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path: root/drivers/net/sfc/tenxpress.c
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Diffstat (limited to 'drivers/net/sfc/tenxpress.c')
-rw-r--r--drivers/net/sfc/tenxpress.c141
1 files changed, 82 insertions, 59 deletions
diff --git a/drivers/net/sfc/tenxpress.c b/drivers/net/sfc/tenxpress.c
index f0efd246962c..e61dc4d4741c 100644
--- a/drivers/net/sfc/tenxpress.c
+++ b/drivers/net/sfc/tenxpress.c
@@ -8,6 +8,7 @@
*/
#include <linux/delay.h>
+#include <linux/rtnetlink.h>
#include <linux/seq_file.h>
#include "efx.h"
#include "mdio_10g.h"
@@ -157,14 +158,16 @@
#define PCS_10GBASET_BLKLK_WIDTH 1
/* Boot status register */
-#define PCS_BOOT_STATUS_REG 53248
-#define PCS_BOOT_FATAL_ERR_LBN (0)
-#define PCS_BOOT_PROGRESS_LBN (1)
-#define PCS_BOOT_PROGRESS_WIDTH (2)
-#define PCS_BOOT_COMPLETE_LBN (3)
-
-#define PCS_BOOT_MAX_DELAY (100)
-#define PCS_BOOT_POLL_DELAY (10)
+#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
@@ -229,40 +232,62 @@ static ssize_t set_phy_short_reach(struct device *dev,
static DEVICE_ATTR(phy_short_reach, 0644, show_phy_short_reach,
set_phy_short_reach);
-/* Check that the C166 has booted successfully */
-static int tenxpress_phy_check(struct efx_nic *efx)
+int sft9001_wait_boot(struct efx_nic *efx)
{
- int phy_id = efx->mii.phy_id;
- int count = PCS_BOOT_MAX_DELAY / PCS_BOOT_POLL_DELAY;
+ unsigned long timeout = jiffies + HZ + 1;
int boot_stat;
- /* Wait for the boot to complete (or not) */
- while (count) {
- boot_stat = mdio_clause45_read(efx, phy_id,
+ for (;;) {
+ boot_stat = mdio_clause45_read(efx, efx->mii.phy_id,
MDIO_MMD_PCS,
PCS_BOOT_STATUS_REG);
- if (boot_stat & (1 << PCS_BOOT_COMPLETE_LBN))
- break;
- count--;
- udelay(PCS_BOOT_POLL_DELAY);
- }
+ if (boot_stat >= 0) {
+ EFX_LOG(efx, "PHY boot status = %#x\n", boot_stat);
+ switch (boot_stat &
+ ((1 << PCS_BOOT_FATAL_ERROR_LBN) |
+ (3 << PCS_BOOT_PROGRESS_LBN) |
+ (1 << PCS_BOOT_DOWNLOAD_WAIT_LBN) |
+ (1 << PCS_BOOT_CODE_STARTED_LBN))) {
+ case ((1 << PCS_BOOT_FATAL_ERROR_LBN) |
+ (PCS_BOOT_PROGRESS_CHECKSUM <<
+ PCS_BOOT_PROGRESS_LBN)):
+ case ((1 << PCS_BOOT_FATAL_ERROR_LBN) |
+ (PCS_BOOT_PROGRESS_INIT <<
+ PCS_BOOT_PROGRESS_LBN) |
+ (1 << PCS_BOOT_DOWNLOAD_WAIT_LBN)):
+ return -EINVAL;
+ case ((PCS_BOOT_PROGRESS_WAIT_MDIO <<
+ PCS_BOOT_PROGRESS_LBN) |
+ (1 << PCS_BOOT_DOWNLOAD_WAIT_LBN)):
+ return (efx->phy_mode & PHY_MODE_SPECIAL) ?
+ 0 : -EIO;
+ case ((PCS_BOOT_PROGRESS_JUMP <<
+ PCS_BOOT_PROGRESS_LBN) |
+ (1 << PCS_BOOT_CODE_STARTED_LBN)):
+ case ((PCS_BOOT_PROGRESS_JUMP <<
+ PCS_BOOT_PROGRESS_LBN) |
+ (1 << PCS_BOOT_DOWNLOAD_WAIT_LBN) |
+ (1 << PCS_BOOT_CODE_STARTED_LBN)):
+ return (efx->phy_mode & PHY_MODE_SPECIAL) ?
