sfc: Move the Solarflare drivers

Moves the Solarflare drivers into drivers/net/ethernet/sfc/ and
make the necessary Kconfig and Makefile changes.

CC: Steve Hodgson <shodgson@solarflare.com>
CC: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

1 files changed, 0 insertions, 494 deletions

diff --git a/drivers/net/sfc/tenxpress.c b/drivers/net/sfc/tenxpress.c
deleted file mode 100644
index 7b0fd89e7b85..000000000000
--- a/drivers/net/sfc/tenxpress.c
+++ /dev/null
@@ -1,494 +0,0 @@
-/****************************************************************************
- * Driver for Solarflare Solarstorm network controllers and boards
- * Copyright 2007-2011 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.
- */
-
-#include <linux/delay.h>
-#include <linux/rtnetlink.h>
-#include <linux/seq_file.h>
-#include <linux/slab.h>
-#include "efx.h"
-#include "mdio_10g.h"
-#include "nic.h"
-#include "phy.h"
-#include "workarounds.h"
-
-/* We expect these MMDs to be in the package. */
-#define TENXPRESS_REQUIRED_DEVS (MDIO_DEVS_PMAPMD	| \
-				 MDIO_DEVS_PCS		| \
-				 MDIO_DEVS_PHYXS	| \
-				 MDIO_DEVS_AN)
-
-#define SFX7101_LOOPBACKS ((1 << LOOPBACK_PHYXS) |	\
-			   (1 << LOOPBACK_PCS) |	\
-			   (1 << LOOPBACK_PMAPMD) |	\
-			   (1 << LOOPBACK_PHYXS_WS))
-
-/* We complain if we fail to see the link partner as 10G capable this many
- * times in a row (must be > 1 as sampling the autoneg. registers is racy)
- */
-#define MAX_BAD_LP_TRIES	(5)
-
-/* Extended control register */
-#define PMA_PMD_XCONTROL_REG	49152
-#define PMA_PMD_EXT_GMII_EN_LBN	1
-#define PMA_PMD_EXT_GMII_EN_WIDTH 1
-#define PMA_PMD_EXT_CLK_OUT_LBN	2
-#define PMA_PMD_EXT_CLK_OUT_WIDTH 1
-#define PMA_PMD_LNPGA_POWERDOWN_LBN 8
-#define PMA_PMD_LNPGA_POWERDOWN_WIDTH 1
-#define PMA_PMD_EXT_CLK312_WIDTH 1
-#define PMA_PMD_EXT_LPOWER_LBN  12
-#define PMA_PMD_EXT_LPOWER_WIDTH 1
-#define PMA_PMD_EXT_ROBUST_LBN	14
-#define PMA_PMD_EXT_ROBUST_WIDTH 1
-#define PMA_PMD_EXT_SSR_LBN	15
-#define PMA_PMD_EXT_SSR_WIDTH	1
-
-/* extended status register */
-#define PMA_PMD_XSTATUS_REG	49153
-#define PMA_PMD_XSTAT_MDIX_LBN	14
-#define PMA_PMD_XSTAT_FLP_LBN   (12)
-
-/* LED control register */
-#define PMA_PMD_LED_CTRL_REG	49159
-#define PMA_PMA_LED_ACTIVITY_LBN	(3)
-
-/* LED function override register */
-#define PMA_PMD_LED_OVERR_REG	49161
-/* Bit positions for different LEDs (there are more but not wired on SFE4001)*/
-#define PMA_PMD_LED_LINK_LBN	(0)
-#define PMA_PMD_LED_SPEED_LBN	(2)
-#define PMA_PMD_LED_TX_LBN	(4)
-#define PMA_PMD_LED_RX_LBN	(6)
-/* Override settings */
-#define	PMA_PMD_LED_AUTO	(0)	/* H/W control */
-#define	PMA_PMD_LED_ON		(1)
-#define	PMA_PMD_LED_OFF		(2)
-#define PMA_PMD_LED_FLASH	(3)
-#define PMA_PMD_LED_MASK	3
-/* All LEDs under hardware control */
-/* Green and Amber under hardware control, Red off */
