diff options
| author | Srujana Challa <schalla@marvell.com> | 2022-01-25 23:56:23 +0530 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2022-02-05 15:10:50 +1100 |
| commit | 9eef6e972a32bc2454a22e8f0e8d4e7f55ff6613 (patch) | |
| tree | 24211927ac8737cfe709f81595b5f0481989872b /drivers/net/ethernet/marvell/octeontx2 | |
| parent | bd9305b0cb69bfe98885a63a9e6231ae92e822e2 (diff) | |
crypto: octeontx2 - disable DMA black hole on an DMA fault
When CPT_AF_DIAG[FLT_DIS] = 0 and a CPT engine access to
LLC/DRAM encounters a fault/poison, a rare case may result
in unpredictable data being delivered to a CPT engine.
So, this patch adds code to set FLT_DIS as a workaround.
Signed-off-by: Srujana Challa <schalla@marvell.com>
Signed-off-by: Shijith Thotton <sthotton@marvell.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/net/ethernet/marvell/octeontx2')
| -rw-r--r-- | drivers/net/ethernet/marvell/octeontx2/af/rvu_cpt.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cpt.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cpt.c index a73a8017e0ee..a79201a9a6f0 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cpt.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cpt.c @@ -605,6 +605,7 @@ static bool is_valid_offset(struct rvu *rvu, struct cpt_rd_wr_reg_msg *req) } else if (!(req->hdr.pcifunc & RVU_PFVF_FUNC_MASK)) { /* Registers that can be accessed from PF */ switch (offset) { + case CPT_AF_DIAG: case CPT_AF_CTL: case CPT_AF_PF_FUNC: case CPT_AF_BLK_RST: |