diff options
author | Michael Hernandez <michael.hernandez@cavium.com> | 2016-12-12 14:40:06 -0800 |
---|---|---|
committer | Martin K. Petersen <martin.petersen@oracle.com> | 2016-12-14 15:37:58 -0500 |
commit | 4fa183455988adaa7f6565ca06bceecafb527820 (patch) | |
tree | 9bc39f090cc0c7400874f68d48a490b30ded9b64 | |
parent | 77ddb94a4853204dc680121d59221b1be7c2297e (diff) | |
download | linux-4fa183455988adaa7f6565ca06bceecafb527820.tar.bz2 |
scsi: qla2xxx: Utilize pci_alloc_irq_vectors/pci_free_irq_vectors calls.
Replaces the old pci_enable_msi[x]* and pci_disable_msi[x] calls.
Signed-off-by: Michael Hernandez <michael.hernandez@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
-rw-r--r-- | drivers/scsi/qla2xxx/qla_def.h | 2 | ||||
-rw-r--r-- | drivers/scsi/qla2xxx/qla_isr.c | 89 | ||||
-rw-r--r-- | drivers/scsi/qla2xxx/qla_mid.c | 2 |
3 files changed, 36 insertions, 57 deletions
diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h index 5236e3f2a06a..d38c205ae22c 100644 --- a/drivers/scsi/qla2xxx/qla_def.h +++ b/drivers/scsi/qla2xxx/qla_def.h @@ -2747,7 +2747,7 @@ struct qla_msix_entry { int have_irq; uint32_t vector; uint16_t entry; - struct rsp_que *rsp; + void *handle; struct irq_affinity_notify irq_notify; int cpuid; }; diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c index 19f18485a854..ad5304caf1ff 100644 --- a/drivers/scsi/qla2xxx/qla_isr.c +++ b/drivers/scsi/qla2xxx/qla_isr.c @@ -3025,52 +3025,17 @@ static struct qla_init_msix_entry qla83xx_msix_entries[3] = { { "qla2xxx (atio_q)", qla83xx_msix_atio_q }, }; -static void -qla24xx_disable_msix(struct qla_hw_data *ha) -{ - int i; - struct qla_msix_entry *qentry; - scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); - - for (i = 0; i < ha->msix_count; i++) { - qentry = &ha->msix_entries[i]; - if (qentry->have_irq) { - /* un-register irq cpu affinity notification */ - irq_set_affinity_notifier(qentry->vector, NULL); - free_irq(qentry->vector, qentry->rsp); - } - } - pci_disable_msix(ha->pdev); - kfree(ha->msix_entries); - ha->msix_entries = NULL; - ha->flags.msix_enabled = 0; - ql_dbg(ql_dbg_init, vha, 0x0042, - "Disabled the MSI.\n"); -} - static int qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp) { #define MIN_MSIX_COUNT 2 #define ATIO_VECTOR 2 int i, ret; - struct msix_entry *entries; struct qla_msix_entry *qentry; scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); - entries = kzalloc(sizeof(struct msix_entry) * ha->msix_count, - GFP_KERNEL); - if (!entries) { - ql_log(ql_log_warn, vha, 0x00bc, - "Failed to allocate memory for msix_entry.\n"); - return -ENOMEM; - } - - for (i = 0; i < ha->msix_count; i++) - entries[i].entry = i; - - ret = pci_enable_msix_range(ha->pdev, - entries, MIN_MSIX_COUNT, ha->msix_count); + ret = pci_alloc_irq_vectors(ha->pdev, MIN_MSIX_COUNT, ha->msix_count, + PCI_IRQ_MSIX); if (ret < 0) { ql_log(ql_log_fatal, vha, 0x00c7, "MSI-X: Failed to enable support, " @@ -3097,10 +3062,10 @@ qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp) for (i = 0; i < ha->msix_count; i++) { qentry = &ha->msix_entries[i]; - qentry->vector = entries[i].vector; - qentry->entry = entries[i].entry; + qentry->vector = pci_irq_vector(ha->pdev, i); + qentry->entry = i; qentry->have_irq = 0; - qentry->rsp = NULL; + qentry->handle = NULL; qentry->irq_notify.notify = qla_irq_affinity_notify; qentry->irq_notify.release = qla_irq_affinity_release; qentry->cpuid = -1; @@ -3109,7 +3074,7 @@ qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp) /* Enable MSI-X vectors for the base queue */ for (i = 0; i < 2; i++) { qentry = &ha->msix_entries[i]; - qentry->rsp = rsp; + qentry->handle = rsp; rsp->msix = qentry; if (IS_P3P_TYPE(ha)) ret = request_irq(qentry->vector, @@ -3142,7 +3107,7 @@ qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp) */ if (QLA_TGT_MODE_ENABLED() && IS_ATIO_MSIX_CAPABLE(ha)) { qentry = &ha->msix_entries[ATIO_VECTOR]; - qentry->rsp = rsp; + qentry->handle = rsp; rsp->msix = qentry; ret = request_irq(qentry->vector, qla83xx_msix_entries[ATIO_VECTOR].handler, @@ -3155,7 +3120,7 @@ msix_register_fail: ql_log(ql_log_fatal, vha, 0x00cb, "MSI-X: unable to register handler -- %x/%d.