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sfc: Make failed filter removal less noisy 

There are situations - mostly reset related - where our view of the
filter table differs from the hardware. In this case we may try and
remove filters that aren't actually installed. This isn't that
interesting in most situations, so downgrade the logging.

Signed-off-by: Bert Kenward <bkenward@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Bert Kenward 2015-12-23 08:57:36 +00:00 committed by David S. Miller
parent acd43a9097
commit e65a510918
1 changed files with 31 additions and 17 deletions
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48
drivers/net/ethernet/sfc/ef10.c
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@ -3833,13 +3833,12 @@ static void efx_ef10_filter_table_remove(struct efx_nic *efx)
MC_CMD_FILTER_OP_IN_OP_UNSUBSCRIBE);
MCDI_SET_QWORD(inbuf, FILTER_OP_IN_HANDLE,
table->entry[filter_idx].handle);
rc = efx_mcdi_rpc(efx, MC_CMD_FILTER_OP, inbuf, sizeof(inbuf),
NULL, 0, NULL);
rc = efx_mcdi_rpc_quiet(efx, MC_CMD_FILTER_OP, inbuf,
sizeof(inbuf), NULL, 0, NULL);
if (rc)
netdev_WARN(efx->net_dev,
"filter_idx=%#x handle=%#llx\n",
filter_idx,
table->entry[filter_idx].handle);
netif_info(efx, drv, efx->net_dev,
"%s: filter %04x remove failed\n",
__func__, filter_idx);
kfree(spec);
}
@ -3848,11 +3847,14 @@ static void efx_ef10_filter_table_remove(struct efx_nic *efx)
}
#define EFX_EF10_FILTER_DO_MARK_OLD(id) \
if (id != EFX_EF10_FILTER_ID_INVALID) { \
filter_idx = efx_ef10_filter_get_unsafe_id(efx, id); \
WARN_ON(!table->entry[filter_idx].spec); \
table->entry[filter_idx].spec |= EFX_EF10_FILTER_FLAG_AUTO_OLD; \
}
if (id != EFX_EF10_FILTER_ID_INVALID) { \
filter_idx = efx_ef10_filter_get_unsafe_id(efx, id); \
if (!table->entry[filter_idx].spec) \
netif_dbg(efx, drv, efx->net_dev, \
"%s: marked null spec old %04x:%04x\n", \
__func__, id, filter_idx); \
table->entry[filter_idx].spec |= EFX_EF10_FILTER_FLAG_AUTO_OLD;\
}
static void efx_ef10_filter_mark_old(struct efx_nic *efx)
{
struct efx_ef10_filter_table *table = efx->filter_state;
@ -4070,19 +4072,31 @@ static int efx_ef10_filter_insert_def(struct efx_nic *efx, bool multicast,
static void efx_ef10_filter_remove_old(struct efx_nic *efx)
{
struct efx_ef10_filter_table *table = efx->filter_state;
bool remove_failed = false;
int remove_failed = 0;
int remove_noent = 0;
int rc;
int i;
for (i = 0; i < HUNT_FILTER_TBL_ROWS; i++) {
if (ACCESS_ONCE(table->entry[i].spec) &
EFX_EF10_FILTER_FLAG_AUTO_OLD) {
if (efx_ef10_filter_remove_internal(
efx, 1U << EFX_FILTER_PRI_AUTO,
i, true) < 0)
remove_failed = true;
rc = efx_ef10_filter_remove_internal(efx,
1U << EFX_FILTER_PRI_AUTO, i, true);
if (rc == -ENOENT)
remove_noent++;
else if (rc)
remove_failed++;
}
}
WARN_ON(remove_failed);
if (remove_failed)
netif_info(efx, drv, efx->net_dev,
"%s: failed to remove %d filters\n",
__func__, remove_failed);
if (remove_noent)
netif_info(efx, drv, efx->net_dev,
"%s: failed to remove %d non-existent filters\n",
__func__, remove_noent);
}
static int efx_ef10_vport_set_mac_address(struct efx_nic *efx)