/* SPDX-License-Identifier: BSD-3-Clause
- * Copyright(c) 2018 Intel Corporation
+ * Copyright(c) 2018-2019 Intel Corporation
*/
+#include <rte_mempool.h>
+#include <rte_mbuf.h>
+#include <rte_hexdump.h>
+#include <rte_comp.h>
+#include <rte_bus_pci.h>
+#include <rte_byteorder.h>
+#include <rte_memcpy.h>
+#include <rte_common.h>
+#include <rte_spinlock.h>
+#include <rte_log.h>
+#include <rte_malloc.h>
+#include <rte_memzone.h>
+
+#include "qat_logs.h"
#include "qat_comp.h"
+#include "qat_comp_pmd.h"
+
+static void
+qat_comp_fallback_to_fixed(struct icp_qat_fw_comp_req *comp_req)
+{
+ QAT_DP_LOG(DEBUG, "QAT PMD: fallback to fixed compression!");
+
+ comp_req->comn_hdr.service_cmd_id =
+ ICP_QAT_FW_COMP_CMD_STATIC;
+
+ ICP_QAT_FW_COMN_NEXT_ID_SET(
+ &comp_req->comp_cd_ctrl,
+ ICP_QAT_FW_SLICE_DRAM_WR);
+
+ ICP_QAT_FW_COMN_NEXT_ID_SET(
+ &comp_req->u2.xlt_cd_ctrl,
+ ICP_QAT_FW_SLICE_NULL);
+ ICP_QAT_FW_COMN_CURR_ID_SET(
+ &comp_req->u2.xlt_cd_ctrl,
+ ICP_QAT_FW_SLICE_NULL);
+}
+
+void
+qat_comp_free_split_op_memzones(struct qat_comp_op_cookie *cookie,
+ unsigned int nb_children)
+{
+ unsigned int i;
+
+ /* free all memzones allocated for child descriptors */
+ for (i = 0; i < nb_children; i++)
+ rte_memzone_free(cookie->dst_memzones[i]);
+
+ /* and free the pointer table */
+ rte_free(cookie->dst_memzones);
+ cookie->dst_memzones = NULL;
+}
+
+static int
+qat_comp_allocate_split_op_memzones(struct qat_comp_op_cookie *cookie,
+ unsigned int nb_descriptors_needed)
+{
+ struct qat_queue *txq = &(cookie->qp->tx_q);
+ char dst_memz_name[RTE_MEMZONE_NAMESIZE];
+ unsigned int i;
+
+ /* allocate the array of memzone pointers */
+ cookie->dst_memzones = rte_zmalloc_socket("qat PMD im buf mz pointers",
+ (nb_descriptors_needed - 1) *
+ sizeof(const struct rte_memzone *),
+ RTE_CACHE_LINE_SIZE, cookie->socket_id);
+
+ if (cookie->dst_memzones == NULL) {
+ QAT_DP_LOG(ERR,
+ "QAT PMD: failed to allocate im buf mz pointers");
+ return -ENOMEM;
+ }
+
+ for (i = 0; i < nb_descriptors_needed - 1; i++) {
+ snprintf(dst_memz_name,
+ sizeof(dst_memz_name),
+ "dst_%u_%u_%u_%u_%u",
+ cookie->qp->qat_dev->qat_dev_id,
+ txq->hw_bundle_number, txq->hw_queue_number,
+ cookie->cookie_index, i);
+
+ cookie->dst_memzones[i] = rte_memzone_reserve_aligned(
+ dst_memz_name, RTE_PMD_QAT_COMP_IM_BUFFER_SIZE,
+ cookie->socket_id, RTE_MEMZONE_IOVA_CONTIG,
+ RTE_CACHE_LINE_SIZE);
+
+ if (cookie->dst_memzones[i] == NULL) {
+ QAT_DP_LOG(ERR,
+ "QAT PMD: failed to allocate dst buffer memzone");
+
+ /* let's free all memzones allocated up to now */
+ qat_comp_free_split_op_memzones(cookie, i);
+
+ return -ENOMEM;
+ }
+ }
+
+ return 0;
+}
+
+int
+qat_comp_build_request(void *in_op, uint8_t *out_msg,
+ void *op_cookie,
+ enum qat_device_gen qat_dev_gen __rte_unused)
+{
+ struct rte_comp_op *op = in_op;
+ struct qat_comp_op_cookie *cookie =
+ (struct qat_comp_op_cookie *)op_cookie;
+ 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 (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 (likely(qat_xform->qat_comp_request_type ==
+ QAT_COMP_REQUEST_DYNAMIC_COMP_STATELESS)) {
+
+ if (unlikely(op->src.length > QAT_FALLBACK_THLD)) {
+ /* the operation must be split into pieces */
+ if (qat_xform->checksum_type !=
+ RTE_COMP_CHECKSUM_NONE) {
+ /* fallback to fixed compression in case any
+ * checksum calculation was requested
+ */
+ qat_comp_fallback_to_fixed(comp_req);
+ } else {
+ /* calculate num. of descriptors for split op */
+ unsigned int nb_descriptors_needed =
+ op->src.length / QAT_FALLBACK_THLD + 1;
+ /* allocate memzone for output data */
+ if (qat_comp_allocate_split_op_memzones(
+ cookie, nb_descriptors_needed)) {
+ /* out of memory, fallback to fixed */
+ qat_comp_fallback_to_fixed(comp_req);
+ } else {
+ QAT_DP_LOG(DEBUG,
+ "Input data is too big, op must be split into %u descriptors",
+ nb_descriptors_needed);
+ return (int) nb_descriptors_needed;
+ }
+ }
+ }
+
+ /* set BFINAL bit according to flush_flag */
+ comp_req->comp_pars.req_par_flags =
+ ICP_QAT_FW_COMP_REQ_PARAM_FLAGS_BUILD(
+ ICP_QAT_FW_COMP_SOP,
+ ICP_QAT_FW_COMP_EOP,
+ op->flush_flag == RTE_COMP_FLUSH_FINAL ?
