Date: Fri, 19 Feb 2016 21:58:14 +0000 (UTC) From: Eric Joyner <erj@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r295826 - head/sys/dev/ixl Message-ID: <201602192158.u1JLwEZg051556@repo.freebsd.org>
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Author: erj Date: Fri Feb 19 21:58:14 2016 New Revision: 295826 URL: https://svnweb.freebsd.org/changeset/base/295826 Log: ixl(4): Fix two important RSS bugs. - Change tc_mapping field to assign 64 queues instead of 16 to the PF's VSI; add comments to describe how this is done. - Set hash lut size to 512 when setting filter control; the lut size defaults to 128 if this isn't set. Differential Revision: https://reviews.freebsd.org/D5203 Reviewed by: gallatin Tested by: jeffrey.e.pieper@intel.com Sponsored by: Intel Corporation Modified: head/sys/dev/ixl/if_ixl.c Modified: head/sys/dev/ixl/if_ixl.c ============================================================================== --- head/sys/dev/ixl/if_ixl.c Fri Feb 19 21:53:12 2016 (r295825) +++ head/sys/dev/ixl/if_ixl.c Fri Feb 19 21:58:14 2016 (r295826) @@ -1175,6 +1175,7 @@ ixl_init_locked(struct ixl_pf *pf) #ifdef IXL_FDIR filter.enable_fdir = TRUE; #endif + filter.hash_lut_size = I40E_HASH_LUT_SIZE_512; if (i40e_set_filter_control(hw, &filter)) device_printf(dev, "set_filter_control() failed\n"); @@ -2758,8 +2759,17 @@ ixl_initialize_vsi(struct ixl_vsi *vsi) */ ctxt.info.valid_sections = I40E_AQ_VSI_PROP_QUEUE_MAP_VALID; ctxt.info.mapping_flags |= I40E_AQ_VSI_QUE_MAP_CONTIG; - ctxt.info.queue_mapping[0] = 0; - ctxt.info.tc_mapping[0] = 0x0800; + /* In contig mode, que_mapping[0] is first queue index used by this VSI */ + ctxt.info.queue_mapping[0] = 0; + /* + * This VSI will only use traffic class 0; start traffic class 0's + * queue allocation at queue 0, and assign it 64 (2^6) queues (though + * the driver may not use all of them). + */ + ctxt.info.tc_mapping[0] = ((0 << I40E_AQ_VSI_TC_QUE_OFFSET_SHIFT) + & I40E_AQ_VSI_TC_QUE_OFFSET_MASK) | + ((6 << I40E_AQ_VSI_TC_QUE_NUMBER_SHIFT) + & I40E_AQ_VSI_TC_QUE_NUMBER_MASK); /* Set VLAN receive stripping mode */ ctxt.info.valid_sections |= I40E_AQ_VSI_PROP_VLAN_VALID;
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