@@ -6,21 +6,22 @@
; the features table in the documentation.
;
[Features]
-HW Accelerated =
-CPU SSE =
-CPU AVX =
-CPU AVX2 =
-CPU AVX512 =
-CPU NEON =
-Stateful =
-Pass-through =
-OOP SGL In SGL Out =
-OOP SGL In LB Out =
-OOP LB In SGL Out =
-Deflate =
-LZS =
-Adler32 =
-Crc32 =
-Adler32&Crc32 =
-Fixed =
-Dynamic =
+HW Accelerated =
+CPU SSE =
+CPU AVX =
+CPU AVX2 =
+CPU AVX512 =
+CPU NEON =
+Stateful Compression =
+Stateful Decompression =
+Pass-through =
+OOP SGL In SGL Out =
+OOP SGL In LB Out =
+OOP LB In SGL Out =
+Deflate =
+LZS =
+Adler32 =
+Crc32 =
+Adler32&Crc32 =
+Fixed =
+Dynamic =
@@ -4,13 +4,14 @@
; Supported features of 'QAT' compression driver.
;
[Features]
-HW Accelerated = Y
-OOP SGL In SGL Out = Y
-OOP SGL In LB Out = Y
-OOP LB In SGL Out = Y
-Deflate = Y
-Adler32 = Y
-Crc32 = Y
-Adler32&Crc32 = Y
-Fixed = Y
-Dynamic = Y
+HW Accelerated = Y
+Stateful Decompression = Y
+OOP SGL In SGL Out = Y
+OOP SGL In LB Out = Y
+OOP LB In SGL Out = Y
+Deflate = Y
+Adler32 = Y
+Crc32 = Y
+Adler32&Crc32 = Y
+Fixed = Y
+Dynamic = Y
@@ -29,6 +29,10 @@ Checksum generation:
* CRC32, Adler and combined checksum
+Stateful operation:
+
+ * Decompression only
+
Limitations
-----------
@@ -38,6 +42,7 @@ Limitations
* When using Deflate dynamic huffman encoding for compression, the input size (op.src.length)
must be < CONFIG_RTE_PMD_QAT_COMP_IM_BUFFER_SIZE from the config file,
see :ref:`building_qat_config` for more details.
+* Stateful compression is not supported.
Installation
@@ -56,6 +56,10 @@ New Features
Also, make sure to start the actual text at the margin.
=========================================================
+* **Updated the Intel QuickAssist Technology (QAT) compression PMD.**
+
+ Added stateful decompression support in the Intel QuickAssist Technology PMD.
+ Please note that stateful compression is not supported.
Removed Items
-------------
@@ -27,22 +27,51 @@ qat_comp_build_request(void *in_op, uint8_t *out_msg,
struct rte_comp_op *op = in_op;
struct qat_comp_op_cookie *cookie =
(struct qat_comp_op_cookie *)op_cookie;
- struct qat_comp_xform *qat_xform = op->private_xform;
- const uint8_t *tmpl = (uint8_t *)&qat_xform->qat_comp_req_tmpl;
+ struct qat_comp_stream *stream;
+ struct qat_comp_xform *qat_xform;
+ const uint8_t *tmpl;
struct icp_qat_fw_comp_req *comp_req =
(struct icp_qat_fw_comp_req *)out_msg;
- if (unlikely(op->op_type != RTE_COMP_OP_STATELESS)) {
- QAT_DP_LOG(ERR, "QAT PMD only supports stateless compression "
- "operation requests, op (%p) is not a "
- "stateless operation.", op);
- op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;
- return -EINVAL;
+ if (op->op_type == RTE_COMP_OP_STATEFUL) {
+ stream = op->stream;
+ qat_xform = &stream->qat_xform;
+ if (unlikely(qat_xform->qat_comp_request_type !=
+ QAT_COMP_REQUEST_DECOMPRESS)) {
+ QAT_DP_LOG(ERR, "QAT PMD does not support stateful compression");
+ op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;
+ return -EINVAL;
+ }
+ if (unlikely(stream->op_in_progress)) {
+ QAT_DP_LOG(ERR, "QAT PMD does not support running multiple stateful operations on the same stream at once");
+ op->status = RTE_COMP_OP_STATUS_INVALID_STATE;
+ return -EINVAL;
+ }
+ stream->op_in_progress = 1;
+ } else {
+ stream = NULL;
+ qat_xform = op->private_xform;
}
+ tmpl = (uint8_t *)&qat_xform->qat_comp_req_tmpl;
rte_mov128(out_msg, tmpl);
comp_req->comn_mid.opaque_data = (uint64_t)(uintptr_t)op;
+ if (op->op_type == RTE_COMP_OP_STATEFUL) {
+ comp_req->comp_pars.req_par_flags =
+ ICP_QAT_FW_COMP_REQ_PARAM_FLAGS_BUILD(
+ (stream->start_of_packet) ?