+ ICP_QAT_FW_COMP_BFINAL
+ : ICP_QAT_FW_COMP_NOT_BFINAL,
+ ICP_QAT_FW_COMP_CNV,
+ ICP_QAT_FW_COMP_CNV_RECOVERY);
+
+ } else 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);
+ }
+
+ /* common for sgl and flat buffers */
+ comp_req->comp_pars.comp_len = op->src.length;
+ comp_req->comp_pars.out_buffer_sz = rte_pktmbuf_pkt_len(op->m_dst) -
+ op->dst.offset;
+
+ if (op->m_src->next != NULL || op->m_dst->next != NULL) {
+ /* sgl */
+ int ret = 0;
+
+ ICP_QAT_FW_COMN_PTR_TYPE_SET(comp_req->comn_hdr.comn_req_flags,
+ QAT_COMN_PTR_TYPE_SGL);
+
+ if (unlikely(op->m_src->nb_segs > cookie->src_nb_elems)) {
+ /* we need to allocate more elements in SGL*/
+ void *tmp;
+
+ tmp = rte_realloc_socket(cookie->qat_sgl_src_d,
+ sizeof(struct qat_sgl) +
+ sizeof(struct qat_flat_buf) *
+ op->m_src->nb_segs, 64,
+ cookie->socket_id);
+
+ if (unlikely(tmp == NULL)) {
+ QAT_DP_LOG(ERR, "QAT PMD can't allocate memory"
+ " 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 */
+ cookie->qat_sgl_src_d = (struct qat_sgl *)tmp;
+ cookie->src_nb_elems = op->m_src->nb_segs;
+ cookie->qat_sgl_src_phys_addr =
+ rte_malloc_virt2iova(cookie->qat_sgl_src_d);
+ }
+
+ ret = qat_sgl_fill_array(op->m_src,
+ op->src.offset,
+ cookie->qat_sgl_src_d,
+ op->src.length,
+ cookie->src_nb_elems);
+ 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;
+ }
+
+ if (unlikely(op->m_dst->nb_segs > cookie->dst_nb_elems)) {
+ /* we need to allocate more elements in SGL*/
+ struct qat_sgl *tmp;
+
+ tmp = rte_realloc_socket(cookie->qat_sgl_dst_d,
+ sizeof(struct qat_sgl) +
+ sizeof(struct qat_flat_buf) *
+ op->m_dst->nb_segs, 64,
+ cookie->socket_id);
+
+ if (unlikely(tmp == NULL)) {
+ QAT_DP_LOG(ERR, "QAT PMD can't allocate memory"
+ " 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 */
+ cookie->qat_sgl_dst_d = (struct qat_sgl *)tmp;
+ cookie->dst_nb_elems = op->m_dst->nb_segs;
+ cookie->qat_sgl_dst_phys_addr =
+ rte_malloc_virt2iova(cookie->qat_sgl_dst_d);
+ }
+
+ ret = qat_sgl_fill_array(op->m_dst,
+ op->dst.offset,
+ cookie->qat_sgl_dst_d,
+ comp_req->comp_pars.out_buffer_sz,
+ cookie->dst_nb_elems);
+ 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;
+ }
+
+ comp_req->comn_mid.src_data_addr =
+ cookie->qat_sgl_src_phys_addr;
+ comp_req->comn_mid.dest_data_addr =
+ cookie->qat_sgl_dst_phys_addr;
+ comp_req->comn_mid.src_length = 0;
+ comp_req->comn_mid.dst_length = 0;
+
+ } else {
+ /* flat aka linear buffer */
+ ICP_QAT_FW_COMN_PTR_TYPE_SET(comp_req->comn_hdr.comn_req_flags,
+ QAT_COMN_PTR_TYPE_FLAT);
+ comp_req->comn_mid.src_length = op->src.length;
+ comp_req->comn_mid.dst_length =
+ comp_req->comp_pars.out_buffer_sz;
+
+ comp_req->comn_mid.src_data_addr =
+ rte_pktmbuf_mtophys_offset(op->m_src, op->src.offset);
+ comp_req->comn_mid.dest_data_addr =
+ rte_pktmbuf_mtophys_offset(op->m_dst, op->dst.offset);
+ }
+
+ if (unlikely(rte_pktmbuf_pkt_len(op->m_dst) < QAT_MIN_OUT_BUF_SIZE)) {
+ /* QAT doesn't support dest. buffer lower
+ * than QAT_MIN_OUT_BUF_SIZE. Propagate error mark
+ * by converting this request to the null one
+ * and check the status in the response.
