diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2021-06-17 11:07:28 +0300 |
|---|---|---|
| committer | Luca Coelho <luciano.coelho@intel.com> | 2021-06-22 16:57:55 +0300 |
| commit | 8e08e191fc932b4fc2de014c358f8946a4af57e1 (patch) | |
| tree | 8b1be0d1e868b5143e922ad140026be046821e73 /drivers/net/wireless/intel/iwlwifi/fw | |
| parent | bef99c7d9177b268eb08b959eed28797eff6bdae (diff) | |
iwlwifi: pcie: remove TR/CR tail allocations
The TR/CR tail data are meant to be per-queue-arrays, however,
we allocate them completely wrong (we have a separate allocation
per queue).
Looking at this more closely, it turns out that the hardware
never uses these - we have a separate free list per RX queue
and maintain a write pointer for that in a register, and the
RX itself is indicated in the RB status (rb_stts) DMA region.
Despite nothing using the tail pointers, the hardware will
unconditionally access them to write updates, even when we aren't
using CRs/TRs.
Give it dummy values that we never use/update so it can do that
without causing trouble.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210617110647.5f5764e04c46.I4d5de1929be048085767f1234a1e07b517ab6a2d@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/fw')
0 files changed, 0 insertions, 0 deletions