+ ICP_QAT_FW_COMP_SOP
+ : ICP_QAT_FW_COMP_NOT_SOP,
+ (op->flush_flag == RTE_COMP_FLUSH_FULL ||
+ op->flush_flag == RTE_COMP_FLUSH_FINAL) ?
+ ICP_QAT_FW_COMP_EOP
+ : ICP_QAT_FW_COMP_NOT_EOP,
+ ICP_QAT_FW_COMP_NOT_BFINAL,
+ ICP_QAT_FW_COMP_NO_CNV,
+ ICP_QAT_FW_COMP_NO_CNV_RECOVERY);
+ }
+
if (likely(qat_xform->qat_comp_request_type ==
QAT_COMP_REQUEST_DYNAMIC_COMP_STATELESS)) {
if (unlikely(op->src.length > QAT_FALLBACK_THLD)) {
@@ -94,6 +123,9 @@ qat_comp_build_request(void *in_op, uint8_t *out_msg,
" for %d elements of SGL",
op->m_src->nb_segs);
op->status = RTE_COMP_OP_STATUS_ERROR;
+ /* clear op-in-progress flag */
+ if (stream)
+ stream->op_in_progress = 0;
return -ENOMEM;
}
/* new SGL is valid now */
@@ -111,6 +143,9 @@ qat_comp_build_request(void *in_op, uint8_t *out_msg,
if (ret) {
QAT_DP_LOG(ERR, "QAT PMD Cannot fill source sgl array");
op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;
+ /* clear op-in-progress flag */
+ if (stream)
+ stream->op_in_progress = 0;
return ret;
}
@@ -129,6 +164,9 @@ qat_comp_build_request(void *in_op, uint8_t *out_msg,
" for %d elements of SGL",
op->m_dst->nb_segs);
op->status = RTE_COMP_OP_STATUS_ERROR;
+ /* clear op-in-progress flag */
+ if (stream)
+ stream->op_in_progress = 0;
return -ENOMEM;
}
/* new SGL is valid now */
@@ -146,6 +184,9 @@ qat_comp_build_request(void *in_op, uint8_t *out_msg,
if (ret) {
QAT_DP_LOG(ERR, "QAT PMD Cannot fill dest. sgl array");
op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;
+ /* clear op-in-progress flag */
+ if (stream)
+ stream->op_in_progress = 0;
return ret;
}
@@ -202,12 +243,22 @@ qat_comp_process_response(void **op, uint8_t *resp, void *op_cookie,
(struct qat_comp_op_cookie *)op_cookie;
struct rte_comp_op *rx_op = (struct rte_comp_op *)(uintptr_t)
(resp_msg->opaque_data);
- struct qat_comp_xform *qat_xform = (struct qat_comp_xform *)
- (rx_op->private_xform);
+ struct qat_comp_stream *stream;
+ struct qat_comp_xform *qat_xform;
int err = resp_msg->comn_resp.comn_status &
((1 << QAT_COMN_RESP_CMP_STATUS_BITPOS) |
(1 << QAT_COMN_RESP_XLAT_STATUS_BITPOS));
+ if (rx_op->op_type == RTE_COMP_OP_STATEFUL) {
+ stream = rx_op->stream;
+ qat_xform = &stream->qat_xform;
+ /* clear op-in-progress flag */
+ stream->op_in_progress = 0;
+ } else {
+ stream = NULL;
+ qat_xform = rx_op->private_xform;
+ }
+
#if RTE_LOG_DP_LEVEL >= RTE_LOG_DEBUG
QAT_DP_LOG(DEBUG, "Direction: %s",
qat_xform->qat_comp_request_type == QAT_COMP_REQUEST_DECOMPRESS ?
