diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 4afc1df74129..228ba6664083 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -4830,6 +4830,45 @@ static u16 bnxt_cp_ring_for_tx(struct bnxt *bp, struct bnxt_tx_ring_info *txr) } } +static int bnxt_alloc_rss_indir_tbl(struct bnxt *bp) +{ + int entries; + + if (bp->flags & BNXT_FLAG_CHIP_P5) + entries = BNXT_MAX_RSS_TABLE_ENTRIES_P5; + else + entries = HW_HASH_INDEX_SIZE; + + bp->rss_indir_tbl_entries = entries; + bp->rss_indir_tbl = kmalloc_array(entries, sizeof(*bp->rss_indir_tbl), + GFP_KERNEL); + if (!bp->rss_indir_tbl) + return -ENOMEM; + return 0; +} + +static void bnxt_set_dflt_rss_indir_tbl(struct bnxt *bp) +{ + u16 max_rings, max_entries, pad, i; + + if (!bp->rx_nr_rings) + return; + + if (BNXT_CHIP_TYPE_NITRO_A0(bp)) + max_rings = bp->rx_nr_rings - 1; + else + max_rings = bp->rx_nr_rings; + + max_entries = bnxt_get_rxfh_indir_size(bp->dev); + + for (i = 0; i < max_entries; i++) + bp->rss_indir_tbl[i] = ethtool_rxfh_indir_default(i, max_rings); + + pad = bp->rss_indir_tbl_entries - max_entries; + if (pad) + memset(&bp->rss_indir_tbl[i], 0, pad * sizeof(u16)); +} + static int bnxt_hwrm_vnic_set_rss(struct bnxt *bp, u16 vnic_id, bool set_rss) { u32 i, j, max_rings; @@ -11514,6 +11553,8 @@ static void bnxt_remove_one(struct pci_dev *pdev) bnxt_free_ctx_mem(bp); kfree(bp->ctx); bp->ctx = NULL; + kfree(bp->rss_indir_tbl); + bp->rss_indir_tbl = NULL; bnxt_free_port_stats(bp); free_netdev(dev); } @@ -12034,6 +12075,11 @@ static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) */ bp->tx_nr_rings_per_tc = bp->tx_nr_rings; + rc = bnxt_alloc_rss_indir_tbl(bp); + if (rc) + goto init_err_pci_clean; + bnxt_set_dflt_rss_indir_tbl(bp); + if (BNXT_PF(bp)) { if (!bnxt_pf_wq) { bnxt_pf_wq = @@ -12078,6 +12124,8 @@ init_err_pci_clean: bnxt_free_ctx_mem(bp); kfree(bp->ctx); bp->ctx = NULL; + kfree(bp->rss_indir_tbl); + bp->rss_indir_tbl = NULL; init_err_free: free_netdev(dev); diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h index 5883b2462db2..6de281302f2e 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h @@ -1023,6 +1023,8 @@ struct bnxt_vnic_info { #define BNXT_RSS_TABLE_MAX_TBL_P5 8 #define BNXT_MAX_RSS_TABLE_SIZE_P5 \ (BNXT_RSS_TABLE_SIZE_P5 * BNXT_RSS_TABLE_MAX_TBL_P5) +#define BNXT_MAX_RSS_TABLE_ENTRIES_P5 \ + (BNXT_RSS_TABLE_ENTRIES_P5 * BNXT_RSS_TABLE_MAX_TBL_P5) u32 rx_mask; @@ -1655,6 +1657,8 @@ struct bnxt { struct bnxt_ring_grp_info *grp_info; struct bnxt_vnic_info *vnic_info; int nr_vnics; + u16 *rss_indir_tbl; + u16 rss_indir_tbl_entries; u32 rss_hash_cfg; u16 max_mtu;