wifi: iwlwifi: remove bc_table_dword transport config

There's really no point in configuring this, it's just
a question of hardware capability. Remove it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250503224232.6af4ea001226.I693f72a7c3a76e44f9ef2cefd62d606ad100a734@changeid

Author: jmberg-intel

drivers/net/wireless/intel/iwlwifi/iwl-trans.h

@@ -401,8 +401,6 @@ struct iwl_dump_sanitize_ops {
  * @n_no_reclaim_cmds: # of commands in list
  * @rx_buf_size: RX buffer size needed for A-MSDUs
  *	if unset 4k will be the RX buffer size
- * @bc_table_dword: set to true if the BC table expects the byte count to be
- *	in DWORD (as opposed to bytes)
  * @scd_set_active: should the transport configure the SCD for HCMD queue
  * @command_groups: array of command groups, each member is an array of the
  *	commands in the group; for debugging only
@@ -423,7 +421,6 @@ struct iwl_trans_config {
 	unsigned int n_no_reclaim_cmds;
 
 	enum iwl_amsdu_size rx_buf_size;
-	bool bc_table_dword;
 	bool scd_set_active;
 	const struct iwl_hcmd_arr *command_groups;
 	int command_groups_size;

drivers/net/wireless/intel/iwlwifi/mvm/ops.c

@@ -1445,8 +1445,6 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
 	trans_cfg.rx_buf_size = iwl_amsdu_size_to_rxb_size();
 
 	trans->wide_cmd_header = true;
-	trans_cfg.bc_table_dword =
-		mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_AX210;
 
 	trans_cfg.command_groups = iwl_mvm_groups;
 	trans_cfg.command_groups_size = ARRAY_SIZE(iwl_mvm_groups);

drivers/net/wireless/intel/iwlwifi/pcie/internal.h

@@ -289,7 +289,6 @@ enum iwl_pcie_imr_status {
 /**
  * struct iwl_pcie_txqs - TX queues data
  *
- * @bc_table_dword: true if the BC table expects DWORD (as opposed to bytes)
  * @page_offs: offset from skb->cb to mac header page pointer
  * @dev_cmd_offs: offset from skb->cb to iwl_device_tx_cmd pointer
  * @queue_used: bit mask of used queues
@@ -315,7 +314,6 @@ struct iwl_pcie_txqs {
 	struct iwl_txq *txq[IWL_MAX_TVQM_QUEUES];
 	struct dma_pool *bc_pool;
 	size_t bc_tbl_size;
-	bool bc_table_dword;
 	u8 page_offs;
 	u8 dev_cmd_offs;
 	struct iwl_tso_hdr_page __percpu *tso_hdr_page;

drivers/net/wireless/intel/iwlwifi/pcie/trans.c

@@ -1993,7 +1993,6 @@ void iwl_trans_pcie_configure(struct iwl_trans *trans,
 	if (trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_AX210)
 		trans_pcie->supported_dma_mask = DMA_BIT_MASK(11);
 
-	trans_pcie->txqs.bc_table_dword = trans_cfg->bc_table_dword;
 	trans_pcie->scd_set_active = trans_cfg->scd_set_active;
 
 	trans->command_groups = trans_cfg->command_groups;

drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c

@@ -561,7 +561,6 @@ static void iwl_pcie_gen2_update_byte_tbl(struct iwl_trans *trans,
 					  struct iwl_txq *txq, u16 byte_cnt,
 					  int num_tbs)
 {
-	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
 	int idx = iwl_txq_get_cmd_index(txq, txq->write_ptr);
 	u8 filled_tfd_size, num_fetch_chunks;
 	u16 len = byte_cnt;
@@ -585,16 +584,12 @@ static void iwl_pcie_gen2_update_byte_tbl(struct iwl_trans *trans,
 	if (trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_AX210) {
 		struct iwl_gen3_bc_tbl_entry *scd_bc_tbl_gen3 = txq->bc_tbl.addr;
 
-		/* Starting from AX210, the HW expects bytes */
-		WARN_ON(trans_pcie->txqs.bc_table_dword);
 		WARN_ON(len > 0x3FFF);
 		bc_ent = cpu_to_le16(len | (num_fetch_chunks << 14));
 		scd_bc_tbl_gen3[idx].tfd_offset = bc_ent;
 	} else {
 		struct iwlagn_scd_bc_tbl *scd_bc_tbl = txq->bc_tbl.addr;
 
-		/* Before AX210, the HW expects DW */
-		WARN_ON(!trans_pcie->txqs.bc_table_dword);
 		len = DIV_ROUND_UP(len, 4);
 		WARN_ON(len > 0xFFF);
 		bc_ent = cpu_to_le16(len | (num_fetch_chunks << 12));

drivers/net/wireless/intel/iwlwifi/pcie/tx.c

@@ -2095,7 +2095,8 @@ static void iwl_txq_gen1_update_byte_cnt_tbl(struct iwl_trans *trans,
 		len += IEEE80211_WEP_IV_LEN + IEEE80211_WEP_ICV_LEN;
 		break;
 	}
-	if (trans_pcie->txqs.bc_table_dword)
+
+	if (trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_AX210)
 		len = DIV_ROUND_UP(len, 4);
 
 	if (WARN_ON(len > 0xFFF || write_ptr >= TFD_QUEUE_SIZE_MAX))