@@ -254,7 +305,21 @@ qat_comp_process_response(void **op, uint8_t *resp, void *op_cookie,
int8_t xlat_err_code =
(int8_t)resp_msg->comn_resp.comn_error.xlat_err_code;
- if ((cmp_err_code == ERR_CODE_OVERFLOW_ERROR && !xlat_err_code)
+ /* handle recoverable out-of-buffer condition in stateful */
+ /* decompression scenario */
+ if (cmp_err_code == ERR_CODE_OVERFLOW_ERROR && !xlat_err_code
+ && qat_xform->qat_comp_request_type
+ == QAT_COMP_REQUEST_DECOMPRESS
+ && rx_op->op_type == RTE_COMP_OP_STATEFUL) {
+ struct icp_qat_fw_resp_comp_pars *comp_resp =
+ &resp_msg->comp_resp_pars;
+ rx_op->status =
+ RTE_COMP_OP_STATUS_OUT_OF_SPACE_RECOVERABLE;
+ rx_op->consumed = comp_resp->input_byte_counter;
+ rx_op->produced = comp_resp->output_byte_counter;
+ stream->start_of_packet = 0;
+ } else if ((cmp_err_code == ERR_CODE_OVERFLOW_ERROR
+ && !xlat_err_code)
||
(!cmp_err_code && xlat_err_code == ERR_CODE_OVERFLOW_ERROR)
||
@@ -275,6 +340,8 @@ qat_comp_process_response(void **op, uint8_t *resp, void *op_cookie,
rx_op->status = RTE_COMP_OP_STATUS_SUCCESS;
rx_op->consumed = comp_resp->input_byte_counter;
rx_op->produced = comp_resp->output_byte_counter;
+ if (stream)
+ stream->start_of_packet = 0;
if (qat_xform->checksum_type != RTE_COMP_CHECKSUM_NONE) {
if (qat_xform->checksum_type == RTE_COMP_CHECKSUM_CRC32)
@@ -297,6 +364,12 @@ qat_comp_xform_size(void)
return RTE_ALIGN_CEIL(sizeof(struct qat_comp_xform), 8);
}
+unsigned int
+qat_comp_stream_size(void)
+{
+ return RTE_ALIGN_CEIL(sizeof(struct qat_comp_stream), 8);
+}
+
static void qat_comp_create_req_hdr(struct icp_qat_fw_comn_req_hdr *header,
enum qat_comp_request_type request)
{
@@ -317,7 +390,9 @@ static void qat_comp_create_req_hdr(struct icp_qat_fw_comn_req_hdr *header,
static int qat_comp_create_templates(struct qat_comp_xform *qat_xform,
const struct rte_memzone *interm_buff_mz,
- const struct rte_comp_xform *xform)
+ const struct rte_comp_xform *xform,
+ const struct qat_comp_stream *stream,
+ enum rte_comp_op_type op_type)
{
struct icp_qat_fw_comp_req *comp_req;
int comp_level, algo;
@@ -329,6 +404,18 @@ static int qat_comp_create_templates(struct qat_comp_xform *qat_xform,
return -EINVAL;
}
+ if (op_type == RTE_COMP_OP_STATEFUL) {
+ if (unlikely(stream == NULL)) {
+ QAT_LOG(ERR, "Stream must be non null for stateful op");
+ return -EINVAL;
+ }
+ if (unlikely(qat_xform->qat_comp_request_type !=
+ QAT_COMP_REQUEST_DECOMPRESS)) {
+ QAT_LOG(ERR, "QAT PMD does not support stateful compression");
+ return -ENOTSUP;
+ }
+ }
+
if (qat_xform->qat_comp_request_type == QAT_COMP_REQUEST_DECOMPRESS) {
