diff options
| author |   Tomer Tayar <tomer.tayar@cavium.com> | 2019-01-28 19:27:55 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-01-28 10:58:41 -0800 |
| commit | 64515dc899df898991b2b7e56f69f56f014ea888 (patch) | |
| tree | b271e04771c8b662279bda328b35ba0bf4e22bc4 /drivers/net/ethernet/qlogic/qed/qed_hw.c | |
| parent | qed: Revise load sequence to avoid PCI errors (diff) | |
| download | linux-64515dc899df898991b2b7e56f69f56f014ea888.tar.xz linux-64515dc899df898991b2b7e56f69f56f014ea888.zip | |
qed: Add infrastructure for error detection and recovery
This patch adds the detection and handling of a parity error ("process kill
event"), including the update of the protocol drivers, and the prevention
of any HW access that will lead to device access towards the host while
recovery is in progress.
It also provides the means for the protocol drivers to trigger a recovery
process on their decision.
Signed-off-by: Tomer Tayar <tomer.tayar@cavium.com>
Signed-off-by: Ariel Elior <ariel.elior@cavium.com>
Signed-off-by: Michal Kalderon <michal.kalderon@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/qlogic/qed/qed_hw.c')
| -rw-r--r-- | drivers/net/ethernet/qlogic/qed/qed_hw.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/net/ethernet/qlogic/qed/qed_hw.c b/drivers/net/ethernet/qlogic/qed/qed_hw.c index 70504dcf4087..72ec1c6bdf70 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_hw.c +++ b/drivers/net/ethernet/qlogic/qed/qed_hw.c @@ -703,6 +703,17 @@ static int qed_dmae_execute_command(struct qed_hwfn *p_hwfn, int qed_status = 0; u32 offset = 0; + if (p_hwfn->cdev->recov_in_prog) { + DP_VERBOSE(p_hwfn, + NETIF_MSG_HW, + "Recovery is in progress. Avoid DMAE transaction [{src: addr 0x%llx, type %d}, {dst: addr 0x%llx, type %d}, size %d].\n", + src_addr, src_type, dst_addr, dst_type, + size_in_dwords); + + /* Let the flow complete w/o any error handling */ + return 0; + } + qed_dmae_opcode(p_hwfn, (src_type == QED_DMAE_ADDRESS_GRC), (dst_type == QED_DMAE_ADDRESS_GRC), |