From 1acefc9aedb3179fc9add0a21fa62c0aca08efc4 Mon Sep 17 00:00:00 2001 From: Michael Chan Date: Sat, 23 Nov 2019 22:30:45 -0500 Subject: bnxt_en: Assign more RSS context resources to the VFs. The driver currently only assignes 1 RSS context to each VF. This works for the Linux VF driver. But other drivers, such as DPDK, can make use of additional RSS contexts. Modify the code to divide up and assign RSS contexts to VFs just like other resources. Signed-off-by: Michael Chan Signed-off-by: Jakub Kicinski --- drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c index f6f3454d6059..2aba1e02a8f4 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c @@ -515,6 +515,7 @@ static int bnxt_hwrm_func_vf_resc_cfg(struct bnxt *bp, int num_vfs, bool reset) struct bnxt_pf_info *pf = &bp->pf; int i, rc = 0, min = 1; u16 vf_msix = 0; + u16 vf_rss; bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_VF_RESOURCE_CFG, -1, -1); @@ -533,9 +534,9 @@ static int bnxt_hwrm_func_vf_resc_cfg(struct bnxt *bp, int num_vfs, bool reset) vf_tx_rings = hw_resc->max_tx_rings - bp->tx_nr_rings; vf_vnics = hw_resc->max_vnics - bp->nr_vnics; vf_vnics = min_t(u16, vf_vnics, vf_rx_rings); + vf_rss = hw_resc->max_rsscos_ctxs - bp->rsscos_nr_ctxs; req.min_rsscos_ctx = cpu_to_le16(BNXT_VF_MIN_RSS_CTX); - req.max_rsscos_ctx = cpu_to_le16(BNXT_VF_MAX_RSS_CTX); if (pf->vf_resv_strategy == BNXT_VF_RESV_STRATEGY_MINIMAL_STATIC) { min = 0; req.min_rsscos_ctx = cpu_to_le16(min); @@ -557,6 +558,7 @@ static int bnxt_hwrm_func_vf_resc_cfg(struct bnxt *bp, int num_vfs, bool reset) vf_vnics /= num_vfs; vf_stat_ctx /= num_vfs; vf_ring_grps /= num_vfs; + vf_rss /= num_vfs; req.min_cmpl_rings = cpu_to_le16(vf_cp_rings); req.min_tx_rings = cpu_to_le16(vf_tx_rings); @@ -565,6 +567,7 @@ static int bnxt_hwrm_func_vf_resc_cfg(struct bnxt *bp, int num_vfs, bool reset) req.min_vnics = cpu_to_le16(vf_vnics); req.min_stat_ctx = cpu_to_le16(vf_stat_ctx); req.min_hw_ring_grps = cpu_to_le16(vf_ring_grps); + req.min_rsscos_ctx = cpu_to_le16(vf_rss); } req.max_cmpl_rings = cpu_to_le16(vf_cp_rings); req.max_tx_rings = cpu_to_le16(vf_tx_rings); @@ -573,6 +576,7 @@ static int bnxt_hwrm_func_vf_resc_cfg(struct bnxt *bp, int num_vfs, bool reset) req.max_vnics = cpu_to_le16(vf_vnics); req.max_stat_ctx = cpu_to_le16(vf_stat_ctx); req.max_hw_ring_grps = cpu_to_le16(vf_ring_grps); + req.max_rsscos_ctx = cpu_to_le16(vf_rss); if (bp->flags & BNXT_FLAG_CHIP_P5) req.max_msix = cpu_to_le16(vf_msix / num_vfs); @@ -598,7 +602,7 @@ static int bnxt_hwrm_func_vf_resc_cfg(struct bnxt *bp, int num_vfs, bool reset) hw_resc->max_hw_ring_grps -= le16_to_cpu(req.min_hw_ring_grps) * n; hw_resc->max_cp_rings -= le16_to_cpu(req.min_cmpl_rings) * n; - hw_resc->max_rsscos_ctxs -= pf->active_vfs; + hw_resc->max_rsscos_ctxs -= le16_to_cpu(req.min_rsscos_ctx) * n; hw_resc->max_stat_ctxs -= le16_to_cpu(req.min_stat_ctx) * n; hw_resc->max_vnics -= le16_to_cpu(req.min_vnics) * n; if (bp->flags & BNXT_FLAG_CHIP_P5) -- cgit v1.2.3