\n", qentry->vector, ret); - qla24xx_disable_msix(ha); + qla2x00_free_irqs(vha); ha->mqenable = 0; goto msix_out; } @@ -3177,7 +3142,6 @@ msix_register_fail: ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues); msix_out: - kfree(entries); return ret; } @@ -3230,7 +3194,7 @@ skip_msix: !IS_QLA27XX(ha)) goto skip_msi; - ret = pci_enable_msi(ha->pdev); + ret = pci_alloc_irq_vectors(ha->pdev, 1, 1, PCI_IRQ_MSI); if (!ret) { ql_dbg(ql_dbg_init, vha, 0x0038, "MSI: Enabled.\n"); @@ -3275,6 +3239,8 @@ qla2x00_free_irqs(scsi_qla_host_t *vha) { struct qla_hw_data *ha = vha->hw; struct rsp_que *rsp; + struct qla_msix_entry *qentry; + int i; /* * We need to check that ha->rsp_q_map is valid in case we are called @@ -3284,13 +3250,24 @@ qla2x00_free_irqs(scsi_qla_host_t *vha) return; rsp = ha->rsp_q_map[0]; - if (ha->flags.msix_enabled) - qla24xx_disable_msix(ha); - else if (ha->flags.msi_enabled) { - free_irq(ha->pdev->irq, rsp); - pci_disable_msi(ha->pdev); - } else - free_irq(ha->pdev->irq, rsp); + if (ha->flags.msix_enabled) { + for (i = 0; i < ha->msix_count; i++) { + qentry = &ha->msix_entries[i]; + if (qentry->have_irq) { + irq_set_affinity_notifier(qentry->vector, NULL); + free_irq(pci_irq_vector(ha->pdev, i), qentry->handle); + } + } + kfree(ha->msix_entries); + ha->msix_entries = NULL; + ha->flags.msix_enabled = 0; + ql_dbg(ql_dbg_init, vha, 0x0042, + "Disabled MSI-X.\n"); + } else { + free_irq(pci_irq_vector(ha->pdev, 0), rsp); + } + + pci_free_irq_vectors(ha->pdev); } @@ -3310,7 +3287,7 @@ int qla25xx_request_irq(struct rsp_que *rsp) return ret; } msix->have_irq = 1; - msix->rsp = rsp; + msix->handle = rsp; return ret; } @@ -3323,11 +3300,12 @@ static void qla_irq_affinity_notify(struct irq_affinity_notify *notify, container_of(notify, struct qla_msix_entry, irq_notify); struct qla_hw_data *ha; struct scsi_qla_host *base_vha; + struct rsp_que *rsp = e->handle; /* user is recommended to set mask to just 1 cpu */ e->cpuid = cpumask_first(mask); - ha = e->rsp->hw; + ha = rsp->hw; base_vha = pci_get_drvdata(ha->pdev); ql_dbg(ql_dbg_init, base_vha, 0xffff, @@ -3351,7 +3329,8 @@ static void qla_irq_affinity_release(struct kref *ref) container_of(ref, struct irq_affinity_notify, kref); struct qla_msix_entry *e = container_of(notify, struct qla_msix_entry, irq_notify); - struct scsi_qla_host *base_vha = pci_get_drvdata(e->rsp->hw->pdev); + struct rsp_que *rsp = e->handle; + struct scsi_qla_host *base_vha = pci_get_drvdata(rsp->hw->pdev); ql_dbg(ql_dbg_init, base_vha, 0xffff, "%s: host%ld: vector %d cpu %d \n", __func__, diff --git a/drivers/scsi/qla2xxx/qla_mid.c b/drivers/scsi/qla2xxx/qla_mid.c index cf7ba52bae66..8e406fc35db4 100644 --- a/drivers/scsi/qla2xxx/qla_mid.c +++ b/drivers/scsi/qla2xxx/qla_mid.c @@ -542,7 +542,7 @@ qla25xx_free_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp) if (rsp->msix && rsp->msix->have_irq) { free_irq(rsp->msix->vector, rsp); rsp->msix->have_irq = 0; - rsp->msix->rsp = NULL; + rsp->msix->handle = NULL; } dma_free_coherent(&ha->pdev->dev, (rsp->length + 1) * sizeof(response_t), rsp->ring, rsp->dma); 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