direction = ICP_QAT_HW_COMPRESSION_DIR_DECOMPRESS;
comp_level = ICP_QAT_HW_COMPRESSION_DEPTH_1;
@@ -376,12 +463,43 @@ static int qat_comp_create_templates(struct qat_comp_xform *qat_xform,
qat_comp_create_req_hdr(&comp_req->comn_hdr,
qat_xform->qat_comp_request_type);
- comp_req->comn_hdr.serv_specif_flags = ICP_QAT_FW_COMP_FLAGS_BUILD(
- ICP_QAT_FW_COMP_STATELESS_SESSION,
- ICP_QAT_FW_COMP_NOT_AUTO_SELECT_BEST,
- ICP_QAT_FW_COMP_NOT_ENH_AUTO_SELECT_BEST,
- ICP_QAT_FW_COMP_NOT_DISABLE_TYPE0_ENH_AUTO_SELECT_BEST,
- ICP_QAT_FW_COMP_ENABLE_SECURE_RAM_USED_AS_INTMD_BUF);
+ if (op_type == RTE_COMP_OP_STATEFUL) {
+ comp_req->comn_hdr.serv_specif_flags =
+ ICP_QAT_FW_COMP_FLAGS_BUILD(
+ ICP_QAT_FW_COMP_STATEFUL_SESSION,
+ ICP_QAT_FW_COMP_NOT_AUTO_SELECT_BEST,
+ ICP_QAT_FW_COMP_NOT_ENH_AUTO_SELECT_BEST,
+ ICP_QAT_FW_COMP_NOT_DISABLE_TYPE0_ENH_AUTO_SELECT_BEST,
+ ICP_QAT_FW_COMP_ENABLE_SECURE_RAM_USED_AS_INTMD_BUF);
+
+ /* Decompression state registers */
+ comp_req->comp_cd_ctrl.comp_state_addr =
+ stream->state_registers_decomp_phys;
+
+ /* Enable A, B, C, D, and E (CAMs). */
+ comp_req->comp_cd_ctrl.ram_bank_flags =
+ ICP_QAT_FW_COMP_RAM_FLAGS_BUILD(
+ ICP_QAT_FW_COMP_BANK_DISABLED, /* Bank I */
+ ICP_QAT_FW_COMP_BANK_DISABLED, /* Bank H */
+ ICP_QAT_FW_COMP_BANK_DISABLED, /* Bank G */
+ ICP_QAT_FW_COMP_BANK_DISABLED, /* Bank F */
+ ICP_QAT_FW_COMP_BANK_ENABLED, /* Bank E */
+ ICP_QAT_FW_COMP_BANK_ENABLED, /* Bank D */
+ ICP_QAT_FW_COMP_BANK_ENABLED, /* Bank C */
+ ICP_QAT_FW_COMP_BANK_ENABLED, /* Bank B */
+ ICP_QAT_FW_COMP_BANK_ENABLED); /* Bank A */
+
+ comp_req->comp_cd_ctrl.ram_banks_addr =
+ stream->inflate_context_phys;
+ } else {
+ comp_req->comn_hdr.serv_specif_flags =
+ ICP_QAT_FW_COMP_FLAGS_BUILD(
+ ICP_QAT_FW_COMP_STATELESS_SESSION,
+ ICP_QAT_FW_COMP_NOT_AUTO_SELECT_BEST,
+ ICP_QAT_FW_COMP_NOT_ENH_AUTO_SELECT_BEST,
+ ICP_QAT_FW_COMP_NOT_DISABLE_TYPE0_ENH_AUTO_SELECT_BEST,
+ ICP_QAT_FW_COMP_ENABLE_SECURE_RAM_USED_AS_INTMD_BUF);
+ }
comp_req->cd_pars.sl.comp_slice_cfg_word[0] =
ICP_QAT_HW_COMPRESSION_CONFIG_BUILD(
@@ -497,7 +615,8 @@ qat_comp_private_xform_create(struct rte_compressdev *dev,
qat_xform->checksum_type = xform->decompress.chksum;
}
- if (qat_comp_create_templates(qat_xform, qat->interm_buff_mz, xform)) {
+ if (qat_comp_create_templates(qat_xform, qat->interm_buff_mz, xform,
+ NULL, RTE_COMP_OP_STATELESS)) {
QAT_LOG(ERR, "QAT: Problem with setting compression");
return -EINVAL;
}
@@ -532,3 +651,102 @@ qat_comp_private_xform_free(struct rte_compressdev *dev __rte_unused,
}
return -EINVAL;
}
+
+/**
+ * Reset stream state for the next use.