-#define SFX7101_PMA_PMD_LED_DEFAULT (PMA_PMD_LED_OFF << PMA_PMD_LED_RX_LBN)
-
-#define PMA_PMD_SPEED_ENABLE_REG 49192
-#define PMA_PMD_100TX_ADV_LBN    1
-#define PMA_PMD_100TX_ADV_WIDTH  1
-#define PMA_PMD_1000T_ADV_LBN    2
-#define PMA_PMD_1000T_ADV_WIDTH  1
-#define PMA_PMD_10000T_ADV_LBN   3
-#define PMA_PMD_10000T_ADV_WIDTH 1
-#define PMA_PMD_SPEED_LBN        4
-#define PMA_PMD_SPEED_WIDTH      4
-
-/* Misc register defines */
-#define PCS_CLOCK_CTRL_REG	55297
-#define PLL312_RST_N_LBN 2
-
-#define PCS_SOFT_RST2_REG	55302
-#define SERDES_RST_N_LBN 13
-#define XGXS_RST_N_LBN 12
-
-#define	PCS_TEST_SELECT_REG	55303	/* PRM 10.5.8 */
-#define	CLK312_EN_LBN 3
-
-/* PHYXS registers */
-#define PHYXS_XCONTROL_REG	49152
-#define PHYXS_RESET_LBN		15
-#define PHYXS_RESET_WIDTH	1
-
-#define PHYXS_TEST1         (49162)
-#define LOOPBACK_NEAR_LBN   (8)
-#define LOOPBACK_NEAR_WIDTH (1)
-
-/* Boot status register */
-#define PCS_BOOT_STATUS_REG		53248
-#define PCS_BOOT_FATAL_ERROR_LBN	0
-#define PCS_BOOT_PROGRESS_LBN		1
-#define PCS_BOOT_PROGRESS_WIDTH		2
-#define PCS_BOOT_PROGRESS_INIT		0
-#define PCS_BOOT_PROGRESS_WAIT_MDIO	1
-#define PCS_BOOT_PROGRESS_CHECKSUM	2
-#define PCS_BOOT_PROGRESS_JUMP		3
-#define PCS_BOOT_DOWNLOAD_WAIT_LBN	3
-#define PCS_BOOT_CODE_STARTED_LBN	4
-
-/* 100M/1G PHY registers */
-#define GPHY_XCONTROL_REG	49152
-#define GPHY_ISOLATE_LBN	10
-#define GPHY_ISOLATE_WIDTH	1
-#define GPHY_DUPLEX_LBN	  	8
-#define GPHY_DUPLEX_WIDTH	1
-#define GPHY_LOOPBACK_NEAR_LBN	14
-#define GPHY_LOOPBACK_NEAR_WIDTH 1
-
-#define C22EXT_STATUS_REG       49153
-#define C22EXT_STATUS_LINK_LBN  2
-#define C22EXT_STATUS_LINK_WIDTH 1
-
-#define C22EXT_MSTSLV_CTRL			49161
-#define C22EXT_MSTSLV_CTRL_ADV_1000_HD_LBN	8
-#define C22EXT_MSTSLV_CTRL_ADV_1000_FD_LBN	9
-
-#define C22EXT_MSTSLV_STATUS			49162
-#define C22EXT_MSTSLV_STATUS_LP_1000_HD_LBN	10
-#define C22EXT_MSTSLV_STATUS_LP_1000_FD_LBN	11
-
-/* Time to wait between powering down the LNPGA and turning off the power
- * rails */
-#define LNPGA_PDOWN_WAIT	(HZ / 5)
-
-struct tenxpress_phy_data {
-	enum efx_loopback_mode loopback_mode;
-	enum efx_phy_mode phy_mode;
-	int bad_lp_tries;
-};
-
-static int tenxpress_init(struct efx_nic *efx)
-{
-	/* Enable 312.5 MHz clock */
-	efx_mdio_write(efx, MDIO_MMD_PCS, PCS_TEST_SELECT_REG,
-		       1 << CLK312_EN_LBN);
-
-	/* Set the LEDs up as: Green = Link, Amber = Link/Act, Red = Off */
-	efx_mdio_set_flag(efx, MDIO_MMD_PMAPMD, PMA_PMD_LED_CTRL_REG,
-			  1 << PMA_PMA_LED_ACTIVITY_LBN, true);
-	efx_mdio_write(efx, MDIO_MMD_PMAPMD, PMA_PMD_LED_OVERR_REG,
-		       SFX7101_PMA_PMD_LED_DEFAULT);
-
-	return 0;
-}
-
-static int tenxpress_phy_probe(struct efx_nic *efx)
-{
-	struct tenxpress_phy_data *phy_data;
-
-	/* Allocate phy private storage */
