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Diffstat (limited to 'drivers/infiniband/hw/efa/efa_main.c')
-rw-r--r--drivers/infiniband/hw/efa/efa_main.c72
1 files changed, 48 insertions, 24 deletions
diff --git a/drivers/infiniband/hw/efa/efa_main.c b/drivers/infiniband/hw/efa/efa_main.c
index 5fa3603c80d8..4f03c0ec819f 100644
--- a/drivers/infiniband/hw/efa/efa_main.c
+++ b/drivers/infiniband/hw/efa/efa_main.c
@@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
/*
- * Copyright 2018-2024 Amazon.com, Inc. or its affiliates. All rights reserved.
+ * Copyright 2018-2025 Amazon.com, Inc. or its affiliates. All rights reserved.
*/
#include <linux/module.h>
@@ -16,11 +16,13 @@
#define PCI_DEV_ID_EFA0_VF 0xefa0
#define PCI_DEV_ID_EFA1_VF 0xefa1
#define PCI_DEV_ID_EFA2_VF 0xefa2
+#define PCI_DEV_ID_EFA3_VF 0xefa3
static const struct pci_device_id efa_pci_tbl[] = {
{ PCI_VDEVICE(AMAZON, PCI_DEV_ID_EFA0_VF) },
{ PCI_VDEVICE(AMAZON, PCI_DEV_ID_EFA1_VF) },
{ PCI_VDEVICE(AMAZON, PCI_DEV_ID_EFA2_VF) },
+ { PCI_VDEVICE(AMAZON, PCI_DEV_ID_EFA3_VF) },
{ }
};
@@ -139,8 +141,7 @@ static int efa_request_irq(struct efa_dev *dev, struct efa_irq *irq)
return 0;
}
-static void efa_setup_comp_irq(struct efa_dev *dev, struct efa_eq *eq,
- int vector)
+static void efa_setup_comp_irq(struct efa_dev *dev, struct efa_eq *eq, u32 vector)
{
u32 cpu;
@@ -190,15 +191,23 @@ static int efa_request_doorbell_bar(struct efa_dev *dev)
{
u8 db_bar_idx = dev->dev_attr.db_bar;
struct pci_dev *pdev = dev->pdev;
- int bars;
+ int pci_mem_bars;
+ int db_bar;
int err;
- if (!(BIT(db_bar_idx) & EFA_BASE_BAR_MASK)) {
- bars = pci_select_bars(pdev, IORESOURCE_MEM) & BIT(db_bar_idx);
+ db_bar = BIT(db_bar_idx);
+ if (!(db_bar & EFA_BASE_BAR_MASK)) {
+ pci_mem_bars = pci_select_bars(pdev, IORESOURCE_MEM);
+ if (db_bar & ~pci_mem_bars) {
+ dev_err(&pdev->dev,
+ "Doorbells BAR unavailable. Requested %#x, available %#x\n",
+ db_bar, pci_mem_bars);
+ return -ENODEV;
+ }
- err = pci_request_selected_regions(pdev, bars, DRV_MODULE_NAME);
+ err = pci_request_selected_regions(pdev, db_bar, DRV_MODULE_NAME);
if (err) {
- dev_err(&dev->pdev->dev,
+ dev_err(&pdev->dev,
"pci_request_selected_regions for bar %d failed %d\n",
db_bar_idx, err);
return err;
@@ -295,7 +304,7 @@ static void efa_destroy_eq(struct efa_dev *dev, struct efa_eq *eq)
efa_free_irq(dev, &eq->irq);
}
-static int efa_create_eq(struct efa_dev *dev, struct efa_eq *eq, u8 msix_vec)
+static int efa_create_eq(struct efa_dev *dev, struct efa_eq *eq, u32 msix_vec)
{
int err;
@@ -318,21 +327,17 @@ err_free_comp_irq:
static int efa_create_eqs(struct efa_dev *dev)
{
- unsigned int neqs = dev->dev_attr.max_eq;
- int err;
- int i;
-
- neqs = min_t(unsigned int, neqs,
- dev->num_irq_vectors - EFA_COMP_EQS_VEC_BASE);
+ u32 neqs = dev->dev_attr.max_eq;
+ int err, i;
+ neqs = min_t(u32, neqs, dev->num_irq_vectors - EFA_COMP_EQS_VEC_BASE);
dev->neqs = neqs;
dev->eqs = kcalloc(neqs, sizeof(*dev->eqs), GFP_KERNEL);
if (!dev->eqs)
return -ENOMEM;
for (i = 0; i < neqs; i++) {