+ *
+ * @param stream
+ * handle of pmd's private stream data
+ */
+static void
+qat_comp_stream_reset(struct qat_comp_stream *stream)
+{
+ if (stream) {
+ memset(&stream->qat_xform, 0, sizeof(struct qat_comp_xform));
+ stream->start_of_packet = 1;
+ stream->op_in_progress = 0;
+ }
+}
+
+/**
+ * Create driver private stream data.
+ *
+ * @param dev
+ * Compressdev device
+ * @param xform
+ * xform data
+ * @param stream
+ * ptr where handle of pmd's private stream data should be stored
+ * @return
+ * - Returns 0 if private stream structure has been created successfully.
+ * - Returns -EINVAL if input parameters are invalid.
+ * - Returns -ENOTSUP if comp device does not support STATEFUL operations.
+ * - Returns -ENOTSUP if comp device does not support the comp transform.
+ * - Returns -ENOMEM if the private stream could not be allocated.
+ */
+int
+qat_comp_stream_create(struct rte_compressdev *dev,
+ const struct rte_comp_xform *xform,
+ void **stream)
+{
+ struct qat_comp_dev_private *qat = dev->data->dev_private;
+ struct qat_comp_stream *ptr;
+
+ if (unlikely(stream == NULL)) {
+ QAT_LOG(ERR, "QAT: stream parameter is NULL");
+ return -EINVAL;
+ }
+ if (unlikely(xform->type == RTE_COMP_COMPRESS)) {
+ QAT_LOG(ERR, "QAT: stateful compression not supported");
+ return -ENOTSUP;
+ }
+ if (unlikely(qat->streampool == NULL)) {
+ QAT_LOG(ERR, "QAT device has no stream mempool");
+ return -ENOMEM;
+ }
+ if (rte_mempool_get(qat->streampool, stream)) {
+ QAT_LOG(ERR, "Couldn't get object from qat stream mempool");
+ return -ENOMEM;
+ }
+
+ ptr = (struct qat_comp_stream *) *stream;
+ qat_comp_stream_reset(ptr);
+ ptr->qat_xform.qat_comp_request_type = QAT_COMP_REQUEST_DECOMPRESS;
+ ptr->qat_xform.checksum_type = xform->decompress.chksum;
+
+ if (qat_comp_create_templates(&ptr->qat_xform, qat->interm_buff_mz,
+ xform, ptr, RTE_COMP_OP_STATEFUL)) {
+ QAT_LOG(ERR, "QAT: problem with creating descriptor template for stream");
+ rte_mempool_put(qat->streampool, *stream);
+ *stream = NULL;
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/**
+ * Free driver private stream data.
+ *
+ * @param dev
+ * Compressdev device
+ * @param stream
+ * handle of pmd's private stream data
+ * @return
+ * - 0 if successful
+ * - <0 in error cases
+ * - Returns -EINVAL if input parameters are invalid.
+ * - Returns -ENOTSUP if comp device does not support STATEFUL operations.
