iwlwifi: print the scratch of all the buffers stuck in a queue

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/drivers/net/wireless/iwlwifi/pcie/trans.c b/drivers/net/wireless/iwlwifi/pcie/trans.c
index cc935168ae52..c6f53af639c6 100644
--- a/drivers/net/wireless/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/iwlwifi/pcie/trans.c
@@ -296,6 +296,7 @@ static void iwlagn_free_dma_ptr(struct iwl_trans *trans,
 static void iwl_trans_pcie_queue_stuck_timer(unsigned long data)
 {
         struct iwl_tx_queue *txq = (void *)data;
+        struct iwl_queue *q = &txq->q;
         struct iwl_trans_pcie *trans_pcie = txq->trans_pcie;
         struct iwl_trans *trans = iwl_trans_pcie_get_trans(trans_pcie);
         u32 scd_sram_addr = trans_pcie->scd_base_addr +
@@ -346,6 +347,14 @@ static void iwl_trans_pcie_queue_stuck_timer(unsigned long data)
                         iwl_read_prph(trans, SCD_QUEUE_WRPTR(i)));
         }
 
+        for (i = q->read_ptr; i != q->write_ptr;
+             i = iwl_queue_inc_wrap(i, q->n_bd)) {
+                struct iwl_tx_cmd *tx_cmd =
+                        (struct iwl_tx_cmd *)txq->entries[i].cmd->payload;
+                IWL_ERR(trans, "scratch %d = 0x%08x\n", i,
+                        get_unaligned_le32(&tx_cmd->scratch));
+        }
+
         iwl_op_mode_nic_error(trans->op_mode);
 }