+ */
+ QAT_DP_LOG(WARNING, "QAT destination buffer too small - resend with larger buffer");
+ comp_req->comn_hdr.service_type = ICP_QAT_FW_COMN_REQ_NULL;
+ comp_req->comn_hdr.service_cmd_id = ICP_QAT_FW_NULL_REQ_SERV_ID;
+ cookie->error = RTE_COMP_OP_STATUS_OUT_OF_SPACE_TERMINATED;
+ }
+
+#if RTE_LOG_DP_LEVEL >= RTE_LOG_DEBUG
+ QAT_DP_LOG(DEBUG, "Direction: %s",
+ qat_xform->qat_comp_request_type == QAT_COMP_REQUEST_DECOMPRESS ?
+ "decompression" : "compression");
+ QAT_DP_HEXDUMP_LOG(DEBUG, "qat compression message:", comp_req,
+ sizeof(struct icp_qat_fw_comp_req));
+#endif
+ return 0;
+}
+
+static inline uint32_t adf_modulo(uint32_t data, uint32_t modulo_mask)
+{
+ return data & modulo_mask;
+}
+
+static inline void
+qat_comp_mbuf_skip(struct rte_mbuf **mbuf, uint32_t *offset, uint32_t len)
+{
+ while (*offset + len >= rte_pktmbuf_data_len(*mbuf)) {
+ len -= (rte_pktmbuf_data_len(*mbuf) - *offset);
+ *mbuf = (*mbuf)->next;
+ *offset = 0;
+ }
+ *offset = len;
+}
+
+int
+qat_comp_build_multiple_requests(void *in_op, struct qat_qp *qp,
+ uint32_t parent_tail, int nb_descr)
+{
+ struct rte_comp_op op_backup;
+ struct rte_mbuf dst_mbuf;
+ struct rte_comp_op *op = in_op;
+ struct qat_queue *txq = &(qp->tx_q);
+ uint8_t *base_addr = (uint8_t *)txq->base_addr;
+ uint8_t *out_msg = base_addr + parent_tail;
+ uint32_t tail = parent_tail;
+ struct icp_qat_fw_comp_req *comp_req =
+ (struct icp_qat_fw_comp_req *)out_msg;
+ struct qat_comp_op_cookie *parent_cookie =
+ (struct qat_comp_op_cookie *)
+ qp->op_cookies[parent_tail / txq->msg_size];
+ struct qat_comp_op_cookie *child_cookie;
+ uint16_t dst_data_size =
+ RTE_MIN(RTE_PMD_QAT_COMP_IM_BUFFER_SIZE, 65535);
+ uint32_t data_to_enqueue = op->src.length - QAT_FALLBACK_THLD;
+ int num_descriptors_built = 1;
+ int ret;
+
+ QAT_DP_LOG(DEBUG, "op %p, parent_cookie %p", op, parent_cookie);
+
+ /* copy original op to the local variable for restoring later */
+ rte_memcpy(&op_backup, op, sizeof(op_backup));
+
+ parent_cookie->nb_child_responses = 0;
+ parent_cookie->nb_children = 0;
+ parent_cookie->split_op = 1;
+ parent_cookie->dst_data = op->m_dst;
+ parent_cookie->dst_data_offset = op->dst.offset;
+
+ op->src.length = QAT_FALLBACK_THLD;
+ op->flush_flag = RTE_COMP_FLUSH_FULL;
+
+ QAT_DP_LOG(DEBUG, "parent op src len %u dst len %u",
+ op->src.length, op->m_dst->pkt_len);
+
+ ret = qat_comp_build_request(in_op, out_msg, parent_cookie,
+ qp->qat_dev_gen);
+ if (ret != 0) {
+ /* restore op and clear cookie */
+ QAT_DP_LOG(WARNING, "Failed to build parent descriptor");
+ op->src.length = op_backup.src.length;
+ op->flush_flag = op_backup.flush_flag;
+ parent_cookie->split_op = 0;
+ return ret;
+ }
+
+ /* prepare local dst mbuf */
+ rte_memcpy(&dst_mbuf, op->m_dst, sizeof(dst_mbuf));
+ rte_pktmbuf_reset(&dst_mbuf);
+ dst_mbuf.buf_len = dst_data_size;
+ dst_mbuf.data_len = dst_data_size;
+ dst_mbuf.pkt_len = dst_data_size;
+ dst_mbuf.data_off = 0;
+
+ /* update op for the child operations */
+ op->m_dst = &dst_mbuf;
+ op->dst.offset = 0;
+
+ while (data_to_enqueue) {
+ const struct rte_memzone *mz =
+ parent_cookie->dst_memzones[num_descriptors_built - 1];
+ uint32_t src_data_size = RTE_MIN(data_to_enqueue,
+ QAT_FALLBACK_THLD);
+ uint32_t cookie_index;
+
+ /* update params for the next op */
+ op->src.offset += QAT_FALLBACK_THLD;
+ op->src.length = src_data_size;
+ op->flush_flag = (src_data_size == data_to_enqueue) ?
