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* [dpdk-dev] [PATCH] crypto/qat: fix null auth issues when using vfio_pci
@ 2019-08-09  9:29 Damian Nowak
  0 siblings, 0 replies; only message in thread
From: Damian Nowak @ 2019-08-09  9:29 UTC (permalink / raw)
  To: dev; +Cc: akhil.goyal, fiona.trahe, arkadiuszx.kusztal, Damian Nowak

When running auth NULL cases while using
vfio_pci, DMAR read/write faults appear. It
happens even if digest_length is set to 0.
This is caused by auth_res_addr initialized
as 0x0.

Fixes: 4e0955bddb08
Cc: Fiona Trahe <fiona.trahe@intel.com>

Signed-off-by: Damian Nowak <damianx.nowak@intel.com>
---
 drivers/crypto/qat/qat_sym.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/crypto/qat/qat_sym.c b/drivers/crypto/qat/qat_sym.c
index 46ef27a..6aa514c 100644
--- a/drivers/crypto/qat/qat_sym.c
+++ b/drivers/crypto/qat/qat_sym.c
@@ -307,9 +307,8 @@ qat_sym_build_request(void *in_op, uint8_t *out_msg,
 		}
 		min_ofs = auth_ofs;
 
-		if (likely(ctx->qat_hash_alg != ICP_QAT_HW_AUTH_ALGO_NULL))
-			auth_param->auth_res_addr =
-					op->sym->auth.digest.phys_addr;
+		auth_param->auth_res_addr =
+			op->sym->auth.digest.phys_addr;
 
 	}
 
-- 
2.7.4


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2019-08-09  9:29 [dpdk-dev] [PATCH] crypto/qat: fix null auth issues when using vfio_pci Damian Nowak

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