+ * - Returns -EBUSY if can't free stream as there are inflight operations
+ */
+int
+qat_comp_stream_free(struct rte_compressdev *dev, void *stream)
+{
+ if (stream) {
+ struct qat_comp_dev_private *qat = dev->data->dev_private;
+ qat_comp_stream_reset((struct qat_comp_stream *) stream);
+ rte_mempool_put(qat->streampool, stream);
+ return 0;
+ }
+ return -EINVAL;
+}
@@ -26,6 +26,16 @@
#define QAT_MIN_OUT_BUF_SIZE 46
+/* maximum size of the state registers */
+#define QAT_STATE_REGISTERS_MAX_SIZE 64
+
+/* decompressor context size */
+#define QAT_INFLATE_CONTEXT_SIZE_GEN1 36864
+#define QAT_INFLATE_CONTEXT_SIZE_GEN2 34032
+#define QAT_INFLATE_CONTEXT_SIZE_GEN3 34032
+#define QAT_INFLATE_CONTEXT_SIZE RTE_MAX(RTE_MAX(QAT_INFLATE_CONTEXT_SIZE_GEN1,\
+ QAT_INFLATE_CONTEXT_SIZE_GEN2), QAT_INFLATE_CONTEXT_SIZE_GEN3)
+
enum qat_comp_request_type {
QAT_COMP_REQUEST_FIXED_COMP_STATELESS,
QAT_COMP_REQUEST_DYNAMIC_COMP_STATELESS,
@@ -61,6 +71,17 @@ struct qat_comp_xform {
enum rte_comp_checksum_type checksum_type;
};
+struct qat_comp_stream {
+ struct qat_comp_xform qat_xform;
+ void *state_registers_decomp;
+ phys_addr_t state_registers_decomp_phys;
+ void *inflate_context;
+ phys_addr_t inflate_context_phys;
+ const struct rte_memzone *memzone;
+ uint8_t start_of_packet;
+ volatile uint8_t op_in_progress;
+};
+
int
qat_comp_build_request(void *in_op, uint8_t *out_msg, void *op_cookie,
enum qat_device_gen qat_dev_gen __rte_unused);
@@ -80,5 +101,16 @@ qat_comp_private_xform_free(struct rte_compressdev *dev, void *private_xform);
unsigned int
qat_comp_xform_size(void);
+unsigned int
+qat_comp_stream_size(void);
+
+int
+qat_comp_stream_create(struct rte_compressdev *dev,
+ const struct rte_comp_xform *xform,
+ void **stream);
+
+int
+qat_comp_stream_free(struct rte_compressdev *dev, void *stream);
+
#endif
#endif
@@ -9,6 +9,12 @@
#define QAT_PMD_COMP_SGL_DEF_SEGMENTS 16
+struct stream_create_info {
+ struct qat_comp_dev_private *comp_dev;
+ int socket_id;
+ int error;
+};
+
static const struct rte_compressdev_capabilities qat_comp_gen_capabilities[] = {
{/* COMPRESSION - deflate */
.algo = RTE_COMP_ALGO_DEFLATE,
@@ -21,7 +27,8 @@ static const struct rte_compressdev_capabilities qat_comp_gen_capabilities[] = {
RTE_COMP_FF_HUFFMAN_DYNAMIC |
RTE_COMP_FF_OOP_SGL_IN_SGL_OUT |
RTE_COMP_FF_OOP_SGL_IN_LB_OUT |
- RTE_COMP_FF_OOP_LB_IN_SGL_OUT,
+ RTE_COMP_FF_OOP_LB_IN_SGL_OUT |
+ RTE_COMP_FF_STATEFUL_DECOMPRESSION,
.window_size = {.min = 15, .max = 15, .increment = 0} },
{RTE_COMP_ALGO_LIST_END, 0, {0, 0, 0} } };
@@ -315,6 +322,120 @@ qat_comp_create_xform_pool(struct qat_comp_dev_private *comp_dev,
return mp;
}
+static void
+qat_comp_stream_init(struct rte_mempool *mp __rte_unused, void *opaque,
+ void *obj, unsigned int obj_idx)
+{