+ op_backup.flush_flag : RTE_COMP_FLUSH_FULL;
+
+ /* update dst mbuf for the next op (use memzone for dst data) */
+ dst_mbuf.buf_addr = mz->addr;
+ dst_mbuf.buf_iova = mz->iova;
+
+ /* move the tail and calculate next cookie index */
+ tail = adf_modulo(tail + txq->msg_size, txq->modulo_mask);
+ cookie_index = tail / txq->msg_size;
+ child_cookie = (struct qat_comp_op_cookie *)
+ qp->op_cookies[cookie_index];
+ comp_req = (struct icp_qat_fw_comp_req *)(base_addr + tail);
+
+ /* update child cookie */
+ child_cookie->split_op = 1; /* must be set for child as well */
+ child_cookie->parent_cookie = parent_cookie; /* same as above */
+ child_cookie->nb_children = 0;
+ child_cookie->dest_buffer = mz->addr;
+
+ QAT_DP_LOG(DEBUG,
+ "cookie_index %u, child_cookie %p, comp_req %p",
+ cookie_index, child_cookie, comp_req);
+ QAT_DP_LOG(DEBUG,
+ "data_to_enqueue %u, num_descriptors_built %d",
+ data_to_enqueue, num_descriptors_built);
+ QAT_DP_LOG(DEBUG, "child op src len %u dst len %u",
+ op->src.length, op->m_dst->pkt_len);
+
+ /* build the request */
+ ret = qat_comp_build_request(op, (uint8_t *)comp_req,
+ child_cookie, qp->qat_dev_gen);
+ if (ret < 0) {
+ QAT_DP_LOG(WARNING, "Failed to build child descriptor");
+ /* restore op and clear cookie */
+ rte_memcpy(op, &op_backup, sizeof(op_backup));
+ parent_cookie->split_op = 0;
+ parent_cookie->nb_children = 0;
+ return ret;
+ }
+
+ data_to_enqueue -= src_data_size;
+ num_descriptors_built++;
+ }
+
+ /* restore backed up original op */
+ rte_memcpy(op, &op_backup, sizeof(op_backup));
+
+ if (nb_descr != num_descriptors_built)
+ QAT_DP_LOG(ERR, "split op. expected %d, built %d",
+ nb_descr, num_descriptors_built);
+
+ parent_cookie->nb_children = num_descriptors_built - 1;
+ return num_descriptors_built;
+}
+
+static inline void
+qat_comp_response_data_copy(struct qat_comp_op_cookie *cookie,
+ struct rte_comp_op *rx_op)
+{
+ struct qat_comp_op_cookie *pc = cookie->parent_cookie;
+ struct rte_mbuf *sgl_buf = pc->dst_data;
+ void *op_dst_addr = rte_pktmbuf_mtod_offset(sgl_buf, uint8_t *,
+ pc->dst_data_offset);
+
+ /* number of bytes left in the current segment */
+ uint32_t left_in_current = rte_pktmbuf_data_len(sgl_buf) -
+ pc->dst_data_offset;
+
+ uint32_t prod, sent;
+
+ if (rx_op->produced <= left_in_current) {
+ rte_memcpy(op_dst_addr, cookie->dest_buffer,
+ rx_op->produced);
+ /* calculate dst mbuf and offset for the next child op */
+ if (rx_op->produced == left_in_current) {
+ pc->dst_data = sgl_buf->next;
+ pc->dst_data_offset = 0;
+ } else
+ pc->dst_data_offset += rx_op->produced;
+ } else {
+ rte_memcpy(op_dst_addr, cookie->dest_buffer,
+ left_in_current);
+ sgl_buf = sgl_buf->next;
+ prod = rx_op->produced - left_in_current;
+ sent = left_in_current;
+ while (prod > rte_pktmbuf_data_len(sgl_buf)) {
+ op_dst_addr = rte_pktmbuf_mtod_offset(sgl_buf,
+ uint8_t *, 0);
+
+ rte_memcpy(op_dst_addr,
+ ((uint8_t *)cookie->dest_buffer) +
+ sent,
+ rte_pktmbuf_data_len(sgl_buf));
+
+ prod -= rte_pktmbuf_data_len(sgl_buf);
+ sent += rte_pktmbuf_data_len(sgl_buf);
+
+ sgl_buf = sgl_buf->next;
+ }
+
+ op_dst_addr = rte_pktmbuf_mtod_offset(sgl_buf, uint8_t *, 0);
+
+ rte_memcpy(op_dst_addr,
+ ((uint8_t *)cookie->dest_buffer) + sent,
