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bnx2x: Fix unrecognized SFP+ module after driver is loaded

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When SFP+ module is plugged in after driver is already loaded, it may not be
recognized, so set SFP module recognition time up to 300ms, without resetting
the module power in the middle.

Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Barak Witkowski <barak@broadcom.com>
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yaniv Rosner 2012-10-31 05:46:56 +00:00 committed by David S. Miller
parent 4978140c38
commit e82041df5d
1 changed files with 15 additions and 7 deletions
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22
drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
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@ -7634,7 +7634,7 @@ static void bnx2x_warpcore_power_module(struct link_params *params,
static int bnx2x_warpcore_read_sfp_module_eeprom(struct bnx2x_phy *phy,
struct link_params *params,
u16 addr, u8 byte_cnt,
u8 *o_buf)
u8 *o_buf, u8 is_init)
{
int rc = 0;
u8 i, j = 0, cnt = 0;
@ -7651,10 +7651,10 @@ static int bnx2x_warpcore_read_sfp_module_eeprom(struct bnx2x_phy *phy,
/* 4 byte aligned address */
addr32 = addr & (~0x3);
do {
if (cnt == I2C_WA_PWR_ITER) {
if ((!is_init) && (cnt == I2C_WA_PWR_ITER)) {
bnx2x_warpcore_power_module(params, phy, 0);
/* Note that 100us are not enough here */
usleep_range(1000,1000);
usleep_range(1000, 2000);
bnx2x_warpcore_power_module(params, phy, 1);
}
rc = bnx2x_bsc_read(params, phy, 0xa0, addr32, 0, byte_cnt,
@ -7774,7 +7774,7 @@ int bnx2x_read_sfp_module_eeprom(struct bnx2x_phy *phy,
break;
case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT:
rc = bnx2x_warpcore_read_sfp_module_eeprom(phy, params, addr,
byte_cnt, o_buf);
byte_cnt, o_buf, 0);
break;
}
return rc;
@ -7978,6 +7978,7 @@ static int bnx2x_wait_for_sfp_module_initialized(struct bnx2x_phy *phy,
{
u8 val;
int rc;
struct bnx2x *bp = params->bp;
u16 timeout;
/* Initialization time after hot-plug may take up to 300ms for
@ -7985,8 +7986,14 @@ static int bnx2x_wait_for_sfp_module_initialized(struct bnx2x_phy *phy,
*/
for (timeout = 0; timeout < 60; timeout++) {
if (bnx2x_read_sfp_module_eeprom(phy, params, 1, 1, &val)
== 0) {
if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT)
rc = bnx2x_warpcore_read_sfp_module_eeprom(phy,
params, 1,
1, &val, 1);
else
rc = bnx2x_read_sfp_module_eeprom(phy, params, 1, 1,
&val);
if (rc == 0) {
DP(NETIF_MSG_LINK,
"SFP+ module initialization took %d ms\n",
timeout * 5);
@ -7994,7 +8001,8 @@ static int bnx2x_wait_for_sfp_module_initialized(struct bnx2x_phy *phy,
}
usleep_range(5000, 10000);
}
return -EINVAL;
rc = bnx2x_read_sfp_module_eeprom(phy, params, 1, 1, &val);
return rc;
}
static void bnx2x_8727_power_module(struct bnx2x *bp,