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-rw-r--r--drivers/net/sfc/efx.c132
-rw-r--r--drivers/net/sfc/efx.h12
-rw-r--r--drivers/net/sfc/ethtool.c61
-rw-r--r--drivers/net/sfc/falcon.c98
-rw-r--r--drivers/net/sfc/falcon.h3
-rw-r--r--drivers/net/sfc/falcon_boards.c3
-rw-r--r--drivers/net/sfc/falcon_gmac.c4
-rw-r--r--drivers/net/sfc/falcon_xmac.c8
-rw-r--r--drivers/net/sfc/mac.h1
-rw-r--r--drivers/net/sfc/mdio_10g.c41
-rw-r--r--drivers/net/sfc/mdio_10g.h3
-rw-r--r--drivers/net/sfc/net_driver.h8
-rw-r--r--drivers/net/sfc/qt202x_phy.c4
-rw-r--r--drivers/net/sfc/selftest.c11
-rw-r--r--drivers/net/sfc/tenxpress.c66
15 files changed, 273 insertions, 182 deletions
diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c
index 73ab246d9f2a..4210121eeff9 100644
--- a/drivers/net/sfc/efx.c
+++ b/drivers/net/sfc/efx.c
@@ -620,16 +620,49 @@ void efx_link_status_changed(struct efx_nic *efx)
}
+void efx_link_set_advertising(struct efx_nic *efx, u32 advertising)
+{
+ efx->link_advertising = advertising;
+ if (advertising) {
+ if (advertising & ADVERTISED_Pause)
+ efx->wanted_fc |= (EFX_FC_TX | EFX_FC_RX);
+ else
+ efx->wanted_fc &= ~(EFX_FC_TX | EFX_FC_RX);
+ if (advertising & ADVERTISED_Asym_Pause)
+ efx->wanted_fc ^= EFX_FC_TX;
+ }
+}
+
+void efx_link_set_wanted_fc(struct efx_nic *efx, enum efx_fc_type wanted_fc)
+{
+ efx->wanted_fc = wanted_fc;
+ if (efx->link_advertising) {
+ if (wanted_fc & EFX_FC_RX)
+ efx->link_advertising |= (ADVERTISED_Pause |
+ ADVERTISED_Asym_Pause);
+ else
+ efx->link_advertising &= ~(ADVERTISED_Pause |
+ ADVERTISED_Asym_Pause);
+ if (wanted_fc & EFX_FC_TX)
+ efx->link_advertising ^= ADVERTISED_Asym_Pause;
+ }
+}
+
static void efx_fini_port(struct efx_nic *efx);
-/* This call reinitialises the MAC to pick up new PHY settings. The
- * caller must hold the mac_lock */
-void __efx_reconfigure_port(struct efx_nic *efx)
+/* Push loopback/power/transmit disable settings to the PHY, and reconfigure
+ * the MAC appropriately. All other PHY configuration changes are pushed
+ * through phy_op->set_settings(), and pushed asynchronously to the MAC
+ * through efx_monitor().
+ *
+ * Callers must hold the mac_lock
+ */
+int __efx_reconfigure_port(struct efx_nic *efx)
{
- WARN_ON(!mutex_is_locked(&efx->mac_lock));
+ enum efx_phy_mode phy_mode;
+ int rc;
- EFX_LOG(efx, "reconfiguring MAC from PHY settings on CPU %d\n",
- raw_smp_processor_id());
+ WARN_ON(!mutex_is_locked(&efx->mac_lock));
/* Serialise the promiscuous flag with efx_set_multicast_list. */
if (efx_dev_registered(efx)) {
@@ -637,42 +670,34 @@ void __efx_reconfigure_port(struct efx_nic *efx)
netif_addr_unlock_bh(efx->net_dev);
}
- efx->type->stop_stats(efx);
- falcon_deconfigure_mac_wrapper(efx);
-
- /* Reconfigure the PHY, disabling transmit in mac level loopback. */
+ /* Disable PHY transmit in mac level loopbacks */
+ phy_mode = efx->phy_mode;
if (LOOPBACK_INTERNAL(efx))
efx->phy_mode |= PHY_MODE_TX_DISABLED;
else
efx->phy_mode &= ~PHY_MODE_TX_DISABLED;
- efx->phy_op->reconfigure(efx);
-
- if (falcon_switch_mac(efx))
- goto fail;
- efx->mac_op->reconfigure(efx);
+ rc = efx->type->reconfigure_port(efx);
- efx->type->start_stats(efx);
-
- /* Inform kernel of loss/gain of carrier */
- efx_link_status_changed(efx);
- return;
+ if (rc)
+ efx->phy_mode = phy_mode;
-fail:
- EFX_ERR(efx, "failed to reconfigure MAC\n");
- efx->port_enabled = false;
- efx_fini_port(efx);
+ return rc;
}
/* Reinitialise the MAC to pick up new PHY settings, even if the port is
* disabled. */
-void efx_reconfigure_port(struct efx_nic *efx)
+int efx_reconfigure_port(struct efx_nic *efx)
{
+ int rc;
+
EFX_ASSERT_RESET_SERIALISED(efx);
mutex_lock(&efx->mac_lock);
- __efx_reconfigure_port(efx);
+ rc = __efx_reconfigure_port(efx);
mutex_unlock(&efx->mac_lock);
+
+ return rc;
}
/* Asynchronous work item for changing MAC promiscuity and multicast
@@ -737,14 +762,18 @@ static int efx_init_port(struct efx_nic *efx)
rc = efx->phy_op->init(efx);
if (rc)
goto fail1;
- efx->phy_op->reconfigure(efx);
- rc = falcon_switch_mac(efx);
- if (rc)
- goto fail2;
- efx->mac_op->reconfigure(efx);
efx->port_initialized = true;
+ /* Reconfigure the MAC before creating dma queues (required for
+ * Falcon/A1 where RX_INGR_EN/TX_DRAIN_EN isn't supported) */
+ efx->mac_op->reconfigure(efx);
+
+ /* Ensure the PHY advertises the correct flow control settings */
+ rc = efx->phy_op->reconfigure(efx);