+ prod);
+
+ /* calculate dst mbuf and offset for the next child op */
+ if (prod == rte_pktmbuf_data_len(sgl_buf)) {
+ pc->dst_data = sgl_buf->next;
+ pc->dst_data_offset = 0;
+ } else {
+ pc->dst_data = sgl_buf;
+ pc->dst_data_offset = prod;
+ }
+ }
+}
+
+int
+qat_comp_process_response(void **op, uint8_t *resp, void *op_cookie,
+ uint64_t *dequeue_err_count)
+{
+ struct icp_qat_fw_comp_resp *resp_msg =
+ (struct icp_qat_fw_comp_resp *)resp;
+ struct qat_comp_op_cookie *cookie =
+ (struct qat_comp_op_cookie *)op_cookie;
+
+ struct icp_qat_fw_resp_comp_pars *comp_resp1 =
+ (struct icp_qat_fw_resp_comp_pars *)&resp_msg->comp_resp_pars;
+
+ QAT_DP_LOG(DEBUG, "input counter = %u, output counter = %u",
+ comp_resp1->input_byte_counter,
+ comp_resp1->output_byte_counter);
+
+ struct rte_comp_op *rx_op = (struct rte_comp_op *)(uintptr_t)
+ (resp_msg->opaque_data);
+ 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 ?
+ "decompression" : "compression");
+ QAT_DP_HEXDUMP_LOG(DEBUG, "qat_response:", (uint8_t *)resp_msg,
+ sizeof(struct icp_qat_fw_comp_resp));
+#endif
+
+ if (unlikely(cookie->error)) {
+ rx_op->status = cookie->error;
+ cookie->error = 0;
+ ++(*dequeue_err_count);
+ rx_op->debug_status = 0;
+ rx_op->consumed = 0;
+ rx_op->produced = 0;
+ *op = (void *)rx_op;
+ /* also in this case number of returned ops */
+ /* must be equal to one, */
+ /* appropriate status (error) must be set as well */
+ return 1;
+ }
+
+ if (likely(qat_xform->qat_comp_request_type
+ != QAT_COMP_REQUEST_DECOMPRESS)) {
+ if (unlikely(ICP_QAT_FW_COMN_HDR_CNV_FLAG_GET(
+ resp_msg->comn_resp.hdr_flags)
+ == ICP_QAT_FW_COMP_NO_CNV)) {
+ rx_op->status = RTE_COMP_OP_STATUS_ERROR;
+ rx_op->debug_status = ERR_CODE_QAT_COMP_WRONG_FW;
+ *op = (void *)rx_op;
+ QAT_DP_LOG(ERR, "QAT has wrong firmware");
+ ++(*dequeue_err_count);
+ return 1;
+ }
+ }
+
+ if (err) {
+ if (unlikely((err & (1 << QAT_COMN_RESP_XLAT_STATUS_BITPOS))
+ && (qat_xform->qat_comp_request_type
+ == QAT_COMP_REQUEST_DYNAMIC_COMP_STATELESS))) {
+ QAT_DP_LOG(ERR, "QAT intermediate buffer may be too "
+ "small for output, try configuring a larger size");
+ }
+
+ int8_t cmp_err_code =
+ (int8_t)resp_msg->comn_resp.comn_error.cmp_err_code;
+ int8_t xlat_err_code =
+ (int8_t)resp_msg->comn_resp.comn_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)
+ ||
+ (cmp_err_code == ERR_CODE_OVERFLOW_ERROR &&
+ xlat_err_code == ERR_CODE_OVERFLOW_ERROR)){
+
+ struct icp_qat_fw_resp_comp_pars *comp_resp =
+ (struct icp_qat_fw_resp_comp_pars *)
+ &resp_msg->comp_resp_pars;
+
+ /* handle recoverable out-of-buffer condition
+ * in stateless compression scenario
+ */
+ if (comp_resp->input_byte_counter) {
+ if ((qat_xform->qat_comp_request_type
+ == QAT_COMP_REQUEST_FIXED_COMP_STATELESS) ||
+ (qat_xform->qat_comp_request_type
+ == QAT_COMP_REQUEST_DYNAMIC_COMP_STATELESS)) {
+
+ 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;
+ } else
+ rx_op->status =
+ RTE_COMP_OP_STATUS_OUT_OF_SPACE_TERMINATED;
+ } else
+ rx_op->status =
+ RTE_COMP_OP_STATUS_OUT_OF_SPACE_TERMINATED;
+ } else
+ rx_op->status = RTE_COMP_OP_STATUS_ERROR;
+
+ ++(*dequeue_err_count);
+ rx_op->debug_status =
+ *((uint16_t *)(&resp_msg->comn_resp.comn_error));
+ } else {
