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iwlwifi: mvm: write the correct internal TXF index 

The TX fifos are arranged consecutively in the SMEM, beginning
with the regular fifos, and tailed by the internal fifos.
In the current code, while trying to read the internal fifos,
we read the fifos beginning with the index zero.
By doing this we actually re-read the regular fifos.

In order to read the internal fifos, start the reading index
from the number of regular fifos configured by the fw.

Signed-off-by: Golan Ben-Ami <golan.ben.ami@intel.com>
Fixes: 39654cb3a6 ("iwlwifi: don't access a nonexistent register upon assert")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
This commit is contained in:
Golan Ben-Ami 2016-06-15 09:16:24 +03:00 committed by Luca Coelho
parent d5d0689aef
commit e7c9bd1cc6
1 changed files with 2 additions and 1 deletions
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3
drivers/net/wireless/intel/iwlwifi/mvm/fw-dbg.c
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@ -288,7 +288,8 @@ static void iwl_mvm_dump_fifos(struct iwl_mvm *mvm,
fifo_hdr->fifo_num = cpu_to_le32(i);
/* Mark the number of TXF we're pulling now */
iwl_trans_write_prph(mvm->trans, TXF_CPU2_NUM, i);
iwl_trans_write_prph(mvm->trans, TXF_CPU2_NUM, i +
ARRAY_SIZE(mvm->shared_mem_cfg.txfifo_size));
fifo_hdr->available_bytes =
cpu_to_le32(iwl_trans_read_prph(mvm->trans,