diff options
| author | Jason Gunthorpe <jgg@mellanox.com> | 2020-03-13 19:33:25 +0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2020-03-18 02:15:03 +0300 |
| commit | 3cae58047c1343949fb20c0e142845133ce0a074 (patch) | |
| tree | 94e9b9ced36d5ef9bdd66128db96184ed33ba1ea /drivers | |
| parent | 67b3c8dceac6644322d5707687449f6dcbdff417 (diff) | |
| download | linux-3cae58047c1343949fb20c0e142845133ce0a074.tar.xz | |
RDMA/bnxt_re: Use ib_device_try_get()
There are a couple places in this driver running from a work queue that
need the ib_device to be registered. Instead of using a broken internal
bit rely on the new core code to guarantee device registration.
Link: https://lore.kernel.org/r/1584117207-2664-2-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/infiniband/hw/bnxt_re/bnxt_re.h | 1 | ||||
| -rw-r--r-- | drivers/infiniband/hw/bnxt_re/main.c | 27 |
2 files changed, 14 insertions, 14 deletions
diff --git a/drivers/infiniband/hw/bnxt_re/bnxt_re.h b/drivers/infiniband/hw/bnxt_re/bnxt_re.h index c736e8254e75..407141ea0242 100644 --- a/drivers/infiniband/hw/bnxt_re/bnxt_re.h +++ b/drivers/infiniband/hw/bnxt_re/bnxt_re.h @@ -132,7 +132,6 @@ struct bnxt_re_dev { struct list_head list; unsigned long flags; #define BNXT_RE_FLAG_NETDEV_REGISTERED 0 -#define BNXT_RE_FLAG_IBDEV_REGISTERED 1 #define BNXT_RE_FLAG_GOT_MSIX 2 #define BNXT_RE_FLAG_HAVE_L2_REF 3 #define BNXT_RE_FLAG_RCFW_CHANNEL_EN 4 diff --git a/drivers/infiniband/hw/bnxt_re/main.c b/drivers/infiniband/hw/bnxt_re/main.c index 415693f8015a..885127c1e81b 100644 --- a/drivers/infiniband/hw/bnxt_re/main.c +++ b/drivers/infiniband/hw/bnxt_re/main.c @@ -1171,12 +1171,13 @@ static int bnxt_re_update_gid(struct bnxt_re_dev *rdev) u16 gid_idx, index; int rc = 0; - if (!test_bit(BNXT_RE_FLAG_IBDEV_REGISTERED, &rdev->flags)) + if (!ib_device_try_get(&rdev->ibdev)) return 0; if (!sgid_tbl) { ibdev_err(&rdev->ibdev, "QPLIB: SGID table not allocated"); - return -EINVAL; + rc = -EINVAL; + goto out; } for (index = 0; index < sgid_tbl->active; index++) { @@ -1196,7 +1197,8 @@ static int bnxt_re_update_gid(struct bnxt_re_dev *rdev) rc = bnxt_qplib_update_sgid(sgid_tbl, &gid, gid_idx, rdev->qplib_res.netdev->dev_addr); } - +out: + ib_device_put(&rdev->ibdev); return rc; } @@ -1319,7 +1321,6 @@ int bnxt_re_ib_init(struct bnxt_re_dev *rdev) pr_err("Failed to register with IB: %#x\n", rc); return rc; } - set_bit(BNXT_RE_FLAG_IBDEV_REGISTERED, &rdev->flags); dev_info(rdev_to_dev(rdev), "Device registered successfully"); ib_get_eth_speed(&rdev->ibdev, 1, &rdev->active_speed, &rdev->active_width); @@ -1612,7 +1613,6 @@ static void bnxt_re_dealloc_driver(struct ib_device *ib_dev) struct bnxt_re_dev *rdev = container_of(ib_dev, struct bnxt_re_dev, ibdev); - clear_bit(BNXT_RE_FLAG_IBDEV_REGISTERED, &rdev->flags); dev_info(rdev_to_dev(rdev), "Unregistering Device"); rtnl_lock(); @@ -1630,12 +1630,7 @@ static void bnxt_re_task(struct work_struct *work) re_work = container_of(work, struct bnxt_re_work, work); rdev = re_work->rdev; - if (re_work->event != NETDEV_REGISTER && - !test_bit(BNXT_RE_FLAG_IBDEV_REGISTERED, &rdev->flags)) - goto done; - - switch (re_work->event) { - case NETDEV_REGISTER: + if (re_work->event == NETDEV_REGISTER) { rc = bnxt_re_ib_init(rdev); if (rc) { ibdev_err(&rdev->ibdev, @@ -1645,7 +1640,13 @@ static void bnxt_re_task(struct work_struct *work) rtnl_unlock(); goto exit; } - break; + goto exit; + } + + if (!ib_device_try_get(&rdev->ibdev)) + goto exit; + + switch (re_work->event) { case NETDEV_UP: bnxt_re_dispatch_event(&rdev->ibdev, NULL, 1, IB_EVENT_PORT_ACTIVE); @@ -1665,7 +1666,7 @@ static void bnxt_re_task(struct work_struct *work) default: break; } -done: + ib_device_put(&rdev->ibdev); smp_mb__before_atomic(); atomic_dec(&rdev->sched_count); exit: |