From: Andy Moreton Date: Fri, 28 Apr 2023 11:33:33 +0000 (+0100) Subject: sfc: Fix module EEPROM reporting for QSFP modules X-Git-Tag: v6.1.37~1362 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ab14de49e44f93abe8f6997879c1feb0b7a17b60;p=platform%2Fkernel%2Flinux-starfive.git sfc: Fix module EEPROM reporting for QSFP modules [ Upstream commit 281900a923d4c50df109b52a22ae3cdac150159b ] The sfc driver does not report QSFP module EEPROM contents correctly as only the first page is fetched from hardware. Commit 0e1a2a3e6e7d ("ethtool: Add SFF-8436 and SFF-8636 max EEPROM length definitions") added ETH_MODULE_SFF_8436_MAX_LEN for the overall size of the EEPROM info, so use that to report the full EEPROM contents. Fixes: 9b17010da57a ("sfc: Add ethtool -m support for QSFP modules") Signed-off-by: Andy Moreton Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- diff --git a/drivers/net/ethernet/sfc/mcdi_port_common.c b/drivers/net/ethernet/sfc/mcdi_port_common.c index 899cc16..0ab14f3 100644 --- a/drivers/net/ethernet/sfc/mcdi_port_common.c +++ b/drivers/net/ethernet/sfc/mcdi_port_common.c @@ -972,12 +972,15 @@ static u32 efx_mcdi_phy_module_type(struct efx_nic *efx) /* A QSFP+ NIC may actually have an SFP+ module attached. * The ID is page 0, byte 0. + * QSFP28 is of type SFF_8636, however, this is treated + * the same by ethtool, so we can also treat them the same. */ switch (efx_mcdi_phy_get_module_eeprom_byte(efx, 0, 0)) { - case 0x3: + case 0x3: /* SFP */ return MC_CMD_MEDIA_SFP_PLUS; - case 0xc: - case 0xd: + case 0xc: /* QSFP */ + case 0xd: /* QSFP+ */ + case 0x11: /* QSFP28 */ return MC_CMD_MEDIA_QSFP_PLUS; default: return 0; @@ -1075,7 +1078,7 @@ int efx_mcdi_phy_get_module_info(struct efx_nic *efx, struct ethtool_modinfo *mo case MC_CMD_MEDIA_QSFP_PLUS: modinfo->type = ETH_MODULE_SFF_8436; - modinfo->eeprom_len = ETH_MODULE_SFF_8436_LEN; + modinfo->eeprom_len = ETH_MODULE_SFF_8436_MAX_LEN; break; default: