diff options
Diffstat (limited to 'drivers/net/sfc/xfp_phy.c')
| -rw-r--r-- | drivers/net/sfc/xfp_phy.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/drivers/net/sfc/xfp_phy.c b/drivers/net/sfc/xfp_phy.c index 66dd5bf1eaa9..f3684ad28887 100644 --- a/drivers/net/sfc/xfp_phy.c +++ b/drivers/net/sfc/xfp_phy.c @@ -24,6 +24,10 @@ MDIO_MMDREG_DEVS0_PMAPMD | \ MDIO_MMDREG_DEVS0_PHYXS) +#define XFP_LOOPBACKS ((1 << LOOPBACK_PCS) | \ + (1 << LOOPBACK_PMAPMD) | \ + (1 << LOOPBACK_NETWORK)) + /****************************************************************************/ /* Quake-specific MDIO registers */ #define MDIO_QUAKE_LED0_REG (0xD006) @@ -35,6 +39,10 @@ void xfp_set_led(struct efx_nic *p, int led, int mode) mode); } +struct xfp_phy_data { + int tx_disabled; +}; + #define XFP_MAX_RESET_TIME 500 #define XFP_RESET_WAIT 10 @@ -72,18 +80,33 @@ static int xfp_reset_phy(struct efx_nic *efx) static int xfp_phy_init(struct efx_nic *efx) { + struct xfp_phy_data *phy_data; u32 devid = mdio_clause45_read_id(efx, MDIO_MMD_PHYXS); int rc; + phy_data = kzalloc(sizeof(struct xfp_phy_data), GFP_KERNEL); + if (!phy_data) + return -ENOMEM; + efx->phy_data = phy_data; + EFX_INFO(efx, "XFP: PHY ID reg %x (OUI %x model %x revision" " %x)\n", devid, MDIO_ID_OUI(devid), MDIO_ID_MODEL(devid), MDIO_ID_REV(devid)); + phy_data->tx_disabled = efx->tx_disabled; + rc = xfp_reset_phy(efx); EFX_INFO(efx, "XFP: PHY init %s.\n", rc ? "failed" : "successful"); + if (rc < 0) + goto fail; + return 0; + + fail: + kfree(efx->phy_data); + efx->phy_data = NULL; return rc; } @@ -110,6 +133,16 @@ static int xfp_phy_check_hw(struct efx_nic *efx) static void xfp_phy_reconfigure(struct efx_nic *efx) { + struct xfp_phy_data *phy_data = efx->phy_data; + + /* Reset the PHY when moving from tx off to tx on */ + if (phy_data->tx_disabled && !efx->tx_disabled) + xfp_reset_phy(efx); + + mdio_clause45_transmit_disable(efx); + mdio_clause45_phy_reconfigure(efx); + + phy_data->tx_disabled = efx->tx_disabled; efx->link_up = xfp_link_ok(efx); efx->link_options = GM_LPA_10000FULL; } @@ -119,6 +152,10 @@ static void xfp_phy_fini(struct efx_nic *efx) { /* Clobber the LED if it was blinking */ efx->board_info.blink(efx, 0); + + /* Free the context block */ + kfree(efx->phy_data); + efx->phy_data = NULL; } struct efx_phy_operations falcon_xfp_phy_ops = { @@ -129,4 +166,5 @@ struct efx_phy_operations falcon_xfp_phy_ops = { .clear_interrupt = xfp_phy_clear_interrupt, .reset_xaui = efx_port_dummy_op_void, .mmds = XFP_REQUIRED_DEVS, + .loopbacks = XFP_LOOPBACKS, }; |