- err = efa_create_eq(dev, &dev->eqs[i],
- i + EFA_COMP_EQS_VEC_BASE);
+ err = efa_create_eq(dev, &dev->eqs[i], i + EFA_COMP_EQS_VEC_BASE);
if (err)
goto err_destroy_eqs;
}
@@ -431,6 +436,7 @@ static int efa_ib_device_add(struct efa_dev *dev)
efa_set_host_info(dev);
dev->ibdev.node_type = RDMA_NODE_UNSPECIFIED;
+ dev->ibdev.node_guid = dev->dev_attr.guid;
dev->ibdev.phys_port_cnt = 1;
dev->ibdev.num_comp_vectors = dev->neqs ?: 1;
dev->ibdev.dev.parent = &pdev->dev;
@@ -459,7 +465,6 @@ static void efa_ib_device_remove(struct efa_dev *dev)
ibdev_info(&dev->ibdev, "Unregister ib device\n");
ib_unregister_device(&dev->ibdev);
efa_destroy_eqs(dev);
- efa_com_dev_reset(&dev->edev, EFA_REGS_RESET_NORMAL);
efa_release_doorbell_bar(dev);
}
@@ -531,7 +536,7 @@ static struct efa_dev *efa_probe_device(struct pci_dev *pdev)
{
struct efa_com_dev *edev;
struct efa_dev *dev;
- int bars;
+ int pci_mem_bars;
int err;
err = pci_enable_device_mem(pdev);
@@ -556,8 +561,14 @@ static struct efa_dev *efa_probe_device(struct pci_dev *pdev)
dev->pdev = pdev;
xa_init(&dev->cqs_xa);
- bars = pci_select_bars(pdev, IORESOURCE_MEM) & EFA_BASE_BAR_MASK;
- err = pci_request_selected_regions(pdev, bars, DRV_MODULE_NAME);
+ pci_mem_bars = pci_select_bars(pdev, IORESOURCE_MEM);
+ if (EFA_BASE_BAR_MASK & ~pci_mem_bars) {
+ dev_err(&pdev->dev, "BARs unavailable. Requested %#x, available %#x\n",
+ (int)EFA_BASE_BAR_MASK, pci_mem_bars);
+ err = -ENODEV;
+ goto err_ibdev_destroy;
+ }
+ err = pci_request_selected_regions(pdev, EFA_BASE_BAR_MASK, DRV_MODULE_NAME);
if (err) {
dev_err(&pdev->dev, "pci_request_selected_regions failed %d\n",
err);
@@ -626,12 +637,14 @@ err_disable_device:
return ERR_PTR(err);
}
-static void efa_remove_device(struct pci_dev *pdev)
+static void efa_remove_device(struct pci_dev *pdev,
+ enum efa_regs_reset_reason_types reset_reason)
{
struct efa_dev *dev = pci_get_drvdata(pdev);
struct efa_com_dev *edev;
edev = &dev->edev;
+ efa_com_dev_reset(edev, reset_reason);
efa_com_admin_destroy(edev);
efa_free_irq(dev, &dev->admin_irq);
efa_disable_msix(dev);
@@ -659,7 +672,7 @@ static int efa_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
return 0;
err_remove_device:
- efa_remove_device(pdev);
+ efa_remove_device(pdev, EFA_REGS_RESET_INIT_ERR);
return err;
}
@@ -668,7 +681,17 @@ static void efa_remove(struct pci_dev *pdev)
struct efa_dev *dev = pci_get_drvdata(pdev);
efa_ib_device_remove(dev);
- efa_remove_device(pdev);
+ efa_remove_device(pdev, EFA_REGS_RESET_NORMAL);
+}
+
+static void efa_shutdown(struct pci_dev *pdev)
+{
+ struct efa_dev *dev = pci_get_drvdata(pdev);
+
+ efa_destroy_eqs(dev);
+ efa_com_dev_reset(&dev->edev, EFA_REGS_RESET_SHUTDOWN);
+ efa_free_irq(dev, &dev->admin_irq);
+ efa_disable_msix(dev);
}
static struct pci_driver efa_pci_driver = {
@@ -676,6 +699,7 @@ static struct pci_driver efa_pci_driver = {
.id_table = efa_pci_tbl,
.probe = efa_probe,
.remove = efa_remove,
+ .shutdown = efa_shutdown,
};
module_pci_driver(efa_pci_driver);
generated by cgit (git 2.34.1) at 2025-07-25 16:55:49 +0000