From f42822f22b1c5f72c7e3497d9683f379ab0c5fe4 Mon Sep 17 00:00:00 2001 From: Michael Chan Date: Mon, 5 Feb 2024 14:31:50 -0800 Subject: [PATCH] bnxt_en: Use firmware provided maximum filter counts. While individual filter structures are allocated as needed, there is an array to keep track of the software filter IDs that we allocate ahead of time. Rather than relying on a fixed maximum filter count to allocate this array, get the maximum from the firmware when available. Move these filter related maximum counts queried from the firmware to the bnxt_hw_resc struct. If the firmware is not providing these maximum counts, fall back to the hard-coded constant. Reviewed-by: Pavan Chebbi Signed-off-by: Michael Chan Reviewed-by: Michal Swiatkowski Link: https://lore.kernel.org/r/20240205223202.25341-2-michael.chan@broadcom.com Signed-off-by: Jakub Kicinski --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 26 ++++++++++++------- drivers/net/ethernet/broadcom/bnxt/bnxt.h | 13 +++++----- .../net/ethernet/broadcom/bnxt/bnxt_ethtool.c | 4 +-- 3 files changed, 26 insertions(+), 17 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 8fe8a73ffa7ed..aa3a7dccd202b 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -4840,7 +4840,7 @@ static int bnxt_alloc_ntp_fltrs(struct bnxt *bp) INIT_HLIST_HEAD(&bp->ntp_fltr_hash_tbl[i]); bp->ntp_fltr_count = 0; - bp->ntp_fltr_bmap = bitmap_zalloc(BNXT_MAX_FLTR, GFP_KERNEL); + bp->ntp_fltr_bmap = bitmap_zalloc(bp->max_fltr, GFP_KERNEL); if (!bp->ntp_fltr_bmap) rc = -ENOMEM; @@ -5480,7 +5480,7 @@ static int bnxt_init_l2_filter(struct bnxt *bp, struct bnxt_l2_filter *fltr, int bit_id; bit_id = bitmap_find_free_region(bp->ntp_fltr_bmap, - BNXT_MAX_FLTR, 0); + bp->max_fltr, 0); if (bit_id < 0) return -ENOMEM; fltr->base.sw_id = (u16)bit_id; @@ -8709,6 +8709,13 @@ static int __bnxt_hwrm_func_qcaps(struct bnxt *bp) hw_resc->max_vnics = le16_to_cpu(resp->max_vnics); hw_resc->max_stat_ctxs = le16_to_cpu(resp->max_stat_ctx); + hw_resc->max_encap_records = le32_to_cpu(resp->max_encap_records); + hw_resc->max_decap_records = le32_to_cpu(resp->max_decap_records); + hw_resc->max_tx_em_flows = le32_to_cpu(resp->max_tx_em_flows); + hw_resc->max_tx_wm_flows = le32_to_cpu(resp->max_tx_wm_flows); + hw_resc->max_rx_em_flows = le32_to_cpu(resp->max_rx_em_flows); + hw_resc->max_rx_wm_flows = le32_to_cpu(resp->max_rx_wm_flows); + if (BNXT_PF(bp)) { struct bnxt_pf_info *pf = &bp->pf; @@ -8717,12 +8724,6 @@ static int __bnxt_hwrm_func_qcaps(struct bnxt *bp) memcpy(pf->mac_addr, resp->mac_address, ETH_ALEN); pf->first_vf_id = le16_to_cpu(resp->first_vf_id); pf->max_vfs = le16_to_cpu(resp->max_vfs); - pf->max_encap_records = le32_to_cpu(resp->max_encap_records); - pf->max_decap_records = le32_to_cpu(resp->max_decap_records); - pf->max_tx_em_flows = le32_to_cpu(resp->max_tx_em_flows); - pf->max_tx_wm_flows = le32_to_cpu(resp->max_tx_wm_flows); - pf->max_rx_em_flows = le32_to_cpu(resp->max_rx_em_flows); - pf->max_rx_wm_flows = le32_to_cpu(resp->max_rx_wm_flows); bp->flags &= ~BNXT_FLAG_WOL_CAP; if (flags & FUNC_QCAPS_RESP_FLAGS_WOL_MAGICPKT_SUPPORTED) bp->flags |= BNXT_FLAG_WOL_CAP; @@ -13900,7 +13901,7 @@ int bnxt_insert_ntp_filter(struct bnxt *bp, struct bnxt_ntuple_filter *fltr, int bit_id; spin_lock_bh(&bp->ntp_fltr_lock); - bit_id = bitmap_find_free_region(bp->ntp_fltr_bmap, BNXT_MAX_FLTR, 0); + bit_id = bitmap_find_free_region(bp->ntp_fltr_bmap, bp->max_fltr, 0); if (bit_id < 0) { spin_unlock_bh(&bp->ntp_fltr_lock); return -ENOMEM; @@ -14670,6 +14671,7 @@ void bnxt_print_device_info(struct bnxt *bp) static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) { + struct bnxt_hw_resc *hw_resc; struct net_device *dev; struct bnxt *bp; int rc, max_irqs; @@ -14828,6 +14830,12 @@ static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) if (rc) goto init_err_pci_clean; + hw_resc = &bp->hw_resc; + bp->max_fltr = hw_resc->max_rx_em_flows + hw_resc->max_rx_wm_flows + + BNXT_L2_FLTR_MAX_FLTR; + /* Older firmware may not report these filters properly */ + if (bp->max_fltr < BNXT_MAX_FLTR) + bp->max_fltr = BNXT_MAX_FLTR; bnxt_init_l2_fltr_tbl(bp); bnxt_set_rx_skb_mode(bp, false); bnxt_set_tpa_flags(bp); diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h index b2cb3e77559dc..4bd1cf01d99e4 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h @@ -1281,6 +1281,12 @@ struct bnxt_hw_resc { u16 max_nqs; u16 max_irqs; u16 resv_irqs; + u32 max_encap_records; + u32 max_decap_records; + u32 max_tx_em_flows; + u32 max_tx_wm_flows; + u32 max_rx_em_flows; + u32 max_rx_wm_flows; }; #if defined(CONFIG_BNXT_SRIOV) @@ -1315,12 +1321,6 @@ struct bnxt_pf_info { u16 active_vfs; u16 registered_vfs; u16 max_vfs; - u32 max_encap_records; - u32 max_decap_records; - u32 max_tx_em_flows; - u32 max_tx_wm_flows; - u32 max_rx_em_flows; - u32 max_rx_wm_flows; unsigned long *vf_event_bmap; u16 hwrm_cmd_req_pages; u8 vf_resv_strategy; @@ -2428,6 +2428,7 @@ struct bnxt { unsigned long *ntp_fltr_bmap; int ntp_fltr_count; + int max_fltr; #define BNXT_L2_FLTR_MAX_FLTR 1024 #define BNXT_L2_FLTR_HASH_SIZE 32 diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c index 482ce88b15634..0effa87187ee7 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c @@ -1077,7 +1077,7 @@ static int bnxt_grxclsrule(struct bnxt *bp, struct ethtool_rxnfc *cmd) struct flow_keys *fkeys; int rc = -EINVAL; - if (fs->location >= BNXT_NTP_FLTR_MAX_FLTR) + if (fs->location >= bp->max_fltr) return rc; rcu_read_lock(); @@ -1521,7 +1521,7 @@ static int bnxt_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd, case ETHTOOL_GRXCLSRLCNT: cmd->rule_cnt = bp->ntp_fltr_count; - cmd->data = BNXT_NTP_FLTR_MAX_FLTR | RX_CLS_LOC_SPECIAL; + cmd->data = bp->max_fltr | RX_CLS_LOC_SPECIAL; break; case ETHTOOL_GRXCLSRLALL: -- 2.30.2