+ struct stream_create_info *info = opaque;
+ struct qat_comp_stream *stream = obj;
+ char mz_name[RTE_MEMZONE_NAMESIZE];
+ const struct rte_memzone *memzone;
+ struct qat_inter_sgl *ram_banks_desc;
+
+ /* find a memzone for RAM banks */
+ snprintf(mz_name, RTE_MEMZONE_NAMESIZE, "%s_%u_rambanks",
+ info->comp_dev->qat_dev->name, obj_idx);
+ memzone = rte_memzone_lookup(mz_name);
+ if (memzone == NULL) {
+ /* allocate a memzone for compression state and RAM banks */
+ memzone = rte_memzone_reserve_aligned(mz_name,
+ QAT_STATE_REGISTERS_MAX_SIZE
+ + sizeof(struct qat_inter_sgl)
+ + QAT_INFLATE_CONTEXT_SIZE,
+ info->socket_id,
+ RTE_MEMZONE_IOVA_CONTIG, QAT_64_BYTE_ALIGN);
+ if (memzone == NULL) {
+ QAT_LOG(ERR,
+ "Can't allocate RAM banks for device %s, object %u",
+ info->comp_dev->qat_dev->name, obj_idx);
+ info->error = -ENOMEM;
+ return;
+ }
+ }
+
+ /* prepare the buffer list descriptor for RAM banks */
+ ram_banks_desc = (struct qat_inter_sgl *)
+ (((uint8_t *) memzone->addr) + QAT_STATE_REGISTERS_MAX_SIZE);
+ ram_banks_desc->num_bufs = 1;
+ ram_banks_desc->buffers[0].len = QAT_INFLATE_CONTEXT_SIZE;
+ ram_banks_desc->buffers[0].addr = memzone->iova
+ + QAT_STATE_REGISTERS_MAX_SIZE
+ + sizeof(struct qat_inter_sgl);
+
+ memset(stream, 0, qat_comp_stream_size());
+ stream->memzone = memzone;
+ stream->state_registers_decomp = memzone->addr;
+ stream->state_registers_decomp_phys = memzone->iova;
+ stream->inflate_context = ((uint8_t *) memzone->addr)
+ + QAT_STATE_REGISTERS_MAX_SIZE;
+ stream->inflate_context_phys = memzone->iova
+ + QAT_STATE_REGISTERS_MAX_SIZE;
+}
+
+static void
+qat_comp_stream_destroy(struct rte_mempool *mp __rte_unused,
+ void *opaque __rte_unused, void *obj,
+ unsigned obj_idx __rte_unused)
+{
+ struct qat_comp_stream *stream = obj;
+
+ rte_memzone_free(stream->memzone);
+}
+
+static struct rte_mempool *
+qat_comp_create_stream_pool(struct qat_comp_dev_private *comp_dev,
+ int socket_id,
+ uint32_t num_elements)
+{
+ char stream_pool_name[RTE_MEMPOOL_NAMESIZE];
+ struct rte_mempool *mp;
+
+ snprintf(stream_pool_name, RTE_MEMPOOL_NAMESIZE,
+ "%s_streams", comp_dev->qat_dev->name);
+
+ QAT_LOG(DEBUG, "streampool: %s", stream_pool_name);
+ mp = rte_mempool_lookup(stream_pool_name);
+
+ if (mp != NULL) {
+ QAT_LOG(DEBUG, "streampool already created");
+ if (mp->size != num_elements) {
+ QAT_LOG(DEBUG, "streampool wrong size - delete it");
+ rte_mempool_obj_iter(mp, qat_comp_stream_destroy, NULL);
+ rte_mempool_free(mp);
+ mp = NULL;
+ comp_dev->streampool = NULL;
+ }
+ }
+
+ if (mp == NULL) {
+ struct stream_create_info info = {
+ .comp_dev = comp_dev,
+ .socket_id = socket_id,
+ .error = 0
+ };
+ mp = rte_mempool_create(stream_pool_name,
+ num_elements,
+ qat_comp_stream_size(), 0, 0,
+ NULL, NULL, qat_comp_stream_init, &info,
