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Merge branch 'sfc-misc-fixes' 

Edward Cree says:

====================
sfc: misc. fixes

Three largely unrelated fixes to increase robustness in rare edge cases.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2017-02-17 15:29:40 -05:00
Родитель fbdf0e28d0 9c568fd884
Коммит e606519ec3
5 изменённых файлов: 57 добавлений и 32 удалений
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67
drivers/net/ethernet/sfc/ef10.c
Просмотреть файл

@ -134,6 +134,22 @@ static void efx_ef10_filter_del_vlan_internal(struct efx_nic *efx,
static void efx_ef10_filter_del_vlan(struct efx_nic *efx, u16 vid);
static int efx_ef10_set_udp_tnl_ports(struct efx_nic *efx, bool unloading);
static u32 efx_ef10_filter_get_unsafe_id(u32 filter_id)
{
WARN_ON_ONCE(filter_id == EFX_EF10_FILTER_ID_INVALID);
return filter_id & (HUNT_FILTER_TBL_ROWS - 1);
}
static unsigned int efx_ef10_filter_get_unsafe_pri(u32 filter_id)
{
return filter_id / (HUNT_FILTER_TBL_ROWS * 2);
}
static u32 efx_ef10_make_filter_id(unsigned int pri, u16 idx)
{
return pri * HUNT_FILTER_TBL_ROWS * 2 + idx;
}
static int efx_ef10_get_warm_boot_count(struct efx_nic *efx)
{
efx_dword_t reg;
@ -4194,7 +4210,7 @@ found:
/* If successful, return the inserted filter ID */
if (rc == 0)
rc = match_pri * HUNT_FILTER_TBL_ROWS + ins_index;
rc = efx_ef10_make_filter_id(match_pri, ins_index);
wake_up_all(&table->waitq);
out_unlock:
@ -4217,7 +4233,7 @@ static int efx_ef10_filter_remove_internal(struct efx_nic *efx,
unsigned int priority_mask,
u32 filter_id, bool by_index)
{
unsigned int filter_idx = filter_id % HUNT_FILTER_TBL_ROWS;
unsigned int filter_idx = efx_ef10_filter_get_unsafe_id(filter_id);
struct efx_ef10_filter_table *table = efx->filter_state;
MCDI_DECLARE_BUF(inbuf,
MC_CMD_FILTER_OP_IN_HANDLE_OFST +
@ -4244,7 +4260,7 @@ static int efx_ef10_filter_remove_internal(struct efx_nic *efx,
if (!spec ||
(!by_index &&
efx_ef10_filter_pri(table, spec) !=
filter_id / HUNT_FILTER_TBL_ROWS)) {
efx_ef10_filter_get_unsafe_pri(filter_id))) {
rc = -ENOENT;
goto out_unlock;
}
@ -4293,13 +4309,18 @@ static int efx_ef10_filter_remove_internal(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);
spin_lock_bh(&efx->filter_lock);
if (rc == 0) {
if ((rc == 0) || (rc == -ENOENT)) {
/* Filter removed OK or didn't actually exist */
kfree(spec);
efx_ef10_filter_set_entry(table, filter_idx, NULL, 0);
} else {
efx_mcdi_display_error(efx, MC_CMD_FILTER_OP,
MC_CMD_FILTER_OP_IN_LEN,
NULL, 0, rc);
}
}
@ -4319,11 +4340,6 @@ static int efx_ef10_filter_remove_safe(struct efx_nic *efx,
filter_id, false);
}
static u32 efx_ef10_filter_get_unsafe_id(struct efx_nic *efx, u32 filter_id)
{
return filter_id % HUNT_FILTER_TBL_ROWS;
}
static void efx_ef10_filter_remove_unsafe(struct efx_nic *efx,
enum efx_filter_priority priority,
u32 filter_id)
@ -4337,7 +4353,7 @@ static int efx_ef10_filter_get_safe(struct efx_nic *efx,
enum efx_filter_priority priority,
u32 filter_id, struct efx_filter_spec *spec)
{
unsigned int filter_idx = filter_id % HUNT_FILTER_TBL_ROWS;
unsigned int filter_idx = efx_ef10_filter_get_unsafe_id(filter_id);
struct efx_ef10_filter_table *table = efx->filter_state;
const struct efx_filter_spec *saved_spec;
int rc;
@ -4346,7 +4362,7 @@ static int efx_ef10_filter_get_safe(struct efx_nic *efx,
saved_spec = efx_ef10_filter_entry_spec(table, filter_idx);