+ -EIO : 0;
+ default:
+ if (boot_stat & (1 << PCS_BOOT_FATAL_ERROR_LBN))
+ return -EIO;
+ break;
+ }
+ }
- if (!count) {
- EFX_ERR(efx, "%s: PHY boot timed out. Last status "
- "%x\n", __func__,
- (boot_stat >> PCS_BOOT_PROGRESS_LBN) &
- ((1 << PCS_BOOT_PROGRESS_WIDTH) - 1));
- return -ETIMEDOUT;
- }
+ if (time_after_eq(jiffies, timeout))
+ return -ETIMEDOUT;
- return 0;
+ msleep(50);
+ }
}
static int tenxpress_init(struct efx_nic *efx)
{
int phy_id = efx->mii.phy_id;
int reg;
- int rc;
if (efx->phy_type == PHY_TYPE_SFX7101) {
/* Enable 312.5 MHz clock */
@@ -285,10 +310,6 @@ static int tenxpress_init(struct efx_nic *efx)
false);
}
- rc = tenxpress_phy_check(efx);
- if (rc < 0)
- return rc;
-
/* Set the LEDs up as: Green = Link, Amber = Link/Act, Red = Off */
if (efx->phy_type == PHY_TYPE_SFX7101) {
mdio_clause45_set_flag(efx, phy_id, MDIO_MMD_PMAPMD,
@@ -299,7 +320,7 @@ static int tenxpress_init(struct efx_nic *efx)
PMA_PMD_LED_OVERR_REG, PMA_PMD_LED_DEFAULT);
}
- return rc;
+ return 0;
}
static int tenxpress_phy_init(struct efx_nic *efx)
@@ -571,15 +592,14 @@ static void tenxpress_phy_reconfigure(struct efx_nic *efx)
static void tenxpress_phy_poll(struct efx_nic *efx)
{
struct tenxpress_phy_data *phy_data = efx->phy_data;
- bool change = false, link_ok;
- unsigned link_fc;
+ bool change = false;
if (efx->phy_type == PHY_TYPE_SFX7101) {
- link_ok = sfx7101_link_ok(efx);
+ bool link_ok = sfx7101_link_ok(efx);
if (link_ok != efx->link_up) {
change = true;
} else {
- link_fc = mdio_clause45_get_pause(efx);
+ unsigned int link_fc = mdio_clause45_get_pause(efx);
if (link_fc != efx->link_fc)
change = true;
}
@@ -679,12 +699,10 @@ static int sft9001_run_tests(struct efx_nic *efx, int *results, unsigned flags)
{
struct ethtool_cmd ecmd;
int phy_id = efx->mii.phy_id;
- int rc = 0, rc2, i, res_reg;
-
- if (!(flags & ETH_TEST_FL_OFFLINE))
- return 0;
+ int rc = 0, rc2, i, ctrl_reg, res_reg;
- efx->phy_op->get_settings(efx, &ecmd);
+ 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)
@@ -692,18 +710,22 @@ static int sft9001_run_tests(struct efx_nic *efx, int *results, unsigned flags)
/* Run cable diagnostics; wait up to 5 seconds for them to complete.
* A cable fault is not a self-test failure, but a timeout is. */
+ ctrl_reg = ((1 << CDIAG_CTRL_IMMED_LBN) |
+ (CDIAG_CTRL_LEN_METRES << CDIAG_CTRL_LEN_UNIT_LBN));
+ if (flags & ETH_TEST_FL_OFFLINE) {
+ /* Break the link in order to run full diagnostics. We
+ * must reset the PHY to resume normal service. */
+ ctrl_reg |= (1 << CDIAG_CTRL_BRK_LINK_LBN);
+ }
mdio_clause45_write(efx, phy_id, MDIO_MMD_PMAPMD,
- PMA_PMD_CDIAG_CTRL_REG,
- (1 << CDIAG_CTRL_IMMED_LBN) |
- (1 << CDIAG_CTRL_BRK_LINK_LBN) |
- (CDIAG_CTRL_LEN_METRES << CDIAG_CTRL_LEN_UNIT_LBN));
+ PMA_PMD_CDIAG_CTRL_REG, ctrl_reg);
i = 0;
while (mdio_clause45_read(efx, phy_id, MDIO_MMD_PMAPMD,
PMA_PMD_CDIAG_CTRL_REG) &
(1 << CDIAG_CTRL_IN_PROG_LBN)) {
if (++i == 50) {
rc = -ETIMEDOUT;
- goto reset;
+ goto out;
}
msleep(100);
}
@@ -728,17 +750,18 @@ static int sft9001_run_tests(struct efx_nic *efx, int *results, unsigned flags)
results[5 + i] = len_reg;
}
- /* We must reset to exit cable diagnostic mode. The BIST will
- * also run when we do this. */
-reset:
- rc2 = tenxpress_special_reset(efx);
- results[0] = rc2 ? -1 : 1;
- if (!rc)
- rc = rc2;
-
- rc2 = efx->phy_op->set_settings(efx, &ecmd);
- if (!rc)
- rc = rc2;
+out:
+ if (flags & ETH_TEST_FL_OFFLINE) {
+ /* Reset, running the BIST and then resuming normal service. */
+ rc2 = tenxpress_special_reset(efx);
+ results[0] = rc2 ? -1 : 1;
+ if (!rc)
+ rc = rc2;
+
+ rc2 = efx->phy_op->set_settings(efx, &ecmd);
+ if (!rc)
+ rc = rc2;
+ }
return rc;
}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.