; - BUG_ON(txq_id == IWL_CMD_QUEUE_NUM); + BUG_ON(txq_id == IWL39_CMD_QUEUE_NUM); for (index = iwl_queue_inc_wrap(index, q->n_bd); q->read_ptr != index; q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd)) { @@ -285,7 +285,7 @@ static void iwl3945_tx_queue_reclaim(struct iwl_priv *priv, } if (iwl_queue_space(q) > q->low_mark && (txq_id >= 0) && - (txq_id != IWL_CMD_QUEUE_NUM) && + (txq_id != IWL39_CMD_QUEUE_NUM) && priv->mac80211_registered) iwl_wake_queue(priv, txq_id); } @@ -760,7 +760,7 @@ void iwl3945_hw_build_tx_cmd_rate(struct iwl_priv *priv, data_retry_limit = IWL_DEFAULT_TX_RETRY; tx_cmd->data_retry_limit = data_retry_limit; - if (tx_id >= IWL_CMD_QUEUE_NUM) + if (tx_id >= IWL39_CMD_QUEUE_NUM) rts_retry_limit = 3; else rts_retry_limit = 7; @@ -909,7 +909,7 @@ static int iwl3945_txq_ctx_reset(struct iwl_priv *priv) /* Tx queue(s) */ for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++) { - slots_num = (txq_id == IWL_CMD_QUEUE_NUM) ? + slots_num = (txq_id == IWL39_CMD_QUEUE_NUM) ? TFD_CMD_SLOTS : TFD_TX_CMD_SLOTS; rc = iwl_tx_queue_init(priv, &priv->txq[txq_id], slots_num, txq_id); @@ -1072,7 +1072,7 @@ void iwl3945_hw_txq_ctx_free(struct iwl_priv *priv) if (priv->txq) for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++) - if (txq_id == IWL_CMD_QUEUE_NUM) + if (txq_id == IWL39_CMD_QUEUE_NUM) iwl_cmd_queue_free(priv); else iwl_tx_queue_free(priv, txq_id); diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c index 82f32305f50e..cda389c3b025 100644 --- a/drivers/net/wireless/iwlwifi/iwl-4965.c +++ b/drivers/net/wireless/iwlwifi/iwl-4965.c @@ -576,7 +576,7 @@ static int iwl4965_alive_notify(struct iwl_priv *priv) /* Activate all Tx DMA/FIFO channels */ priv->cfg->ops->lib->txq_set_sched(priv, IWL_MASK(0, 6)); - iwl4965_set_wr_ptrs(priv, IWL_CMD_QUEUE_NUM, 0); + iwl4965_set_wr_ptrs(priv, IWL_DEFAULT_CMD_QUEUE_NUM, 0); /* make sure all queue are not stopped */ memset(&priv->queue_stopped[0], 0, sizeof(priv->queue_stopped)); @@ -587,6 +587,7 @@ static int iwl4965_alive_notify(struct iwl_priv *priv) priv->txq_ctx_active_msk = 0; /* Map each Tx/cmd queue to its corresponding fifo */ BUILD_BUG_ON(ARRAY_SIZE(default_queue_to_tx_fifo) != 7); + for (i = 0; i < ARRAY_SIZE(default_queue_to_tx_fifo); i++) { int ac = default_queue_to_tx_fifo[i]; diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-lib.c b/drivers/net/wireless/iwlwifi/iwl-agn-lib.c index 531a7dc3dc72..f919977d5632 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-lib.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-lib.c @@ -1479,7 +1479,7 @@ int iwlagn_wait_tx_queue_empty(struct iwl_priv *priv) /* waiting for all the tx frames complete might take a while */ for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) { - if (cnt == IWL_CMD_QUEUE_NUM) + if (cnt == priv->cmd_queue) continue; txq = &priv->txq[cnt]; q = &txq->q; diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c index a51a7cfa5a14..88b7bbfb1f91 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c @@ -118,7 +118,7 @@ void iwlagn_txq_update_byte_cnt_tbl(struct