sfc: Reinitialise and re-validate datapath caps after MC reboot
After an MC reboot, the datapath may be running a different firmware
variant and have different capabilities. It is critical that we know
the current capabilities so that we can pass valid flags to
MC_CMD_INIT_EVQ.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
diff --git a/drivers/net/ethernet/sfc/ef10.c b/drivers/net/ethernet/sfc/ef10.c
index a4956b8..9f18ae9 100644
--- a/drivers/net/ethernet/sfc/ef10.c
+++ b/drivers/net/ethernet/sfc/ef10.c
@@ -343,6 +343,13 @@
struct efx_ef10_nic_data *nic_data = efx->nic_data;
int rc;
+ if (nic_data->must_check_datapath_caps) {
+ rc = efx_ef10_init_datapath_caps(efx);
+ if (rc)
+ return rc;
+ nic_data->must_check_datapath_caps = false;
+ }
+
if (nic_data->must_realloc_vis) {
/* We cannot let the number of VIs change now */
rc = efx_ef10_alloc_vis(efx, nic_data->n_allocated_vis,
@@ -711,6 +718,9 @@
nic_data->must_restore_filters = true;
nic_data->rx_rss_context = EFX_EF10_RSS_CONTEXT_INVALID;
+ /* The datapath firmware might have been changed */
+ nic_data->must_check_datapath_caps = true;
+
/* MAC statistics have been cleared on the NIC; clear the local
* statistic that we update with efx_update_diff_stat().
*/
