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09b086eeca
Ignore TX_FAULT signal on certain cheap copper/TP gigabit Ethernet SFP modules. Signed-off-by: Daniel Golle <daniel@makrotopia.org>
48 lines
1.5 KiB
Diff
48 lines
1.5 KiB
Diff
--- a/drivers/net/phy/sfp.c
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+++ b/drivers/net/phy/sfp.c
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@@ -1803,6 +1803,7 @@ static int sfp_sm_mod_probe(struct sfp *
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struct sfp_eeprom_id id;
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bool cotsworks_sfbg;
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bool cotsworks;
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+ bool oem_ge_t;
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u8 check;
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int ret;
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@@ -1851,6 +1852,10 @@ static int sfp_sm_mod_probe(struct sfp *
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}
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}
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+ /* Some cheap SFP-GE-T modules always indicate TX fault */
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+ oem_ge_t = !memcmp(id.base.vendor_name, "OEM ", 16) &&
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+ !memcmp(id.base.vendor_pn, "SFP-GE-T ", 12);
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+
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/* Cotsworks do not seem to update the checksums when they
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* do the final programming with the final module part number,
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* serial number and date code.
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@@ -1946,8 +1951,8 @@ static int sfp_sm_mod_probe(struct sfp *
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else
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sfp->module_t_start_up = T_START_UP;
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- if (!memcmp(id.base.vendor_name, "HUAWEI ", 16) &&
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- !memcmp(id.base.vendor_pn, "MA5671A ", 16))
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+ if ((!memcmp(id.base.vendor_name, "HUAWEI ", 16) &&
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+ !memcmp(id.base.vendor_pn, "MA5671A ", 16)) || oem_ge_t)
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sfp->tx_fault_ignore = true;
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else
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sfp->tx_fault_ignore = false;
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@@ -2404,10 +2409,12 @@ static void sfp_check_state(struct sfp *
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mutex_lock(&sfp->st_mutex);
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state = sfp_get_state(sfp);
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changed = state ^ sfp->state;
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- if (sfp->tx_fault_ignore)
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+ if (sfp->tx_fault_ignore) {
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changed &= SFP_F_PRESENT | SFP_F_LOS;
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- else
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+ state &= ~SFP_F_TX_FAULT;
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+ } else {
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changed &= SFP_F_PRESENT | SFP_F_LOS | SFP_F_TX_FAULT;
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+ }
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for (i = 0; i < GPIO_MAX; i++)
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if (changed & BIT(i))
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