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 <golan.ben.ami@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/fw-dbg.c b/drivers/net/wireless/intel/iwlwifi/mvm/fw-dbg.c
index e25171f..442e13e 100644 (file)
--- 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,