+ if (rc)
+ goto fail2;
+
mutex_unlock(&efx->mac_lock);
return 0;
@@ -1209,12 +1238,6 @@ static void efx_stop_all(struct efx_nic *efx)
/* Flush efx_mac_work(), refill_workqueue, monitor_work */
efx_flush_all(efx);
- /* Isolate the MAC from the TX and RX engines, so that queue
- * flushes will complete in a timely fashion. */
- falcon_deconfigure_mac_wrapper(efx);
- msleep(10); /* Let the Rx FIFO drain */
- falcon_drain_tx_fifo(efx);
-
/* Stop the kernel transmit interface late, so the watchdog
* timer isn't ticking over the flush */
if (efx_dev_registered(efx)) {
@@ -1491,7 +1514,14 @@ static int efx_change_mtu(struct net_device *net_dev, int new_mtu)
EFX_LOG(efx, "changing MTU to %d\n", new_mtu);
efx_fini_channels(efx);
+
+ mutex_lock(&efx->mac_lock);
+ /* Reconfigure the MAC before enabling the dma queues so that
+ * the RX buffers don't overflow */
net_dev->mtu = new_mtu;
+ efx->mac_op->reconfigure(efx);
+ mutex_unlock(&efx->mac_lock);
+
efx_init_channels(efx);
efx_start_all(efx);
@@ -1515,7 +1545,9 @@ static int efx_set_mac_address(struct net_device *net_dev, void *data)
memcpy(net_dev->dev_addr, new_addr, net_dev->addr_len);
/* Reconfigure the MAC */
- efx_reconfigure_port(efx);
+ mutex_lock(&efx->mac_lock);
+ efx->mac_op->reconfigure(efx);
+ mutex_unlock(&efx->mac_lock);
return 0;
}
@@ -1682,8 +1714,7 @@ static void efx_unregister_netdev(struct efx_nic *efx)
/* Tears down the entire software state and most of the hardware state
* before reset. */
-void efx_reset_down(struct efx_nic *efx, enum reset_type method,
- struct ethtool_cmd *ecmd)
+void efx_reset_down(struct efx_nic *efx, enum reset_type method)
{
EFX_ASSERT_RESET_SERIALISED(efx);
@@ -1691,8 +1722,6 @@ void efx_reset_down(struct efx_nic *efx, enum reset_type method,
mutex_lock(&efx->mac_lock);
mutex_lock(&efx->spi_lock);
- efx->phy_op->get_settings(efx, ecmd);
-
efx_fini_channels(efx);
if (efx->port_initialized && method != RESET_TYPE_INVISIBLE)
efx->phy_op->fini(efx);
@@ -1704,8 +1733,7 @@ void efx_reset_down(struct efx_nic *efx, enum reset_type method,
* that we were unable to reinitialise the hardware, and the
* driver should be disabled. If ok is false, then the rx and tx
* engines are not restarted, pending a RESET_DISABLE. */
-int efx_reset_up(struct efx_nic *efx, enum reset_type method,
- struct ethtool_cmd *ecmd, bool ok)
+int efx_reset_up(struct efx_nic *efx, enum reset_type method, bool ok)
{
int rc;
@@ -1722,16 +1750,17 @@ int efx_reset_up(struct efx_nic *efx, enum reset_type method,
rc = efx->phy_op->init(efx);
if (rc)
ok = false;
+ if (efx->phy_op->reconfigure(efx))
+ EFX_ERR(efx, "could not restore PHY settings\n");
}
if (!ok)
efx->port_initialized = false;
}
if (ok) {
- efx_init_channels(efx);
+ efx->mac_op->reconfigure(efx);
- if (efx->phy_op->set_settings(efx, ecmd))
- EFX_ERR(efx, "could not restore PHY settings\n");
+ efx_init_channels(efx);
}
mutex_unlock(&efx->spi_lock);
@@ -1753,7 +1782,6 @@ int efx_reset_up(struct efx_nic *efx, enum reset_type method,
*/
static int efx_reset(struct efx_nic *efx)
{
- struct ethtool_cmd ecmd;
enum reset_type method = efx->reset_pending;
int rc = 0;
@@ -1769,7 +1797,7 @@ static int efx_reset(struct efx_nic *efx)
EFX_INFO(efx, "resetting (%s)\n", RESET_TYPE(method));
- efx_reset_down(efx, method, &ecmd);
+ efx_reset_down(efx, method);
rc = efx->type->reset(efx, method);
if (rc) {
@@ -1788,10 +1816,10 @@ static int efx_reset(struct efx_nic *efx)
/* Leave device stopped if necessary */
if (method == RESET_TYPE_DISABLE) {
- efx_reset_up(efx, method, &ecmd, false);
+ efx_reset_up(efx, method, false);
rc = -EIO;
} else {
- rc = efx_reset_up(efx, method, &ecmd, true);
+ rc = efx_reset_up(efx, method, true);
}
out_disable:
@@ -1895,7 +1923,7 @@ bool efx_port_dummy_op_poll(struct efx_nic *efx)
static struct efx_phy_operations efx_dummy_phy_operations = {
.init = efx_port_dummy_op_int,
- .reconfigure = efx_port_dummy_op_void,
+ .reconfigure = efx_port_dummy_op_int,
.poll = efx_port_dummy_op_poll,
.fini = efx_port_dummy_op_void,
};
diff --git a/drivers/net/sfc/efx.h b/drivers/net/sfc/efx.h
index 15edda2a2242..c78500321586 100644
--- a/drivers/net/sfc/efx.h
+++ b/drivers/net/sfc/efx.h
@@ -60,8 +60,8 @@ extern void efx_process_channel_now(struct efx_channel *channel);
#define EFX_EVQ_MASK (EFX_EVQ_SIZE - 1)
/* Ports */
-extern void efx_reconfigure_port(struct efx_nic *efx);
