[PATCH net] net: mana: Fix IRQ name - add PCI and queue number

From: Haiyang Zhang
Date: Thu Jan 19 2023 - 16:07:50 EST


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@xxxxxxxxxxxxxxx
Fixes: ca9c54d2d6a5 ("net: mana: Add a driver for Microsoft Azure Network Adapter (MANA)")
Signed-off-by: Haiyang Zhang <haiyangz@xxxxxxxxxxxxx>
---
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