diff options
| -rw-r--r-- | drivers/net/ixgbe/ixgbe_common.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/net/ixgbe/ixgbe_common.c b/drivers/net/ixgbe/ixgbe_common.c index c4730cd39b22..b894b42a741c 100644 --- a/drivers/net/ixgbe/ixgbe_common.c +++ b/drivers/net/ixgbe/ixgbe_common.c @@ -1189,6 +1189,28 @@ static s32 ixgbe_get_eeprom_semaphore(struct ixgbe_hw *hw) udelay(50); } + if (i == timeout) { + hw_dbg(hw, "Driver can't access the Eeprom - SMBI Semaphore " + "not granted.\n"); + /* + * this release is particularly important because our attempts + * above to get the semaphore may have succeeded, and if there + * was a timeout, we should unconditionally clear the semaphore + * bits to free the driver to make progress + */ + ixgbe_release_eeprom_semaphore(hw); + + udelay(50); + /* + * one last try + * If the SMBI bit is 0 when we read it, then the bit will be + * set and we have the semaphore + */ + swsm = IXGBE_READ_REG(hw, IXGBE_SWSM); + if (!(swsm & IXGBE_SWSM_SMBI)) + status = 0; + } + /* Now get the semaphore between SW/FW through the SWESMBI bit */ if (status == 0) { for (i = 0; i < timeout; i++) { |