netdev - [PATCH net] net: mana: Fix IRQ name

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Date:   Thu, 19 Jan 2023 12:59:10 -0800
From:   Haiyang Zhang <haiyangz@...rosoft.com>
To:     linux-hyperv@...r.kernel.org, netdev@...r.kernel.org
Cc:     haiyangz@...rosoft.com, decui@...rosoft.com, kys@...rosoft.com,
        paulros@...rosoft.com, olaf@...fle.de, vkuznets@...hat.com,
        davem@...emloft.net, linux-kernel@...r.kernel.org,
        stable@...r.kernel.org
Subject: [PATCH net] net: mana: Fix IRQ name - add PCI and queue number

The PCI and queue number info is missing in IRQ names.

Add PCI and queue number to IRQ names, to allow CPU affinity
tuning scripts to work.

Cc: stable@...r.kernel.org
Fixes: ca9c54d2d6a5 ("net: mana: Add a driver for Microsoft Azure Network Adapter (MANA)")
Signed-off-by: Haiyang Zhang <haiyangz@...rosoft.com>
---
 drivers/net/ethernet/microsoft/mana/gdma_main.c | 9 ++++++++-
 include/net/mana/gdma.h                         | 3 +++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/microsoft/mana/gdma_main.c b/drivers/net/ethernet/microsoft/mana/gdma_main.c
index e708c2d04983..b144f2237748 100644
--- a/drivers/net/ethernet/microsoft/mana/gdma_main.c
+++ b/drivers/net/ethernet/microsoft/mana/gdma_main.c
@@ -1259,13 +1259,20 @@ static int mana_gd_setup_irqs(struct pci_dev *pdev)
 		gic->handler = NULL;
 		gic->arg = NULL;
 
+		if (!i)
+			snprintf(gic->name, MANA_IRQ_NAME_SZ, "mana_hwc@pci:%s",
+				 pci_name(pdev));
+		else
+			snprintf(gic->name, MANA_IRQ_NAME_SZ, "mana_q%d@pci:%s",
+				 i - 1, pci_name(pdev));
+
 		irq = pci_irq_vector(pdev, i);
 		if (irq < 0) {
 			err = irq;
 			goto free_mask;
 		}
 
-		err = request_irq(irq, mana_gd_intr, 0, "mana_intr", gic);
+		err = request_irq(irq, mana_gd_intr, 0, gic->name, gic);
 		if (err)
 			goto free_mask;
 		irq_set_affinity_and_hint(irq, req_mask);
diff --git a/include/net/mana/gdma.h b/include/net/mana/gdma.h
index b3ba04615caa..56189e4252da 100644
--- a/include/net/mana/gdma.h
+++ b/include/net/mana/gdma.h
@@ -336,9 +336,12 @@ struct gdma_queue_spec {
 	};
 };
 
+#define MANA_IRQ_NAME_SZ 32
+
 struct gdma_irq_context {
 	void (*handler)(void *arg);
 	void *arg;
+	char name[MANA_IRQ_NAME_SZ];
 };
 
 struct gdma_context {
-- 
2.25.1