Author: arybchik Date: Mon Dec 10 09:35:45 2018 New Revision: 341783 URL: https://svnweb.freebsd.org/changeset/base/341783
Log: sfxge(4): report support for Tx checksum op descriptors FreeBSD driver needs a patch to provide a means for packets which do not need checksum offload but have flow ID set to avoid hitting only the first Tx queue (which has been used for packets not needing checksum offload). This should be possible on Huntington, Medford or Medford2 chips since these support toggling checksum offload on any given queue dynamically by means of pushing option descriptors. The patch for FreeBSD driver will then need a means to figure out whether the feature can be used, and testing adapter family might not be a good solution. This patch adds a feature bit specifically to indicate support for checksum option descriptors. The new feature bits may have more users in future, apart from the mentioned FreeBSD patch. Submitted by: Ivan Malov <Ivan.Malov at oktetlabs.ru> Sponsored by: Solarflare Communications, Inc. MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D18388 Modified: head/sys/dev/sfxge/common/efx.h head/sys/dev/sfxge/common/efx_nic.c Modified: head/sys/dev/sfxge/common/efx.h ============================================================================== --- head/sys/dev/sfxge/common/efx.h Mon Dec 10 09:35:33 2018 (r341782) +++ head/sys/dev/sfxge/common/efx.h Mon Dec 10 09:35:45 2018 (r341783) @@ -1261,6 +1261,7 @@ efx_bist_stop( #define EFX_FEATURE_FW_ASSISTED_TSO 0x00001000 #define EFX_FEATURE_FW_ASSISTED_TSO_V2 0x00002000 #define EFX_FEATURE_PACKED_STREAM 0x00004000 +#define EFX_FEATURE_TXQ_CKSUM_OP_DESC 0x00008000 typedef enum efx_tunnel_protocol_e { EFX_TUNNEL_PROTOCOL_NONE = 0, Modified: head/sys/dev/sfxge/common/efx_nic.c ============================================================================== --- head/sys/dev/sfxge/common/efx_nic.c Mon Dec 10 09:35:33 2018 (r341782) +++ head/sys/dev/sfxge/common/efx_nic.c Mon Dec 10 09:35:45 2018 (r341783) @@ -257,7 +257,8 @@ efx_nic_create( EFX_FEATURE_PIO_BUFFERS | EFX_FEATURE_FW_ASSISTED_TSO | EFX_FEATURE_FW_ASSISTED_TSO_V2 | - EFX_FEATURE_PACKED_STREAM; + EFX_FEATURE_PACKED_STREAM | + EFX_FEATURE_TXQ_CKSUM_OP_DESC; break; #endif /* EFSYS_OPT_HUNTINGTON */ @@ -277,7 +278,8 @@ efx_nic_create( EFX_FEATURE_MCDI_DMA | EFX_FEATURE_PIO_BUFFERS | EFX_FEATURE_FW_ASSISTED_TSO_V2 | - EFX_FEATURE_PACKED_STREAM; + EFX_FEATURE_PACKED_STREAM | + EFX_FEATURE_TXQ_CKSUM_OP_DESC; break; #endif /* EFSYS_OPT_MEDFORD */ @@ -293,7 +295,8 @@ efx_nic_create( EFX_FEATURE_MCDI_DMA | EFX_FEATURE_PIO_BUFFERS | EFX_FEATURE_FW_ASSISTED_TSO_V2 | - EFX_FEATURE_PACKED_STREAM; + EFX_FEATURE_PACKED_STREAM | + EFX_FEATURE_TXQ_CKSUM_OP_DESC; break; #endif /* EFSYS_OPT_MEDFORD2 */ _______________________________________________ svn-src-head@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
