diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/sfc/efx.c | 5 | ||||
| -rw-r--r-- | drivers/net/sfc/falcon.c | 7 | ||||
| -rw-r--r-- | drivers/net/sfc/falcon.h | 2 | ||||
| -rw-r--r-- | drivers/net/sfc/falcon_boards.c | 4 | ||||
| -rw-r--r-- | drivers/net/sfc/falcon_gmac.c | 8 | ||||
| -rw-r--r-- | drivers/net/sfc/falcon_xmac.c | 50 | ||||
| -rw-r--r-- | drivers/net/sfc/net_driver.h | 10 | ||||
| -rw-r--r-- | drivers/net/sfc/selftest.c | 9 |
8 files changed, 41 insertions, 54 deletions
diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c index d17cea9f4e88..15616dd9ed41 100644 --- a/drivers/net/sfc/efx.c +++ b/drivers/net/sfc/efx.c @@ -693,8 +693,6 @@ static void efx_mac_work(struct work_struct *data) struct efx_nic *efx = container_of(data, struct efx_nic, mac_work); mutex_lock(&efx->mac_lock); - if (efx->port_enabled) - efx->mac_op->irq(efx); mutex_unlock(&efx->mac_lock); } @@ -774,7 +772,6 @@ static void efx_start_port(struct efx_nic *efx) mutex_lock(&efx->mac_lock); efx->port_enabled = true; __efx_reconfigure_port(efx); - efx->mac_op->irq(efx); mutex_unlock(&efx->mac_lock); } @@ -1903,8 +1900,6 @@ void efx_port_dummy_op_set_id_led(struct efx_nic *efx, enum efx_led_mode mode) static struct efx_mac_operations efx_dummy_mac_operations = { .reconfigure = efx_port_dummy_op_void, - .poll = efx_port_dummy_op_void, - .irq = efx_port_dummy_op_void, }; static struct efx_phy_operations efx_dummy_phy_operations = { diff --git a/drivers/net/sfc/falcon.c b/drivers/net/sfc/falcon.c index c43c5e6f077b..fac534a274c8 100644 --- a/drivers/net/sfc/falcon.c +++ b/drivers/net/sfc/falcon.c @@ -900,7 +900,7 @@ static void falcon_handle_global_event(struct efx_channel *channel, if ((falcon_rev(efx) >= FALCON_REV_B0) && EFX_QWORD_FIELD(*event, FSF_BB_GLB_EV_XG_MGT_INTR)) { - queue_work(efx->workqueue, &efx->mac_work); + efx->xmac_poll_required = true; handled = true; } @@ -2251,7 +2251,7 @@ int falcon_switch_mac(struct efx_nic *efx) EFX_LOG(efx, "selected %cMAC\n", EFX_IS10G(efx) ? 'X' : 'G'); /* Not all macs support a mac-level link state */ - efx->mac_up = true; + efx->xmac_poll_required = false; rc = falcon_reset_macs(efx); out: @@ -2624,7 +2624,8 @@ void falcon_monitor(struct efx_nic *efx) falcon_sim_phy_event(efx); } efx->phy_op->poll(efx); - efx->mac_op->poll(efx); + if (EFX_IS10G(efx)) + falcon_poll_xmac(efx); } /* Zeroes out the SRAM contents. This routine must be called in diff --git a/drivers/net/sfc/falcon.h b/drivers/net/sfc/falcon.h index 05e51c2a6d8a..9ae1b6c8474e 100644 --- a/drivers/net/sfc/falcon.h +++ b/drivers/net/sfc/falcon.h @@ -209,4 +209,6 @@ extern int falcon_test_registers(struct efx_nic *efx); extern void falcon_generate_event(struct efx_channel *channel, efx_qword_t *event); +extern void falcon_poll_xmac(struct efx_nic *efx); + #endif /* EFX_FALCON_H */ diff --git a/drivers/net/sfc/falcon_boards.c b/drivers/net/sfc/falcon_boards.c index 72d1c7834e6b..da750959c61a 100644 --- a/drivers/net/sfc/falcon_boards.c +++ b/drivers/net/sfc/falcon_boards.c @@ -380,7 +380,7 @@ static int sfe4001_check_hw(struct efx_nic *efx) s32 status; /* If XAUI link is up then do not monitor */ - if (EFX_WORKAROUND_7884(efx) && efx->mac_up) + if (EFX_WORKAROUND_7884(efx) && !efx->xmac_poll_required) return 0; /* Check the powered status of the PHY. Lack of power implies that @@ -468,7 +468,7 @@ static int sfn4111t_check_hw(struct efx_nic *efx) s32 status; /* If XAUI link is up then do not monitor */ - if (EFX_WORKAROUND_7884(efx) && efx->mac_up) + if (EFX_WORKAROUND_7884(efx) && !efx->xmac_poll_required) return 0; /* Test LHIGH, RHIGH, FAULT, EOT and IOT alarms */ diff --git a/drivers/net/sfc/falcon_gmac.c b/drivers/net/sfc/falcon_gmac.c index 2aeb3fc02786..66d499cc23f2 100644 --- a/drivers/net/sfc/falcon_gmac.c +++ b/drivers/net/sfc/falcon_gmac.c @@ -216,9 +216,13 @@ static void falcon_update_stats_gmac(struct efx_nic *efx) mac_stats->rx_lt64 = mac_stats->rx_good_lt64 + mac_stats->rx_bad_lt64; } +static bool falcon_gmac_check_fault(struct efx_nic *efx) +{ + return false; +} + struct efx_mac_operations falcon_gmac_operations = { .reconfigure = falcon_reconfigure_gmac, .update_stats = falcon_update_stats_gmac, - .irq = efx_port_dummy_op_void, - .poll = efx_port_dummy_op_void, + .check_fault = falcon_gmac_check_fault, }; diff --git a/drivers/net/sfc/falcon_xmac.c b/drivers/net/sfc/falcon_xmac.c index e57545de60ff..784260f63d4c 100644 --- a/drivers/net/sfc/falcon_xmac.c +++ b/drivers/net/sfc/falcon_xmac.c @@ -98,7 +98,7 @@ static void falcon_mask_status_intr(struct efx_nic *efx, bool enable) /* We can only use this interrupt to signal the negative edge of * xaui_align [we have to poll the positive edge]. */ - if (!efx->mac_up) + if (efx->xmac_poll_required) return; /* Flush the ISR */ @@ -243,29 +243,35 @@ static void falcon_reconfigure_xgxs_core(struct efx_nic *efx) } -/* Try and bring the Falcon side of the Falcon-Phy XAUI link fails - * to come back up. Bash it until it comes back up */ -static void falcon_check_xaui_link_up(struct efx_nic *efx, int tries) +/* Try to bring up the Falcon side of the Falcon-Phy XAUI link */ +static bool falcon_check_xaui_link_up(struct efx_nic *efx, int tries) { - efx->mac_up = falcon_xaui_link_ok(efx); + bool mac_up = falcon_xaui_link_ok(efx); if ((efx->loopback_mode == LOOPBACK_NETWORK) || efx_phy_mode_disabled(efx->phy_mode)) /* XAUI link is expected to be down */ - return; + return mac_up; falcon_stop_nic_stats(efx); - while (!efx->mac_up && tries) { + while (!mac_up && tries) { EFX_LOG(efx, "bashing xaui\n"); falcon_reset_xaui(efx); udelay(200); - efx->mac_up = falcon_xaui_link_ok(efx); + mac_up = falcon_xaui_link_ok(efx); --tries; } falcon_start_nic_stats(efx); + + return mac_up; +} + +static bool falcon_xmac_check_fault(struct efx_nic *efx) +{ + return !falcon_check_xaui_link_up(efx, 5); } static void falcon_reconfigure_xmac(struct efx_nic *efx) @@ -277,7 +283,7 @@ static void falcon_reconfigure_xmac(struct efx_nic *efx) falcon_reconfigure_mac_wrapper(efx); - falcon_check_xaui_link_up(efx, 5); + efx->xmac_poll_required = !falcon_check_xaui_link_up(efx, 5); falcon_mask_status_intr(efx, true); } @@ -341,35 +347,19 @@ static void falcon_update_stats_xmac(struct efx_nic *efx) mac_stats->rx_control * 64); } -static void falcon_xmac_irq(struct efx_nic *efx) -{ - /* The XGMII link has a transient fault, which indicates either: - * - there's a transient xgmii fault - * - falcon's end of the xaui link may need a kick - * - the wire-side