diff options
| author | Chien Tung | 2008-04-23 20:55:45 +0200 |
|---|---|---|
| committer | Roland Dreier | 2008-04-23 20:55:45 +0200 |
| commit | bc5698f3ecc9587e1edb343a2878f8d228c49e0e (patch) | |
| tree | 3f16097356e04c4b023d31ee920e6804fe57ecce /drivers/infiniband/hw/nes/nes_hw.c | |
| parent | RDMA/nes: Print IPv4 addresses in a readable format (diff) | |
| download | kernel-qcow2-linux-bc5698f3ecc9587e1edb343a2878f8d228c49e0e.tar.gz kernel-qcow2-linux-bc5698f3ecc9587e1edb343a2878f8d228c49e0e.tar.xz kernel-qcow2-linux-bc5698f3ecc9587e1edb343a2878f8d228c49e0e.zip | |
RDMA/nes: Fix adapter reset after PXE boot
After PXE boot, the iw_nes driver does a full reset to ensure the card
is in a clean state. However, it doesn't wait for firmware to
complete its work before issuing a port reset to enable the ports,
which leads to problems bringing up the ports.
The solution is to wait for firmware to complete its work before
proceeding with port reset.
This bug was flagged by Roland Dreier <rolandd@cisco.com>.
Cc: <stable@kernel.org>
Signed-off-by: Chien Tung <ctung@neteffect.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/hw/nes/nes_hw.c')
| -rw-r--r-- | drivers/infiniband/hw/nes/nes_hw.c | 20 |
1 files changed, 9 insertions, 11 deletions
diff --git a/drivers/infiniband/hw/nes/nes_hw.c b/drivers/infiniband/hw/nes/nes_hw.c index aa53aab91bf8..08964cc7e98a 100644 --- a/drivers/infiniband/hw/nes/nes_hw.c +++ b/drivers/infiniband/hw/nes/nes_hw.c @@ -636,6 +636,15 @@ static unsigned int nes_reset_adapter_ne020(struct nes_device *nesdev, u8 *OneG_ nes_debug(NES_DBG_INIT, "Did not see full soft reset done.\n"); return 0; } + + i = 0; + while ((nes_read_indexed(nesdev, NES_IDX_INT_CPU_STATUS) != 0x80) && i++ < 10000) + mdelay(1); + if (i >= 10000) { + printk(KERN_ERR PFX "Internal CPU not ready, status = %02X\n", + nes_read_indexed(nesdev, NES_IDX_INT_CPU_STATUS)); + return 0; + } } /* port reset */ @@ -684,17 +693,6 @@ static unsigned int nes_reset_adapter_ne020(struct nes_device *nesdev, u8 *OneG_ } } - - - i = 0; - while ((nes_read_indexed(nesdev, NES_IDX_INT_CPU_STATUS) != 0x80) && i++ < 10000) - mdelay(1); - if (i >= 10000) { - printk(KERN_ERR PFX "Internal CPU not ready, status = %02X\n", - nes_read_indexed(nesdev, NES_IDX_INT_CPU_STATUS)); - return 0; - } - return port_count; } |