Author: arybchik Date: Sat Nov 24 18:13:34 2018 New Revision: 340908 URL: https://svnweb.freebsd.org/changeset/base/340908
Log: sfxge(4): allow to request inner classes for Rx packets If HW/FW supports tunnel encapsulations, Rx event may contain either inner or outer packet classes. By default outer classes are requested. Make it possible to request inner classes to have more information about packet type and allow to interpret inner frame checksum validation results correctly. Sponsored by: Solarflare Communications, Inc. Differential Revision: https://reviews.freebsd.org/D18133 Modified: head/sys/dev/sfxge/common/ef10_rx.c head/sys/dev/sfxge/common/efx.h Modified: head/sys/dev/sfxge/common/ef10_rx.c ============================================================================== --- head/sys/dev/sfxge/common/ef10_rx.c Sat Nov 24 18:13:21 2018 (r340907) +++ head/sys/dev/sfxge/common/ef10_rx.c Sat Nov 24 18:13:34 2018 (r340908) @@ -47,6 +47,7 @@ efx_mcdi_init_rxq( __in uint32_t instance, __in efsys_mem_t *esmp, __in boolean_t disable_scatter, + __in boolean_t want_inner_classes, __in uint32_t ps_bufsize) { efx_nic_cfg_t *encp = &(enp->en_nic_cfg); @@ -68,7 +69,8 @@ efx_mcdi_init_rxq( else dma_mode = MC_CMD_INIT_RXQ_EXT_IN_SINGLE_PACKET; - if (encp->enc_tunnel_encapsulations_supported != 0) { + if (encp->enc_tunnel_encapsulations_supported != 0 && + !want_inner_classes) { /* * WANT_OUTER_CLASSES can only be specified on hardware which * supports tunnel encapsulation offloads, even though it is @@ -962,6 +964,7 @@ ef10_rx_qcreate( efx_nic_cfg_t *encp = &(enp->en_nic_cfg); efx_rc_t rc; boolean_t disable_scatter; + boolean_t want_inner_classes; unsigned int ps_buf_size; _NOTE(ARGUNUSED(id, erp, type_data)) @@ -1040,8 +1043,14 @@ ef10_rx_qcreate( else disable_scatter = encp->enc_rx_disable_scatter_supported; + if (flags & EFX_RXQ_FLAG_INNER_CLASSES) + want_inner_classes = B_TRUE; + else + want_inner_classes = B_FALSE; + if ((rc = efx_mcdi_init_rxq(enp, ndescs, eep->ee_index, label, index, - esmp, disable_scatter, ps_buf_size)) != 0) + esmp, disable_scatter, want_inner_classes, + ps_buf_size)) != 0) goto fail7; erp->er_eep = eep; Modified: head/sys/dev/sfxge/common/efx.h ============================================================================== --- head/sys/dev/sfxge/common/efx.h Sat Nov 24 18:13:21 2018 (r340907) +++ head/sys/dev/sfxge/common/efx.h Sat Nov 24 18:13:34 2018 (r340908) @@ -2016,6 +2016,15 @@ typedef enum efx_rxq_type_e { */ #define EFX_RXQ_FLAG_NONE 0x0 #define EFX_RXQ_FLAG_SCATTER 0x1 +/* + * If tunnels are supported and Rx event can provide information about + * either outer or inner packet classes (e.g. SFN8xxx adapters with + * full-feature firmware variant running), outer classes are requested by + * default. However, if the driver supports tunnels, the flag allows to + * request inner classes which are required to be able to interpret inner + * Rx checksum offload results. + */ +#define EFX_RXQ_FLAG_INNER_CLASSES 0x2 extern __checkReturn efx_rc_t efx_rx_qcreate( _______________________________________________ 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"
