sfc: Rename 'xfp' file and functions to reflect reality

The 'XFP' driver is really a driver for the QT2022C2 and QT2025C PHYs,
covering both more and less than XFP.  Rename its functions and
constants to reflect reality and to reduce namespace pollution when
sfc is a built-in driver.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 0 insertions, 250 deletions

diff --git a/drivers/net/sfc/xfp_phy.c b/drivers/net/sfc/xfp_phy.c
deleted file mode 100644
index e6b3d5eaddba..000000000000
--- a/drivers/net/sfc/xfp_phy.c
+++ /dev/null
@@ -1,250 +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 SFP+ and XFP optical PHYs plus some support specific to the
- * AMCC QT20xx adapters; see www.amcc.com for details
- */
-
-#include <linux/timer.h>
-#include <linux/delay.h>
-#include "efx.h"
-#include "mdio_10g.h"
-#include "phy.h"
-#include "falcon.h"
-
-#define XFP_REQUIRED_DEVS (MDIO_DEVS_PCS |	\
-			   MDIO_DEVS_PMAPMD |	\
-			   MDIO_DEVS_PHYXS)
-
-#define XFP_LOOPBACKS ((1 << LOOPBACK_PCS) |		\
-		       (1 << LOOPBACK_PMAPMD) |		\
-		       (1 << LOOPBACK_NETWORK))
-
-/****************************************************************************/
-/* Quake-specific MDIO registers */
-#define MDIO_QUAKE_LED0_REG	(0xD006)
-
-/* QT2025C only */
-#define PCS_FW_HEARTBEAT_REG	0xd7ee
-#define PCS_FW_HEARTB_LBN	0
-#define PCS_FW_HEARTB_WIDTH	8
-#define PCS_UC8051_STATUS_REG	0xd7fd
-#define PCS_UC_STATUS_LBN	0
-#define PCS_UC_STATUS_WIDTH	8
-#define PCS_UC_STATUS_FW_SAVE	0x20
-#define PMA_PMD_FTX_CTRL2_REG	0xc309
-#define PMA_PMD_FTX_STATIC_LBN	13
-#define PMA_PMD_VEND1_REG	0xc001
-#define PMA_PMD_VEND1_LBTXD_LBN	15
-#define PCS_VEND1_REG	   	0xc000
-#define PCS_VEND1_LBTXD_LBN	5
-
-void xfp_set_led(struct efx_nic *p, int led, int mode)
-{
-	int addr = MDIO_QUAKE_LED0_REG + led;
-	efx_mdio_write(p, 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
-
-static int qt2025c_wait_reset(struct efx_nic *efx)
-{
-	unsigned long timeout = jiffies + 10 * HZ;
-	int reg, old_counter = 0;
-
-	/* Wait for firmware heartbeat to start */
-	for (;;) {
-		int counter;
-		reg = efx_mdio_read(efx, MDIO_MMD_PCS, PCS_FW_HEARTBEAT_REG);
-		if (reg < 0)
-			return reg;
-		counter = ((reg >> PCS_FW_HEARTB_LBN) &
-			    ((1 << PCS_FW_HEARTB_WIDTH) - 1));
-		if (old_counter == 0)
-			old_counter = counter;
-		else if (counter != old_counter)
-			break;
-		if (time_after(jiffies, timeout))
-			return -ETIMEDOUT;
-		msleep(10);
-	}
-
-	/* Wait for firmware status to look good */
-	for (;;) {
-		reg = efx_mdio_read(efx, MDIO_MMD_PCS, PCS_UC8051_STATUS_REG);
-		if (reg < 0)
-			return reg;
-		if ((reg &
-		     ((1 << PCS_UC_STATUS_WIDTH) - 1) << PCS_UC_STATUS_LBN) >=
-		    PCS_UC_STATUS_FW_SAVE)
-			break;
-		if (time_after(jiffies, timeout))
-			return -ETIMEDOUT;
-		msleep(100);
-	}
-
-	return 0;
-}
-
-static int xfp_reset_phy(struct efx_nic *efx)
-{
-	int rc;
-
-	if (efx->phy_type == PHY_TYPE_QT2025C) {
-		/* Wait for the reset triggered by falcon_reset_hw()
-		 * to complete */
-		rc = qt2025c_wait_reset(efx);
-		if (rc < 0)
-			goto fail;
-	} else {
-		/* Reset the PHYXS MMD. This is documented as doing
-		 * a complete soft reset. */
-		rc = efx_mdio_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 = efx_mdio_check_mmds(efx, XFP_REQUIRED_DEVS, MDIO_DEVS_PHYXS);
-	if (rc < 0)
-		goto fail;
-
-	efx->board_info.init_leds(efx);
-
-	return rc;
-
- fail:
-	EFX_ERR(efx, "PHY reset timed out\n");
-	return rc;
-}
-
-static int xfp_phy_init(struct efx_nic *efx)
-{
-	struct xfp_phy_data *phy_data;
-	u32 devid = efx_mdio_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, "PHY ID reg %x (OUI %06x model %02x revision %x)\n",
-		 devid, efx_mdio_id_oui(devid), efx_mdio_id_model(devid),
-		 efx_mdio_id_rev(devid));
-
-	phy_data->phy_mode = efx->phy_mode;
-
-	rc = xfp_reset_phy(efx);
-
-	EFX_INFO(efx, "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)
-{
-	/* Read to clear link status alarm */
-	efx_mdio_read(efx, MDIO_MMD_PMAPMD, MDIO_PMA_LASI_STAT);
-}
-
-static int xfp_link_ok(struct efx_nic *efx)
-{
-	return efx_mdio_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;
-
-	if (efx->phy_type == PHY_TYPE_QT2025C) {
-		/* There are several different register bits which can
-		 * disable TX (and save power) on direct-attach cables
-		 * or optical transceivers, varying somewhat between
-		 * firmware versions.  Only 'static mode' appears to
-		 * cover everything. */
-		mdio_set_flag(
-			&efx->mdio, efx->mdio.prtad, MDIO_MMD_PMAPMD,
-			PMA_PMD_FTX_CTRL2_REG, 1 << PMA_PMD_FTX_STATIC_LBN,
-			efx->phy_mode & PHY_MODE_TX_DISABLED ||
-			efx->phy_mode & PHY_MODE_LOW_POWER ||
-			efx->loopback_mode == LOOPBACK_PCS ||
-			efx->loopback_mode == LOOPBACK_PMAPMD);
-	} else {
-		/* 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);
-
-		efx_mdio_transmit_disable(efx);
-	}
-
-	efx_mdio_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_get_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd)
-{
-	mdio45_ethtool_gset(&efx->mdio, ecmd);
-}
-
-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    = xfp_phy_get_settings,
-	.set_settings	 = efx_mdio_set_settings,
-	.mmds            = XFP_REQUIRED_DEVS,
-	.loopbacks       = XFP_LOOPBACKS,
-};