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https://github.com/torvalds/linux
synced 2024-09-06 18:01:05 +00:00
bnxt_en: Refactor filter insertion logic in bnxt_rx_flow_steer().
Add a new function bnxt_insert_ntp_filter() to insert the ntuple filter into the hash table and other basic setup. We'll use this function to insert a user defined filter from ethtool. Also, export bnxt_lookup_ntp_filter_from_idx() and bnxt_get_ntp_filter_idx() for similar purposes. All ntuple related functions are now no longer compiled only for CONFIG_RFS_ACCEL Reviewed-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com> Reviewed-by: Andy Gospodarek <andrew.gospodarek@broadcom.com> Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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ee908d05dd
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59cde76f33
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@ -4800,7 +4800,6 @@ static void bnxt_clear_ring_indices(struct bnxt *bp)
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static void bnxt_free_ntp_fltrs(struct bnxt *bp, bool all)
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{
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#ifdef CONFIG_RFS_ACCEL
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int i;
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/* Under rtnl_lock and all our NAPIs have been disabled. It's
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@ -4828,12 +4827,10 @@ static void bnxt_free_ntp_fltrs(struct bnxt *bp, bool all)
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bitmap_free(bp->ntp_fltr_bmap);
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bp->ntp_fltr_bmap = NULL;
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bp->ntp_fltr_count = 0;
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#endif
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}
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static int bnxt_alloc_ntp_fltrs(struct bnxt *bp)
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{
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#ifdef CONFIG_RFS_ACCEL
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int i, rc = 0;
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if (!(bp->flags & BNXT_FLAG_RFS) || bp->ntp_fltr_bmap)
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@ -4849,9 +4846,6 @@ static int bnxt_alloc_ntp_fltrs(struct bnxt *bp)
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rc = -ENOMEM;
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return rc;
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#else
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return 0;
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#endif
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}
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static void bnxt_free_l2_filters(struct bnxt *bp, bool all)
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@ -5615,7 +5609,6 @@ int bnxt_hwrm_l2_filter_alloc(struct bnxt *bp, struct bnxt_l2_filter *fltr)
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return rc;
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}
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#ifdef CONFIG_RFS_ACCEL
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static int bnxt_hwrm_cfa_ntuple_filter_free(struct bnxt *bp,
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struct bnxt_ntuple_filter *fltr)
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{
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@ -5719,7 +5712,6 @@ static int bnxt_hwrm_cfa_ntuple_filter_alloc(struct bnxt *bp,
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hwrm_req_drop(bp, req);
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return rc;
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}
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#endif
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static int bnxt_hwrm_set_vnic_filter(struct bnxt *bp, u16 vnic_id, u16 idx,
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const u8 *mac_addr)
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@ -9677,7 +9669,6 @@ static int bnxt_setup_vnic(struct bnxt *bp, u16 vnic_id)
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static int bnxt_alloc_rfs_vnics(struct bnxt *bp)
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{
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#ifdef CONFIG_RFS_ACCEL
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int i, rc = 0;
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if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS)
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@ -9706,9 +9697,6 @@ static int bnxt_alloc_rfs_vnics(struct bnxt *bp)
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break;
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}
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return rc;
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#else
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return 0;
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#endif
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}
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/* Allow PF, trusted VFs and VFs with default VLAN to be in promiscuous mode */
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@ -10036,7 +10024,6 @@ static int bnxt_setup_int_mode(struct bnxt *bp)
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return rc;
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}
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#ifdef CONFIG_RFS_ACCEL
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static unsigned int bnxt_get_max_func_rss_ctxs(struct bnxt *bp)
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{
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return bp->hw_resc.max_rsscos_ctxs;
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@ -10046,7 +10033,6 @@ static unsigned int bnxt_get_max_func_vnics(struct bnxt *bp)
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{
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return bp->hw_resc.max_vnics;
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}
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#endif
