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authorBen Hutchings <bhutchings@solarflare.com>2009-01-29 18:00:07 +0000
committerDavid S. Miller <davem@davemloft.net>2009-01-30 14:06:33 -0800
commit1974cc205e63cec4a17a6b3fca31fa4240ded77e (patch)
treed658cbc56064d86f3f57e786b4ebcf33346188bd /drivers/net/sfc/tenxpress.c
parentaf4ad9bca0c4039355b20d760b4fd39afa48c59d (diff)
sfc: Replace stats_enabled flag with a disable count
Currently we use a spin-lock to serialise statistics fetches and also to inhibit them for short periods of time, plus a flag to enable/disable statistics fetches for longer periods of time, during online reset. This was apparently insufficient to deal with the several reasons for stats being disabled. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/sfc/tenxpress.c')
-rw-r--r--drivers/net/sfc/tenxpress.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/net/sfc/tenxpress.c b/drivers/net/sfc/tenxpress.c
index 412d209d8313..f0efd246962c 100644
--- a/drivers/net/sfc/tenxpress.c
+++ b/drivers/net/sfc/tenxpress.c
@@ -370,8 +370,8 @@ static int tenxpress_special_reset(struct efx_nic *efx)
/* The XGMAC clock is driven from the SFC7101/SFT9001 312MHz clock, so
* a special software reset can glitch the XGMAC sufficiently for stats
- * requests to fail. Since we don't often special_reset, just lock. */
- spin_lock(&efx->stats_lock);
+ * requests to fail. */
+ efx_stats_disable(efx);
/* Initiate reset */
reg = mdio_clause45_read(efx, efx->mii.phy_id,
@@ -386,17 +386,17 @@ static int tenxpress_special_reset(struct efx_nic *efx)
rc = mdio_clause45_wait_reset_mmds(efx,
TENXPRESS_REQUIRED_DEVS);
if (rc < 0)
- goto unlock;
+ goto out;
/* Try and reconfigure the device */
rc = tenxpress_init(efx);
if (rc < 0)
- goto unlock;
+ goto out;
/* Wait for the XGXS state machine to churn */
mdelay(10);
-unlock:
- spin_unlock(&efx->stats_lock);
+out:
+ efx_stats_enable(efx);
return rc;
}