diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/sfc/tenxpress.c | 115 |
1 files changed, 107 insertions, 8 deletions
diff --git a/drivers/net/sfc/tenxpress.c b/drivers/net/sfc/tenxpress.c index bd204820e189..b9768760fae7 100644 --- a/drivers/net/sfc/tenxpress.c +++ b/drivers/net/sfc/tenxpress.c @@ -106,6 +106,25 @@ #define PMA_PMD_SPEED_LBN 4 #define PMA_PMD_SPEED_WIDTH 4 +/* Cable diagnostics - SFT9001 only */ +#define PMA_PMD_CDIAG_CTRL_REG 49213 +#define CDIAG_CTRL_IMMED_LBN 15 +#define CDIAG_CTRL_BRK_LINK_LBN 12 +#define CDIAG_CTRL_IN_PROG_LBN 11 +#define CDIAG_CTRL_LEN_UNIT_LBN 10 +#define CDIAG_CTRL_LEN_METRES 1 +#define PMA_PMD_CDIAG_RES_REG 49174 +#define CDIAG_RES_A_LBN 12 +#define CDIAG_RES_B_LBN 8 +#define CDIAG_RES_C_LBN 4 +#define CDIAG_RES_D_LBN 0 +#define CDIAG_RES_WIDTH 4 +#define CDIAG_RES_OPEN 2 +#define CDIAG_RES_OK 1 +#define CDIAG_RES_INVALID 0 +/* Set of 4 registers for pairs A-D */ +#define PMA_PMD_CDIAG_LEN_REG 49175 + /* Serdes control registers - SFT9001 only */ #define PMA_PMD_CSERDES_CTRL_REG 64258 /* Set the 156.25 MHz output to 312.5 MHz to drive Falcon's XMAC */ @@ -654,12 +673,12 @@ void tenxpress_phy_blink(struct efx_nic *efx, bool blink) PMA_PMD_LED_OVERR_REG, reg); } -static const char *const tenxpress_test_names[] = { +static const char *const sfx7101_test_names[] = { "bist" }; static int -tenxpress_run_tests(struct efx_nic *efx, int *results, unsigned flags) +sfx7101_run_tests(struct efx_nic *efx, int *results, unsigned flags) { int rc; @@ -672,6 +691,86 @@ tenxpress_run_tests(struct efx_nic *efx, int *results, unsigned flags) return rc; } +static const char *const sft9001_test_names[] = { + "bist", + "cable.pairA.status", + "cable.pairB.status", + "cable.pairC.status", + "cable.pairD.status", + "cable.pairA.length", + "cable.pairB.length", + "cable.pairC.length", + "cable.pairD.length", +}; + +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; + + efx->phy_op->get_settings(efx, &ecmd); + + /* Initialise cable diagnostic results to unknown failure */ + for (i = 1; i < 9; ++i) + results[i] = -1; + + /* 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. */ + 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)); + 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; + } + msleep(100); + } + res_reg = mdio_clause45_read(efx, efx->mii.phy_id, MDIO_MMD_PMAPMD, + PMA_PMD_CDIAG_RES_REG); + for (i = 0; i < 4; i++) { + int pair_res = + (res_reg >> (CDIAG_RES_A_LBN - i * CDIAG_RES_WIDTH)) + & ((1 << CDIAG_RES_WIDTH) - 1); + int len_reg = mdio_clause45_read(efx, efx->mii.phy_id, + MDIO_MMD_PMAPMD, + PMA_PMD_CDIAG_LEN_REG + i); + if (pair_res == CDIAG_RES_OK) + results[1 + i] = 1; + else if (pair_res == CDIAG_RES_INVALID) + results[1 + i] = -1; + else + results[1 + i] = -pair_res; + if (pair_res != CDIAG_RES_INVALID && + pair_res != CDIAG_RES_OPEN && + len_reg != 0xffff) + 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; + + return rc; +} + static u32 tenxpress_get_xnp_lpa(struct efx_nic *efx) { int phy = efx->mii.phy_id; @@ -784,9 +883,9 @@ struct efx_phy_operations falcon_sfx7101_phy_ops = { .clear_interrupt = efx_port_dummy_op_void, .get_settings = sfx7101_get_settings, .set_settings = mdio_clause45_set_settings, - .num_tests = ARRAY_SIZE(tenxpress_test_names), - .test_names = tenxpress_test_names, - .run_tests = tenxpress_run_tests, + .num_tests = ARRAY_SIZE(sfx7101_test_names), + .test_names = sfx7101_test_names, + .run_tests = sfx7101_run_tests, .mmds = TENXPRESS_REQUIRED_DEVS, .loopbacks = SFX7101_LOOPBACKS, }; @@ -801,9 +900,9 @@ struct efx_phy_operations falcon_sft9001_phy_ops = { .get_settings = sft9001_get_settings, .set_settings = sft9001_set_settings, .set_xnp_advertise = sft9001_set_xnp_advertise, - .num_tests = ARRAY_SIZE(tenxpress_test_names), - .test_names = tenxpress_test_names, - .run_tests = tenxpress_run_tests, + .num_tests = ARRAY_SIZE(sft9001_test_names), + .test_names = sft9001_test_names, + .run_tests = sft9001_run_tests, .mmds = TENXPRESS_REQUIRED_DEVS, .loopbacks = SFT9001_LOOPBACKS, }; |