iwl_priv *priv, WARN_ON(len > 0xFFF || write_ptr >= TFD_QUEUE_SIZE_MAX); - if (txq_id != IWL_CMD_QUEUE_NUM) { + if (txq_id != priv->cmd_queue) { sta_id = txq->cmd[txq->q.write_ptr]->cmd.tx.sta_id; sec_ctl = txq->cmd[txq->q.write_ptr]->cmd.tx.sec_ctl; @@ -155,7 +155,7 @@ void iwlagn_txq_inval_byte_cnt_tbl(struct iwl_priv *priv, WARN_ON(read_ptr >= TFD_QUEUE_SIZE_MAX); - if (txq_id != IWL_CMD_QUEUE_NUM) + if (txq_id != priv->cmd_queue) sta_id = txq->cmd[read_ptr]->cmd.tx.sta_id; bc_ent = cpu_to_le16(1 | (sta_id << 12)); @@ -825,7 +825,7 @@ void iwlagn_hw_txq_ctx_free(struct iwl_priv *priv) /* Tx queues */ if (priv->txq) { for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++) - if (txq_id == IWL_CMD_QUEUE_NUM) + if (txq_id == priv->cmd_queue) iwl_cmd_queue_free(priv); else iwl_tx_queue_free(priv, txq_id); @@ -882,9 +882,9 @@ int iwlagn_txq_ctx_alloc(struct iwl_priv *priv) spin_unlock_irqrestore(&priv->lock, flags); - /* Alloc and init all Tx queues, including the command queue (#4) */ + /* 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 == IWL_CMD_QUEUE_NUM) ? + 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); @@ -922,7 +922,7 @@ void iwlagn_txq_ctx_reset(struct iwl_priv *priv) /* 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 == IWL_CMD_QUEUE_NUM ? + 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); } diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-ucode.c b/drivers/net/wireless/iwlwifi/iwl-agn-ucode.c index f2499e1f2047..a9ea7a1fef02 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-ucode.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-ucode.c @@ -52,6 +52,19 @@ static const s8 iwlagn_default_queue_to_tx_fifo[] = { IWL_TX_FIFO_UNUSED, }; +static const s8 iwlagn_ipan_queue_to_tx_fifo[] = { + IWL_TX_FIFO_VO, + IWL_TX_FIFO_VI, + IWL_TX_FIFO_BE, + IWL_TX_FIFO_BK, + IWL_TX_FIFO_UNUSED, /* FIXME */ + IWL_TX_FIFO_UNUSED, /* FIXME */ + IWL_TX_FIFO_UNUSED, /* FIXME */ + IWL_TX_FIFO_UNUSED, /* FIXME */ + IWL_TX_FIFO_UNUSED, /* FIXME */ + IWLAGN_CMD_FIFO_NUM, +}; + static struct iwl_wimax_coex_event_entry cu_priorities[COEX_NUM_OF_EVENTS] = { {COEX_CU_UNASSOC_IDLE_RP, COEX_CU_UNASSOC_IDLE_WP, 0, COEX_UNASSOC_IDLE_FLAGS}, @@ -376,6 +389,7 @@ static void iwlagn_send_bt_env(struct iwl_priv *priv, u8 action, u8 type) int iwlagn_alive_notify(struct iwl_priv *priv) { + const s8 *queues; u32 a; unsigned long flags; int i, chan; @@ -410,7 +424,7 @@ int iwlagn_alive_notify(struct iwl_priv *priv) reg_val | FH_TX_CHICKEN_BITS_SCD_AUTO_RETRY_EN); iwl_write_prph(priv, IWLAGN_SCD_QUEUECHAIN_SEL, - IWLAGN_SCD_QUEUECHAIN_SEL_ALL(priv->hw_params.max_txq_num)); + IWLAGN_SCD_QUEUECHAIN_SEL_ALL(priv)); iwl_write_prph(priv, IWLAGN_SCD_AGGR_SEL, 0); /* initiate the queues */ @@ -436,7 +450,13 @@ int iwlagn_alive_notify(struct iwl_priv *priv) /* Activate all Tx DMA/FIFO channels */ priv->cfg->ops->lib->txq_set_sched(priv, IWL_MASK(0, 7)); - iwlagn_set_wr_ptrs(priv, IWL_CMD_QUEUE_NUM, 0); + /* map queues to FIFOs */ + if (priv->valid_contexts != BIT(IWL_RXON_CTX_BSS)) + queues = iwlagn_ipan_queue_to_tx_fifo; + else + queues = iwlagn_default_queue_to_tx_fifo; + + iwlagn_set_wr_ptrs(priv, priv->cmd_queue, 0); /* make sure all queue are not stopped */ memset(&priv->queue_stopped[0], 0, sizeof(priv->queue_stopped)); @@ -445,11 +465,12 @@ int iwlagn_alive_notify(struct iwl_priv *priv) /* reset to 0 to enable all the queue first */ priv->txq_ctx_active_msk = 0; - /* map qos queues to fifos one-to-one */ + BUILD_BUG_ON(ARRAY_SIZE(iwlagn_default_queue_to_tx_fifo) != 10); + BUILD_BUG_ON(ARRAY_SIZE(iwlagn_ipan_queue_to_tx_fifo) != 10); - for (i = 0; i < ARRAY_SIZE(iwlagn_default_queue_to_tx_fifo); i++) { - int ac = iwlagn_default_queue_to_tx_fifo[i]; + for (i = 0; i < 10; i++) { + int ac = queues[i]; iwl_txq_ctx_activate(priv, i); diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c index e073069a44c2..cfc8e8de8798 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn.c @@ -3011,6 +3011,9 @@ static int __iwl_up(struct iwl_priv *priv) iwl_write32(priv, CSR_INT, 0xFFFFFFFF); + /* must be initialised before iwl_hw_nic_init */ + priv->cmd_queue = IWL_DEFAULT_CMD_QUEUE_NUM; + ret = iwlagn_hw_nic_init(priv); if (ret) { IWL_ERR(priv, "Unable to init nic\n"); diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c index cc88401960e4..f6aa5ce478b4 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.c +++ b/drivers/net/wireless/iwlwifi/iwl-core.c @@ -2757,14 +2757,14 @@ void iwl_bg_monitor_recover(unsigned long data) return; /* monitor and check for stuck cmd queue */ - if (iwl_check_stuck_queue(priv, IWL_CMD_QUEUE_NUM)) + if (iwl_check_stuck_queue(priv, priv->cmd_queue)) return; /* monitor and check for other stuck queues */ if (iwl_is_any_associated(priv)) { for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) { /* skip as we already checked the command queue */ - if (cnt == IWL_CMD_QUEUE_NUM) + if (cnt == priv->cmd_queue) continue; if (iwl_check_stuck_queue(priv, cnt)) return; diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h index 6b188926014b..7cafb26a5f52 100644 --- a/drivers/net/wireless/iwlwifi/iwl-dev.h +++ b/drivers/net/wireless/iwlwifi/iwl-dev.h @@ -265,11 +265,10 @@ struct iwl_channel_info { #define IWL_MIN_NUM_QUEUES 10 /* - * Queue #4 is the command queue for 3945/4965/5x00/1000/6x00, - * the driver maps it into the appropriate device FIFO for the - * uCode. + * Command queue depends on iPAN support. */ -#define IWL_CMD_QUEUE_NUM 4 +#define IWL_DEFAULT_CMD_QUEUE_NUM 4 +#define IWL_IPAN_CMD_QUEUE_NUM 9 /* Power management (not Tx power) structures */ @@ -1197,6 +1196,9 @@ struct iwl_priv { /* microcode/device supports multiple contexts */ u8 valid_contexts; + /* command queue number */ + u8 cmd_queue; + /* EEPROM MAC addresses */ struct mac_address addresses[2]; diff --git a/drivers/net/wireless/iwlwifi/iwl-hcmd.c b/drivers/net/wireless/iwlwifi/iwl-hcmd.c index 1f15b3aa8478..9fb2035e4eca 100644 --- a/drivers/net/wireless/iwlwifi/iwl-hcmd.c +++ b/drivers/net/wireless/iwlwifi/iwl-hcmd.c @@ -232,7 +232,7 @@ cancel: * in later, it will possibly set an invalid * address (cmd->meta.source). */ - priv->txq[IWL_CMD_QUEUE_NUM].meta[cmd_idx].flags &= + priv->txq[priv->cmd_queue].meta[cmd_idx].flags &= ~CMD_WANT_SKB; } fail: diff --git a/drivers/net/wireless/iwlwifi/iwl-prph.h b/drivers/net/wireless/iwlwifi/iwl-prph.h index b1f101caf19d..5469655646ae 100644 --- a/drivers/net/wireless/iwlwifi/iwl-prph.h +++ b/drivers/net/wireless/iwlwifi/iwl-prph.h @@ -306,7 +306,7 @@ * at a time, until receiving ACK from receiving station, or reaching * retry limit and giving up. * - * The command queue (#4) must use this mode! + * The command queue (#4/#9) must use this mode! * This mode does not require use of the Byte Count table in host DRAM. * * Driver controls scheduler operation via 3 means: @@ -322,7 +322,7 @@ * (1024 bytes for each queue). * * After receiving "Alive" response from uCode, driver must initialize - * the scheduler (especially for queue #4, the command queue, otherwise + * the scheduler (especially for queue #4/#9, the command queue, otherwise * the driver can't issue commands!): */ @@ -555,8 +555,9 @@ #define IWLAGN_SCD_TRANSLATE_TBL_OFFSET_QUEUE(x) \ ((IWLAGN_SCD_TRANSLATE_TBL_OFFSET + ((x) * 2)) & 0xfffc) -#define IWLAGN_SCD_QUEUECHAIN_SEL_ALL(x) (((1<<(x)) - 1) &\ - (~(1<hw_params.max_txq_num) - 1) &\ + (~(1<<(priv)->cmd_queue))) #define IWLAGN_SCD_BASE (PRPH_BASE + 0xa02c00) diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c index c308dab14673..347d3dc6a015 100644 --- a/drivers/net/wireless/iwlwifi/iwl-tx.c +++ b/drivers/net/wireless/iwlwifi/iwl-tx.c @@ -134,7 +134,7 @@ EXPORT_SYMBOL(iwl_tx_queue_free); */ void iwl_cmd_queue_free(struct iwl_priv *priv) { - struct iwl_tx_queue *txq = &priv->txq[IWL_CMD_QUEUE_NUM]; + struct iwl_tx_queue *txq = &priv->txq[priv->cmd_queue]; struct iwl_queue *q = &txq->q; struct device *dev = &priv->pci_dev->dev; int i; @@ -271,7 +271,7 @@ static int iwl_tx_queue_alloc(struct iwl_priv *priv, /* Driver private data, only for Tx (not command) queues, * not shared with device. */ - if (id != IWL_CMD_QUEUE_NUM) { + if (id != priv->cmd_queue) { txq->txb = kzalloc(sizeof(txq->txb[0]) * TFD_QUEUE_SIZE_MAX, GFP_KERNEL); if (!txq->txb) { @@ -314,13 +314,13 @@ int iwl_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq, /* * Alloc buffer array for commands (Tx or other types of commands). - * For the command queue (#4), allocate command space + one big + * For the command queue (#4/#9), allocate command space + one big * command for scan, since scan command is very huge; the system will * not have two scans at the same time, so only one is needed. * For normal Tx queues (all other queues), no super-size command * space is needed. */ - if (txq_id == IWL_CMD_QUEUE_NUM) + if (txq_id == priv->cmd_queue) actual_slots++; txq->meta = kzalloc(sizeof(struct iwl_cmd_meta) * actual_slots, @@ -355,7 +355,7 @@ int iwl_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq, * need an swq_id so don't set one to catch errors, all others can * be set up to the identity mapping. */ - if (txq_id != IWL_CMD_QUEUE_NUM) + if (txq_id != priv->cmd_queue) txq->swq_id = txq_id; /* TFD_QUEUE_SIZE_MAX must be power-of-two size, otherwise @@ -385,7 +385,7 @@ void iwl_tx_queue_reset(struct iwl_priv *priv, struct iwl_tx_queue *txq, { int actual_slots = slots_num; - if (txq_id == IWL_CMD_QUEUE_NUM) + if (txq_id == priv->cmd_queue) actual_slots++; memset(txq->meta, 0, sizeof(struct iwl_cmd_meta) * actual_slots); @@ -413,7 +413,7 @@ EXPORT_SYMBOL(iwl_tx_queue_reset); */ int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd) { - struct iwl_tx_queue *txq = &priv->txq[IWL_CMD_QUEUE_NUM]; + struct iwl_tx_queue *txq = &priv->txq[priv->cmd_queue]; struct iwl_queue *q = &txq->q; struct iwl_device_cmd *out_cmd; struct iwl_cmd_meta *out_meta; @@ -483,7 +483,7 @@ int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd) * information */ out_cmd->hdr.flags = 0; - out_cmd->hdr.sequence = cpu_to_le16(QUEUE_TO_SEQ(IWL_CMD_QUEUE_NUM) | + out_cmd->hdr.sequence = cpu_to_le16(QUEUE_TO_SEQ(priv->cmd_queue) | INDEX_TO_SEQ(q->write_ptr)); if (cmd->flags & CMD_SIZE_HUGE) out_cmd->hdr.sequence |= SEQ_HUGE_FRAME; @@ -500,15 +500,15 @@ int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd) get_cmd_string(out_cmd->hdr.cmd), out_cmd->hdr.cmd, le16_to_cpu(out_cmd->hdr.sequence), fix_size, - q->write_ptr, idx, IWL_CMD_QUEUE_NUM); - break; + q->write_ptr, idx, priv->cmd_queue); + break; default: IWL_DEBUG_HC(priv, "Sending command %s (#%x), seq: 0x%04X, " "%d bytes at %d[%d]:%d\n", get_cmd_string(out_cmd->hdr.cmd), out_cmd->hdr.cmd, le16_to_cpu(out_cmd->hdr.sequence), fix_size, - q->write_ptr, idx, IWL_CMD_QUEUE_NUM); + q->write_ptr, idx, priv->cmd_queue); } #endif txq->need_update = 1; @@ -587,16 +587,16 @@ void iwl_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb) bool huge = !!(pkt->hdr.sequence & SEQ_HUGE_FRAME); struct iwl_device_cmd *cmd; struct iwl_cmd_meta *meta; - struct iwl_tx_queue *txq = &priv->txq[IWL_CMD_QUEUE_NUM]; + struct iwl_tx_queue *txq = &priv->txq[priv->cmd_queue]; /* If a Tx command is being handled and it isn't in the actual * command queue then there a command routing bug has been introduced * in the queue management code. */ - if (WARN(txq_id != IWL_CMD_QUEUE_NUM, - "wrong command queue %d, sequence 0x%X readp=%d writep=%d\n", - txq_id, sequence, - priv->txq[IWL_CMD_QUEUE_NUM].q.read_ptr, - priv->txq[IWL_CMD_QUEUE_NUM].q.write_ptr)) { + if (WARN(txq_id != priv->cmd_queue, + "wrong command queue %d (should be %d), sequence 0x%X readp=%d writep=%d\n", + txq_id, priv->cmd_queue, sequence, + priv->txq[priv->cmd_queue].q.read_ptr, + priv->txq[priv->cmd_queue].q.write_ptr)) { iwl_print_hex_error(priv, pkt, 32); return; } diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c index 234d6b430fcf..02e0a9bbad16 100644 --- a/drivers/net/wireless/iwlwifi/iwl3945-base.c +++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c @@ -4001,6 +4001,8 @@ static int iwl3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e priv = hw->priv; SET_IEEE80211_DEV(hw, &pdev->dev); + priv->cmd_queue = IWL39_CMD_QUEUE_NUM; + /* 3945 has only one valid context */ priv->valid_contexts = BIT(IWL_RXON_CTX_BSS);