-extern void __efx_reconfigure_port(struct efx_nic *efx);
+extern int efx_reconfigure_port(struct efx_nic *efx);
+extern int __efx_reconfigure_port(struct efx_nic *efx);
/* Ethtool support */
extern int efx_ethtool_get_settings(struct net_device *net_dev,
@@ -71,10 +71,8 @@ extern int efx_ethtool_set_settings(struct net_device *net_dev,
extern const struct ethtool_ops efx_ethtool_ops;
/* Reset handling */
-extern void efx_reset_down(struct efx_nic *efx, enum reset_type method,
- struct ethtool_cmd *ecmd);
-extern int efx_reset_up(struct efx_nic *efx, enum reset_type method,
- struct ethtool_cmd *ecmd, bool ok);
+extern void efx_reset_down(struct efx_nic *efx, enum reset_type method);
+extern int efx_reset_up(struct efx_nic *efx, enum reset_type method, bool ok);
/* Global */
extern void efx_schedule_reset(struct efx_nic *efx, enum reset_type type);
@@ -115,5 +113,7 @@ static inline void efx_schedule_channel(struct efx_channel *channel)
}
extern void efx_link_status_changed(struct efx_nic *efx);
+extern void efx_link_set_advertising(struct efx_nic *efx, u32);
+extern void efx_link_set_wanted_fc(struct efx_nic *efx, enum efx_fc_type);
#endif /* EFX_EFX_H */
diff --git a/drivers/net/sfc/ethtool.c b/drivers/net/sfc/ethtool.c
index 49e0aed920d3..d95d0fa399ff 100644
--- a/drivers/net/sfc/ethtool.c
+++ b/drivers/net/sfc/ethtool.c
@@ -10,7 +10,6 @@
#include <linux/netdevice.h>
#include <linux/ethtool.h>
-#include <linux/mdio.h>
#include <linux/rtnetlink.h>
#include "net_driver.h"
#include "workarounds.h"
@@ -191,6 +190,7 @@ int efx_ethtool_get_settings(struct net_device *net_dev,
struct ethtool_cmd *ecmd)
{
struct efx_nic *efx = netdev_priv(net_dev);
+ struct efx_link_state *link_state = &efx->link_state;
mutex_lock(&efx->mac_lock);
efx->phy_op->get_settings(efx, ecmd);
@@ -198,6 +198,13 @@ int efx_ethtool_get_settings(struct net_device *net_dev,
/* Falcon GMAC does not support 1000Mbps HD */
ecmd->supported &= ~SUPPORTED_1000baseT_Half;
+ /* Both MACs support pause frames (bidirectional and respond-only) */
+ ecmd->supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause;
+
+ if (LOOPBACK_INTERNAL(efx)) {
+ ecmd->speed = link_state->speed;
+ ecmd->duplex = link_state->fd ? DUPLEX_FULL : DUPLEX_HALF;
+ }
return 0;
}
@@ -219,9 +226,6 @@ int efx_ethtool_set_settings(struct net_device *net_dev,
mutex_lock(&efx->mac_lock);
rc = efx->phy_op->set_settings(efx, ecmd);
mutex_unlock(&efx->mac_lock);
- if (!rc)
- efx_reconfigure_port(efx);
-
return rc;
}
@@ -658,8 +662,12 @@ static int efx_ethtool_set_pauseparam(struct net_device *net_dev,
struct ethtool_pauseparam *pause)
{
struct efx_nic *efx = netdev_priv(net_dev);
- enum efx_fc_type wanted_fc;
+ enum efx_fc_type wanted_fc, old_fc;
+ u32 old_adv;
bool reset;
+ int rc = 0;
+
+ mutex_lock(&efx->mac_lock);
wanted_fc = ((pause->rx_pause ? EFX_FC_RX : 0) |
(pause->tx_pause ? EFX_FC_TX : 0) |
@@ -667,14 +675,14 @@ static int efx_ethtool_set_pauseparam(struct net_device *net_dev,
if ((wanted_fc & EFX_FC_TX) && !(wanted_fc & EFX_FC_RX)) {
EFX_LOG(efx, "Flow control unsupported: tx ON rx OFF\n");
- return -EINVAL;
+ rc = -EINVAL;
+ goto out;
}
- if (!(efx->phy_op->mmds & MDIO_DEVS_AN) &&
- (wanted_fc & EFX_FC_AUTO)) {
- EFX_LOG(efx, "PHY does not support flow control "
- "autonegotiation\n");
- return -EINVAL;
+ if ((wanted_fc & EFX_FC_AUTO) && !efx->link_advertising) {
+ EFX_LOG(efx, "Autonegotiation is disabled\n");
+ rc = -EINVAL;
+ goto out;
}
/* TX flow control may automatically turn itself off if the
@@ -686,25 +694,38 @@ static int efx_ethtool_set_pauseparam(struct net_device *net_dev,
if (EFX_WORKAROUND_11482(efx) && reset) {
if (efx_nic_rev(efx) == EFX_REV_FALCON_B0) {
/* Recover by resetting the EM block */
- if (efx->link_state.up)
- falcon_drain_tx_fifo(efx);
+ falcon_stop_nic_stats(efx);
+ falcon_drain_tx_fifo(efx);
+ efx->mac_op->reconfigure(efx);
+ falcon_start_nic_stats(efx);
} else {
/* Schedule a reset to recover */
efx_schedule_reset(efx, RESET_TYPE_INVISIBLE);
}
}
- /* Try to push the pause parameters */
- mutex_lock(&efx->mac_lock);
+ old_adv = efx->link_advertising;
+ old_fc = efx->wanted_fc;
+ efx_link_set_wanted_fc(efx, wanted_fc);
+ if (efx->link_advertising != old_adv ||
+ (efx->wanted_fc ^ old_fc) & EFX_FC_AUTO) {
+ rc = efx->phy_op->reconfigure(efx);
+ if (rc) {
+ EFX_ERR(efx, "Unable to advertise requested flow "
+ "control setting\n");
