42 	void			*pdu;  member
85 	void			*pdu;  member
339 		void *pdu, size_t len)  in nvme_tcp_hdgst()  argument
343 	sg_init_one(&sg, pdu, len);  in nvme_tcp_hdgst()
344 	ahash_request_set_crypt(hash, &sg, pdu + len, len);  in nvme_tcp_hdgst()
349 		void *pdu, size_t pdu_len)  in nvme_tcp_verify_hdgst()  argument
351 	struct nvme_tcp_hdr *hdr = pdu;  in nvme_tcp_verify_hdgst()
362 	recv_digest = *(__le32 *)(pdu + hdr->hlen);  in nvme_tcp_verify_hdgst()
363 	nvme_tcp_hdgst(queue->rcv_hash, pdu, pdu_len);  in nvme_tcp_verify_hdgst()
364 	exp_digest = *(__le32 *)(pdu + hdr->hlen);  in nvme_tcp_verify_hdgst()
375 static int nvme_tcp_check_ddgst(struct nvme_tcp_queue *queue, void *pdu)  in nvme_tcp_check_ddgst()  argument
377 	struct nvme_tcp_hdr *hdr = pdu;  in nvme_tcp_check_ddgst()
400 	page_frag_free(req->pdu);  in nvme_tcp_exit_request()
413 	req->pdu = page_frag_alloc(&queue->pf_cache,  in nvme_tcp_init_request()
416 	if (!req->pdu)  in nvme_tcp_init_request()
493 		struct nvme_tcp_data_pdu *pdu)  in nvme_tcp_handle_c2h_data()  argument
497 	rq = blk_mq_tag_to_rq(nvme_tcp_tagset(queue), pdu->command_id);  in nvme_tcp_handle_c2h_data()
501 			nvme_tcp_queue_id(queue), pdu->command_id);  in nvme_tcp_handle_c2h_data()
512 	queue->data_remaining = le32_to_cpu(pdu->data_length);  in nvme_tcp_handle_c2h_data()
514 	if (pdu->hdr.flags & NVME_TCP_F_DATA_SUCCESS &&  in nvme_tcp_handle_c2h_data()
515 	    unlikely(!(pdu->hdr.flags & NVME_TCP_F_DATA_LAST))) {  in nvme_tcp_handle_c2h_data()
527 		struct nvme_tcp_rsp_pdu *pdu)  in nvme_tcp_handle_comp()  argument
529 	struct nvme_completion *cqe = &pdu->cqe;  in nvme_tcp_handle_comp()
549 		struct nvme_tcp_r2t_pdu *pdu)  in nvme_tcp_setup_h2c_data_pdu()  argument
551 	struct nvme_tcp_data_pdu *data = req->pdu;  in nvme_tcp_setup_h2c_data_pdu()
557 	req->pdu_len = le32_to_cpu(pdu->r2t_length);  in nvme_tcp_setup_h2c_data_pdu()
568 	if (unlikely(le32_to_cpu(pdu->r2t_offset) < req->data_sent)) {  in nvme_tcp_setup_h2c_data_pdu()
571 			rq->tag, le32_to_cpu(pdu->r2t_offset),  in nvme_tcp_setup_h2c_data_pdu()
587 	data->ttag = pdu->ttag;  in nvme_tcp_setup_h2c_data_pdu()
595 		struct nvme_tcp_r2t_pdu *pdu)  in nvme_tcp_handle_r2t()  argument
601 	rq = blk_mq_tag_to_rq(nvme_tcp_tagset(queue), pdu->command_id);  in nvme_tcp_handle_r2t()
605 			nvme_tcp_queue_id(queue), pdu->command_id);  in nvme_tcp_handle_r2t()
610 	ret = nvme_tcp_setup_h2c_data_pdu(req, pdu);  in nvme_tcp_handle_r2t()
626 	char *pdu = queue->pdu;  in nvme_tcp_recv_pdu()  local
631 		&pdu[queue->pdu_offset], rcv_len);  in nvme_tcp_recv_pdu()
642 	hdr = queue->pdu;  in nvme_tcp_recv_pdu()
644 		ret = nvme_tcp_verify_hdgst(queue, queue->pdu, hdr->hlen);  in nvme_tcp_recv_pdu()
651 		ret = nvme_tcp_check_ddgst(queue, queue->pdu);  in nvme_tcp_recv_pdu()
658 		return nvme_tcp_handle_c2h_data(queue, (void *)queue->pdu);  in nvme_tcp_recv_pdu()
661 		return nvme_tcp_handle_comp(queue, (void *)queue->pdu);  in nvme_tcp_recv_pdu()
664 		return nvme_tcp_handle_r2t(queue, (void *)queue->pdu);  in nvme_tcp_recv_pdu()
683 	struct nvme_tcp_data_pdu *pdu = (void *)queue->pdu;  in nvme_tcp_recv_data()  local
687 	rq = blk_mq_tag_to_rq(nvme_tcp_tagset(queue), pdu->command_id);  in nvme_tcp_recv_data()
691 			nvme_tcp_queue_id(queue), pdu->command_id);  in nvme_tcp_recv_data()
