diff options
| -rw-r--r-- | drivers/infiniband/hw/hfi1/chip.c | 89 | ||||
| -rw-r--r-- | drivers/infiniband/hw/hfi1/hfi.h | 3 | ||||
| -rw-r--r-- | drivers/infiniband/hw/hfi1/pcie.c | 8 | ||||
| -rw-r--r-- | drivers/infiniband/hw/hfi1/vnic_main.c | 8 |
4 files changed, 25 insertions, 83 deletions
diff --git a/drivers/infiniband/hw/hfi1/chip.c b/drivers/infiniband/hw/hfi1/chip.c index 708dc1572249..5d03c780c780 100644 --- a/drivers/infiniband/hw/hfi1/chip.c +++ b/drivers/infiniband/hw/hfi1/chip.c @@ -8260,9 +8260,14 @@ static void is_interrupt(struct hfi1_devdata *dd, unsigned int source) dd_dev_err(dd, "invalid interrupt source %u\n", source); } -/* - * General interrupt handler. This is able to correctly handle - * all interrupts in case INTx is used. +/** + * gerneral_interrupt() - General interrupt handler + * @irq: MSIx IRQ vector + * @data: hfi1 devdata + * + * This is able to correctly handle all non-threaded interrupts. Receive + * context DATA IRQs are threaded and are not supported by this handler. + * */ static irqreturn_t general_interrupt(int irq, void *data) { @@ -13030,48 +13035,30 @@ static void clear_all_interrupts(struct hfi1_devdata *dd) write_csr(dd, DC_DC8051_ERR_CLR, ~(u64)0); } -/* Move to pcie.c? */ -static void disable_intx(struct pci_dev *pdev) -{ - pci_intx(pdev, 0); -} - /** * hfi1_clean_up_interrupts() - Free all IRQ resources * @dd: valid device data data structure * - * Free the MSI or INTx IRQs and assoicated PCI resources, - * if they have been allocated. + * Free the MSIx and assoicated PCI resources, if they have been allocated. */ void hfi1_clean_up_interrupts(struct hfi1_devdata *dd) { int i; + struct hfi1_msix_entry *me = dd->msix_entries; /* remove irqs - must happen before disabling/turning off */ - if (dd->num_msix_entries) { - /* MSI-X */ - struct hfi1_msix_entry *me = dd->msix_entries; - - for (i = 0; i < dd->num_msix_entries; i++, me++) { - if (!me->arg) /* => no irq, no affinity */ - continue; - hfi1_put_irq_affinity(dd, me); - pci_free_irq(dd->pcidev, i, me->arg); - } - - /* clean structures */ - kfree(dd->msix_entries); - dd->msix_entries = NULL; - dd->num_msix_entries = 0; - } else { - /* INTx */ - if (dd->requested_intx_irq) { - pci_free_irq(dd->pcidev, 0, dd); - dd->requested_intx_irq = 0; - } - disable_intx(dd->pcidev); + for (i = 0; i < dd->num_msix_entries; i++, me++) { + if (!me->arg) /* => no irq, no affinity */ + continue; + hfi1_put_irq_affinity(dd, me); + pci_free_irq(dd->pcidev, i, me->arg); } + /* clean structures */ + kfree(dd->msix_entries); + dd->msix_entries = NULL; + dd->num_msix_entries = 0; + pci_free_irq_vectors(dd->pcidev); } @@ -13121,20 +13108,6 @@ static void remap_sdma_interrupts(struct hfi1_devdata *dd, msix_intr); } -static int request_intx_irq(struct hfi1_devdata *dd) -{ - int ret; - - ret = pci_request_irq(dd->pcidev, 0, general_interrupt, NULL, dd, - DRIVER_NAME "_%d", dd->unit); - if (ret) - dd_dev_err(dd, "unable to request INTx interrupt, err %d\n", - ret); - else - dd->requested_intx_irq = 1; - return ret; -} - static int request_msix_irqs(struct hfi1_devdata *dd) { int first_general, last_general; @@ -13253,11 +13226,6 @@ void hfi1_vnic_synchronize_irq(struct hfi1_devdata *dd) { int i; - if (!dd->num_msix_entries) { - synchronize_irq(pci_irq_vector(dd->pcidev, 0)); - return; - } - for (i = 0; i < dd->vnic.num_ctxt; i++) { struct hfi1_ctxtdata *rcd = dd->vnic.ctxt[i]; struct hfi1_msix_entry *me = &dd->msix_entries[rcd->msix_intr]; @@ -13346,7 +13314,6 @@ static int set_up_interrupts(struct hfi1_devdata *dd) { u32 total; int ret, request; - int single_interrupt = 0; /* we expect to have all the interrupts */ /* * Interrupt count: @@ -13363,17 +13330,6 @@ static int set_up_interrupts(struct hfi1_devdata *dd) if (request < 0) { ret = request; goto fail; - } else if (request == 0) { - /* using INTx */ - /* dd->num_msix_entries already zero */ - single_interrupt = 1; - dd_dev_err(dd, "MSI-X failed, using INTx interrupts\n"); - } else if (request < total) { - /* using MSI-X, with reduced interrupts */ - dd_dev_err(dd, "reduced interrupt found, wanted %u, got %u\n", - total, request); - ret = -EINVAL; - goto fail; } else { dd->msix_entries = kcalloc(total, sizeof(*dd->msix_entries), GFP_KERNEL); @@ -13394,10 +13350,7 @@ static int set_up_interrupts(struct hfi1_devdata *dd) /* reset general handler mask, chip MSI-X mappings */ reset_interrupts(dd); - if (single_interrupt) - ret = request_intx_irq(dd); - else - ret = request_msix_irqs(dd); + ret = request_msix_irqs(dd); if (ret) goto fail; diff --git a/drivers/infiniband/hw/hfi1/hfi.h b/drivers/infiniband/hw/hfi1/hfi.h index d7263b82eb03..d9470317983f 100644 --- a/drivers/infiniband/hw/hfi1/hfi.h +++ b/drivers/infiniband/hw/hfi1/hfi.h @@ -1210,9 +1210,6 @@ struct hfi1_devdata { u32 num_msix_entries; u32 first_dyn_msix_idx; - /* INTx information */ - u32 requested_intx_irq; /* did we request one? */ - /* general interrupt: mask of handled interrupts */ u64 gi_mask[CCE_NUM_INT_CSRS]; diff --git a/drivers/infiniband/hw/hfi1/pcie.c b/drivers/infiniband/hw/hfi1/pcie.c index 144fc0a89da4..de3ee606034c 100644 --- a/drivers/infiniband/hw/hfi1/pcie.c +++ b/drivers/infiniband/hw/hfi1/pcie.c @@ -347,15 +347,13 @@ int pcie_speeds(struct hfi1_devdata *dd) /* * Returns: * - actual number of interrupts allocated or - * - 0 if fell back to INTx. * - error */ int request_msix(struct hfi1_devdata *dd, u32 msireq) { int nvec; - nvec = pci_alloc_irq_vectors(dd->pcidev, 1, msireq, - PCI_IRQ_MSIX | PCI_IRQ_LEGACY); + nvec = pci_alloc_irq_vectors(dd->pcidev, msireq, msireq, PCI_IRQ_MSIX); if (nvec < 0) { dd_dev_err(dd, "pci_alloc_irq_vectors() failed: %d\n", nvec); return nvec; @@ -363,10 +361,6 @@ int request_msix(struct hfi1_devdata *dd, u32 msireq) tune_pcie_caps(dd); - /* check for legacy IRQ */ - if (nvec == 1 && !dd->pcidev->msix_enabled) - return 0; - return nvec; } diff --git a/drivers/infiniband/hw/hfi1/vnic_main.c b/drivers/infiniband/hw/hfi1/vnic_main.c index 79874d8242cc..ba160f99cf8e 100644 --- a/drivers/infiniband/hw/hfi1/vnic_main.c +++ b/drivers/infiniband/hw/hfi1/vnic_main.c @@ -1,5 +1,5 @@ /* - * Copyright(c) 2017 Intel Corporation. + * Copyright(c) 2017 - 2018 Intel Corporation. * * This file is provided under a dual BSD/GPLv2 license. When using or * redistributing this file, you may do so under either license. @@ -120,8 +120,7 @@ static int allocate_vnic_ctxt(struct hfi1_devdata *dd, uctxt->seq_cnt = 1; uctxt->is_vnic = true; - if (dd->num_msix_entries) - hfi1_set_vnic_msix_info(uctxt); + hfi1_set_vnic_msix_info(uctxt); hfi1_stats.sps_ctxts++; dd_dev_dbg(dd, "created vnic context %d\n", uctxt->ctxt); @@ -136,8 +135,7 @@ static void deallocate_vnic_ctxt(struct hfi1_devdata *dd, dd_dev_dbg(dd, "closing vnic context %d\n", uctxt->ctxt); flush_wc(); - if (dd->num_msix_entries) - hfi1_reset_vnic_msix_info(uctxt); + hfi1_reset_vnic_msix_info(uctxt); /* * Disable receive context and interrupt available, reset all |