link may have gone down, but the lasi/poll() - * hasn't noticed yet. - * - * We only want to even bother polling XAUI if we're confident it's - * not (1) or (3). In both cases, the only reliable way to spot this - * is to wait a bit. We do this here by forcing the mac link state - * to down, and waiting for the mac poll to come round and check - */ - efx->mac_up = false; -} - -static void falcon_poll_xmac(struct efx_nic *efx) +void falcon_poll_xmac(struct efx_nic *efx) { - if (!EFX_WORKAROUND_5147(efx) || !efx->link_state.up || efx->mac_up) + if (!EFX_WORKAROUND_5147(efx) || !efx->link_state.up || + !efx->xmac_poll_required) return; falcon_mask_status_intr(efx, false); - falcon_check_xaui_link_up(efx, 1); + efx->xmac_poll_required = !falcon_check_xaui_link_up(efx, 1); falcon_mask_status_intr(efx, true); } struct efx_mac_operations falcon_xmac_operations = { .reconfigure = falcon_reconfigure_xmac, .update_stats = falcon_update_stats_xmac, - .irq = falcon_xmac_irq, - .poll = falcon_poll_xmac, + .check_fault = falcon_xmac_check_fault, }; diff --git a/drivers/net/sfc/net_driver.h b/drivers/net/sfc/net_driver.h index 262aeabdcab7..cc1a97b0a0d3 100644 --- a/drivers/net/sfc/net_driver.h +++ b/drivers/net/sfc/net_driver.h @@ -507,14 +507,12 @@ struct efx_link_state { * struct efx_mac_operations - Efx MAC operations table * @reconfigure: Reconfigure MAC. Serialised by the mac_lock * @update_stats: Update statistics - * @irq: Hardware MAC event callback. Serialised by the mac_lock - * @poll: Poll for hardware state. Serialised by the mac_lock + * @check_fault: Check fault state. True if fault present. */ struct efx_mac_operations { void (*reconfigure) (struct efx_nic *efx); void (*update_stats) (struct efx_nic *efx); - void (*irq) (struct efx_nic *efx); - void (*poll) (struct efx_nic *efx); + bool (*check_fault)(struct efx_nic *efx); }; /** @@ -725,7 +723,7 @@ union efx_multicast_hash { * @phy_data: PHY private data (including PHY-specific stats) * @mdio: PHY MDIO interface * @phy_mode: PHY operating mode. Serialised by @mac_lock. - * @mac_up: MAC link state + * @xmac_poll_required: XMAC link state needs polling * @link_state: Current state of the link * @n_link_state_changes: Number of times the link has changed state * @promiscuous: Promiscuous flag. Protected by netif_tx_lock. @@ -810,7 +808,7 @@ struct efx_nic { struct mdio_if_info mdio; enum efx_phy_mode phy_mode; - bool mac_up; + bool xmac_poll_required; struct efx_link_state link_state; unsigned int n_link_state_changes; diff --git a/drivers/net/sfc/selftest.c b/drivers/net/sfc/selftest.c index 63ff295334e4..23e646a6c2cf 100644 --- a/drivers/net/sfc/selftest.c +++ b/drivers/net/sfc/selftest.c @@ -610,13 +610,10 @@ static int efx_test_loopbacks(struct efx_nic *efx, struct efx_self_tests *tests, flush_workqueue(efx->workqueue); rmb(); - /* We need both the phy and xaui links to be ok. - * rather than relying on the falcon_xmac irq/poll - * regime, just poll xaui directly */ + /* We need both the PHY and MAC-PHY links to be OK */ link_up = efx->link_state.up; - if (link_up && EFX_IS10G(efx) && - !falcon_xaui_link_ok(efx)) - link_up = false; + if (link_up) + link_up = !efx->mac_op->check_fault(efx); } while ((++count < 20) && !link_up); |