+ struct icp_qat_fw_resp_comp_pars *comp_resp =
+ (struct icp_qat_fw_resp_comp_pars *)&resp_msg->comp_resp_pars;
+
+ 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)
+ rx_op->output_chksum = comp_resp->curr_crc32;
+ else if (qat_xform->checksum_type ==
+ RTE_COMP_CHECKSUM_ADLER32)
+ rx_op->output_chksum = comp_resp->curr_adler_32;
+ else
+ rx_op->output_chksum = comp_resp->curr_chksum;
+ }
+ }
+ QAT_DP_LOG(DEBUG, "About to check for split op :cookies: %p %p, split:%u",
+ cookie, cookie->parent_cookie, cookie->split_op);
+
+ if (cookie->split_op) {
+ *op = NULL;
+ struct qat_comp_op_cookie *pc = cookie->parent_cookie;
+
+ if (cookie->nb_children > 0) {
+ QAT_DP_LOG(DEBUG, "Parent");
+ /* parent - don't return until all children
+ * responses are collected
+ */
+ cookie->total_consumed = rx_op->consumed;
+ cookie->total_produced = rx_op->produced;
+ if (err) {
+ cookie->error = rx_op->status;
+ rx_op->status = RTE_COMP_OP_STATUS_SUCCESS;
+ } else {
+ /* calculate dst mbuf and offset for child op */
+ qat_comp_mbuf_skip(&cookie->dst_data,
+ &cookie->dst_data_offset,
+ rx_op->produced);
+ }
+ } else {
+ QAT_DP_LOG(DEBUG, "Child");
+ if (pc->error == RTE_COMP_OP_STATUS_SUCCESS) {
+ if (err)
+ pc->error = rx_op->status;
+ if (rx_op->produced) {
+ /* this covers both SUCCESS and
+ * OUT_OF_SPACE_RECOVERABLE cases
+ */
+ qat_comp_response_data_copy(cookie,
+ rx_op);
+ pc->total_consumed += rx_op->consumed;
+ pc->total_produced += rx_op->produced;
+ }
+ }
+ rx_op->status = RTE_COMP_OP_STATUS_SUCCESS;
+
+ pc->nb_child_responses++;
+
+ /* (child) cookie fields have to be reset
+ * to avoid problems with reusability -
+ * rx and tx queue starting from index zero
+ */
+ cookie->nb_children = 0;
+ cookie->split_op = 0;
+ cookie->nb_child_responses = 0;
+ cookie->dest_buffer = NULL;
+
+ if (pc->nb_child_responses == pc->nb_children) {
+ uint8_t child_resp;
+
+ /* parent should be included as well */
+ child_resp = pc->nb_child_responses + 1;
+
+ rx_op->status = pc->error;
+ rx_op->consumed = pc->total_consumed;
+ rx_op->produced = pc->total_produced;
+ *op = (void *)rx_op;
+
+ /* free memzones used for dst data */
+ qat_comp_free_split_op_memzones(pc,
+ pc->nb_children);
+
+ /* (parent) cookie fields have to be reset
+ * to avoid problems with reusability -
+ * rx and tx queue starting from index zero
+ */
+ pc->nb_children = 0;
+ pc->split_op = 0;
+ pc->nb_child_responses = 0;
+ pc->error = RTE_COMP_OP_STATUS_SUCCESS;
+
+ return child_resp;
+ }
+ }
+ return 0;
+ }
+
+ *op = (void *)rx_op;
+ return 1;
+}
+
+unsigned int
+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)
+{
+ if (request == QAT_COMP_REQUEST_FIXED_COMP_STATELESS)
+ header->service_cmd_id = ICP_QAT_FW_COMP_CMD_STATIC;
+ else if (request == QAT_COMP_REQUEST_DYNAMIC_COMP_STATELESS)
+ header->service_cmd_id = ICP_QAT_FW_COMP_CMD_DYNAMIC;
+ else if (request == QAT_COMP_REQUEST_DECOMPRESS)
+ header->service_cmd_id = ICP_QAT_FW_COMP_CMD_DECOMPRESS;
+
+ header->service_type = ICP_QAT_FW_COMN_REQ_CPM_FW_COMP;
+ header->hdr_flags =
+ ICP_QAT_FW_COMN_HDR_FLAGS_BUILD(ICP_QAT_FW_COMN_REQ_FLAG_SET);
+
+ header->comn_req_flags = ICP_QAT_FW_COMN_FLAGS_BUILD(
+ QAT_COMN_CD_FLD_TYPE_16BYTE_DATA, QAT_COMN_PTR_TYPE_FLAT);
