diff options
| author | Vijaya Mohan Guvva <vijaya.guvva@cavium.com> | 2017-11-03 12:17:44 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-11-04 09:17:29 +0900 |
| commit | bf5345882bd18bc1b4966d170c0491ebe5c9a7d6 (patch) | |
| tree | 9cfffbff75582395a4ca35f6170d797cc74b3330 /drivers | |
| parent | de4cc8bd68c0aefdbbdbdaad28185f1c0ac18442 (diff) | |
| download | linux-bf5345882bd18bc1b4966d170c0491ebe5c9a7d6.tar.bz2 | |
liquidio: Fix an issue with multiple switchdev enable disables
Return success if the same dispatch function is being registered for
a given opcode and subcode, there by allow multiple switchdev enable
and disables.
Signed-off-by: Vijaya Mohan Guvva <vijaya.guvva@cavium.com>
Signed-off-by: Satanand Burla <satananda.burla@cavium.com>
Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/cavium/liquidio/octeon_device.c | 4 | ||||
| -rw-r--r-- | drivers/net/ethernet/cavium/liquidio/octeon_droq.c | 4 | ||||
| -rw-r--r-- | drivers/net/ethernet/cavium/liquidio/octeon_droq.h | 3 |
3 files changed, 9 insertions, 2 deletions
diff --git a/drivers/net/ethernet/cavium/liquidio/octeon_device.c b/drivers/net/ethernet/cavium/liquidio/octeon_device.c index e4aa3395a578..2c615ab09e64 100644 --- a/drivers/net/ethernet/cavium/liquidio/octeon_device.c +++ b/drivers/net/ethernet/cavium/liquidio/octeon_device.c @@ -1180,6 +1180,10 @@ octeon_register_dispatch_fn(struct octeon_device *oct, spin_unlock_bh(&oct->dispatch.lock); } else { + if (pfn == fn && + octeon_get_dispatch_arg(oct, opcode, subcode) == fn_arg) + return 0; + dev_err(&oct->pci_dev->dev, "Found previously registered dispatch fn for opcode/subcode: %x/%x\n", opcode, subcode); diff --git a/drivers/net/ethernet/cavium/liquidio/octeon_droq.c b/drivers/net/ethernet/cavium/liquidio/octeon_droq.c index 9372d4ce9954..3461d65ff4eb 100644 --- a/drivers/net/ethernet/cavium/liquidio/octeon_droq.c +++ b/drivers/net/ethernet/cavium/liquidio/octeon_droq.c @@ -52,8 +52,8 @@ struct __dispatch { * @return Failure: NULL * */ -static inline void *octeon_get_dispatch_arg(struct octeon_device *octeon_dev, - u16 opcode, u16 subcode) +void *octeon_get_dispatch_arg(struct octeon_device *octeon_dev, + u16 opcode, u16 subcode) { int idx; struct list_head *dispatch; diff --git a/drivers/net/ethernet/cavium/liquidio/octeon_droq.h b/drivers/net/ethernet/cavium/liquidio/octeon_droq.h index f91bc84d1719..815a9f56fd59 100644 --- a/drivers/net/ethernet/cavium/liquidio/octeon_droq.h +++ b/drivers/net/ethernet/cavium/liquidio/octeon_droq.h @@ -400,6 +400,9 @@ int octeon_register_dispatch_fn(struct octeon_device *oct, u16 subcode, octeon_dispatch_fn_t fn, void *fn_arg); +void *octeon_get_dispatch_arg(struct octeon_device *oct, + u16 opcode, u16 subcode); + void octeon_droq_print_stats(void); u32 octeon_droq_check_hw_for_pkts(struct octeon_droq *droq); |