+ goto out;
+ }
+ }
- efx->wanted_fc = wanted_fc;
- if (efx->phy_op->mmds & MDIO_DEVS_AN)
- mdio45_ethtool_spauseparam_an(&efx->mdio, pause);
- __efx_reconfigure_port(efx);
+ /* Reconfigure the MAC. The PHY *may* generate a link state change event
+ * if the user just changed the advertised capabilities, but there's no
+ * harm doing this twice */
+ efx->mac_op->reconfigure(efx);
+out:
mutex_unlock(&efx->mac_lock);
- return 0;
+ return rc;
}
static void efx_ethtool_get_pauseparam(struct net_device *net_dev,
diff --git a/drivers/net/sfc/falcon.c b/drivers/net/sfc/falcon.c
index f6d10213d0b7..3466616c01c0 100644
--- a/drivers/net/sfc/falcon.c
+++ b/drivers/net/sfc/falcon.c
@@ -1193,6 +1193,8 @@ static void falcon_poll_flush_events(struct efx_nic *efx)
channel->eventq_read_ptr = read_ptr;
}
+static void falcon_deconfigure_mac_wrapper(struct efx_nic *efx);
+
static void falcon_prepare_flush(struct efx_nic *efx)
{
falcon_deconfigure_mac_wrapper(efx);
@@ -1836,9 +1838,10 @@ static void falcon_push_multicast_hash(struct efx_nic *efx)
efx_writeo(efx, &mc_hash->oword[1], FR_AB_MAC_MC_HASH_REG1);
}
-static int falcon_reset_macs(struct efx_nic *efx)
+static void falcon_reset_macs(struct efx_nic *efx)
{
- efx_oword_t reg;
+ struct falcon_nic_data *nic_data = efx->nic_data;
+ efx_oword_t reg, mac_ctrl;
int count;
if (efx_nic_rev(efx) < EFX_REV_FALCON_B0) {
@@ -1853,7 +1856,7 @@ static int falcon_reset_macs(struct efx_nic *efx)
EFX_POPULATE_OWORD_1(reg, FRF_AB_GM_SW_RST, 0);
efx_writeo(efx, &reg, FR_AB_GM_CFG1);
udelay(1000);
- return 0;
+ return;
} else {
EFX_POPULATE_OWORD_1(reg, FRF_AB_XM_CORE_RST, 1);
efx_writeo(efx, &reg, FR_AB_XM_GLB_CFG);
@@ -1862,22 +1865,20 @@ static int falcon_reset_macs(struct efx_nic *efx)
efx_reado(efx, &reg, FR_AB_XM_GLB_CFG);
if (EFX_OWORD_FIELD(reg, FRF_AB_XM_CORE_RST) ==
0)
- return 0;
+ return;
udelay(10);
}
EFX_ERR(efx, "timed out waiting for XMAC core reset\n");
- return -ETIMEDOUT;
}
}
- /* MAC stats will fail whilst the TX fifo is draining. Serialise
- * the drain sequence with the statistics fetch */
- falcon_stop_nic_stats(efx);
+ /* Mac stats will fail whist the TX fifo is draining */
+ WARN_ON(nic_data->stats_disable_count == 0);
- efx_reado(efx, &reg, FR_AB_MAC_CTRL);
- EFX_SET_OWORD_FIELD(reg, FRF_BB_TXFIFO_DRAIN_EN, 1);
- efx_writeo(efx, &reg, FR_AB_MAC_CTRL);
+ efx_reado(efx, &mac_ctrl, FR_AB_MAC_CTRL);
+ EFX_SET_OWORD_FIELD(mac_ctrl, FRF_BB_TXFIFO_DRAIN_EN, 1);
+ efx_writeo(efx, &mac_ctrl, FR_AB_MAC_CTRL);
efx_reado(efx, &reg, FR_AB_GLB_CTL);
EFX_SET_OWORD_FIELD(reg, FRF_AB_RST_XGTX, 1);
@@ -1903,14 +1904,9 @@ static int falcon_reset_macs(struct efx_nic *efx)
udelay(10);
}
- /* If we've reset the EM block and the link is up, then
- * we'll have to kick the XAUI link so the PHY can recover */
- if (efx->link_state.up && EFX_IS10G(efx) && EFX_WORKAROUND_5147(efx))
- falcon_reset_xaui(efx);
-
- falcon_start_nic_stats(efx);
-
- return 0;
+ /* Ensure the correct MAC is selected before statistics
+ * are re-enabled by the caller */
+ efx_writeo(efx, &mac_ctrl, FR_AB_MAC_CTRL);
}
void falcon_drain_tx_fifo(struct efx_nic *efx)
@@ -1929,7 +1925,7 @@ void falcon_drain_tx_fifo(struct efx_nic *efx)
falcon_reset_macs(efx);
}
-void falcon_deconfigure_mac_wrapper(struct efx_nic *efx)
+static void falcon_deconfigure_mac_wrapper(struct efx_nic *efx)
{
efx_oword_t reg;
@@ -1941,8 +1937,8 @@ void falcon_deconfigure_mac_wrapper(struct efx_nic *efx)
EFX_SET_OWORD_FIELD(reg, FRF_BZ_RX_INGR_EN, 0);
efx_writeo(efx, &reg, FR_AZ_RX_CFG);
- if (!efx->link_state.up)
- falcon_drain_tx_fifo(efx);
+ /* Isolate TX -> MAC */
+ falcon_drain_tx_fifo(efx);
}
void falcon_reconfigure_mac_wrapper(struct efx_nic *efx)
@@ -2044,6 +2040,8 @@ static void falcon_stats_timer_func(unsigned long context)
spin_unlock(&efx->stats_lock);
}
+static void falcon_switch_mac(struct efx_nic *efx);
+
static bool falcon_loopback_link_poll(struct efx_nic *efx)
{
struct efx_link_state old_state = efx->link_state;
@@ -2063,6 +2061,38 @@ static bool falcon_loopback_link_poll(struct efx_nic *efx)
return !efx_link_state_equal(&efx->link_state, &old_state);
}
+static int falcon_reconfigure_port(struct efx_nic *efx)
+{
+ int rc;
+
+ WARN_ON(efx_nic_rev(efx) > EFX_REV_FALCON_B0);
+
+ /* Poll the PHY link state *before* reconfiguring it. This means we
+ * will pick up the correct speed (in loopback) to select the correct
+ * MAC.
