diff options
| author | Srikanth Jampala <Jampala.Srikanth@cavium.com> | 2018-08-22 12:40:52 +0530 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2018-08-25 19:50:44 +0800 |
| commit | 3d7c82060d1fe65bde4023aac41a0b1bd7718e07 (patch) | |
| tree | dedb0fda56b347d8bd3d7ca124ca17c68d36d0a2 /drivers/crypto/cavium/nitrox/nitrox_lib.c | |
| parent | 0522236d4f9c5ab2e79889cb020d1acbe5da416e (diff) | |
| download | linux-3d7c82060d1fe65bde4023aac41a0b1bd7718e07.tar.bz2 | |
crypto: cavium/nitrox - fix for command corruption in queue full case with backlog submissions.
Earlier used to post the current command without checking queue full
after backlog submissions. So, post the current command only after
confirming the space in queue after backlog submissions.
Maintain host write index instead of reading device registers
to get the next free slot to post the command.
Return -ENOSPC in queue full case.
Signed-off-by: Srikanth Jampala <Jampala.Srikanth@cavium.com>
Reviewed-by: Gadam Sreerama <sgadam@cavium.com>
Tested-by: Jha, Chandan <Chandan.Jha@cavium.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/cavium/nitrox/nitrox_lib.c')
| -rw-r--r-- | drivers/crypto/cavium/nitrox/nitrox_lib.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/crypto/cavium/nitrox/nitrox_lib.c b/drivers/crypto/cavium/nitrox/nitrox_lib.c index ebe267379ac9..4d31df07777f 100644 --- a/drivers/crypto/cavium/nitrox/nitrox_lib.c +++ b/drivers/crypto/cavium/nitrox/nitrox_lib.c @@ -36,6 +36,7 @@ static int cmdq_common_init(struct nitrox_cmdq *cmdq) cmdq->head = PTR_ALIGN(cmdq->head_unaligned, PKT_IN_ALIGN); cmdq->dma = PTR_ALIGN(cmdq->dma_unaligned, PKT_IN_ALIGN); cmdq->qsize = (qsize + PKT_IN_ALIGN); + cmdq->write_idx = 0; spin_lock_init(&cmdq->response_lock); spin_lock_init(&cmdq->cmdq_lock); |