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authorBen Hutchings <bhutchings@solarflare.com>2009-02-27 16:04:07 +0300
committerDavid S. Miller <davem@davemloft.net>2009-03-02 14:15:02 +0300
commit22ef02c23a236cb825b13f3335ff05ef5072a03d (patch)
treee7f77a91ebbd0aa811c56b12ba6e408a27d03346 /drivers/net/sfc
parentc747583d19d5d5147a9f0eae480c1fdbc84c4252 (diff)
downloadlinux-22ef02c23a236cb825b13f3335ff05ef5072a03d.tar.xz
sfc: SFT9001: Include non-breaking cable diagnostics in online self-tests
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/sfc')
-rw-r--r--drivers/net/sfc/tenxpress.c45
1 files changed, 24 insertions, 21 deletions
diff --git a/drivers/net/sfc/tenxpress.c b/drivers/net/sfc/tenxpress.c
index 5b0f45166628..23583ba2e7eb 100644
--- a/drivers/net/sfc/tenxpress.c
+++ b/drivers/net/sfc/tenxpress.c
@@ -679,12 +679,10 @@ 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;
+ int rc = 0, rc2, i, ctrl_reg, res_reg;
- if (!(flags & ETH_TEST_FL_OFFLINE))
- return 0;
-
- 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 +690,22 @@ 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 +730,18 @@ 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;
}