diff options
Diffstat (limited to 'drivers/net/sfc/falcon.c')
| -rw-r--r-- | drivers/net/sfc/falcon.c | 51 |
1 files changed, 48 insertions, 3 deletions
diff --git a/drivers/net/sfc/falcon.c b/drivers/net/sfc/falcon.c index 60176e873d6..94bf4aaf984 100644 --- a/drivers/net/sfc/falcon.c +++ b/drivers/net/sfc/falcon.c @@ -536,7 +536,7 @@ void falcon_reconfigure_mac_wrapper(struct efx_nic *efx) efx_oword_t reg; int link_speed, isolate; - isolate = (efx->reset_pending != RESET_TYPE_NONE); + isolate = !!ACCESS_ONCE(efx->reset_pending); switch (link_state->speed) { case 10000: link_speed = 3; break; @@ -1051,6 +1051,49 @@ static int falcon_b0_test_registers(struct efx_nic *efx) ************************************************************************** */ +static enum reset_type falcon_map_reset_reason(enum reset_type reason) +{ + switch (reason) { + case RESET_TYPE_RX_RECOVERY: + case RESET_TYPE_RX_DESC_FETCH: + case RESET_TYPE_TX_DESC_FETCH: + case RESET_TYPE_TX_SKIP: + /* These can occasionally occur due to hardware bugs. + * We try to reset without disrupting the link. + */ + return RESET_TYPE_INVISIBLE; + default: + return RESET_TYPE_ALL; + } +} + +static int falcon_map_reset_flags(u32 *flags) +{ + enum { + FALCON_RESET_INVISIBLE = (ETH_RESET_DMA | ETH_RESET_FILTER | + ETH_RESET_OFFLOAD | ETH_RESET_MAC), + FALCON_RESET_ALL = FALCON_RESET_INVISIBLE | ETH_RESET_PHY, + FALCON_RESET_WORLD = FALCON_RESET_ALL | ETH_RESET_IRQ, + }; + + if ((*flags & FALCON_RESET_WORLD) == FALCON_RESET_WORLD) { + *flags &= ~FALCON_RESET_WORLD; + return RESET_TYPE_WORLD; + } + + if ((*flags & FALCON_RESET_ALL) == FALCON_RESET_ALL) { + *flags &= ~FALCON_RESET_ALL; + return RESET_TYPE_ALL; + } + + if ((*flags & FALCON_RESET_INVISIBLE) == FALCON_RESET_INVISIBLE) { + *flags &= ~FALCON_RESET_INVISIBLE; + return RESET_TYPE_INVISIBLE; + } + + return -EINVAL; +} + /* Resets NIC to known state. This routine must be called in process * context and is allowed to sleep. */ static int __falcon_reset_hw(struct efx_nic *efx, enum reset_type method) @@ -1709,6 +1752,8 @@ const struct efx_nic_type falcon_a1_nic_type = { .init = falcon_init_nic, .fini = efx_port_dummy_op_void, .monitor = falcon_monitor, + .map_reset_reason = falcon_map_reset_reason, + .map_reset_flags = falcon_map_reset_flags, .reset = falcon_reset_hw, .probe_port = falcon_probe_port, .remove_port = falcon_remove_port, @@ -1741,7 +1786,6 @@ const struct efx_nic_type falcon_a1_nic_type = { .tx_dc_base = 0x130000, .rx_dc_base = 0x100000, .offload_features = NETIF_F_IP_CSUM, - .reset_world_flags = ETH_RESET_IRQ, }; const struct efx_nic_type falcon_b0_nic_type = { @@ -1750,6 +1794,8 @@ const struct efx_nic_type falcon_b0_nic_type = { .init = falcon_init_nic, .fini = efx_port_dummy_op_void, .monitor = falcon_monitor, + .map_reset_reason = falcon_map_reset_reason, + .map_reset_flags = falcon_map_reset_flags, .reset = falcon_reset_hw, .probe_port = falcon_probe_port, .remove_port = falcon_remove_port, @@ -1791,6 +1837,5 @@ const struct efx_nic_type falcon_b0_nic_type = { .tx_dc_base = 0x130000, .rx_dc_base = 0x100000, .offload_features = NETIF_F_IP_CSUM | NETIF_F_RXHASH | NETIF_F_NTUPLE, - .reset_world_flags = ETH_RESET_IRQ, }; |