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sfc: Make EF10 filter management helper functions VLAN-aware 

It is a step to support VLAN filtering in HW.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Andrew Rybchenko 2016-06-15 17:47:36 +01:00 committed by David S. Miller
parent afa4ce1255
commit b3a3c03c38
1 changed files with 41 additions and 29 deletions
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70
drivers/net/ethernet/sfc/ef10.c
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@ -56,6 +56,7 @@ enum {
/* Per-VLAN filters information */
struct efx_ef10_filter_vlan {
u16 vid;
u16 uc[EFX_EF10_FILTER_DEV_UC_MAX];
u16 mc[EFX_EF10_FILTER_DEV_MC_MAX];
u16 ucdef;
@ -3795,6 +3796,7 @@ static int efx_ef10_filter_table_probe(struct efx_nic *efx)
}
vlan = &table->vlan;
vlan->vid = EFX_FILTER_VID_UNSPEC;
for (i = 0; i < ARRAY_SIZE(vlan->uc); i++)
vlan->uc[i] = EFX_EF10_FILTER_ID_INVALID;
for (i = 0; i < ARRAY_SIZE(vlan->mc); i++)
@ -3929,17 +3931,13 @@ static void efx_ef10_filter_mark_one_old(struct efx_nic *efx, uint16_t *id)
}
}
static void efx_ef10_filter_mark_old(struct efx_nic *efx)
/* Mark old per-VLAN filters that may need to be removed */
static void _efx_ef10_filter_vlan_mark_old(struct efx_nic *efx,
struct efx_ef10_filter_vlan *vlan)
{
struct efx_ef10_filter_table *table = efx->filter_state;
struct efx_ef10_filter_vlan *vlan = &table->vlan;
unsigned int i;
if (!table)
return;
/* Mark old filters that may need to be removed */
spin_lock_bh(&efx->filter_lock);
for (i = 0; i < table->dev_uc_count; i++)
efx_ef10_filter_mark_one_old(efx, &vlan->uc[i]);
for (i = 0; i < table->dev_mc_count; i++)
@ -3947,6 +3945,15 @@ static void efx_ef10_filter_mark_old(struct efx_nic *efx)
efx_ef10_filter_mark_one_old(efx, &vlan->ucdef);
efx_ef10_filter_mark_one_old(efx, &vlan->bcast);
efx_ef10_filter_mark_one_old(efx, &vlan->mcdef);
}
/* Mark old filters that may need to be removed */
static void efx_ef10_filter_mark_old(struct efx_nic *efx)
{
struct efx_ef10_filter_table *table = efx->filter_state;
spin_lock_bh(&efx->filter_lock);
_efx_ef10_filter_vlan_mark_old(efx, &table->vlan);
spin_unlock_bh(&efx->filter_lock);
}
@ -3997,10 +4004,10 @@ static void efx_ef10_filter_mc_addr_list(struct efx_nic *efx)
}
static int efx_ef10_filter_insert_addr_list(struct efx_nic *efx,
bool multicast, bool rollback)
struct efx_ef10_filter_vlan *vlan,
bool multicast, bool rollback)
{
struct efx_ef10_filter_table *table = efx->filter_state;
struct efx_ef10_filter_vlan *vlan = &table->vlan;
struct efx_ef10_dev_addr *addr_list;
enum efx_filter_flags filter_flags;
struct efx_filter_spec spec;
@ -4025,8 +4032,7 @@ static int efx_ef10_filter_insert_addr_list(struct efx_nic *efx,
/* Insert/renew filters */
for (i = 0; i < addr_count; i++) {
efx_filter_init_rx(&spec, EFX_FILTER_PRI_AUTO, filter_flags, 0);
efx_filter_set_eth_local(&spec, EFX_FILTER_VID_UNSPEC,
addr_list[i].addr);
efx_filter_set_eth_local(&spec, vlan->vid, addr_list[i].addr);
rc = efx_ef10_filter_insert(efx, &spec, true);
if (rc < 0) {
if (rollback) {
@ -4055,7 +4061,7 @@ static int efx_ef10_filter_insert_addr_list(struct efx_nic *efx,
/* Also need an Ethernet broadcast filter */
efx_filter_init_rx(&spec, EFX_FILTER_PRI_AUTO, filter_flags, 0);
eth_broadcast_addr(baddr);
efx_filter_set_eth_local(&spec, EFX_FILTER_VID_UNSPEC, baddr);
efx_filter_set_eth_local(&spec, vlan->vid, baddr);
rc = efx_ef10_filter_insert(efx, &spec, true);
if (rc < 0) {
netif_warn(efx, drv, efx->net_dev,
@ -4080,12 +4086,11 @@ static int efx_ef10_filter_insert_addr_list(struct efx_nic *efx,
return 0;
}
static int efx_ef10_filter_insert_def(struct efx_nic *efx, bool multicast,
bool rollback)
static int efx_ef10_filter_insert_def(struct efx_nic *efx,
