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sfc: Implement efx_nic_type::filter_clear_rx operation for EF10 

The operation can now fail, so change its return type to int.

Remove the inline wrapper while we're changing the signature.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
This commit is contained in:
Ben Hutchings 2013-11-21 19:15:03 +00:00
parent f72848021d
commit fbd791202b
6 changed files with 32 additions and 28 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
drivers/net/ethernet/sfc/ef10.c
View File

@ -2519,7 +2519,7 @@ static void efx_ef10_filter_update_rx_scatter(struct efx_nic *efx)
* Filter ID may come from userland and must be range-checked.
*/
static int efx_ef10_filter_remove_internal(struct efx_nic *efx,
enum efx_filter_priority priority,
unsigned int priority_mask,
u32 filter_id, bool by_index)
{
unsigned int filter_idx = filter_id % HUNT_FILTER_TBL_ROWS;
@ -2555,7 +2555,7 @@ static int efx_ef10_filter_remove_internal(struct efx_nic *efx,
}
if (spec->flags & EFX_FILTER_FLAG_RX_OVER_AUTO &&
priority == EFX_FILTER_PRI_AUTO) {
priority_mask == (1U << EFX_FILTER_PRI_AUTO)) {
/* Just remove flags */
spec->flags &= ~EFX_FILTER_FLAG_RX_OVER_AUTO;
table->entry[filter_idx].spec &= ~EFX_EF10_FILTER_FLAG_AUTO_OLD;
@ -2563,7 +2563,7 @@ static int efx_ef10_filter_remove_internal(struct efx_nic *efx,
goto out_unlock;
}
if (spec->priority != priority) {
if (!(priority_mask & (1U << spec->priority))) {
rc = -ENOENT;
goto out_unlock;
}
@ -2619,7 +2619,8 @@ static int efx_ef10_filter_remove_safe(struct efx_nic *efx,
enum efx_filter_priority priority,
u32 filter_id)
{
return efx_ef10_filter_remove_internal(efx, priority, filter_id, false);
return efx_ef10_filter_remove_internal(efx, 1U << priority,
filter_id, false);
}
static int efx_ef10_filter_get_safe(struct efx_nic *efx,
@ -2645,10 +2646,24 @@ static int efx_ef10_filter_get_safe(struct efx_nic *efx,
return rc;
}
static void efx_ef10_filter_clear_rx(struct efx_nic *efx,
static int efx_ef10_filter_clear_rx(struct efx_nic *efx,
enum efx_filter_priority priority)
{
/* TODO */
unsigned int priority_mask;
unsigned int i;
int rc;
priority_mask = (((1U << (priority + 1)) - 1) &
~(1U << EFX_FILTER_PRI_AUTO));
for (i = 0; i < HUNT_FILTER_TBL_ROWS; i++) {
rc = efx_ef10_filter_remove_internal(efx, priority_mask,
i, true);
if (rc && rc != -ENOENT)
return rc;
}
return 0;
}
static u32 efx_ef10_filter_count_rx_used(struct efx_nic *efx,
@ -3210,7 +3225,8 @@ static void efx_ef10_filter_sync_rx_mode(struct efx_nic *efx)
if (ACCESS_ONCE(table->entry[i].spec) &
EFX_EF10_FILTER_FLAG_AUTO_OLD) {
if (efx_ef10_filter_remove_internal(
efx, EFX_FILTER_PRI_AUTO, i, true) < 0)
efx, 1U << EFX_FILTER_PRI_AUTO,
i, true) < 0)
remove_failed = true;
}
}

2
drivers/net/ethernet/sfc/efx.c
View File

@ -2151,7 +2151,7 @@ static int efx_set_features(struct net_device *net_dev, netdev_features_t data)
/* If disabling RX n-tuple filtering, clear existing filters */
if (net_dev->features & ~data & NETIF_F_NTUPLE)
efx_filter_clear_rx(efx, EFX_FILTER_PRI_MANUAL);
return efx->type->filter_clear_rx(efx, EFX_FILTER_PRI_MANUAL);
return 0;
}

