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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>
This commit is contained in:
Christoph Hellwig 2017-02-15 08:18:42 +01:00 committed by Herbert Xu
parent f4f228bff3
commit 613844e811
2 changed files with 10 additions and 53 deletions
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5
drivers/crypto/cavium/cpt/cptpf.h
View File

@ -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];

58
drivers/crypto/cavium/cpt/cptpf_main.c
View File

@ -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)