747 			if (pdu->hdr.flags & NVME_TCP_F_DATA_SUCCESS) {  in nvme_tcp_recv_data()
761 	struct nvme_tcp_data_pdu *pdu = (void *)queue->pdu;  in nvme_tcp_recv_ddgst()  local
785 	if (pdu->hdr.flags & NVME_TCP_F_DATA_SUCCESS) {  in nvme_tcp_recv_ddgst()
787 						pdu->command_id);  in nvme_tcp_recv_ddgst()
949 	struct nvme_tcp_cmd_pdu *pdu = req->pdu;  in nvme_tcp_try_send_cmd_pdu()  local
952 	int len = sizeof(*pdu) + hdgst - req->offset;  in nvme_tcp_try_send_cmd_pdu()
962 		nvme_tcp_hdgst(queue->snd_hash, pdu, sizeof(*pdu));  in nvme_tcp_try_send_cmd_pdu()
964 	ret = kernel_sendpage(queue->sock, virt_to_page(pdu),  in nvme_tcp_try_send_cmd_pdu()
965 			offset_in_page(pdu) + req->offset, len,  flags);  in nvme_tcp_try_send_cmd_pdu()
989 	struct nvme_tcp_data_pdu *pdu = req->pdu;  in nvme_tcp_try_send_data_pdu()  local
991 	int len = sizeof(*pdu) - req->offset + hdgst;  in nvme_tcp_try_send_data_pdu()
995 		nvme_tcp_hdgst(queue->snd_hash, pdu, sizeof(*pdu));  in nvme_tcp_try_send_data_pdu()
997 	ret = kernel_sendpage(queue->sock, virt_to_page(pdu),  in nvme_tcp_try_send_data_pdu()
998 			offset_in_page(pdu) + req->offset, len,  in nvme_tcp_try_send_data_pdu()
1180 	page_frag_free(async->pdu);  in nvme_tcp_free_async_req()
1189 	async->pdu = page_frag_alloc(&queue->pf_cache,  in nvme_tcp_alloc_async_req()
1192 	if (!async->pdu)  in nvme_tcp_alloc_async_req()
1211 	kfree(queue->pdu);  in nvme_tcp_free_queue()
1450 	queue->pdu = kmalloc(rcv_pdu_size, GFP_KERNEL);  in nvme_tcp_alloc_queue()
1451 	if (!queue->pdu) {  in nvme_tcp_alloc_queue()
1493 	kfree(queue->pdu);  in nvme_tcp_alloc_queue()
1596 	if (to_tcp_ctrl(ctrl)->async_req.pdu) {  in nvme_tcp_free_admin_queue()
1599 		to_tcp_ctrl(ctrl)->async_req.pdu = NULL;  in nvme_tcp_free_admin_queue()
2141 	struct nvme_tcp_cmd_pdu *pdu = ctrl->async_req.pdu;  in nvme_tcp_submit_async_event()  local
2142 	struct nvme_command *cmd = &pdu->cmd;  in nvme_tcp_submit_async_event()
2145 	memset(pdu, 0, sizeof(*pdu));  in nvme_tcp_submit_async_event()
2146 	pdu->hdr.type = nvme_tcp_cmd;  in nvme_tcp_submit_async_event()
2148 		pdu->hdr.flags |= NVME_TCP_F_HDGST;  in nvme_tcp_submit_async_event()
2149 	pdu->hdr.hlen = sizeof(*pdu);  in nvme_tcp_submit_async_event()
2150 	pdu->hdr.plen = cpu_to_le32(pdu->hdr.hlen + hdgst);  in nvme_tcp_submit_async_event()
2182 	struct nvme_tcp_cmd_pdu *pdu = req->pdu;  in nvme_tcp_timeout()  local
2186 		nvme_tcp_queue_id(req->queue), rq->tag, pdu->hdr.type);  in nvme_tcp_timeout()
2218 	struct nvme_tcp_cmd_pdu *pdu = req->pdu;  in nvme_tcp_map_data()  local
2219 	struct nvme_command *c = &pdu->cmd;  in nvme_tcp_map_data()
2238 	struct nvme_tcp_cmd_pdu *pdu = req->pdu;  in nvme_tcp_setup_cmd_pdu()  local
2243 	ret = nvme_setup_cmd(ns, rq, &pdu->cmd);  in nvme_tcp_setup_cmd_pdu()
2262 	pdu->hdr.type = nvme_tcp_cmd;  in nvme_tcp_setup_cmd_pdu()
2263 	pdu->hdr.flags = 0;  in nvme_tcp_setup_cmd_pdu()
2265 		pdu->hdr.flags |= NVME_TCP_F_HDGST;  in nvme_tcp_setup_cmd_pdu()
2267 		pdu->hdr.flags |= NVME_TCP_F_DDGST;  in nvme_tcp_setup_cmd_pdu()
2270 	pdu->hdr.hlen = sizeof(*pdu);  in nvme_tcp_setup_cmd_pdu()
2271 	pdu->hdr.pdo = req->pdu_len ? pdu->hdr.hlen + hdgst : 0;  in nvme_tcp_setup_cmd_pdu()
2272 	pdu->hdr.plen =  in nvme_tcp_setup_cmd_pdu()
2273 		cpu_to_le32(pdu->hdr.hlen + hdgst + req->pdu_len + ddgst);  in nvme_tcp_setup_cmd_pdu()