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unsigned int bnxt_get_max_func_stat_ctxs(struct bnxt *bp)
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{
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@ -12160,7 +12146,6 @@ static bool bnxt_rfs_supported(struct bnxt *bp)
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/* If runtime conditions support RFS */
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static bool bnxt_rfs_capable(struct bnxt *bp)
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{
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#ifdef CONFIG_RFS_ACCEL
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int vnics, max_vnics, max_rss_ctxs;
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if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS)
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@ -12196,9 +12181,6 @@ static bool bnxt_rfs_capable(struct bnxt *bp)
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netdev_warn(bp->dev, "Unable to reserve resources to support NTUPLE filters.\n");
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bnxt_hwrm_reserve_rings(bp, 0, 0, 0, 0, 0, 1);
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return false;
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#else
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return false;
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#endif
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}
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static netdev_features_t bnxt_fix_features(struct net_device *dev,
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@ -13861,8 +13843,8 @@ static int bnxt_setup_tc(struct net_device *dev, enum tc_setup_type type,
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}
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}
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static u32 bnxt_get_ntp_filter_idx(struct bnxt *bp, struct flow_keys *fkeys,
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const struct sk_buff *skb)
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u32 bnxt_get_ntp_filter_idx(struct bnxt *bp, struct flow_keys *fkeys,
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const struct sk_buff *skb)
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{
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struct bnxt_vnic_info *vnic;
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@ -13873,7 +13855,30 @@ static u32 bnxt_get_ntp_filter_idx(struct bnxt *bp, struct flow_keys *fkeys,
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return bnxt_toeplitz(bp, fkeys, (void *)vnic->rss_hash_key);
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}
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#ifdef CONFIG_RFS_ACCEL
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int bnxt_insert_ntp_filter(struct bnxt *bp, struct bnxt_ntuple_filter *fltr,
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u32 idx)
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{
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struct hlist_head *head;
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int bit_id;
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spin_lock_bh(&bp->ntp_fltr_lock);
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bit_id = bitmap_find_free_region(bp->ntp_fltr_bmap, BNXT_MAX_FLTR, 0);
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if (bit_id < 0) {
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spin_unlock_bh(&bp->ntp_fltr_lock);
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return -ENOMEM;
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}
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fltr->base.sw_id = (u16)bit_id;
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fltr->base.type = BNXT_FLTR_TYPE_NTUPLE;
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fltr->base.flags |= BNXT_ACT_RING_DST;
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head = &bp->ntp_fltr_hash_tbl[idx];
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hlist_add_head_rcu(&fltr->base.hash, head);
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set_bit(BNXT_FLTR_INSERTED, &fltr->base.state);
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bp->ntp_fltr_count++;
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spin_unlock_bh(&bp->ntp_fltr_lock);
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return 0;
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}
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static bool bnxt_fltr_match(struct bnxt_ntuple_filter *f1,
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struct bnxt_ntuple_filter *f2)
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{
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@ -13904,7 +13909,7 @@ static bool bnxt_fltr_match(struct bnxt_ntuple_filter *f1,
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return false;
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}
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static struct bnxt_ntuple_filter *
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struct bnxt_ntuple_filter *
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bnxt_lookup_ntp_filter_from_idx(struct bnxt *bp,
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struct bnxt_ntuple_filter *fltr, u32 idx)
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{
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@ -13919,6 +13924,7 @@ bnxt_lookup_ntp_filter_from_idx(struct bnxt *bp,
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return NULL;
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}
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#ifdef CONFIG_RFS_ACCEL
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static int bnxt_rx_flow_steer(struct net_device *dev, const struct sk_buff *skb,
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u16 rxq_index, u32 flow_id)
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{
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@ -13927,8 +13933,7 @@ static int bnxt_rx_flow_steer(struct net_device *dev, const struct sk_buff *skb,
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struct flow_keys *fkeys;