if (saved_spec && saved_spec->priority == priority &&
efx_ef10_filter_pri(table, saved_spec) ==
filter_id / HUNT_FILTER_TBL_ROWS) {
efx_ef10_filter_get_unsafe_pri(filter_id)) {
*spec = *saved_spec;
rc = 0;
} else {
@ -4398,7 +4414,7 @@ static u32 efx_ef10_filter_get_rx_id_limit(struct efx_nic *efx)
{
struct efx_ef10_filter_table *table = efx->filter_state;
return table->rx_match_count * HUNT_FILTER_TBL_ROWS;
return table->rx_match_count * HUNT_FILTER_TBL_ROWS * 2;
}
static s32 efx_ef10_filter_get_rx_ids(struct efx_nic *efx,
@ -4418,8 +4434,9 @@ static s32 efx_ef10_filter_get_rx_ids(struct efx_nic *efx,
count = -EMSGSIZE;
break;
}
buf[count++] = (efx_ef10_filter_pri(table, spec) *
HUNT_FILTER_TBL_ROWS +
buf[count++] =
efx_ef10_make_filter_id(
efx_ef10_filter_pri(table, spec),
filter_idx);
}
}
@ -4971,7 +4988,7 @@ static void efx_ef10_filter_mark_one_old(struct efx_nic *efx, uint16_t *id)
unsigned int filter_idx;
if (*id != EFX_EF10_FILTER_ID_INVALID) {
filter_idx = efx_ef10_filter_get_unsafe_id(efx, *id);
filter_idx = efx_ef10_filter_get_unsafe_id(*id);
if (!table->entry[filter_idx].spec)
netif_dbg(efx, drv, efx->net_dev,
"marked null spec old %04x:%04x\n", *id,
@ -5106,7 +5123,7 @@ static int efx_ef10_filter_insert_addr_list(struct efx_nic *efx,
rc = EFX_EF10_FILTER_ID_INVALID;
}
}
ids[i] = efx_ef10_filter_get_unsafe_id(efx, rc);
ids[i] = efx_ef10_filter_get_unsafe_id(rc);
}
if (multicast && rollback) {
@ -5130,7 +5147,7 @@ static int efx_ef10_filter_insert_addr_list(struct efx_nic *efx,
return rc;
} else {
vlan->default_filters[EFX_EF10_BCAST] =
efx_ef10_filter_get_unsafe_id(efx, rc);
efx_ef10_filter_get_unsafe_id(rc);
}
}
@ -5225,7 +5242,7 @@ static int efx_ef10_filter_insert_def(struct efx_nic *efx,
id = &vlan->default_filters[map[encap_type]];
EFX_WARN_ON_PARANOID(*id != EFX_EF10_FILTER_ID_INVALID);
*id = efx_ef10_filter_get_unsafe_id(efx, rc);
*id = efx_ef10_filter_get_unsafe_id(rc);
if (!nic_data->workaround_26807 && !encap_type) {
/* Also need an Ethernet broadcast filter */
efx_filter_init_rx(&spec, EFX_FILTER_PRI_AUTO,
@ -5250,7 +5267,7 @@ static int efx_ef10_filter_insert_def(struct efx_nic *efx,
vlan->default_filters[EFX_EF10_BCAST] !=
EFX_EF10_FILTER_ID_INVALID);
vlan->default_filters[EFX_EF10_BCAST] =
efx_ef10_filter_get_unsafe_id(efx, rc);
efx_ef10_filter_get_unsafe_id(rc);
}
}
rc = 0;
@ -5372,7 +5389,7 @@ restore_filters:
if (rc2)
goto reset_nic;
netif_device_attach(efx->net_dev);
efx_device_attach_if_not_resetting(efx);
return rc;
@ -5658,7 +5675,7 @@ static int efx_ef10_set_mac_address(struct efx_nic *efx)
if (was_enabled)
efx_net_open(efx->net_dev);
netif_device_attach(efx->net_dev);
efx_device_attach_if_not_resetting(efx);
#ifdef CONFIG_SFC_SRIOV
if (efx->pci_dev->is_virtfn && efx->pci_dev->physfn) {
@ -6110,7 +6127,7 @@ static int efx_ef10_set_udp_tnl_ports(struct efx_nic *efx, bool unloading)
if (!(nic_data->datapath_caps &
(1 << MC_CMD_GET_CAPABILITIES_OUT_VXLAN_NVGRE_LBN))) {
netif_device_attach(efx->net_dev);
efx_device_attach_if_not_resetting(efx);
return 0;
}
@ -6182,7 +6199,7 @@ static int efx_ef10_set_udp_tnl_ports(struct efx_nic *efx, bool unloading)
* trigger a re-attach. Since there won't be an MC reset, we
* have to do the attach ourselves.
*/
netif_device_attach(efx->net_dev);
efx_device_attach_if_not_resetting(efx);
}
return rc;

