From 32b258e9e55cffd5f6c4e27285a43a1cdf7385a4 Mon Sep 17 00:00:00 2001 From: Sara Sharon Date: Tue, 31 Jul 2018 09:54:26 +0300 Subject: [PATCH] iwlwifi: dbg: split fifos dump Split the dump of RXF and TXF. This is in order to enable code reuse for INI, which may decide to dump only RXF and not TXF, and vice versa. Signed-off-by: Sara Sharon Signed-off-by: Luca Coelho --- drivers/net/wireless/intel/iwlwifi/fw/dbg.c | 52 +++++++++++++++------ 1 file changed, 39 insertions(+), 13 deletions(-) diff --git a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c index 67e6a35f14c46..6243b503d0b0c 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c +++ b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c @@ -225,17 +225,13 @@ static void iwl_fwrt_dump_txf(struct iwl_fw_runtime *fwrt, *dump_data = iwl_fw_error_next_data(*dump_data); } -static void iwl_fw_dump_fifos(struct iwl_fw_runtime *fwrt, - struct iwl_fw_error_dump_data **dump_data) +static void iwl_fw_dump_rxf(struct iwl_fw_runtime *fwrt, + struct iwl_fw_error_dump_data **dump_data) { - struct iwl_fw_error_dump_fifo *fifo_hdr; struct iwl_fwrt_shared_mem_cfg *cfg = &fwrt->smem_cfg; - u32 *fifo_data; - u32 fifo_len; unsigned long flags; - int i, j; - IWL_DEBUG_INFO(fwrt, "WRT FIFO dump\n"); + IWL_DEBUG_INFO(fwrt, "WRT RX FIFO dump\n"); if (!iwl_trans_grab_nic_access(fwrt->trans, &flags)) return; @@ -254,6 +250,24 @@ static void iwl_fw_dump_fifos(struct iwl_fw_runtime *fwrt, LMAC2_PRPH_OFFSET, 2); } + iwl_trans_release_nic_access(fwrt->trans, &flags); +} + +static void iwl_fw_dump_txf(struct iwl_fw_runtime *fwrt, + struct iwl_fw_error_dump_data **dump_data) +{ + struct iwl_fw_error_dump_fifo *fifo_hdr; + struct iwl_fwrt_shared_mem_cfg *cfg = &fwrt->smem_cfg; + u32 *fifo_data; + u32 fifo_len; + unsigned long flags; + int i, j; + + IWL_DEBUG_INFO(fwrt, "WRT TX FIFO dump\n"); + + if (!iwl_trans_grab_nic_access(fwrt->trans, &flags)) + return; + if (iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_TXF)) { /* Pull TXF data from LMAC1 */ for (i = 0; i < fwrt->smem_cfg.num_txfifo_entries; i++) { @@ -595,8 +609,8 @@ static void iwl_fw_dump_mem(struct iwl_fw_runtime *fwrt, do {size_t item = item_len; len += (!!item) * const_len + item; } \ while (0) -static int iwl_fw_fifo_len(struct iwl_fw_runtime *fwrt, - struct iwl_fwrt_shared_mem_cfg *mem_cfg) +static int iwl_fw_rxf_len(struct iwl_fw_runtime *fwrt, + struct iwl_fwrt_shared_mem_cfg *mem_cfg) { size_t hdr_len = sizeof(struct iwl_fw_error_dump_data) + sizeof(struct iwl_fw_error_dump_fifo); @@ -604,7 +618,7 @@ static int iwl_fw_fifo_len(struct iwl_fw_runtime *fwrt, int i; if (!iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_RXF)) - goto dump_txf; + return 0; /* Count RXF2 size */ ADD_LEN(fifo_len, mem_cfg->rxfifo2_size, hdr_len); @@ -613,7 +627,17 @@ static int iwl_fw_fifo_len(struct iwl_fw_runtime *fwrt, for (i = 0; i < mem_cfg->num_lmacs; i++) ADD_LEN(fifo_len, mem_cfg->lmac[i].rxfifo1_size, hdr_len); -dump_txf: + return fifo_len; +} + +static int iwl_fw_txf_len(struct iwl_fw_runtime *fwrt, + struct iwl_fwrt_shared_mem_cfg *mem_cfg) +{ + size_t hdr_len = sizeof(struct iwl_fw_error_dump_data) + + sizeof(struct iwl_fw_error_dump_fifo); + u32 fifo_len = 0; + int i; + if (!iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_TXF)) goto dump_internal_txf; @@ -697,7 +721,8 @@ _iwl_fw_error_dump(struct iwl_fw_runtime *fwrt, /* reading RXF/TXF sizes */ if (test_bit(STATUS_FW_ERROR, &fwrt->trans->status)) { - fifo_len = iwl_fw_fifo_len(fwrt, mem_cfg); + fifo_len = iwl_fw_rxf_len(fwrt, mem_cfg); + fifo_len += iwl_fw_txf_len(fwrt, mem_cfg); /* Make room for PRPH registers */ if (!fwrt->trans->cfg->gen2 && @@ -817,7 +842,8 @@ _iwl_fw_error_dump(struct iwl_fw_runtime *fwrt, /* We only dump the FIFOs if the FW is in error state */ if (fifo_len) { - iwl_fw_dump_fifos(fwrt, &dump_data); + iwl_fw_dump_rxf(fwrt, &dump_data); + iwl_fw_dump_txf(fwrt, &dump_data); if (radio_len) iwl_read_radio_regs(fwrt, &dump_data); } -- 2.30.2