Re: [PATCH net-next v3 08/13] bnxt: use snapshot in bnxt_cfg_rx_mode
From: Michael Chan <michael.chan@broadcom.com>
Date: 2026-03-24 01:09:06
Also in:
intel-wired-lan, linux-doc, linux-kselftest, linux-rdma, linux-wireless, lkml
On Thu, Mar 19, 2026 at 6:25 PM Stanislav Fomichev [off-list ref] wrote:
quoted hunk ↗ jump to hunk
With the introduction of ndo_set_rx_mode_async (as discussed in [0]) we can call bnxt_cfg_rx_mode directly. Convert bnxt_cfg_rx_mode to use uc/mc snapshots and move its call in bnxt_sp_task to the section that resets BNXT_STATE_IN_SP_TASK. Switch to direct call in bnxt_set_rx_mode. 0: https://lore.kernel.org/netdev/CACKFLi=5vj8hPqEUKDd8RTw3au5G+zRgQEqjF+6NZnyoNm90KA@mail.gmail.com/ (local) Cc: Michael Chan <michael.chan@broadcom.com> Cc: Pavan Chebbi <pavan.chebbi@broadcom.com> Signed-off-by: Stanislav Fomichev <sdf@fomichev.me> --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 26 ++++++++++++++--------- 1 file changed, 16 insertions(+), 10 deletions(-)diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 225217b32e4b..12265bd7fda4 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c@@ -11039,7 +11039,8 @@ static int bnxt_setup_nitroa0_vnic(struct bnxt *bp) return rc; } -static int bnxt_cfg_rx_mode(struct bnxt *); +static int bnxt_cfg_rx_mode(struct bnxt *, struct netdev_hw_addr_list *, + struct netdev_hw_addr_list *); static bool bnxt_mc_list_updated(struct bnxt *, u32 *, const struct netdev_hw_addr_list *);@@ -11135,7 +11136,7 @@ static int bnxt_init_chip(struct bnxt *bp, bool irq_re_init) vnic->rx_mask |= mask; } - rc = bnxt_cfg_rx_mode(bp); + rc = bnxt_cfg_rx_mode(bp, &bp->dev->uc, &bp->dev->mc); if (rc) goto err_out;@@ -13610,11 +13611,12 @@ static void bnxt_set_rx_mode(struct net_device *dev, if (mask != vnic->rx_mask || uc_update || mc_update) { vnic->rx_mask = mask; - bnxt_queue_sp_work(bp, BNXT_RX_MASK_SP_EVENT); + bnxt_cfg_rx_mode(bp, uc, mc); } } -static int bnxt_cfg_rx_mode(struct bnxt *bp) +static int bnxt_cfg_rx_mode(struct bnxt *bp, struct netdev_hw_addr_list *uc, + struct netdev_hw_addr_list *mc) { struct net_device *dev = bp->dev; struct bnxt_vnic_info *vnic = &bp->vnic_info[BNXT_VNIC_DEFAULT];@@ -13623,7 +13625,7 @@ static int bnxt_cfg_rx_mode(struct bnxt *bp) bool uc_update; netif_addr_lock_bh(dev); - uc_update = bnxt_uc_list_updated(bp, &dev->uc); + uc_update = bnxt_uc_list_updated(bp, uc);
Will the uc list snapshot change between bnxt_set_rx_mode() and bnxt_cfg_rx_mode() with the direct call now? In the original deferred update implementation, the uc list can change and that's why we check in both functions.
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