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| author | Jacob Keller <jacob.e.keller@intel.com> | 2016-04-02 02:17:33 +0300 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2016-04-21 09:06:22 +0300 |
| commit | a7a7783adabc3cc7599f7dbf97fcc3b0d44087b7 (patch) | |
| tree | 49eb6a052470059213ab44d000a1f8aca4490772 /drivers/net/ethernet/intel/fm10k/fm10k.h | |
| parent | 8998763a7b57583ef2e07f68ea6a7d05bcfc1cfa (diff) | |
| download | linux-a7a7783adabc3cc7599f7dbf97fcc3b0d44087b7.tar.xz | |
fm10k: correctly handle LPORT_MAP error
Currently, any error responses from the switch manager after an
LPORT_MAP request are silently ignored. At most the mailbox message will
be reported as an error. This can result in unexpected behavior when the
switch manager has configured a port with zero bandwidth. Add support
for reading the fm10k_swapi_error structure from LPORT_MAP responses.
If the message contains the necessary TLV and has a non-zero error code,
report link down, clear the dglort_map, and delay the next
get_host_state call by a reasonable delay. Also log an error message
indicating that the LPORT_MAP request failed.
The delay ensures preventing an interrupt storm on the switch manager,
and reduces the number of mailbox messages we send in this scenario
drastically.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/fm10k/fm10k.h')
| -rw-r--r-- | drivers/net/ethernet/intel/fm10k/fm10k.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/fm10k/fm10k.h b/drivers/net/ethernet/intel/fm10k/fm10k.h index c21fa8699fc4..5efae40698cc 100644 --- a/drivers/net/ethernet/intel/fm10k/fm10k.h +++ b/drivers/net/ethernet/intel/fm10k/fm10k.h @@ -330,6 +330,7 @@ struct fm10k_intfc { unsigned long last_reset; unsigned long link_down_event; bool host_ready; + bool lport_map_failed; u32 reta[FM10K_RETA_SIZE]; u32 rssrk[FM10K_RSSRK_SIZE]; |