4
drivers/net/ethernet/sfc/ef10_sriov.c
Просмотреть файл

@ -549,7 +549,7 @@ int efx_ef10_sriov_set_vf_mac(struct efx_nic *efx, int vf_i, u8 *mac)
vf->efx->type->filter_table_probe(vf->efx);
up_write(&vf->efx->filter_sem);
efx_net_open(vf->efx->net_dev);
netif_device_attach(vf->efx->net_dev);
efx_device_attach_if_not_resetting(vf->efx);
}
return 0;
@ -667,7 +667,7 @@ restore_filters:
if (rc2)
goto reset_nic;
netif_device_attach(vf->efx->net_dev);
efx_device_attach_if_not_resetting(vf->efx);
}
return rc;

10
drivers/net/ethernet/sfc/efx.c
Просмотреть файл

@ -876,7 +876,7 @@ out:
efx_schedule_reset(efx, RESET_TYPE_DISABLE);
} else {
efx_start_all(efx);
netif_device_attach(efx->net_dev);
efx_device_attach_if_not_resetting(efx);
}
return rc;
@ -2182,6 +2182,8 @@ int efx_net_open(struct net_device *net_dev)
efx_link_status_changed(efx);
efx_start_all(efx);
if (efx->state == STATE_DISABLED || efx->reset_pending)
netif_device_detach(efx->net_dev);
efx_selftest_async_start(efx);
return 0;
}
@ -2248,7 +2250,7 @@ static int efx_change_mtu(struct net_device *net_dev, int new_mtu)
mutex_unlock(&efx->mac_lock);
efx_start_all(efx);
netif_device_attach(efx->net_dev);
efx_device_attach_if_not_resetting(efx);
return 0;
}
@ -2744,7 +2746,7 @@ out:
efx->state = STATE_DISABLED;
} else {
netif_dbg(efx, drv, efx->net_dev, "reset complete\n");
netif_device_attach(efx->net_dev);
efx_device_attach_if_not_resetting(efx);
}
return rc;
}
@ -3417,7 +3419,7 @@ static int efx_pm_thaw(struct device *dev)
efx_start_all(efx);
netif_device_attach(efx->net_dev);
efx_device_attach_if_not_resetting(efx);
efx->state = STATE_READY;

6
drivers/net/ethernet/sfc/efx.h
Просмотреть файл

@ -276,6 +276,12 @@ static inline void efx_device_detach_sync(struct efx_nic *efx)
netif_tx_unlock_bh(dev);
}
static inline void efx_device_attach_if_not_resetting(struct efx_nic *efx)
{
if ((efx->state != STATE_DISABLED) && !efx->reset_pending)
netif_device_attach(efx->net_dev);
}
static inline bool efx_rwsem_assert_write_locked(struct rw_semaphore *sem)
{
if (WARN_ON(down_read_trylock(sem))) {

2
drivers/net/ethernet/sfc/selftest.c
Просмотреть файл

@ -768,7 +768,7 @@ int efx_selftest(struct efx_nic *efx, struct efx_self_tests *tests,
__efx_reconfigure_port(efx);
mutex_unlock(&efx->mac_lock);
netif_device_attach(efx->net_dev);
efx_device_attach_if_not_resetting(efx);
return rc_test;
}