netdev - [PATCH net-next 06/11] eth: bnxt: depend on core cleaning up RSS contexts

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Date: Tue,  2 Jul 2024 16:47:52 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org,
	edumazet@...gle.com,
	pabeni@...hat.com,
	ecree.xilinx@...il.com,
	michael.chan@...adcom.com,
	Jakub Kicinski <kuba@...nel.org>
Subject: [PATCH net-next 06/11] eth: bnxt: depend on core cleaning up RSS contexts

New RSS context API removes old contexts on netdev unregister.
No need to wipe them manually.

Signed-off-by: Jakub Kicinski <kuba@...nel.org>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt.c         | 11 ++++-------
 drivers/net/ethernet/broadcom/bnxt/bnxt.h         |  2 +-
 drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c |  2 +-
 3 files changed, 6 insertions(+), 9 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 02aeba4b5df5..b6915261c15d 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -10259,12 +10259,12 @@ struct bnxt_rss_ctx *bnxt_alloc_rss_ctx(struct bnxt *bp)
 	return rss_ctx;
 }
 
-void bnxt_clear_rss_ctxs(struct bnxt *bp, bool all)
+void bnxt_clear_rss_ctxs(struct bnxt *bp)
 {
 	struct bnxt_rss_ctx *rss_ctx, *tmp;
 
 	list_for_each_entry_safe(rss_ctx, tmp, &bp->rss_ctx_list, list)
-		bnxt_del_one_rss_ctx(bp, rss_ctx, all);
+		bnxt_del_one_rss_ctx(bp, rss_ctx, false);
 }
 
 static void bnxt_init_multi_rss_ctx(struct bnxt *bp)
@@ -12316,7 +12316,7 @@ static void __bnxt_close_nic(struct bnxt *bp, bool irq_re_init,
 		msleep(20);
 
 	if (BNXT_SUPPORTS_MULTI_RSS_CTX(bp))
-		bnxt_clear_rss_ctxs(bp, false);
+		bnxt_clear_rss_ctxs(bp);
 	/* Flush rings and disable interrupts */
 	bnxt_shutdown_nic(bp, irq_re_init);
 
@@ -15227,8 +15227,7 @@ static void bnxt_remove_one(struct pci_dev *pdev)
 
 	bnxt_free_l2_filters(bp, true);
 	bnxt_free_ntp_fltrs(bp, true);
-	if (BNXT_SUPPORTS_MULTI_RSS_CTX(bp))
-		bnxt_clear_rss_ctxs(bp, true);
+	WARN_ON(bp->num_rss_ctx);
 	clear_bit(BNXT_STATE_IN_FW_RESET, &bp->state);
 	/* Flush any pending tasks */
 	cancel_work_sync(&bp->sp_task);
@@ -15879,8 +15878,6 @@ static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	bnxt_clear_int_mode(bp);
 
 init_err_pci_clean:
-	if (BNXT_SUPPORTS_MULTI_RSS_CTX(bp))
-		bnxt_clear_rss_ctxs(bp, true);
 	bnxt_hwrm_func_drv_unrgtr(bp);
 	bnxt_free_hwrm_resources(bp);
 	bnxt_hwmon_uninit(bp);
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
index f4365a840e3a..04c4ff7b9052 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
@@ -2846,7 +2846,7 @@ int __bnxt_setup_vnic_p5(struct bnxt *bp, struct bnxt_vnic_info *vnic);
 void bnxt_del_one_rss_ctx(struct bnxt *bp, struct bnxt_rss_ctx *rss_ctx,
 			  bool all);
 struct bnxt_rss_ctx *bnxt_alloc_rss_ctx(struct bnxt *bp);
-void bnxt_clear_rss_ctxs(struct bnxt *bp, bool all);
+void bnxt_clear_rss_ctxs(struct bnxt *bp);
 int bnxt_open_nic(struct bnxt *, bool, bool);
 int bnxt_half_open_nic(struct bnxt *bp);
 void bnxt_half_close_nic(struct bnxt *bp);
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
index 48f8e14685a1..397aedad3d4f 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
@@ -970,7 +970,7 @@ static int bnxt_set_channels(struct net_device *dev,
 
 	bnxt_clear_usr_fltrs(bp, true);
 	if (BNXT_SUPPORTS_MULTI_RSS_CTX(bp))
-		bnxt_clear_rss_ctxs(bp, false);
+		bnxt_clear_rss_ctxs(bp);
 	if (netif_running(dev)) {
 		if (BNXT_PF(bp)) {
 			/* TODO CHIMP_FW: Send message to all VF's
-- 
2.45.2