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authorJacob Keller <jacob.e.keller@intel.com>2016-04-01 16:17:33 -0700
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2016-04-20 23:06:22 -0700
commita7a7783adabc3cc7599f7dbf97fcc3b0d44087b7 (patch)
tree49eb6a052470059213ab44d000a1f8aca4490772 /drivers/net/ethernet/intel/fm10k/fm10k_pf.h
parentfm10k: Fix multicast mode sync issues (diff)
downloadlinux-dev-a7a7783adabc3cc7599f7dbf97fcc3b0d44087b7.tar.xz
linux-dev-a7a7783adabc3cc7599f7dbf97fcc3b0d44087b7.zip
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_pf.h')
-rw-r--r--drivers/net/ethernet/intel/fm10k/fm10k_pf.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_pf.h b/drivers/net/ethernet/intel/fm10k/fm10k_pf.h
index b78210d06213..d4a34657b861 100644
--- a/drivers/net/ethernet/intel/fm10k/fm10k_pf.h
+++ b/drivers/net/ethernet/intel/fm10k/fm10k_pf.h
@@ -71,6 +71,8 @@ enum fm10k_pf_tlv_attr_id_v1 {
#define FM10K_MSG_UPDATE_PVID_PVID_SHIFT 16
#define FM10K_MSG_UPDATE_PVID_PVID_SIZE 16
+#define FM10K_MSG_ERR_PEP_NOT_SCHEDULED 280
+
/* The following data structures are overlayed directly onto TLV mailbox
* messages, and must not break 4 byte alignment. Ensure the structures line
* up correctly as per their TLV definition.