struct efx_ef10_filter_vlan *vlan,
bool multicast, bool rollback)
{
struct efx_ef10_filter_table *table = efx->filter_state;
struct efx_ef10_nic_data *nic_data = efx->nic_data;
struct efx_ef10_filter_vlan *vlan = &table->vlan;
enum efx_filter_flags filter_flags;
struct efx_filter_spec spec;
u8 baddr[ETH_ALEN];
@ -4100,6 +4105,9 @@ static int efx_ef10_filter_insert_def(struct efx_nic *efx, bool multicast,
else
efx_filter_set_uc_def(&spec);
if (vlan->vid != EFX_FILTER_VID_UNSPEC)
efx_filter_set_eth_local(&spec, vlan->vid, NULL);
rc = efx_ef10_filter_insert(efx, &spec, true);
if (rc < 0) {
netif_printk(efx, drv, rc == -EPERM ? KERN_DEBUG : KERN_WARNING,
@ -4114,8 +4122,7 @@ static int efx_ef10_filter_insert_def(struct efx_nic *efx, bool multicast,
efx_filter_init_rx(&spec, EFX_FILTER_PRI_AUTO,
filter_flags, 0);
eth_broadcast_addr(baddr);
efx_filter_set_eth_local(&spec, EFX_FILTER_VID_UNSPEC,
baddr);
efx_filter_set_eth_local(&spec, vlan->vid, baddr);
rc = efx_ef10_filter_insert(efx, &spec, true);
if (rc < 0) {
netif_warn(efx, drv, efx->net_dev,
@ -4252,6 +4259,7 @@ static void efx_ef10_filter_sync_rx_mode(struct efx_nic *efx)
struct efx_ef10_filter_table *table = efx->filter_state;
struct efx_ef10_nic_data *nic_data = efx->nic_data;
struct net_device *net_dev = efx->net_dev;
struct efx_ef10_filter_vlan *vlan;
if (!efx_dev_registered(efx))
return;
@ -4269,17 +4277,19 @@ static void efx_ef10_filter_sync_rx_mode(struct efx_nic *efx)
efx_ef10_filter_mc_addr_list(efx);
netif_addr_unlock_bh(net_dev);
vlan = &table->vlan;
/* Insert/renew unicast filters */
if (table->uc_promisc) {
efx_ef10_filter_insert_def(efx, false, false);
efx_ef10_filter_insert_addr_list(efx, false, false);
efx_ef10_filter_insert_def(efx, vlan, false, false);
efx_ef10_filter_insert_addr_list(efx, vlan, false, false);
} else {
/* If any of the filters failed to insert, fall back to
* promiscuous mode - add in the uc_def filter. But keep
* our individual unicast filters.
*/
if (efx_ef10_filter_insert_addr_list(efx, false, false))
efx_ef10_filter_insert_def(efx, false, false);
if (efx_ef10_filter_insert_addr_list(efx, vlan, false, false))
efx_ef10_filter_insert_def(efx, vlan, false, false);
}
/* Insert/renew multicast filters */
@ -4294,17 +4304,18 @@ static void efx_ef10_filter_sync_rx_mode(struct efx_nic *efx)
/* If we failed to insert promiscuous filters, rollback
* and fall back to individual multicast filters
*/
if (efx_ef10_filter_insert_def(efx, true, true)) {
if (efx_ef10_filter_insert_def(efx, vlan, true, true)) {
/* Changing promisc state, so remove old filters */
efx_ef10_filter_remove_old(efx);
efx_ef10_filter_insert_addr_list(efx, true, false);
efx_ef10_filter_insert_addr_list(efx, vlan,
true, false);
}
} else {
/* If we failed to insert promiscuous filters, don't
* rollback. Regardless, also insert the mc_list
*/
efx_ef10_filter_insert_def(efx, true, false);
efx_ef10_filter_insert_addr_list(efx, true, false);
efx_ef10_filter_insert_def(efx, vlan, true, false);
efx_ef10_filter_insert_addr_list(efx, vlan, true, false);
}
} else {
/* If any filters failed to insert, rollback and fall back to
@ -4312,12 +4323,13 @@ static void efx_ef10_filter_sync_rx_mode(struct efx_nic *efx)
* that fails, roll back again and insert as many of our
* individual multicast filters as we can.
*/
if (efx_ef10_filter_insert_addr_list(efx, true, true)) {
if (efx_ef10_filter_insert_addr_list(efx, vlan, true, true)) {
/* Changing promisc state, so remove old filters */
if (nic_data->workaround_26807)
efx_ef10_filter_remove_old(efx);
if (efx_ef10_filter_insert_def(efx, true, true))
efx_ef10_filter_insert_addr_list(efx, true, false);
if (efx_ef10_filter_insert_def(efx, vlan, true, true))
efx_ef10_filter_insert_addr_list(efx, vlan,
true, false);
}
}