Commit 170a9e34 authored by Raju Rangoju's avatar Raju Rangoju Committed by Jakub Kicinski

amd-xgbe: add the bit rate quirk for Molex cables

The offset 12 (bit-rate) of EEPROM SFP DAC (passive) cables is expected
to be in the range 0x64 to 0x68. However, the 5 meter and 7 meter Molex
passive cables have the rate ceiling 0x78 at offset 12.

Add a quirk for Molex passive cables to extend the rate ceiling to 0x78.

Fixes: abf0a1c2 ("amd-xgbe: Add support for SFP+ modules")
Signed-off-by: default avatarRaju Rangoju <Raju.Rangoju@amd.com>
Acked-by: default avatarTom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 09c5f6bf
......@@ -239,6 +239,7 @@ enum xgbe_sfp_speed {
#define XGBE_SFP_BASE_BR_1GBE_MAX 0x0d
#define XGBE_SFP_BASE_BR_10GBE_MIN 0x64
#define XGBE_SFP_BASE_BR_10GBE_MAX 0x68
#define XGBE_MOLEX_SFP_BASE_BR_10GBE_MAX 0x78
#define XGBE_SFP_BASE_CU_CABLE_LEN 18
......@@ -284,6 +285,8 @@ struct xgbe_sfp_eeprom {
#define XGBE_BEL_FUSE_VENDOR "BEL-FUSE "
#define XGBE_BEL_FUSE_PARTNO "1GBT-SFP06 "
#define XGBE_MOLEX_VENDOR "Molex Inc. "
struct xgbe_sfp_ascii {
union {
char vendor[XGBE_SFP_BASE_VENDOR_NAME_LEN + 1];
......@@ -834,7 +837,11 @@ static bool xgbe_phy_sfp_bit_rate(struct xgbe_sfp_eeprom *sfp_eeprom,
break;
case XGBE_SFP_SPEED_10000:
min = XGBE_SFP_BASE_BR_10GBE_MIN;
max = XGBE_SFP_BASE_BR_10GBE_MAX;
if (memcmp(&sfp_eeprom->base[XGBE_SFP_BASE_VENDOR_NAME],
XGBE_MOLEX_VENDOR, XGBE_SFP_BASE_VENDOR_NAME_LEN) == 0)
max = XGBE_MOLEX_SFP_BASE_BR_10GBE_MAX;
else
max = XGBE_SFP_BASE_BR_10GBE_MAX;
break;
default:
return false;
......
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