+ */
+ if (LOOPBACK_INTERNAL(efx))
+ falcon_loopback_link_poll(efx);
+ else
+ efx->phy_op->poll(efx);
+
+ falcon_stop_nic_stats(efx);
+ falcon_deconfigure_mac_wrapper(efx);
+
+ falcon_switch_mac(efx);
+
+ efx->phy_op->reconfigure(efx);
+ rc = efx->mac_op->reconfigure(efx);
+ BUG_ON(rc);
+
+ falcon_start_nic_stats(efx);
+
+ /* Synchronise efx->link_state with the kernel */
+ efx_link_status_changed(efx);
+
+ return 0;
+}
+
/**************************************************************************
*
* PHY access via GMII
@@ -2215,17 +2245,15 @@ static void falcon_clock_mac(struct efx_nic *efx)
}
}
-int falcon_switch_mac(struct efx_nic *efx)
+static void falcon_switch_mac(struct efx_nic *efx)
{
struct efx_mac_operations *old_mac_op = efx->mac_op;
struct falcon_nic_data *nic_data = efx->nic_data;
unsigned int stats_done_offset;
- int rc = 0;
-
- /* Don't try to fetch MAC stats while we're switching MACs */
- falcon_stop_nic_stats(efx);
WARN_ON(!mutex_is_locked(&efx->mac_lock));
+ WARN_ON(nic_data->stats_disable_count == 0);
+
efx->mac_op = (EFX_IS10G(efx) ?
&falcon_xmac_operations : &falcon_gmac_operations);
@@ -2236,18 +2264,14 @@ int falcon_switch_mac(struct efx_nic *efx)
nic_data->stats_dma_done = efx->stats_buffer.addr + stats_done_offset;
if (old_mac_op == efx->mac_op)
- goto out;
+ return;
falcon_clock_mac(efx);
EFX_LOG(efx, "selected %cMAC\n", EFX_IS10G(efx) ? 'X' : 'G');
/* Not all macs support a mac-level link state */
efx->xmac_poll_required = false;
-
- rc = falcon_reset_macs(efx);
-out:
- falcon_start_nic_stats(efx);
- return rc;
+ falcon_reset_macs(efx);
}
/* This call is responsible for hooking in the MAC and PHY operations */
@@ -2597,7 +2621,8 @@ static void falcon_monitor(struct efx_nic *efx)
EFX_ERR(efx, "Board sensor %s; shutting down PHY\n",
(rc == -ERANGE) ? "reported fault" : "failed");
efx->phy_mode |= PHY_MODE_LOW_POWER;
- __efx_reconfigure_port(efx);
+ rc = __efx_reconfigure_port(efx);
+ WARN_ON(rc);
}
if (LOOPBACK_INTERNAL(efx))
@@ -2610,7 +2635,8 @@ static void falcon_monitor(struct efx_nic *efx)
falcon_deconfigure_mac_wrapper(efx);
falcon_switch_mac(efx);
- efx->mac_op->reconfigure(efx);
+ rc = efx->mac_op->reconfigure(efx);
+ BUG_ON(rc);
falcon_start_nic_stats(efx);
@@ -3239,6 +3265,7 @@ struct efx_nic_type falcon_a1_nic_type = {
.stop_stats = falcon_stop_nic_stats,
.push_irq_moderation = falcon_push_irq_moderation,
.push_multicast_hash = falcon_push_multicast_hash,
+ .reconfigure_port = falcon_reconfigure_port,
.default_mac_ops = &falcon_xmac_operations,
.revision = EFX_REV_FALCON_A1,
@@ -3271,6 +3298,7 @@ struct efx_nic_type falcon_b0_nic_type = {
.stop_stats = falcon_stop_nic_stats,
.push_irq_moderation = falcon_push_irq_moderation,
.push_multicast_hash = falcon_push_multicast_hash,
+ .reconfigure_port = falcon_reconfigure_port,
.default_mac_ops = &falcon_xmac_operations,
.revision = EFX_REV_FALCON_B0,
diff --git a/drivers/net/sfc/falcon.h b/drivers/net/sfc/falcon.h
index 3fe64849c98d..560a3f9895a5 100644
--- a/drivers/net/sfc/falcon.h
+++ b/drivers/net/sfc/falcon.h
@@ -130,10 +130,7 @@ extern int falcon_process_eventq(struct efx_channel *channel, int rx_quota);
extern void falcon_eventq_read_ack(struct efx_channel *channel);
/* MAC/PHY */
-extern int falcon_switch_mac(struct efx_nic *efx);
-extern bool falcon_xaui_link_ok(struct efx_nic *efx);
extern void falcon_drain_tx_fifo(struct efx_nic *efx);
-extern void falcon_deconfigure_mac_wrapper(struct efx_nic *efx);
extern void falcon_reconfigure_mac_wrapper(struct efx_nic *efx);
/* Interrupts and test events */
diff --git a/drivers/net/sfc/falcon_boards.c b/drivers/net/sfc/falcon_boards.c
index da750959c61a..b92decc9521b 100644
--- a/drivers/net/sfc/falcon_boards.c
+++ b/drivers/net/sfc/falcon_boards.c
@@ -352,7 +352,8 @@ static ssize_t set_phy_flash_cfg(struct device *dev,
err = sfe4001_poweron(efx);
else
err = sfn4111t_reset(efx);
- efx_reconfigure_port(efx);
+ if (!err)
+ err = efx_reconfigure_port(efx);
if (!(new_mode & PHY_MODE_SPECIAL))
falcon_start_nic_stats(efx);
}
diff --git a/drivers/net/sfc/falcon_gmac.c b/drivers/net/sfc/falcon_gmac.c
index 66d499cc23f2..19dd3ac3d1c7 100644
--- a/drivers/net/sfc/falcon_gmac.c
+++ b/drivers/net/sfc/falcon_gmac.c
@@ -22,7 +22,7 @@
*
*************************************************************************/
-static void falcon_reconfigure_gmac(struct efx_nic *efx)
+static int falcon_reconfigure_gmac(struct efx_nic *efx)
{
struct efx_link_state *link_state = &efx->link_state;
bool loopback, tx_fc, rx_fc, bytemode;
@@ -123,6 +123,8 @@ static void falcon_reconfigure_gmac(struct efx_nic *efx)
udelay(10);
falcon_reconfigure_mac_wrapper(efx);
+
+ return 0;
}
static void falcon_update_stats_gmac(struct efx_nic *efx)
diff --git a/drivers/net/sfc/falcon_xmac.c b/drivers/net/sfc/falcon_xmac.c
index 60dc0975cfa4..898afc1b5ef1 100644
--- a/drivers/net/sfc/falcon_xmac.c
+++ b/drivers/net/sfc/falcon_xmac.c
@@ -112,7 +112,7 @@ static void falcon_mask_status_intr(struct efx_nic *efx, bool enable)
}
/* Get status of XAUI link */
-bool falcon_xaui_link_ok(struct efx_nic *efx)
+static bool falcon_xaui_link_ok(struct efx_nic *efx)
{
efx_oword_t reg;
bool align_done, link_ok = false;
@@ -143,7 +143,7 @@ bool falcon_xaui_link_ok(struct efx_nic *efx)
return link_ok;
}
-static void falcon_reconfigure_xmac_core(struct efx_nic *efx)
+void falcon_reconfigure_xmac_core(struct efx_nic *efx)
{
unsigned int max_frame_len;
efx_oword_t reg;
@@ -275,7 +275,7 @@ 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)
+static int falcon_reconfigure_xmac(struct efx_nic *efx)
{
falcon_mask_status_intr(efx, false);
@@ -286,6 +286,8 @@ static void falcon_reconfigure_xmac(struct efx_nic *efx)
efx->xmac_poll_required = !falcon_check_xaui_link_up(efx, 5);
falcon_mask_status_intr(efx, true);
+
+ return 0;
}
static void falcon_update_stats_xmac(struct efx_nic *efx)
diff --git a/drivers/net/sfc/mac.h b/drivers/net/sfc/mac.h
index 4e7074278fe1..d2af50f1747b 100644
--- a/drivers/net/sfc/mac.h
+++ b/drivers/net/sfc/mac.h
@@ -15,5 +15,6 @@
extern struct efx_mac_operations falcon_gmac_operations;
extern struct efx_mac_operations falcon_xmac_operations;
+extern void falcon_reconfigure_xmac_core(struct efx_nic *efx);
#endif
diff --git a/drivers/net/sfc/mdio_10g.c b/drivers/net/sfc/mdio_10g.c
index 231e580acc9a..1f62a5c002fd 100644
--- a/drivers/net/sfc/mdio_10g.c
+++ b/drivers/net/sfc/mdio_10g.c
@@ -248,8 +248,6 @@ void efx_mdio_set_mmds_lpower(struct efx_nic *efx,
int efx_mdio_set_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd)
{
struct ethtool_cmd prev;
- bool xnp;
- int reg;
efx->phy_op->get_settings(efx, &prev);
@@ -269,30 +267,47 @@ int efx_mdio_set_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd)
(ecmd->advertising | SUPPORTED_Autoneg) & ~prev.supported)
return -EINVAL;
- xnp = (ecmd->advertising & ADVERTISED_10000baseT_Full
- || EFX_WORKAROUND_13204(efx));
+ efx_link_set_advertising(efx, ecmd->advertising | ADVERTISED_Autoneg);
+ efx_mdio_an_reconfigure(efx);
+ return 0;
+}
+
+/**
+ * efx_mdio_an_reconfigure - Push advertising flags and restart autonegotiation
+ * @efx: Efx NIC
+ */
+void efx_mdio_an_reconfigure(struct efx_nic *efx)
+{
+ bool xnp = (efx->link_advertising & ADVERTISED_10000baseT_Full
+ || EFX_WORKAROUND_13204(efx));
+ int reg;
+
+ WARN_ON(!(efx->mdio.mmds & MDIO_DEVS_AN));
/* Set up the base page */
reg = ADVERTISE_CSMA;
- if (ecmd->advertising & ADVERTISED_10baseT_Half)
+ if (efx->link_advertising & ADVERTISED_10baseT_Half)
reg |= ADVERTISE_10HALF;
- if (ecmd->advertising & ADVERTISED_10baseT_Full)
+ if (efx->link_advertising & ADVERTISED_10baseT_Full)
reg |= ADVERTISE_10FULL;
- if (ecmd->advertising & ADVERTISED_100baseT_Half)
+ if (efx->link_advertising & ADVERTISED_100baseT_Half)
reg |= ADVERTISE_100HALF;
- if (ecmd->advertising & ADVERTISED_100baseT_Full)
+ if (efx->link_advertising & ADVERTISED_100baseT_Full)
reg |= ADVERTISE_100FULL;
if (xnp)
reg |= ADVERTISE_RESV;
- else if (ecmd->advertising & (ADVERTISED_1000baseT_Half |
- ADVERTISED_1000baseT_Full))
+ else if (efx->link_advertising & (ADVERTISED_1000baseT_Half |
+ ADVERTISED_1000baseT_Full))
reg |= ADVERTISE_NPAGE;
- reg |= mii_advertise_flowctrl(efx->wanted_fc);
+ if (efx->link_advertising & ADVERTISED_Pause)
+ reg |= ADVERTISE_PAUSE_CAP;
+ if (efx->link_advertising & ADVERTISED_Asym_Pause)
+ reg |= ADVERTISE_PAUSE_ASYM;
efx_mdio_write(efx, MDIO_MMD_AN, MDIO_AN_ADVERTISE, reg);
/* Set up the (extended) next page if necessary */
if (efx->phy_op->set_npage_adv)
- efx->phy_op->set_npage_adv(efx, ecmd->advertising);
+ efx->phy_op->set_npage_adv(efx, efx->link_advertising);
/* Enable and restart AN */
reg = efx_mdio_read(efx, MDIO_MMD_AN, MDIO_CTRL1);
@@ -305,8 +320,6 @@ int efx_mdio_set_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd)
else
reg &= ~MDIO_AN_CTRL1_XNP;
efx_mdio_write(efx, MDIO_MMD_AN, MDIO_CTRL1, reg);
-
- return 0;
}
enum efx_fc_type efx_mdio_get_pause(struct efx_nic *efx)
diff --git a/drivers/net/sfc/mdio_10g.h b/drivers/net/sfc/mdio_10g.h
index 75b37f101231..dbc8e7de2929 100644
--- a/drivers/net/sfc/mdio_10g.h
+++ b/drivers/net/sfc/mdio_10g.h
@@ -86,6 +86,9 @@ extern void efx_mdio_set_mmds_lpower(struct efx_nic *efx,
/* Set (some of) the PHY settings over MDIO */
extern int efx_mdio_set_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd);
+/* Push advertising flags and restart autonegotiation */
+extern void efx_mdio_an_reconfigure(struct efx_nic *efx);
+
/* Get pause parameters from AN if available (otherwise return
* requested pause parameters)
*/
diff --git a/drivers/net/sfc/net_driver.h b/drivers/net/sfc/net_driver.h
index 32806f9a7e49..f63a05c4e38b 100644
--- a/drivers/net/sfc/net_driver.h
+++ b/drivers/net/sfc/net_driver.h
@@ -517,7 +517,7 @@ static inline bool efx_link_state_equal(const struct efx_link_state *left,
* @check_fault: Check fault state. True if fault present.
