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charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Acked-by: Kai Ji ________________________________ From: Nicolau, Radu Sent: Tuesday, December 02, 2025 10:57 To: dev@dpdk.org Cc: Nicolau, Radu ; stable@dpdk.org ; Ji, Kai Subject: [PATCH] crypto/qat: align the the vector address Align the vector address rather than computed source address to make sure the alignment is properly propagated. Fixes: 253174309ff7 ("crypto/qat: fix source buffer alignment") Cc: stable@dpdk.org Signed-off-by: Radu Nicolau --- drivers/crypto/qat/dev/qat_crypto_pmd_gens.h | 33 +++++++++----------- 1 file changed, 15 insertions(+), 18 deletions(-) diff --git a/drivers/crypto/qat/dev/qat_crypto_pmd_gens.h b/drivers/crypto/= qat/dev/qat_crypto_pmd_gens.h index 67dc889b50..22ee0fe4fe 100644 --- a/drivers/crypto/qat/dev/qat_crypto_pmd_gens.h +++ b/drivers/crypto/qat/dev/qat_crypto_pmd_gens.h @@ -443,6 +443,21 @@ qat_sym_build_req_set_data(struct icp_qat_fw_la_bulk_r= eq *req, n_dst > QAT_SYM_SGL_MAX_NUMBER)) return -1; + /* For crypto API only: try to align the in-place buffers*/ + if (op !=3D NULL && likely(n_dst =3D=3D 0) && likely(!is_sgl)) { + rte_iova_t offset =3D src_vec[0].iova & RTE_CACHE_LINE_MASK= ; + if (offset) { + rte_iova_t buff_addr =3D rte_mbuf_iova_get(op->sym-= >m_src); + /* make sure src_data_start is still within the buf= fer */ + if (src_vec[0].iova - offset >=3D buff_addr) { + src_vec[0].iova -=3D offset; + src_vec[0].len +=3D offset; + ofs->ofs.auth.head +=3D offset; + ofs->ofs.cipher.head +=3D offset; + } + } + } + if (likely(!is_sgl)) { src_data_start =3D src_vec[0].iova; tl_src =3D total_len_src =3D @@ -503,24 +518,6 @@ qat_sym_build_req_set_data(struct icp_qat_fw_la_bulk_r= eq *req, dst_data_start =3D src_data_start; } - /* For crypto API only try to align the in-place buffers*/ - if (op !=3D NULL && likely(n_dst =3D=3D 0)) { - uint16_t offset =3D src_data_start & RTE_CACHE_LINE_MASK; - if (offset) { - rte_iova_t buff_addr =3D rte_mbuf_iova_get(op->sym-= >m_src); - /* make sure src_data_start is still within the buf= fer */ - if (src_data_start - offset >=3D buff_addr) { - src_data_start -=3D offset; - dst_data_start =3D src_data_start; - ofs->ofs.auth.head +=3D offset; - ofs->ofs.cipher.head +=3D offset; - tl_src +=3D offset; - total_len_src =3D tl_src; - total_len_dst =3D tl_src; - } - } - } - req->comn_mid.src_data_addr =3D src_data_start; req->comn_mid.dest_data_addr =3D dst_data_start; req->comn_mid.src_length =3D total_len_src; -- 2.50.1 --_000_DS0PR11MB7458A283A8B07A869A7C1FAF81A6ADS0PR11MB7458namp_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Acked-by: Kai Ji <kai.ji@intel.com>


From: Nicolau, Radu <radu.nicolau@intel.com>
Sent: Tuesday, December 02, 2025 10:57
To: dev@dpdk.org <dev@dpdk.org>
Cc: Nicolau, Radu <radu.nicolau@intel.com>; stable@dpdk.o= rg <stable@dpdk.org>; Ji, Kai <kai.ji@intel.com>
Subject: [PATCH] crypto/qat: align the the vector address

Align the vector address rather than comput= ed source address to
make sure the alignment is properly propagated.

