Author: arybchik
Date: Thu Nov 29 06:42:49 2018
New Revision: 341190
URL: https://svnweb.freebsd.org/changeset/base/341190

Log:
  sfxge(4): support drop filters on EF10 family NICs
  
  Add support for filters which drop packets when forming MCDI request
  for a filter.
  
  Submitted by:   Roman Zhukov <roman.zhukov at oktetlabs.ru>
  Sponsored by:   Solarflare Communications, Inc.
  Differential Revision:  https://reviews.freebsd.org/D18221

Modified:
  head/sys/dev/sfxge/common/ef10_filter.c

Modified: head/sys/dev/sfxge/common/ef10_filter.c
==============================================================================
--- head/sys/dev/sfxge/common/ef10_filter.c     Thu Nov 29 06:42:38 2018        
(r341189)
+++ head/sys/dev/sfxge/common/ef10_filter.c     Thu Nov 29 06:42:49 2018        
(r341190)
@@ -238,10 +238,15 @@ efx_mcdi_filter_op_add(
            EVB_PORT_ID_ASSIGNED);
        MCDI_IN_SET_DWORD(req, FILTER_OP_EXT_IN_MATCH_FIELDS,
            match_flags);
-       MCDI_IN_SET_DWORD(req, FILTER_OP_EXT_IN_RX_DEST,
-           MC_CMD_FILTER_OP_EXT_IN_RX_DEST_HOST);
-       MCDI_IN_SET_DWORD(req, FILTER_OP_EXT_IN_RX_QUEUE,
-           spec->efs_dmaq_id);
+       if (spec->efs_dmaq_id == EFX_FILTER_SPEC_RX_DMAQ_ID_DROP) {
+               MCDI_IN_SET_DWORD(req, FILTER_OP_EXT_IN_RX_DEST,
+                   MC_CMD_FILTER_OP_EXT_IN_RX_DEST_DROP);
+       } else {
+               MCDI_IN_SET_DWORD(req, FILTER_OP_EXT_IN_RX_DEST,
+                   MC_CMD_FILTER_OP_EXT_IN_RX_DEST_HOST);
+               MCDI_IN_SET_DWORD(req, FILTER_OP_EXT_IN_RX_QUEUE,
+                   spec->efs_dmaq_id);
+       }
 
 #if EFSYS_OPT_RX_SCALE
        if (spec->efs_flags & EFX_FILTER_FLAG_RX_RSS) {
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