diff options
| author | Arend Van Spriel <arend.vanspriel@broadcom.com> | 2017-06-22 13:01:03 +0300 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2017-06-28 20:53:06 +0300 |
| commit | 270a6c1f65fe68a28a5d39cd405592c550b496c7 (patch) | |
| tree | 1cb8c4283d5bf855d1a514e91768f63449eb8221 /drivers/net/wireless/broadcom/brcm80211/brcmfmac/bus.h | |
| parent | a833f3d4de53921263f6a060dbff08d5af926ba7 (diff) | |
| download | linux-270a6c1f65fe68a28a5d39cd405592c550b496c7.tar.xz | |
brcmfmac: rework headroom check in .start_xmit()
Since commit 9cc4b7cb86cb ("brcmfmac: Make skb header writable
before use") the headroom usage has been fixed. However, the
driver was keeping statistics that got lost. So reworking the
code so we get those driver statistics back for debugging.
Cc: James Hughes <james.hughes@raspberrypi.org>
Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/broadcom/brcm80211/brcmfmac/bus.h')
| -rw-r--r-- | drivers/net/wireless/broadcom/brcm80211/brcmfmac/bus.h | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bus.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bus.h index e1a4d9e0eb10..163ddc49f951 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bus.h +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bus.h @@ -113,6 +113,17 @@ struct brcmf_bus_msgbuf { /** + * struct brcmf_bus_stats - bus statistic counters. + * + * @pktcowed: packets cowed for extra headroom/unorphan. + * @pktcow_failed: packets dropped due to failed cow-ing. + */ +struct brcmf_bus_stats { + atomic_t pktcowed; + atomic_t pktcow_failed; +}; + +/** * struct brcmf_bus - interface structure between common and bus layer * * @bus_priv: pointer to private bus device. @@ -120,8 +131,8 @@ struct brcmf_bus_msgbuf { * @dev: device pointer of bus device. * @drvr: public driver information. * @state: operational state of the bus interface. + * @stats: statistics shared between common and bus layer. * @maxctl: maximum size for rxctl request message. - * @tx_realloc: number of tx packets realloced for headroom. * @chip: device identifier of the dongle chip. * @always_use_fws_queue: bus wants use queue also when fwsignal is inactive. * @wowl_supported: is wowl supported by bus driver. @@ -137,8 +148,8 @@ struct brcmf_bus { struct device *dev; struct brcmf_pub *drvr; enum brcmf_bus_state state; + struct brcmf_bus_stats stats; uint maxctl; - atomic_t tx_realloc; u32 chip; u32 chiprev; bool always_use_fws_queue; |