Chipsets since revision AR5213A (0x59) have hardware counters for PHY errors
which we can read directly from the registers. Older hardware has to use the RX
descriptor status to get a count of PHY errors. This will be used in several
places in the ANI implementation, so a flag is useful.
Signed-off-by: Bruno Randolf <br1@xxxxxxxxxxx>
---
drivers/net/wireless/ath/ath5k/ath5k.h | 2 ++
drivers/net/wireless/ath/ath5k/caps.c | 6 ++++++
2 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/drivers/net/wireless/ath/ath5k/ath5k.h b/drivers/net/wireless/ath/ath5k/ath5k.h
index ec62690..f578c1e 100644
--- a/drivers/net/wireless/ath/ath5k/ath5k.h
+++ b/drivers/net/wireless/ath/ath5k/ath5k.h
@@ -982,6 +982,8 @@ struct ath5k_capabilities {
struct {
u8 q_tx_num;
} cap_queues;
+
+ bool cap_has_phyerr_counters;
};
/* size of noise floor history (keep it a power of two) */
diff --git a/drivers/net/wireless/ath/ath5k/caps.c b/drivers/net/wireless/ath/ath5k/caps.c
index e618e71..74f0071 100644
--- a/drivers/net/wireless/ath/ath5k/caps.c
+++ b/drivers/net/wireless/ath/ath5k/caps.c
@@ -109,6 +109,12 @@ int ath5k_hw_set_capabilities(struct ath5k_hw *ah)
else
ah->ah_capabilities.cap_queues.q_tx_num = AR5K_NUM_TX_QUEUES;
+ /* newer hardware has PHY error counters */
+ if (ah->ah_mac_srev >= AR5K_SREV_AR5213A)
+ ah->ah_capabilities.cap_has_phyerr_counters = true;
+ else
+ ah->ah_capabilities.cap_has_phyerr_counters = false;
+
return 0;
}
--
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