-	phy_data = kzalloc(sizeof(*phy_data), GFP_KERNEL);
-	if (!phy_data)
-		return -ENOMEM;
-	efx->phy_data = phy_data;
-	phy_data->phy_mode = efx->phy_mode;
-
-	efx->mdio.mmds = TENXPRESS_REQUIRED_DEVS;
-	efx->mdio.mode_support = MDIO_SUPPORTS_C45;
-
-	efx->loopback_modes = SFX7101_LOOPBACKS | FALCON_XMAC_LOOPBACKS;
-
-	efx->link_advertising = (ADVERTISED_TP | ADVERTISED_Autoneg |
-				 ADVERTISED_10000baseT_Full);
-
-	return 0;
-}
-
-static int tenxpress_phy_init(struct efx_nic *efx)
-{
-	int rc;
-
-	falcon_board(efx)->type->init_phy(efx);
-
-	if (!(efx->phy_mode & PHY_MODE_SPECIAL)) {
-		rc = efx_mdio_wait_reset_mmds(efx, TENXPRESS_REQUIRED_DEVS);
-		if (rc < 0)
-			return rc;
-
-		rc = efx_mdio_check_mmds(efx, TENXPRESS_REQUIRED_DEVS);
-		if (rc < 0)
-			return rc;
-	}
-
-	rc = tenxpress_init(efx);
-	if (rc < 0)
-		return rc;
-
-	/* Reinitialise flow control settings */
-	efx_link_set_wanted_fc(efx, efx->wanted_fc);
-	efx_mdio_an_reconfigure(efx);
-
-	schedule_timeout_uninterruptible(HZ / 5); /* 200ms */
-
-	/* Let XGXS and SerDes out of reset */
-	falcon_reset_xaui(efx);
-
-	return 0;
-}
-
-/* Perform a "special software reset" on the PHY. The caller is
- * responsible for saving and restoring the PHY hardware registers
- * properly, and masking/unmasking LASI */
-static int tenxpress_special_reset(struct efx_nic *efx)
-{
-	int rc, reg;
-
-	/* The XGMAC clock is driven from the SFX7101 312MHz clock, so
-	 * a special software reset can glitch the XGMAC sufficiently for stats
-	 * requests to fail. */
-	falcon_stop_nic_stats(efx);
-
-	/* Initiate reset */
-	reg = efx_mdio_read(efx, MDIO_MMD_PMAPMD, PMA_PMD_XCONTROL_REG);
-	reg |= (1 << PMA_PMD_EXT_SSR_LBN);
-	efx_mdio_write(efx, MDIO_MMD_PMAPMD, PMA_PMD_XCONTROL_REG, reg);
-
-	mdelay(200);
-
-	/* Wait for the blocks to come out of reset */
-	rc = efx_mdio_wait_reset_mmds(efx, TENXPRESS_REQUIRED_DEVS);
-	if (rc < 0)
-		goto out;
-
-	/* Try and reconfigure the device */
-	rc = tenxpress_init(efx);
-	if (rc < 0)
-		goto out;
-
-	/* Wait for the XGXS state machine to churn */
-	mdelay(10);
-out:
-	falcon_start_nic_stats(efx);
-	return rc;
-}
-
-static void sfx7101_check_bad_lp(struct efx_nic *efx, bool link_ok)
-{
-	struct tenxpress_phy_data *pd = efx->phy_data;
-	bool bad_lp;
-	int reg;
-
-	if (link_ok) {
-		bad_lp = false;
-	} else {
-		/* Check that AN has started but not completed. */
-		reg = efx_mdio_read(efx, MDIO_MMD_AN, MDIO_STAT1);
-		if (!(reg & MDIO_AN_STAT1_LPABLE))
-			return; /* LP status is unknown */
-		bad_lp = !(reg & MDIO_AN_STAT1_COMPLETE);
-		if (bad_lp)
-			pd->bad_lp_tries++;
-	}
-
-	/* Nothing to do if all is well and was previously so. */
-	if (!pd->bad_lp_tries)
-		return;
-
-	/* Use the RX (red) LED as an error indicator once we've seen AN
-	 * failure several times in a row, and also log a message. */
