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DIR:OUT; SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 23 Feb 2022 13:31:53.2981 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 888e3fc9-f7d8-495b-1886-08d9f6d0dacc X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a; Ip=[12.22.5.238]; Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: DM6NAM11FT019.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR1201MB0076 X-BeenThere: stable@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: patches for DPDK stable branches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: stable-bounces@dpdk.org When trying to dequeue, an OP may fail due to insufficient space for the OP output, the compressdev API defines out-of-space for OP status. The driver can detect out-of-space errors and report them to the user. Check if hw_error_syndrome specifies out-of-space and set the OP status accordingly. Also added an error message for a case of missing B-final flag. Fixes: f8c97babc9f4 ("compress/mlx5: add data-path functions") Cc: stable@dpdk.org Signed-off-by: Raja Zidane --- Acked-by: Matan Azrad matan@nvidia.com drivers/common/mlx5/mlx5_prm.h | 5 +++++ drivers/compress/mlx5/mlx5_compress.c | 12 +++++++++++- 2 files changed, 16 insertions(+), 1 deletion(-) diff --git a/drivers/common/mlx5/mlx5_prm.h b/drivers/common/mlx5/mlx5_prm.h index 495b63191a..fc05734ecd 100644 --- a/drivers/common/mlx5/mlx5_prm.h +++ b/drivers/common/mlx5/mlx5_prm.h @@ -249,6 +249,9 @@ /* Maximum number of DS in WQE. Limited by 6-bit field. */ #define MLX5_DSEG_MAX 63 +/* The 32 bit syndrome offset in struct mlx5_err_cqe. */ +#define MLX5_ERROR_CQE_SYNDROME_OFFSET 52 + /* The completion mode offset in the WQE control segment line 2. */ #define MLX5_COMP_MODE_OFFSET 2 @@ -559,6 +562,8 @@ struct mlx5_rdma_write_wqe { #define MLX5_GGA_COMP_LOG_BLOCK_SIZE_MAX 15u #define MLX5_GGA_COMP_LOG_DYNAMIC_SIZE_MAX 15u #define MLX5_GGA_COMP_LOG_DYNAMIC_SIZE_MIN 0u +#define MLX5_GGA_COMP_OUT_OF_SPACE_SYNDROME_BE 0x29D0084 +#define MLX5_GGA_COMP_MISSING_BFINAL_SYNDROME_BE 0x29D0011 struct mlx5_wqe_metadata_seg { uint32_t mmo_control_31_0; /* mmo_control_63_32 is in ctrl_seg.imm */ diff --git a/drivers/compress/mlx5/mlx5_compress.c b/drivers/compress/mlx5/mlx5_compress.c index 7a482c3fbb..fc50b5bde9 100644 --- a/drivers/compress/mlx5/mlx5_compress.c +++ b/drivers/compress/mlx5/mlx5_compress.c @@ -562,7 +562,17 @@ mlx5_compress_cqe_err_handle(struct mlx5_compress_qp *qp, qp->qp.wqes; volatile struct mlx5_gga_compress_opaque *opaq = qp->opaque_mr.addr; - op->status = RTE_COMP_OP_STATUS_ERROR; + volatile uint32_t *synd_word = RTE_PTR_ADD(cqe, MLX5_ERROR_CQE_SYNDROME_OFFSET); + switch (*synd_word) { + case MLX5_GGA_COMP_OUT_OF_SPACE_SYNDROME_BE: + op->status = RTE_COMP_OP_STATUS_OUT_OF_SPACE_TERMINATED; + DRV_LOG(DEBUG, "OUT OF SPACE error, output is bigger than dst buffer."); + break; + case MLX5_GGA_COMP_MISSING_BFINAL_SYNDROME_BE: + DRV_LOG(DEBUG, "The last compressed block missed the B-final flag; maybe the compressed data is not complete or garbaged?"); + default: + op->status = RTE_COMP_OP_STATUS_ERROR; + } op->consumed = 0; op->produced = 0; op->output_chksum = 0; -- 2.21.0