From e56e2515669af9f2444228db39699d02c5a4989a Mon Sep 17 00:00:00 2001 From: Murilo Fossa Vicentini Date: Thu, 25 Apr 2019 11:02:33 -0300 Subject: [PATCH] ibmvnic: Add device identification to requested IRQs The ibmvnic driver currently uses the same fixed name when using request_irq, this makes it hard to parse when multiple VNIC devices are available at the same time. This patch adds the unit_address as the device identification along with an id for each queue. The original idea was to use the interface name as an identifier, but it is not feasible given these requests happen at adapter probe, and at this point netdev is not yet registered so it doesn't have the proper name assigned to it. Signed-off-by: Murilo Fossa Vicentini Reviewed-by: Mauro S. M. Rodrigues Reviewed-by: Thomas Falcon Signed-off-by: David S. Miller --- drivers/net/ethernet/ibm/ibmvnic.c | 13 +++++++++---- drivers/net/ethernet/ibm/ibmvnic.h | 2 ++ 2 files changed, 11 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c index 5e3cdb0..b398d6c 100644 --- a/drivers/net/ethernet/ibm/ibmvnic.c +++ b/drivers/net/ethernet/ibm/ibmvnic.c @@ -2919,8 +2919,10 @@ static int init_sub_crq_irqs(struct ibmvnic_adapter *adapter) goto req_tx_irq_failed; } + snprintf(scrq->name, sizeof(scrq->name), "ibmvnic-%x-tx%d", + adapter->vdev->unit_address, i); rc = request_irq(scrq->irq, ibmvnic_interrupt_tx, - 0, "ibmvnic_tx", scrq); + 0, scrq->name, scrq); if (rc) { dev_err(dev, "Couldn't register tx irq 0x%x. rc=%d\n", @@ -2940,8 +2942,10 @@ static int init_sub_crq_irqs(struct ibmvnic_adapter *adapter) dev_err(dev, "Error mapping irq\n"); goto req_rx_irq_failed; } + snprintf(scrq->name, sizeof(scrq->name), "ibmvnic-%x-rx%d", + adapter->vdev->unit_address, i); rc = request_irq(scrq->irq, ibmvnic_interrupt_rx, - 0, "ibmvnic_rx", scrq); + 0, scrq->name, scrq); if (rc) { dev_err(dev, "Couldn't register rx irq 0x%x. rc=%d\n", scrq->irq, rc); @@ -4667,8 +4671,9 @@ static int init_crq_queue(struct ibmvnic_adapter *adapter) (unsigned long)adapter); netdev_dbg(adapter->netdev, "registering irq 0x%x\n", vdev->irq); - rc = request_irq(vdev->irq, ibmvnic_interrupt, 0, IBMVNIC_NAME, - adapter); + snprintf(crq->name, sizeof(crq->name), "ibmvnic-%x", + adapter->vdev->unit_address); + rc = request_irq(vdev->irq, ibmvnic_interrupt, 0, crq->name, adapter); if (rc) { dev_err(dev, "Couldn't register irq 0x%x. rc=%d\n", vdev->irq, rc); diff --git a/drivers/net/ethernet/ibm/ibmvnic.h b/drivers/net/ethernet/ibm/ibmvnic.h index d5260a2..cffdac3 100644 --- a/drivers/net/ethernet/ibm/ibmvnic.h +++ b/drivers/net/ethernet/ibm/ibmvnic.h @@ -855,6 +855,7 @@ struct ibmvnic_crq_queue { dma_addr_t msg_token; spinlock_t lock; bool active; + char name[32]; }; union sub_crq { @@ -881,6 +882,7 @@ struct ibmvnic_sub_crq_queue { struct sk_buff *rx_skb_top; struct ibmvnic_adapter *adapter; atomic_t used; + char name[32]; }; struct ibmvnic_long_term_buff { -- 2.7.4