diff options
| author | Sucheta Chakraborty <sucheta.chakraborty@qlogic.com> | 2010-08-19 05:08:32 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-08-19 16:52:42 -0700 |
| commit | 091754a1652fad24664f1357ee7616e66953dd30 (patch) | |
| tree | d5ae44dbb7164a678c76c57c9530ca8681de45b8 /drivers/net/qlcnic | |
| parent | d4066833bb1b35fefb1dd45eb2b10659d46bf151 (diff) | |
| download | talos-obmc-linux-091754a1652fad24664f1357ee7616e66953dd30.tar.gz talos-obmc-linux-091754a1652fad24664f1357ee7616e66953dd30.zip | |
qlcnic: rom lock recovery
Fw can get stuck while holding pci semaphore. Driver will not
be able to perform fw initialization, without this lock.
Release semaphore forcefully in that case.
Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/qlcnic')
| -rw-r--r-- | drivers/net/qlcnic/qlcnic_hw.c | 4 | ||||
| -rw-r--r-- | drivers/net/qlcnic/qlcnic_init.c | 14 |
2 files changed, 14 insertions, 4 deletions
diff --git a/drivers/net/qlcnic/qlcnic_hw.c b/drivers/net/qlcnic/qlcnic_hw.c index 9d40ce05cb17..5e6f4864df94 100644 --- a/drivers/net/qlcnic/qlcnic_hw.c +++ b/drivers/net/qlcnic/qlcnic_hw.c @@ -297,8 +297,8 @@ qlcnic_pcie_sem_lock(struct qlcnic_adapter *adapter, int sem, u32 id_reg) break; if (++timeout >= QLCNIC_PCIE_SEM_TIMEOUT) { dev_err(&adapter->pdev->dev, - "Failed to acquire sem=%d lock;reg_id=%d\n", - sem, id_reg); + "Failed to acquire sem=%d lock; holdby=%d\n", + sem, id_reg ? QLCRD32(adapter, id_reg) : -1); return -EIO; } msleep(1); diff --git a/drivers/net/qlcnic/qlcnic_init.c b/drivers/net/qlcnic/qlcnic_init.c index e7a399f90326..a174521daa63 100644 --- a/drivers/net/qlcnic/qlcnic_init.c +++ b/drivers/net/qlcnic/qlcnic_init.c @@ -928,15 +928,25 @@ qlcnic_get_bios_version(struct qlcnic_adapter *adapter) return (bios_ver << 16) + ((bios_ver >> 8) & 0xff00) + (bios_ver >> 24); } +static void qlcnic_rom_lock_recovery(struct qlcnic_adapter *adapter) +{ + if (qlcnic_pcie_sem_lock(adapter, 2, QLCNIC_ROM_LOCK_ID)) + dev_info(&adapter->pdev->dev, "Resetting rom_lock\n"); + + qlcnic_pcie_sem_unlock(adapter, 2); +} + int qlcnic_need_fw_reset(struct qlcnic_adapter *adapter) { u32 val, version, major, minor, build; - if (adapter->need_fw_reset) + if (qlcnic_check_fw_status(adapter)) { + qlcnic_rom_lock_recovery(adapter); return 1; + } - if (qlcnic_check_fw_status(adapter)) + if (adapter->need_fw_reset) return 1; /* check if we have got newer or different file firmware */ |
