From e87e2639f9ca9bc273e5d67d84cf6880d42d92af Mon Sep 17 00:00:00 2001 From: Golan Ben-Ami Date: Wed, 6 Apr 2016 11:59:50 +0300 Subject: [PATCH] iwlwifi: mvm: add more registers to dump upon error Add UREG, RXFC, RFH, WMAL and RL2P registers to the prph dump upon error. These regesiters could help to debug MSI-X and other issues. These register should be dumped only when multi-queue rx is supported so separate the prph ranges static array to two different arrays, and enable dumping different prph ranges according to run-time decision. Signed-off-by: Golan Ben-Ami Signed-off-by: Luca Coelho --- .../net/wireless/intel/iwlwifi/mvm/fw-dbg.c | 53 +++++++++++++++---- 1 file changed, 44 insertions(+), 9 deletions(-) diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/fw-dbg.c b/drivers/net/wireless/intel/iwlwifi/mvm/fw-dbg.c index e25171f9b407..442e13e1b32c 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/fw-dbg.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/fw-dbg.c @@ -339,9 +339,11 @@ void iwl_mvm_free_fw_dump_desc(struct iwl_mvm *mvm) #define IWL8260_ICCM_OFFSET 0x44000 /* Only for B-step */ #define IWL8260_ICCM_LEN 0xC000 /* Only for B-step */ -static const struct { +struct iwl_prph_range { u32 start, end; -} iwl_prph_dump_addr[] = { +}; + +static const struct iwl_prph_range iwl_prph_dump_addr_comm[] = { { .start = 0x00a00000, .end = 0x00a00000 }, { .start = 0x00a0000c, .end = 0x00a00024 }, { .start = 0x00a0002c, .end = 0x00a0003c }, @@ -439,8 +441,18 @@ static const struct { { .start = 0x00a44000, .end = 0x00a7bf80 }, }; +static const struct iwl_prph_range iwl_prph_dump_addr_9000[] = { + { .start = 0x00a05c00, .end = 0x00a05c18 }, + { .start = 0x00a05400, .end = 0x00a056e8 }, + { .start = 0x00a08000, .end = 0x00a098bc }, + { .start = 0x00adfc00, .end = 0x00adfd1c }, + { .start = 0x00a02400, .end = 0x00a02758 }, +}; + static u32 iwl_dump_prph(struct iwl_trans *trans, - struct iwl_fw_error_dump_data **data) + struct iwl_fw_error_dump_data **data, + const struct iwl_prph_range *iwl_prph_dump_addr, + u32 range_len) { struct iwl_fw_error_dump_prph *prph; unsigned long flags; @@ -449,7 +461,7 @@ static u32 iwl_dump_prph(struct iwl_trans *trans, if (!iwl_trans_grab_nic_access(trans, &flags)) return 0; - for (i = 0; i < ARRAY_SIZE(iwl_prph_dump_addr); i++) { + for (i = 0; i < range_len; i++) { /* The range includes both boundaries */ int num_bytes_in_chunk = iwl_prph_dump_addr[i].end - iwl_prph_dump_addr[i].start + 4; @@ -572,16 +584,31 @@ void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm) } /* Make room for PRPH registers */ - for (i = 0; i < ARRAY_SIZE(iwl_prph_dump_addr); i++) { + for (i = 0; i < ARRAY_SIZE(iwl_prph_dump_addr_comm); i++) { /* The range includes both boundaries */ - int num_bytes_in_chunk = iwl_prph_dump_addr[i].end - - iwl_prph_dump_addr[i].start + 4; + int num_bytes_in_chunk = + iwl_prph_dump_addr_comm[i].end - + iwl_prph_dump_addr_comm[i].start + 4; prph_len += sizeof(*dump_data) + sizeof(struct iwl_fw_error_dump_prph) + num_bytes_in_chunk; } + if (mvm->cfg->mq_rx_supported) { + for (i = 0; i < + ARRAY_SIZE(iwl_prph_dump_addr_9000); i++) { + /* The range includes both boundaries */ + int num_bytes_in_chunk = + iwl_prph_dump_addr_9000[i].end - + iwl_prph_dump_addr_9000[i].start + 4; + + prph_len += sizeof(*dump_data) + + sizeof(struct iwl_fw_error_dump_prph) + + num_bytes_in_chunk; + } + } + if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_7000) radio_len = sizeof(*dump_data) + RADIO_REG_MAX_READ; } @@ -769,8 +796,16 @@ void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm) } } - if (prph_len) - iwl_dump_prph(mvm->trans, &dump_data); + if (prph_len) { + iwl_dump_prph(mvm->trans, &dump_data, + iwl_prph_dump_addr_comm, + ARRAY_SIZE(iwl_prph_dump_addr_comm)); + + if (mvm->cfg->mq_rx_supported) + iwl_dump_prph(mvm->trans, &dump_data, + iwl_prph_dump_addr_9000, + ARRAY_SIZE(iwl_prph_dump_addr_9000)); + } dump_trans_data: fw_error_dump->trans_ptr = iwl_trans_dump_data(mvm->trans, -- 2.20.1