+}
+
+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 qat_comp_stream *stream,
+ enum rte_comp_op_type op_type)
+{
+ struct icp_qat_fw_comp_req *comp_req;
+ int comp_level, algo;
+ uint32_t req_par_flags;
+ int direction = ICP_QAT_HW_COMPRESSION_DIR_COMPRESS;
+
+ if (unlikely(qat_xform == NULL)) {
+ QAT_LOG(ERR, "Session was not created for this device");
+ 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;
+ req_par_flags = ICP_QAT_FW_COMP_REQ_PARAM_FLAGS_BUILD(
+ ICP_QAT_FW_COMP_SOP, ICP_QAT_FW_COMP_EOP,
+ ICP_QAT_FW_COMP_BFINAL,
+ ICP_QAT_FW_COMP_CNV,
+ ICP_QAT_FW_COMP_CNV_RECOVERY);
+ } else {
+ if (xform->compress.level == RTE_COMP_LEVEL_PMD_DEFAULT)
+ comp_level = ICP_QAT_HW_COMPRESSION_DEPTH_8;
+ else if (xform->compress.level == 1)
+ comp_level = ICP_QAT_HW_COMPRESSION_DEPTH_1;
+ else if (xform->compress.level == 2)
+ comp_level = ICP_QAT_HW_COMPRESSION_DEPTH_4;
+ else if (xform->compress.level == 3)
+ comp_level = ICP_QAT_HW_COMPRESSION_DEPTH_8;
+ else if (xform->compress.level >= 4 &&
+ xform->compress.level <= 9)
+ comp_level = ICP_QAT_HW_COMPRESSION_DEPTH_16;
+ else {
+ QAT_LOG(ERR, "compression level not supported");
+ return -EINVAL;
+ }
+ req_par_flags = ICP_QAT_FW_COMP_REQ_PARAM_FLAGS_BUILD(
+ ICP_QAT_FW_COMP_SOP, ICP_QAT_FW_COMP_EOP,
+ ICP_QAT_FW_COMP_BFINAL, ICP_QAT_FW_COMP_CNV,
+ ICP_QAT_FW_COMP_CNV_RECOVERY);
+ }
+
+ switch (xform->compress.algo) {
+ case RTE_COMP_ALGO_DEFLATE:
+ algo = ICP_QAT_HW_COMPRESSION_ALGO_DEFLATE;
+ break;
+ case RTE_COMP_ALGO_LZS:
+ default:
+ /* RTE_COMP_NULL */
+ QAT_LOG(ERR, "compression algorithm not supported");
+ return -EINVAL;
+ }
+
+ comp_req = &qat_xform->qat_comp_req_tmpl;
+
+ /* Initialize header */
+ qat_comp_create_req_hdr(&comp_req->comn_hdr,
+ qat_xform->qat_comp_request_type);
+
+ 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(
+ direction,
+ /* In CPM 1.6 only valid mode ! */
+ ICP_QAT_HW_COMPRESSION_DELAYED_MATCH_ENABLED, algo,
+ /* Translate level to depth */
+ comp_level, ICP_QAT_HW_COMPRESSION_FILE_TYPE_0);
+
+ comp_req->comp_pars.initial_adler = 1;
+ comp_req->comp_pars.initial_crc32 = 0;
+ comp_req->comp_pars.req_par_flags = req_par_flags;
+
+
+ if (qat_xform->qat_comp_request_type ==
+ QAT_COMP_REQUEST_FIXED_COMP_STATELESS ||
+ qat_xform->qat_comp_request_type == QAT_COMP_REQUEST_DECOMPRESS) {
+ ICP_QAT_FW_COMN_NEXT_ID_SET(&comp_req->comp_cd_ctrl,
+ ICP_QAT_FW_SLICE_DRAM_WR);
+ ICP_QAT_FW_COMN_CURR_ID_SET(&comp_req->comp_cd_ctrl,
+ ICP_QAT_FW_SLICE_COMP);
+ } else if (qat_xform->qat_comp_request_type ==
+ QAT_COMP_REQUEST_DYNAMIC_COMP_STATELESS) {
+
+ ICP_QAT_FW_COMN_NEXT_ID_SET(&comp_req->comp_cd_ctrl,
+ ICP_QAT_FW_SLICE_XLAT);
+ ICP_QAT_FW_COMN_CURR_ID_SET(&comp_req->comp_cd_ctrl,
+ ICP_QAT_FW_SLICE_COMP);
+
+ ICP_QAT_FW_COMN_NEXT_ID_SET(&comp_req->u2.xlt_cd_ctrl,
+ ICP_QAT_FW_SLICE_DRAM_WR);
+ ICP_QAT_FW_COMN_CURR_ID_SET(&comp_req->u2.xlt_cd_ctrl,
+ ICP_QAT_FW_SLICE_XLAT);
+
+ comp_req->u1.xlt_pars.inter_buff_ptr =
+ interm_buff_mz->phys_addr;
+ }
+
+#if RTE_LOG_DP_LEVEL >= RTE_LOG_DEBUG
+ QAT_DP_HEXDUMP_LOG(DEBUG, "qat compression message template:", comp_req,
+ sizeof(struct icp_qat_fw_comp_req));
+#endif
+ return 0;
+}
+
+/**
+ * Create driver private_xform data.