*/
struct efx_mac_operations {
- void (*reconfigure) (struct efx_nic *efx);
+ int (*reconfigure) (struct efx_nic *efx);
void (*update_stats) (struct efx_nic *efx);
bool (*check_fault)(struct efx_nic *efx);
};
@@ -544,7 +544,7 @@ struct efx_phy_operations {
enum efx_mac_type macs;
int (*init) (struct efx_nic *efx);
void (*fini) (struct efx_nic *efx);
- void (*reconfigure) (struct efx_nic *efx);
+ int (*reconfigure) (struct efx_nic *efx);
bool (*poll) (struct efx_nic *efx);
void (*get_settings) (struct efx_nic *efx,
struct ethtool_cmd *ecmd);
@@ -730,6 +730,7 @@ union efx_multicast_hash {
* @mdio: PHY MDIO interface
* @phy_mode: PHY operating mode. Serialised by @mac_lock.
* @xmac_poll_required: XMAC link state needs polling
+ * @link_advertising: Autonegotiation advertising flags
* @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.
@@ -813,6 +814,7 @@ struct efx_nic {
enum efx_phy_mode phy_mode;
bool xmac_poll_required;
+ u32 link_advertising;
struct efx_link_state link_state;
unsigned int n_link_state_changes;
@@ -858,6 +860,7 @@ static inline const char *efx_dev_name(struct efx_nic *efx)
* @stop_stats: Stop the regular fetching of statistics
* @push_irq_moderation: Apply interrupt moderation value
* @push_multicast_hash: Apply multicast hash table
+ * @reconfigure_port: Push loopback/power/txdis changes to the MAC and PHY
* @default_mac_ops: efx_mac_operations to set at startup
* @revision: Hardware architecture revision
* @mem_map_size: Memory BAR mapped size
@@ -890,6 +893,7 @@ struct efx_nic_type {
void (*stop_stats)(struct efx_nic *efx);
void (*push_irq_moderation)(struct efx_channel *channel);
void (*push_multicast_hash)(struct efx_nic *efx);
+ int (*reconfigure_port)(struct efx_nic *efx);
struct efx_mac_operations *default_mac_ops;
int revision;
diff --git a/drivers/net/sfc/qt202x_phy.c b/drivers/net/sfc/qt202x_phy.c
index 3d7370e39787..4c38516a5525 100644
--- a/drivers/net/sfc/qt202x_phy.c
+++ b/drivers/net/sfc/qt202x_phy.c
@@ -178,7 +178,7 @@ static bool qt202x_phy_poll(struct efx_nic *efx)
return efx->link_state.up != was_up;
}
-static void qt202x_phy_reconfigure(struct efx_nic *efx)
+static int qt202x_phy_reconfigure(struct efx_nic *efx)
{
struct qt202x_phy_data *phy_data = efx->phy_data;
@@ -207,6 +207,8 @@ static void qt202x_phy_reconfigure(struct efx_nic *efx)
efx_mdio_phy_reconfigure(efx);
phy_data->phy_mode = efx->phy_mode;
+
+ return 0;
}
static void qt202x_phy_get_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd)
diff --git a/drivers/net/sfc/selftest.c b/drivers/net/sfc/selftest.c
index 15d4d9c81362..dddeb9dfb373 100644
--- a/drivers/net/sfc/selftest.c
+++ b/drivers/net/sfc/selftest.c
@@ -659,7 +659,6 @@ int efx_selftest(struct efx_nic *efx, struct efx_self_tests *tests,
enum efx_loopback_mode loopback_mode = efx->loopback_mode;
int phy_mode = efx->phy_mode;
enum reset_type reset_method = RESET_TYPE_INVISIBLE;
- struct ethtool_cmd ecmd;
struct efx_channel *channel;
int rc_test = 0, rc_reset = 0, rc;
@@ -712,7 +711,7 @@ int efx_selftest(struct efx_nic *efx, struct efx_self_tests *tests,
mutex_unlock(&efx->mac_lock);
/* free up all consumers of SRAM (including all the queues) */
- efx_reset_down(efx, reset_method, &ecmd);
+ efx_reset_down(efx, reset_method);
rc = efx_test_chip(efx, tests);
if (rc && !rc_test)
@@ -726,7 +725,7 @@ int efx_selftest(struct efx_nic *efx, struct efx_self_tests *tests,
efx->phy_mode &= ~PHY_MODE_LOW_POWER;
efx->loopback_mode = LOOPBACK_NONE;
- rc = efx_reset_up(efx, reset_method, &ecmd, rc_reset == 0);
+ rc = efx_reset_up(efx, reset_method, rc_reset == 0);
if (rc && !rc_reset)
rc_reset = rc;
@@ -745,10 +744,12 @@ int efx_selftest(struct efx_nic *efx, struct efx_self_tests *tests,
rc_test = rc;
/* restore the PHY to the previous state */
- efx->loopback_mode = loopback_mode;
+ mutex_lock(&efx->mac_lock);
efx->phy_mode = phy_mode;
efx->port_inhibited = false;
- efx_ethtool_set_settings(efx->net_dev, &ecmd);
+ efx->loopback_mode = loopback_mode;
+ __efx_reconfigure_port(efx);
+ mutex_unlock(&efx->mac_lock);
return rc_test;
}
diff --git a/drivers/net/sfc/tenxpress.c b/drivers/net/sfc/tenxpress.c
index 1bd79650a00f..c30185393cdc 100644
--- a/drivers/net/sfc/tenxpress.c
+++ b/drivers/net/sfc/tenxpress.c
@@ -199,15 +199,16 @@ static ssize_t set_phy_short_reach(struct device *dev,