Fixes: 253174309ff7 ("crypto/qat: fix source buffer alignment") Cc: stable@dpdk.org

Signed-off-by: Radu Nicolau <radu.nicolau@intel.com>
---
 drivers/crypto/qat/dev/qat_crypto_pmd_gens.h | 33 +++++++++----------= -
 1 file changed, 15 insertions(+), 18 deletions(-)

diff --git a/drivers/crypto/qat/dev/qat_crypto_pmd_gens.h b/drivers/crypto/= qat/dev/qat_crypto_pmd_gens.h
index 67dc889b50..22ee0fe4fe 100644
--- a/drivers/crypto/qat/dev/qat_crypto_pmd_gens.h
+++ b/drivers/crypto/qat/dev/qat_crypto_pmd_gens.h
@@ -443,6 +443,21 @@ qat_sym_build_req_set_data(struct icp_qat_fw_la_bulk_r= eq *req,
            &nb= sp;            n_dst= > QAT_SYM_SGL_MAX_NUMBER))
            &nb= sp;    return -1;
 
+       /* For crypto API only: try to align = the in-place buffers*/
+       if (op !=3D NULL && likely(n_= dst =3D=3D 0) && likely(!is_sgl)) {
+            &n= bsp;  rte_iova_t offset =3D src_vec[0].iova & RTE_CACHE_LINE_MASK;=
+            &n= bsp;  if (offset) {
+            &n= bsp;          rte_iova_t buff_= addr =3D rte_mbuf_iova_get(op->sym->m_src);
+            &n= bsp;          /* make sure src= _data_start is still within the buffer */
+            &n= bsp;          if (src_vec[0].i= ova - offset >=3D buff_addr) {
+            &n= bsp;            = ;      src_vec[0].iova -=3D offset;
+            &n= bsp;            = ;      src_vec[0].len +=3D offset;
+            &n= bsp;            = ;      ofs->ofs.auth.head +=3D offset;
+            &n= bsp;            = ;      ofs->ofs.cipher.head +=3D offset;
+            &n= bsp;          }
+            &n= bsp;  }
+       }
+
         if (likely(!is_sgl)) {
            &nb= sp;    src_data_start =3D src_vec[0].iova;
            &nb= sp;    tl_src =3D total_len_src =3D
@@ -503,24 +518,6 @@ qat_sym_build_req_set_data(struct icp_qat_fw_la_bulk_r= eq *req,
            &nb= sp;            dst_d= ata_start =3D src_data_start;
         }
 
-       /* For crypto API only try to align t= he in-place buffers*/
-       if (op !=3D NULL && likely(n_= dst =3D=3D 0)) {
-            &n= bsp;  uint16_t offset =3D src_data_start & RTE_CACHE_LINE_MASK; -            &n= bsp;  if (offset) {
-            &n= bsp;          rte_iova_t buff_= addr =3D rte_mbuf_iova_get(op->sym->m_src);
-            &n= bsp;          /* make sure src= _data_start is still within the buffer */
-            &n= bsp;          if (src_data_sta= rt - offset >=3D buff_addr) {
-            &n= bsp;            = ;      src_data_start -=3D offset;
-            &n= bsp;            = ;      dst_data_start =3D src_data_start;
-            &n= bsp;            = ;      ofs->ofs.auth.head +=3D offset;
-            &n= bsp;            = ;      ofs->ofs.cipher.head +=3D offset;
-            &n= bsp;            = ;      tl_src +=3D offset;
-            &n= bsp;            = ;      total_len_src =3D tl_src;
-            &n= bsp;            = ;      total_len_dst =3D tl_src;
-            &n= bsp;          }
-            &n= bsp;  }
-       }
-
         req->comn_mid.src_data_= addr =3D src_data_start;
         req->comn_mid.dest_data= _addr =3D dst_data_start;
         req->comn_mid.src_lengt= h =3D total_len_src;
--
2.50.1

--_000_DS0PR11MB7458A283A8B07A869A7C1FAF81A6ADS0PR11MB7458namp_--