+ *
+ * @param dev
+ * Compressdev device
+ * @param xform
+ * xform data from application
+ * @param private_xform
+ * ptr where handle of pmd's private_xform data should be stored
+ * @return
+ * - if successful returns 0
+ * and valid private_xform handle
+ * - <0 in error cases
+ * - Returns -EINVAL if input parameters are invalid.
+ * - Returns -ENOTSUP if comp device does not support the comp transform.
+ * - Returns -ENOMEM if the private_xform could not be allocated.
+ */
+int
+qat_comp_private_xform_create(struct rte_compressdev *dev,
+ const struct rte_comp_xform *xform,
+ void **private_xform)
+{
+ struct qat_comp_dev_private *qat = dev->data->dev_private;
+
+ if (unlikely(private_xform == NULL)) {
+ QAT_LOG(ERR, "QAT: private_xform parameter is NULL");
+ return -EINVAL;
+ }
+ if (unlikely(qat->xformpool == NULL)) {
+ QAT_LOG(ERR, "QAT device has no private_xform mempool");
+ return -ENOMEM;
+ }
+ if (rte_mempool_get(qat->xformpool, private_xform)) {
+ QAT_LOG(ERR, "Couldn't get object from qat xform mempool");
+ return -ENOMEM;
+ }
+
+ struct qat_comp_xform *qat_xform =
+ (struct qat_comp_xform *)*private_xform;
+
+ if (xform->type == RTE_COMP_COMPRESS) {
+
+ if (xform->compress.deflate.huffman == RTE_COMP_HUFFMAN_FIXED ||
+ ((xform->compress.deflate.huffman == RTE_COMP_HUFFMAN_DEFAULT)
+ && qat->interm_buff_mz == NULL))
+ qat_xform->qat_comp_request_type =
+ QAT_COMP_REQUEST_FIXED_COMP_STATELESS;
+
+ else if ((xform->compress.deflate.huffman ==
+ RTE_COMP_HUFFMAN_DYNAMIC ||
+ xform->compress.deflate.huffman ==
+ RTE_COMP_HUFFMAN_DEFAULT) &&
+ qat->interm_buff_mz != NULL)
+
+ qat_xform->qat_comp_request_type =
+ QAT_COMP_REQUEST_DYNAMIC_COMP_STATELESS;
+
+ else {
+ QAT_LOG(ERR,
+ "IM buffers needed for dynamic deflate. Set size in config file");
+ return -EINVAL;
+ }
+
+ qat_xform->checksum_type = xform->compress.chksum;
+
+ } else {
+ qat_xform->qat_comp_request_type = QAT_COMP_REQUEST_DECOMPRESS;
+ qat_xform->checksum_type = xform->decompress.chksum;
+ }
+
+ 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;
+ }
+ return 0;
+}
+
+/**
+ * Free driver private_xform data.
+ *
+ * @param dev
+ * Compressdev device
+ * @param private_xform
+ * handle of pmd's private_xform data
+ * @return
+ * - 0 if successful
+ * - <0 in error cases
+ * - Returns -EINVAL if input parameters are invalid.
+ */
+int
+qat_comp_private_xform_free(struct rte_compressdev *dev __rte_unused,
+ void *private_xform)
+{
+ struct qat_comp_xform *qat_xform =
+ (struct qat_comp_xform *)private_xform;
+
+ if (qat_xform) {
+ memset(qat_xform, 0, qat_comp_xform_size());
+ struct rte_mempool *mp = rte_mempool_from_obj(qat_xform);
+
+ rte_mempool_put(mp, qat_xform);
+ return 0;
+ }
+ 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;
+}