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authorChristoph Hellwig <hch@lst.de>2017-02-15 10:18:42 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2017-02-23 15:11:00 +0300
commit613844e811a87ddbc646bd30e724c34472540296 (patch)
tree5db866ee2037a9668383f56b78b1d3660134208e /drivers/crypto
parentf4f228bff3c98990537ebd4bcab6730ae02d6e48 (diff)
downloadlinux-613844e811a87ddbc646bd30e724c34472540296.tar.xz
crypto: cavium - switch to pci_alloc_irq_vectors
pci_enable_msix has been long deprecated, but this driver adds a new instance. Convert it to pci_alloc_irq_vectors and greatly simplify the code. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto')
-rw-r--r--drivers/crypto/cavium/cpt/cptpf.h5
-rw-r--r--drivers/crypto/cavium/cpt/cptpf_main.c58
2 files changed, 10 insertions, 53 deletions
diff --git a/drivers/crypto/cavium/cpt/cptpf.h b/drivers/crypto/cavium/cpt/cptpf.h
index 8a2a8e538da4..c0556c5f63c9 100644
--- a/drivers/crypto/cavium/cpt/cptpf.h
+++ b/drivers/crypto/cavium/cpt/cptpf.h
@@ -51,11 +51,6 @@ struct cpt_device {
struct cpt_vf_info vfinfo[CPT_MAX_VF_NUM]; /* Per VF info */
void __iomem *reg_base; /* Register start address */
- /* MSI-X */
- u8 num_vec;
- bool msix_enabled;
- struct msix_entry msix_entries[CPT_PF_MSIX_VECTORS];
- bool irq_allocated[CPT_PF_MSIX_VECTORS];
struct pci_dev *pdev; /* pci device handle */
struct microcode mcode[CPT_MAX_CORE_GROUPS];
diff --git a/drivers/crypto/cavium/cpt/cptpf_main.c b/drivers/crypto/cavium/cpt/cptpf_main.c
index 682d57a11a75..4119c40e7c4b 100644
--- a/drivers/crypto/cavium/cpt/cptpf_main.c
+++ b/drivers/crypto/cavium/cpt/cptpf_main.c
@@ -332,26 +332,6 @@ static int cpt_ucode_load(struct cpt_device *cpt)
return ret;
}
-static int cpt_enable_msix(struct cpt_device *cpt)
-{
- int i, ret;
-
- cpt->num_vec = CPT_PF_MSIX_VECTORS;
-
- for (i = 0; i < cpt->num_vec; i++)
- cpt->msix_entries[i].entry = i;
-
- ret = pci_enable_msix(cpt->pdev, cpt->msix_entries, cpt->num_vec);
- if (ret) {
- dev_err(&cpt->pdev->dev, "Request for #%d msix vectors failed\n",
- cpt->num_vec);
- return ret;
- }
-
- cpt->msix_enabled = 1;
- return 0;
-}
-
static irqreturn_t cpt_mbx0_intr_handler(int irq, void *cpt_irq)
{
struct cpt_device *cpt = (struct cpt_device *)cpt_irq;
@@ -361,26 +341,6 @@ static irqreturn_t cpt_mbx0_intr_handler(int irq, void *cpt_irq)
return IRQ_HANDLED;
}
-static void cpt_disable_msix(struct cpt_device *cpt)
-{
- if (cpt->msix_enabled) {
- pci_disable_msix(cpt->pdev);
- cpt->msix_enabled = 0;
- cpt->num_vec = 0;
- }
-}
-
-static void cpt_free_all_interrupts(struct cpt_device *cpt)
-{
- int irq;
-
- for (irq = 0; irq < cpt->num_vec; irq++) {
- if (cpt->irq_allocated[irq])
- free_irq(cpt->msix_entries[irq].vector, cpt);
- cpt->irq_allocated[irq] = false;
- }
-}
-
static void cpt_reset(struct cpt_device *cpt)
{
cpt_write_csr64(cpt->reg_base, CPTX_PF_RESET(0), 1);
@@ -506,32 +466,34 @@ static int cpt_register_interrupts(struct cpt_device *cpt)
struct device *dev = &cpt->pdev->dev;
/* Enable MSI-X */
- ret = cpt_enable_msix(cpt);
- if (ret)
+ ret = pci_alloc_irq_vectors(cpt->pdev, CPT_PF_MSIX_VECTORS,
+ CPT_PF_MSIX_VECTORS, PCI_IRQ_MSIX);
+ if (ret < 0) {
+ dev_err(&cpt->pdev->dev, "Request for #%d msix vectors failed\n",
+ CPT_PF_MSIX_VECTORS);
return ret;
+ }
/* Register mailbox interrupt handlers */
- ret = request_irq(cpt->msix_entries[CPT_PF_INT_VEC_E_MBOXX(0)].vector,
+ ret = request_irq(pci_irq_vector(cpt->pdev, CPT_PF_INT_VEC_E_MBOXX(0)),
cpt_mbx0_intr_handler, 0, "CPT Mbox0", cpt);
if (ret)
goto fail;
- cpt->irq_allocated[CPT_PF_INT_VEC_E_MBOXX(0)] = true;
-
/* Enable mailbox interrupt */
cpt_enable_mbox_interrupts(cpt);
return 0;
fail:
dev_err(dev, "Request irq failed\n");
- cpt_free_all_interrupts(cpt);
+ pci_disable_msix(cpt->pdev);
return ret;
}
static void cpt_unregister_interrupts(struct cpt_device *cpt)
{
- cpt_free_all_interrupts(cpt);
- cpt_disable_msix(cpt);
+ free_irq(pci_irq_vector(cpt->pdev, CPT_PF_INT_VEC_E_MBOXX(0)), cpt);
+ pci_disable_msix(cpt->pdev);
}
static int cpt_sriov_init(struct cpt_device *cpt, int num_vfs)