const char *buf, size_t count)
{
struct efx_nic *efx = pci_get_drvdata(to_pci_dev(dev));
+ int rc;
rtnl_lock();
efx_mdio_set_flag(efx, MDIO_MMD_PMAPMD, MDIO_PMA_10GBT_TXPWR,
MDIO_PMA_10GBT_TXPWR_SHORT,
count != 0 && *buf != '0');
- efx_reconfigure_port(efx);
+ rc = efx_reconfigure_port(efx);
rtnl_unlock();
- return count;
+ return rc < 0 ? rc : (ssize_t)count;
}
static DEVICE_ATTR(phy_short_reach, 0644, show_phy_short_reach,
@@ -300,7 +301,6 @@ static int tenxpress_init(struct efx_nic *efx)
static int tenxpress_phy_init(struct efx_nic *efx)
{
struct tenxpress_phy_data *phy_data;
- u16 old_adv, adv;
int rc = 0;
falcon_board(efx)->type->init_phy(efx);
@@ -335,14 +335,14 @@ static int tenxpress_phy_init(struct efx_nic *efx)
if (rc < 0)
goto fail;
- /* Set pause advertising */
- old_adv = efx_mdio_read(efx, MDIO_MMD_AN, MDIO_AN_ADVERTISE);
- adv = ((old_adv & ~(ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM)) |
- mii_advertise_flowctrl(efx->wanted_fc));
- if (adv != old_adv) {
- efx_mdio_write(efx, MDIO_MMD_AN, MDIO_AN_ADVERTISE, adv);
- mdio45_nway_restart(&efx->mdio);
- }
+ /* Initialise advertising flags */
+ efx->link_advertising = (ADVERTISED_TP | ADVERTISED_Autoneg |
+ ADVERTISED_10000baseT_Full);
+ if (efx->phy_type != PHY_TYPE_SFX7101)
+ efx->link_advertising |= (ADVERTISED_1000baseT_Full |
+ ADVERTISED_100baseT_Full);
+ efx_link_set_wanted_fc(efx, efx->wanted_fc);
+ efx_mdio_an_reconfigure(efx);
if (efx->phy_type == PHY_TYPE_SFT9001B) {
rc = device_create_file(&efx->pci_dev->dev,
@@ -500,49 +500,41 @@ static void tenxpress_low_power(struct efx_nic *efx)
!!(efx->phy_mode & PHY_MODE_LOW_POWER));
}
-static void tenxpress_phy_reconfigure(struct efx_nic *efx)
+static int tenxpress_phy_reconfigure(struct efx_nic *efx)
{
struct tenxpress_phy_data *phy_data = efx->phy_data;
- struct ethtool_cmd ecmd;
bool phy_mode_change, loop_reset;
if (efx->phy_mode & (PHY_MODE_OFF | PHY_MODE_SPECIAL)) {
phy_data->phy_mode = efx->phy_mode;
- return;
+ return 0;
}
- tenxpress_low_power(efx);
-
phy_mode_change = (efx->phy_mode == PHY_MODE_NORMAL &&
phy_data->phy_mode != PHY_MODE_NORMAL);
loop_reset = (LOOPBACK_OUT_OF(phy_data, efx, efx->phy_op->loopbacks) ||
LOOPBACK_CHANGED(phy_data, efx, 1 << LOOPBACK_GPHY));
if (loop_reset || phy_mode_change) {
- int rc;
-
- efx->phy_op->get_settings(efx, &ecmd);
+ tenxpress_special_reset(efx);
- if (loop_reset || phy_mode_change) {
- tenxpress_special_reset(efx);
-
- /* Reset XAUI if we were in 10G, and are staying
- * in 10G. If we're moving into and out of 10G
- * then xaui will be reset anyway */
- if (EFX_IS10G(efx))
- falcon_reset_xaui(efx);
- }
-
- rc = efx->phy_op->set_settings(efx, &ecmd);
- WARN_ON(rc);
+ /* Reset XAUI if we were in 10G, and are staying
+ * in 10G. If we're moving into and out of 10G
+ * then xaui will be reset anyway */
+ if (EFX_IS10G(efx))
+ falcon_reset_xaui(efx);
}
+ tenxpress_low_power(efx);
efx_mdio_transmit_disable(efx);
efx_mdio_phy_reconfigure(efx);
tenxpress_ext_loopback(efx);
+ efx_mdio_an_reconfigure(efx);
phy_data->loopback_mode = efx->loopback_mode;
phy_data->phy_mode = efx->phy_mode;
+
+ return 0;
}
static void
@@ -646,6 +638,9 @@ sfx7101_run_tests(struct efx_nic *efx, int *results, unsigned flags)
/* BIST is automatically run after a special software reset */
rc = tenxpress_special_reset(efx);
results[0] = rc ? -1 : 1;
+
+ efx_mdio_an_reconfigure(efx);
+
return rc;
}
@@ -663,12 +658,8 @@ static const char *const sft9001_test_names[] = {
static int sft9001_run_tests(struct efx_nic *efx, int *results, unsigned flags)
{
- struct ethtool_cmd ecmd;
int rc = 0, rc2, i, ctrl_reg, res_reg;
- if (flags & ETH_TEST_FL_OFFLINE)
- efx->phy_op->get_settings(efx, &ecmd);
-
/* Initialise cable diagnostic results to unknown failure */
for (i = 1; i < 9; ++i)
results[i] = -1;
@@ -720,9 +711,7 @@ out:
if (!rc)
rc = rc2;
- rc2 = efx->phy_op->set_settings(efx, &ecmd);
- if (!rc)
- rc = rc2;
+ efx_mdio_an_reconfigure(efx);
}
return rc;
@@ -753,7 +742,6 @@ tenxpress_get_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd)
mdio45_ethtool_gset_npage(&efx->mdio, ecmd, adv, lpa);
- ecmd->supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause;
if (efx->phy_type != PHY_TYPE_SFX7101) {
ecmd->supported |= (SUPPORTED_100baseT_Full |
SUPPORTED_1000baseT_Full);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.