14
drivers/net/ethernet/sfc/efx.h
View File

@ -134,20 +134,6 @@ efx_filter_get_filter_safe(struct efx_nic *efx,
return efx->type->filter_get_safe(efx, priority, filter_id, spec);
}
/**
* efx_farch_filter_clear_rx - remove RX filters by priority
* @efx: NIC from which to remove the filters
* @priority: Maximum priority to remove
*
* Remove all RX filters whose priority is less than or equal to the
* given @priority and is not %EFX_FILTER_PRI_AUTO.
*/
static inline void efx_filter_clear_rx(struct efx_nic *efx,
enum efx_filter_priority priority)
{
return efx->type->filter_clear_rx(efx, priority);
}
static inline u32 efx_filter_count_rx_used(struct efx_nic *efx,
enum efx_filter_priority priority)
{

3
drivers/net/ethernet/sfc/farch.c
View File

@ -2638,7 +2638,7 @@ efx_farch_filter_table_clear(struct efx_nic *efx,
spin_unlock_bh(&efx->filter_lock);
}
void efx_farch_filter_clear_rx(struct efx_nic *efx,
int efx_farch_filter_clear_rx(struct efx_nic *efx,
enum efx_filter_priority priority)
{
efx_farch_filter_table_clear(efx, EFX_FARCH_FILTER_TABLE_RX_IP,
@ -2647,6 +2647,7 @@ void efx_farch_filter_clear_rx(struct efx_nic *efx,
priority);
efx_farch_filter_table_clear(efx, EFX_FARCH_FILTER_TABLE_RX_DEF,
priority);
return 0;
}
u32 efx_farch_filter_count_rx_used(struct efx_nic *efx,

7
drivers/net/ethernet/sfc/net_driver.h
View File

@ -1044,7 +1044,8 @@ struct efx_mtd_partition {
* @filter_insert: add or replace a filter
* @filter_remove_safe: remove a filter by ID, carefully
* @filter_get_safe: retrieve a filter by ID, carefully
* @filter_clear_rx: remove RX filters by priority
* @filter_clear_rx: Remove all RX filters whose priority is less than or
* equal to the given priority and is not %EFX_FILTER_PRI_AUTO
* @filter_count_rx_used: Get the number of filters in use at a given priority
* @filter_get_rx_id_limit: Get maximum value of a filter id, plus 1
* @filter_get_rx_ids: Get list of RX filters at a given priority
@ -1166,8 +1167,8 @@ struct efx_nic_type {
int (*filter_get_safe)(struct efx_nic *efx,
enum efx_filter_priority priority,
u32 filter_id, struct efx_filter_spec *);
void (*filter_clear_rx)(struct efx_nic *efx,
enum efx_filter_priority priority);
int (*filter_clear_rx)(struct efx_nic *efx,
enum efx_filter_priority priority);
u32 (*filter_count_rx_used)(struct efx_nic *efx,
enum efx_filter_priority priority);
u32 (*filter_get_rx_id_limit)(struct efx_nic *efx);

4
drivers/net/ethernet/sfc/nic.h
View File

@ -693,8 +693,8 @@ int efx_farch_filter_remove_safe(struct efx_nic *efx,
int efx_farch_filter_get_safe(struct efx_nic *efx,
enum efx_filter_priority priority, u32 filter_id,
struct efx_filter_spec *);
void efx_farch_filter_clear_rx(struct efx_nic *efx,
enum efx_filter_priority priority);
int efx_farch_filter_clear_rx(struct efx_nic *efx,
enum efx_filter_priority priority);
u32 efx_farch_filter_count_rx_used(struct efx_nic *efx,
enum efx_filter_priority priority);
u32 efx_farch_filter_get_rx_id_limit(struct efx_nic *efx);