+ socket_id, 0);
+ if (mp == NULL) {
+ QAT_LOG(ERR,
+ "Err creating mempool %s w %d elements of size %d",
+ stream_pool_name, num_elements,
+ qat_comp_stream_size());
+ } else if (info.error) {
+ rte_mempool_obj_iter(mp, qat_comp_stream_destroy, NULL);
+ QAT_LOG(ERR,
+ "Destoying mempool %s as at least one element failed initialisation",
+ stream_pool_name);
+ rte_mempool_free(mp);
+ mp = NULL;
+ }
+ }
+
+ return mp;
+}
+
static void
_qat_comp_dev_config_clear(struct qat_comp_dev_private *comp_dev)
{
@@ -330,6 +451,14 @@ _qat_comp_dev_config_clear(struct qat_comp_dev_private *comp_dev)
rte_mempool_free(comp_dev->xformpool);
comp_dev->xformpool = NULL;
}
+
+ /* Free stream pool */
+ if (comp_dev->streampool) {
+ rte_mempool_obj_iter(comp_dev->streampool,
+ qat_comp_stream_destroy, NULL);
+ rte_mempool_free(comp_dev->streampool);
+ comp_dev->streampool = NULL;
+ }
}
static int
@@ -339,12 +468,6 @@ qat_comp_dev_config(struct rte_compressdev *dev,
struct qat_comp_dev_private *comp_dev = dev->data->dev_private;
int ret = 0;
- if (config->max_nb_streams != 0) {
- QAT_LOG(ERR,
- "QAT device does not support STATEFUL so max_nb_streams must be 0");
- return -EINVAL;
- }
-
if (RTE_PMD_QAT_COMP_IM_BUFFER_SIZE == 0) {
QAT_LOG(WARNING,
"RTE_PMD_QAT_COMP_IM_BUFFER_SIZE = 0 in config file, so"
@@ -360,13 +483,26 @@ qat_comp_dev_config(struct rte_compressdev *dev,
}
}
- comp_dev->xformpool = qat_comp_create_xform_pool(comp_dev, config,
- config->max_nb_priv_xforms);
- if (comp_dev->xformpool == NULL) {
+ if (config->max_nb_priv_xforms) {
+ comp_dev->xformpool = qat_comp_create_xform_pool(comp_dev,
+ config, config->max_nb_priv_xforms);
+ if (comp_dev->xformpool == NULL) {
+ ret = -ENOMEM;
+ goto error_out;
+ }
+ } else
+ comp_dev->xformpool = NULL;
+
+ if (config->max_nb_streams) {
+ comp_dev->streampool = qat_comp_create_stream_pool(comp_dev,
+ config->socket_id, config->max_nb_streams);
+ if (comp_dev->streampool == NULL) {
+ ret = -ENOMEM;
+ goto error_out;
+ }
+ } else
+ comp_dev->streampool = NULL;
- ret = -ENOMEM;
- goto error_out;
- }
return 0;
error_out:
@@ -508,7 +644,9 @@ static struct rte_compressdev_ops compress_qat_ops = {
/* Compression related operations */
.private_xform_create = qat_comp_private_xform_create,
- .private_xform_free = qat_comp_private_xform_free
+ .private_xform_free = qat_comp_private_xform_free,
+ .stream_create = qat_comp_stream_create,
+ .stream_free = qat_comp_stream_free
};
/* An rte_driver is needed in the registration of the device with compressdev.
@@ -30,6 +30,8 @@ struct qat_comp_dev_private {
/**< The device's memory for intermediate buffers */
struct rte_mempool *xformpool;
/**< The device's pool for qat_comp_xforms */
+ struct rte_mempool *streampool;
+ /**< The device's pool for qat_comp_streams */
};
int