-	if (!bad_lp || pd->bad_lp_tries == MAX_BAD_LP_TRIES) {
-		reg = efx_mdio_read(efx, MDIO_MMD_PMAPMD,
-				    PMA_PMD_LED_OVERR_REG);
-		reg &= ~(PMA_PMD_LED_MASK << PMA_PMD_LED_RX_LBN);
-		if (!bad_lp) {
-			reg |= PMA_PMD_LED_OFF << PMA_PMD_LED_RX_LBN;
-		} else {
-			reg |= PMA_PMD_LED_FLASH << PMA_PMD_LED_RX_LBN;
-			netif_err(efx, link, efx->net_dev,
-				  "appears to be plugged into a port"
-				  " that is not 10GBASE-T capable. The PHY"
-				  " supports 10GBASE-T ONLY, so no link can"
-				  " be established\n");
-		}
-		efx_mdio_write(efx, MDIO_MMD_PMAPMD,
-			       PMA_PMD_LED_OVERR_REG, reg);
-		pd->bad_lp_tries = bad_lp;
-	}
-}
-
-static bool sfx7101_link_ok(struct efx_nic *efx)
-{
-	return efx_mdio_links_ok(efx,
-				 MDIO_DEVS_PMAPMD |
-				 MDIO_DEVS_PCS |
-				 MDIO_DEVS_PHYXS);
-}
-
-static void tenxpress_ext_loopback(struct efx_nic *efx)
-{
-	efx_mdio_set_flag(efx, MDIO_MMD_PHYXS, PHYXS_TEST1,
-			  1 << LOOPBACK_NEAR_LBN,
-			  efx->loopback_mode == LOOPBACK_PHYXS);
-}
-
-static void tenxpress_low_power(struct efx_nic *efx)
-{
-	efx_mdio_set_mmds_lpower(
-		efx, !!(efx->phy_mode & PHY_MODE_LOW_POWER),
-		TENXPRESS_REQUIRED_DEVS);
-}
-
-static int tenxpress_phy_reconfigure(struct efx_nic *efx)
-{
-	struct tenxpress_phy_data *phy_data = efx->phy_data;
-	bool phy_mode_change, loop_reset;
-
-	if (efx->phy_mode & (PHY_MODE_OFF | PHY_MODE_SPECIAL)) {
-		phy_data->phy_mode = efx->phy_mode;
-		return 0;
-	}
-
-	phy_mode_change = (efx->phy_mode == PHY_MODE_NORMAL &&
-			   phy_data->phy_mode != PHY_MODE_NORMAL);
-	loop_reset = (LOOPBACK_OUT_OF(phy_data, efx, LOOPBACKS_EXTERNAL(efx)) ||
-		      LOOPBACK_CHANGED(phy_data, efx, 1 << LOOPBACK_GPHY));
-
-	if (loop_reset || phy_mode_change) {
-		tenxpress_special_reset(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
-tenxpress_get_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd);
-
-/* Poll for link state changes */
-static bool tenxpress_phy_poll(struct efx_nic *efx)
-{
-	struct efx_link_state old_state = efx->link_state;
-
-	efx->link_state.up = sfx7101_link_ok(efx);
-	efx->link_state.speed = 10000;
-	efx->link_state.fd = true;
-	efx->link_state.fc = efx_mdio_get_pause(efx);
-
-	sfx7101_check_bad_lp(efx, efx->link_state.up);
-
-	return !efx_link_state_equal(&efx->link_state, &old_state);
-}
-
-static void sfx7101_phy_fini(struct efx_nic *efx)
-{
-	int reg;
-
-	/* Power down the LNPGA */
-	reg = (1 << PMA_PMD_LNPGA_POWERDOWN_LBN);
-	efx_mdio_write(efx, MDIO_MMD_PMAPMD, PMA_PMD_XCONTROL_REG, reg);
-
-	/* Waiting here ensures that the board fini, which can turn
-	 * off the power to the PHY, won't get run until the LNPGA
-	 * powerdown has been given long enough to complete. */
-	schedule_timeout_uninterruptible(LNPGA_PDOWN_WAIT); /* 200 ms */
-}
-
-static void tenxpress_phy_remove(struct efx_nic *efx)
