diff options
Diffstat (limited to 'drivers/net/sfc/xfp_phy.c')
| -rw-r--r-- | drivers/net/sfc/xfp_phy.c | 171 |
1 files changed, 0 insertions, 171 deletions
diff --git a/drivers/net/sfc/xfp_phy.c b/drivers/net/sfc/xfp_phy.c deleted file mode 100644 index 2d50b6ecf5f..00000000000 --- a/drivers/net/sfc/xfp_phy.c +++ /dev/null @@ -1,171 +0,0 @@ -/**************************************************************************** - * Driver for Solarflare Solarstorm network controllers and boards - * Copyright 2006-2008 Solarflare Communications Inc. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation, incorporated herein by reference. - */ -/* - * Driver for XFP optical PHYs (plus some support specific to the Quake 2022/32) - * See www.amcc.com for details (search for qt2032) - */ - -#include <linux/timer.h> -#include <linux/delay.h> -#include "efx.h" -#include "mdio_10g.h" -#include "xenpack.h" -#include "phy.h" -#include "falcon.h" - -#define XFP_REQUIRED_DEVS (MDIO_MMDREG_DEVS_PCS | \ - MDIO_MMDREG_DEVS_PMAPMD | \ - MDIO_MMDREG_DEVS_PHYXS) - -#define XFP_LOOPBACKS ((1 << LOOPBACK_PCS) | \ - (1 << LOOPBACK_PMAPMD) | \ - (1 << LOOPBACK_NETWORK)) - -/****************************************************************************/ -/* Quake-specific MDIO registers */ -#define MDIO_QUAKE_LED0_REG (0xD006) - -void xfp_set_led(struct efx_nic *p, int led, int mode) -{ - int addr = MDIO_QUAKE_LED0_REG + led; - mdio_clause45_write(p, p->mii.phy_id, MDIO_MMD_PMAPMD, addr, - mode); -} - -struct xfp_phy_data { - enum efx_phy_mode phy_mode; -}; - -#define XFP_MAX_RESET_TIME 500 -#define XFP_RESET_WAIT 10 - -/* Reset the PHYXS MMD. This is documented (for the Quake PHY) as doing - * a complete soft reset. - */ -static int xfp_reset_phy(struct efx_nic *efx) -{ - int rc; - - rc = mdio_clause45_reset_mmd(efx, MDIO_MMD_PHYXS, - XFP_MAX_RESET_TIME / XFP_RESET_WAIT, - XFP_RESET_WAIT); - if (rc < 0) - goto fail; - - /* Wait 250ms for the PHY to complete bootup */ - msleep(250); - - /* Check that all the MMDs we expect are present and responding. We - * expect faults on some if the link is down, but not on the PHY XS */ - rc = mdio_clause45_check_mmds(efx, XFP_REQUIRED_DEVS, - MDIO_MMDREG_DEVS_PHYXS); - if (rc < 0) - goto fail; - - efx->board_info.init_leds(efx); - - return rc; - - fail: - EFX_ERR(efx, "XFP: reset timed out!\n"); - return rc; -} - -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->phy_mode = efx->phy_mode; - - 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; -} - -static void xfp_phy_clear_interrupt(struct efx_nic *efx) -{ - xenpack_clear_lasi_irqs(efx); -} - -static int xfp_link_ok(struct efx_nic *efx) -{ - return mdio_clause45_links_ok(efx, XFP_REQUIRED_DEVS); -} - -static void xfp_phy_poll(struct efx_nic *efx) -{ - int link_up = xfp_link_ok(efx); - /* Simulate a PHY event if link state has changed */ - if (link_up != efx->link_up) - falcon_sim_phy_event(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 (!(efx->phy_mode & PHY_MODE_TX_DISABLED) && - (phy_data->phy_mode & PHY_MODE_TX_DISABLED)) - xfp_reset_phy(efx); - - mdio_clause45_transmit_disable(efx); - mdio_clause45_phy_reconfigure(efx); - - phy_data->phy_mode = efx->phy_mode; - efx->link_up = xfp_link_ok(efx); - efx->link_speed = 10000; - efx->link_fd = true; - efx->link_fc = efx->wanted_fc; -} - - -static void xfp_phy_fini(struct efx_nic *efx) -{ - /* Clobber the LED if it was blinking */ - efx->board_info.blink(efx, false); - - /* Free the context block */ - kfree(efx->phy_data); - efx->phy_data = NULL; -} - -struct efx_phy_operations falcon_xfp_phy_ops = { - .macs = EFX_XMAC, - .init = xfp_phy_init, - .reconfigure = xfp_phy_reconfigure, - .poll = xfp_phy_poll, - .fini = xfp_phy_fini, - .clear_interrupt = xfp_phy_clear_interrupt, - .get_settings = mdio_clause45_get_settings, - .set_settings = mdio_clause45_set_settings, - .mmds = XFP_REQUIRED_DEVS, - .loopbacks = XFP_LOOPBACKS, -}; |