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struct ethhdr *eth = (struct ethhdr *)skb_mac_header(skb);
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struct bnxt_l2_filter *l2_fltr;
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int rc = 0, idx, bit_id;
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struct hlist_head *head;
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int rc = 0, idx;
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u32 flags;
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if (ether_addr_equal(dev->dev_addr, eth->h_dest)) {
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@ -13981,7 +13986,6 @@ static int bnxt_rx_flow_steer(struct net_device *dev, const struct sk_buff *skb,
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new_fltr->l2_fltr = l2_fltr;
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idx = bnxt_get_ntp_filter_idx(bp, fkeys, skb);
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head = &bp->ntp_fltr_hash_tbl[idx];
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rcu_read_lock();
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fltr = bnxt_lookup_ntp_filter_from_idx(bp, new_fltr, idx);
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if (fltr) {
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@ -13991,33 +13995,20 @@ static int bnxt_rx_flow_steer(struct net_device *dev, const struct sk_buff *skb,
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}
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rcu_read_unlock();
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spin_lock_bh(&bp->ntp_fltr_lock);
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bit_id = bitmap_find_free_region(bp->ntp_fltr_bmap, BNXT_MAX_FLTR, 0);
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if (bit_id < 0) {
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spin_unlock_bh(&bp->ntp_fltr_lock);
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rc = -ENOMEM;
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goto err_free;
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}
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new_fltr->base.sw_id = (u16)bit_id;
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new_fltr->flow_id = flow_id;
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new_fltr->base.rxq = rxq_index;
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new_fltr->base.type = BNXT_FLTR_TYPE_NTUPLE;
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new_fltr->base.flags = BNXT_ACT_RING_DST;
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hlist_add_head_rcu(&new_fltr->base.hash, head);
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set_bit(BNXT_FLTR_INSERTED, &new_fltr->base.state);
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bp->ntp_fltr_count++;
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spin_unlock_bh(&bp->ntp_fltr_lock);
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bnxt_queue_sp_work(bp, BNXT_RX_NTP_FLTR_SP_EVENT);
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return new_fltr->base.sw_id;
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rc = bnxt_insert_ntp_filter(bp, new_fltr, idx);
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if (!rc) {
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bnxt_queue_sp_work(bp, BNXT_RX_NTP_FLTR_SP_EVENT);
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return new_fltr->base.sw_id;
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}
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err_free:
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bnxt_del_l2_filter(bp, l2_fltr);
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kfree(new_fltr);
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return rc;
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}
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#endif
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static void bnxt_cfg_ntp_filters(struct bnxt *bp)
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{
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netdev_info(bp->dev, "Receive PF driver unload event!\n");
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}
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#else
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static void bnxt_cfg_ntp_filters(struct bnxt *bp)
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{
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}
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#endif /* CONFIG_RFS_ACCEL */
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static int bnxt_udp_tunnel_set_port(struct net_device *netdev, unsigned int table,
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unsigned int entry, struct udp_tunnel_info *ti)
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{
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@ -2678,6 +2678,12 @@ int bnxt_check_rings(struct bnxt *bp, int tx, int rx, bool sh, int tcs,
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int bnxt_fw_init_one(struct bnxt *bp);
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bool bnxt_hwrm_reset_permitted(struct bnxt *bp);
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int bnxt_setup_mq_tc(struct net_device *dev, u8 tc);
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struct bnxt_ntuple_filter *bnxt_lookup_ntp_filter_from_idx(struct bnxt *bp,
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struct bnxt_ntuple_filter *fltr, u32 idx);
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u32 bnxt_get_ntp_filter_idx(struct bnxt *bp, struct flow_keys *fkeys,
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const struct sk_buff *skb);
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int bnxt_insert_ntp_filter(struct bnxt *bp, struct bnxt_ntuple_filter *fltr,
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u32 idx);
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int bnxt_get_max_rings(struct bnxt *, int *, int *, bool);
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int bnxt_restore_pf_fw_resources(struct bnxt *bp);
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int bnxt_get_port_parent_id(struct net_device *dev,
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