-{
-	kfree(efx->phy_data);
-	efx->phy_data = NULL;
-}
-
-
-/* Override the RX, TX and link LEDs */
-void tenxpress_set_id_led(struct efx_nic *efx, enum efx_led_mode mode)
-{
-	int reg;
-
-	switch (mode) {
-	case EFX_LED_OFF:
-		reg = (PMA_PMD_LED_OFF << PMA_PMD_LED_TX_LBN) |
-			(PMA_PMD_LED_OFF << PMA_PMD_LED_RX_LBN) |
-			(PMA_PMD_LED_OFF << PMA_PMD_LED_LINK_LBN);
-		break;
-	case EFX_LED_ON:
-		reg = (PMA_PMD_LED_ON << PMA_PMD_LED_TX_LBN) |
-			(PMA_PMD_LED_ON << PMA_PMD_LED_RX_LBN) |
-			(PMA_PMD_LED_ON << PMA_PMD_LED_LINK_LBN);
-		break;
-	default:
-		reg = SFX7101_PMA_PMD_LED_DEFAULT;
-		break;
-	}
-
-	efx_mdio_write(efx, MDIO_MMD_PMAPMD, PMA_PMD_LED_OVERR_REG, reg);
-}
-
-static const char *const sfx7101_test_names[] = {
-	"bist"
-};
-
-static const char *sfx7101_test_name(struct efx_nic *efx, unsigned int index)
-{
-	if (index < ARRAY_SIZE(sfx7101_test_names))
-		return sfx7101_test_names[index];
-	return NULL;
-}
-
-static int
-sfx7101_run_tests(struct efx_nic *efx, int *results, unsigned flags)
-{
-	int rc;
-
-	if (!(flags & ETH_TEST_FL_OFFLINE))
-		return 0;
-
-	/* 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;
-}
-
-static void
-tenxpress_get_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd)
-{
-	u32 adv = 0, lpa = 0;
-	int reg;
-
-	reg = efx_mdio_read(efx, MDIO_MMD_AN, MDIO_AN_10GBT_CTRL);
-	if (reg & MDIO_AN_10GBT_CTRL_ADV10G)
-		adv |= ADVERTISED_10000baseT_Full;
-	reg = efx_mdio_read(efx, MDIO_MMD_AN, MDIO_AN_10GBT_STAT);
-	if (reg & MDIO_AN_10GBT_STAT_LP10G)
-		lpa |= ADVERTISED_10000baseT_Full;
-
-	mdio45_ethtool_gset_npage(&efx->mdio, ecmd, adv, lpa);
-
-	/* In loopback, the PHY automatically brings up the correct interface,
-	 * but doesn't advertise the correct speed. So override it */
-	if (LOOPBACK_EXTERNAL(efx))
-		ethtool_cmd_speed_set(ecmd, SPEED_10000);
-}
-
-static int tenxpress_set_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd)
-{
-	if (!ecmd->autoneg)
-		return -EINVAL;
-
-	return efx_mdio_set_settings(efx, ecmd);
-}
-
-static void sfx7101_set_npage_adv(struct efx_nic *efx, u32 advertising)
-{
-	efx_mdio_set_flag(efx, MDIO_MMD_AN, MDIO_AN_10GBT_CTRL,
-			  MDIO_AN_10GBT_CTRL_ADV10G,
-			  advertising & ADVERTISED_10000baseT_Full);
-}
-
-const struct efx_phy_operations falcon_sfx7101_phy_ops = {
-	.probe		  = tenxpress_phy_probe,
-	.init             = tenxpress_phy_init,
-	.reconfigure      = tenxpress_phy_reconfigure,
-	.poll             = tenxpress_phy_poll,
-	.fini             = sfx7101_phy_fini,
-	.remove		  = tenxpress_phy_remove,
-	.get_settings	  = tenxpress_get_settings,
-	.set_settings	  = tenxpress_set_settings,
-	.set_npage_adv    = sfx7101_set_npage_adv,
-	.test_alive	  = efx_mdio_test_alive,
-	.test_name	  = sfx7101_test_name,
-	.run_tests	  = sfx7101_run_tests,
-};