| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Sagi Grimberg | 678 | 37.94% | 38 | 50.67% |
| Or Gerlitz | 632 | 35.37% | 6 | 8.00% |
| Christoph Hellwig | 199 | 11.14% | 2 | 2.67% |
| Shlomo Pongratz | 55 | 3.08% | 2 | 2.67% |
| Michael Christie | 40 | 2.24% | 4 | 5.33% |
| Erez Zilber | 38 | 2.13% | 2 | 2.67% |
| Alex Tabachnik | 37 | 2.07% | 2 | 2.67% |
| Ariel Nahum | 23 | 1.29% | 4 | 5.33% |
| Adir Lev | 20 | 1.12% | 1 | 1.33% |
| Roi Dayan | 19 | 1.06% | 3 | 4.00% |
| Eli Dorfman | 10 | 0.56% | 1 | 1.33% |
| Minh Duc Tran | 10 | 0.56% | 1 | 1.33% |
| Jenny Derzhavetz (Jenny Falkovich) | 10 | 0.56% | 2 | 2.67% |
| Sergey Gorenko | 5 | 0.28% | 1 | 1.33% |
| Alexey Dobriyan | 3 | 0.17% | 1 | 1.33% |
| Max Gurtovoy | 3 | 0.17% | 1 | 1.33% |
| Roland Dreier | 2 | 0.11% | 1 | 1.33% |
| Julia Lawall | 1 | 0.06% | 1 | 1.33% |
| Erez Alfasi | 1 | 0.06% | 1 | 1.33% |
| Steve Wise | 1 | 0.06% | 1 | 1.33% |
| Total | 1787 | 75 |
/* * iSER transport for the Open iSCSI Initiator & iSER transport internals * * Copyright (C) 2004 Dmitry Yusupov * Copyright (C) 2004 Alex Aizman * Copyright (C) 2005 Mike Christie * based on code maintained by open-iscsi@googlegroups.com * * Copyright (c) 2004, 2005, 2006 Voltaire, Inc. All rights reserved. * Copyright (c) 2005, 2006 Cisco Systems. All rights reserved. * Copyright (c) 2013-2014 Mellanox Technologies. All rights reserved. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU * General Public License (GPL) Version 2, available from the file * COPYING in the main directory of this source tree, or the * OpenIB.org BSD license below: * * Redistribution and use in source and binary forms, with or * without modification, are permitted provided that the following * conditions are met: * * - Redistributions of source code must retain the above * copyright notice, this list of conditions and the following * disclaimer. * * - Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and/or other materials * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #ifndef __ISCSI_ISER_H__ #define __ISCSI_ISER_H__ #include <linux/types.h> #include <linux/net.h> #include <linux/printk.h> #include <scsi/libiscsi.h> #include <scsi/scsi_transport_iscsi.h> #include <scsi/scsi_cmnd.h> #include <scsi/scsi_device.h> #include <scsi/iser.h> #include <linux/interrupt.h> #include <linux/wait.h> #include <linux/sched.h> #include <linux/list.h> #include <linux/slab.h> #include <linux/dma-mapping.h> #include <linux/mutex.h> #include <linux/mempool.h> #include <linux/uio.h> #include <linux/socket.h> #include <linux/in.h> #include <linux/in6.h> #include <rdma/ib_verbs.h> #include <rdma/ib_fmr_pool.h> #include <rdma/rdma_cm.h> #define DRV_NAME "iser" #define PFX DRV_NAME ": " #define DRV_VER "1.6" #define iser_dbg(fmt, arg...) \ do { \ if (unlikely(iser_debug_level > 2)) \ printk(KERN_DEBUG PFX "%s: " fmt,\ __func__ , ## arg); \ } while (0) #define iser_warn(fmt, arg...) \ do { \ if (unlikely(iser_debug_level > 0)) \ pr_warn(PFX "%s: " fmt, \ __func__ , ## arg); \ } while (0) #define iser_info(fmt, arg...) \ do { \ if (unlikely(iser_debug_level > 1)) \ pr_info(PFX "%s: " fmt, \ __func__ , ## arg); \ } while (0) #define iser_err(fmt, arg...) \ pr_err(PFX "%s: " fmt, __func__ , ## arg) #define SHIFT_4K 12 #define SIZE_4K (1ULL << SHIFT_4K) #define MASK_4K (~(SIZE_4K-1)) /* Default support is 512KB I/O size */ #define ISER_DEF_MAX_SECTORS 1024 #define ISCSI_ISER_DEF_SG_TABLESIZE ((ISER_DEF_MAX_SECTORS * 512) >> SHIFT_4K) /* Maximum support is 8MB I/O size */ #define ISCSI_ISER_MAX_SG_TABLESIZE ((16384 * 512) >> SHIFT_4K) #define ISER_DEF_XMIT_CMDS_DEFAULT 512 #if ISCSI_DEF_XMIT_CMDS_MAX > ISER_DEF_XMIT_CMDS_DEFAULT #define ISER_DEF_XMIT_CMDS_MAX ISCSI_DEF_XMIT_CMDS_MAX #else #define ISER_DEF_XMIT_CMDS_MAX ISER_DEF_XMIT_CMDS_DEFAULT #endif #define ISER_DEF_CMD_PER_LUN ISER_DEF_XMIT_CMDS_MAX /* QP settings */ /* Maximal bounds on received asynchronous PDUs */ #define ISER_MAX_RX_MISC_PDUS 4 /* NOOP_IN(2) , ASYNC_EVENT(2) */ #define ISER_MAX_TX_MISC_PDUS 6 /* NOOP_OUT(2), TEXT(1), * * SCSI_TMFUNC(2), LOGOUT(1) */ #define ISER_QP_MAX_RECV_DTOS (ISER_DEF_XMIT_CMDS_MAX) #define ISER_MIN_POSTED_RX (ISER_DEF_XMIT_CMDS_MAX >> 2) /* the max TX (send) WR supported by the iSER QP is defined by * * max_send_wr = T * (1 + D) + C ; D is how many inflight dataouts we expect * * to have at max for SCSI command. The tx posting & completion handling code * * supports -EAGAIN scheme where tx is suspended till the QP has room for more * * send WR. D=8 comes from 64K/8K */ #define ISER_INFLIGHT_DATAOUTS 8 #define ISER_QP_MAX_REQ_DTOS (ISER_DEF_XMIT_CMDS_MAX * \ (1 + ISER_INFLIGHT_DATAOUTS) + \ ISER_MAX_TX_MISC_PDUS + \ ISER_MAX_RX_MISC_PDUS) /* Max registration work requests per command */ #define ISER_MAX_REG_WR_PER_CMD 5 /* For Signature we don't support DATAOUTs so no need to make room for them */ #define ISER_QP_SIG_MAX_REQ_DTOS (ISER_DEF_XMIT_CMDS_MAX * \ (1 + ISER_MAX_REG_WR_PER_CMD) + \ ISER_MAX_TX_MISC_PDUS + \ ISER_MAX_RX_MISC_PDUS) #define ISER_GET_MAX_XMIT_CMDS(send_wr) ((send_wr \ - ISER_MAX_TX_MISC_PDUS \ - ISER_MAX_RX_MISC_PDUS) / \ (1 + ISER_INFLIGHT_DATAOUTS)) #define ISER_SIGNAL_CMD_COUNT 32 /* Constant PDU lengths calculations */ #define ISER_HEADERS_LEN (sizeof(struct iser_ctrl) + sizeof(struct iscsi_hdr)) #define ISER_RECV_DATA_SEG_LEN 128 #define ISER_RX_PAYLOAD_SIZE (ISER_HEADERS_LEN + ISER_RECV_DATA_SEG_LEN) #define ISER_RX_LOGIN_SIZE (ISER_HEADERS_LEN + ISCSI_DEF_MAX_RECV_SEG_LEN) /* Length of an object name string */ #define ISER_OBJECT_NAME_SIZE 64 enum iser_conn_state { ISER_CONN_INIT, /* descriptor allocd, no conn */ ISER_CONN_PENDING, /* in the process of being established */ ISER_CONN_UP, /* up and running */ ISER_CONN_TERMINATING, /* in the process of being terminated */ ISER_CONN_DOWN, /* shut down */ ISER_CONN_STATES_NUM }; enum iser_task_status { ISER_TASK_STATUS_INIT = 0, ISER_TASK_STATUS_STARTED, ISER_TASK_STATUS_COMPLETED }; enum iser_data_dir { ISER_DIR_IN = 0, /* to initiator */ ISER_DIR_OUT, /* from initiator */ ISER_DIRS_NUM }; /** * struct iser_data_buf - iSER data buffer * * @sg: pointer to the sg list * @size: num entries of this sg * @data_len: total beffer byte len * @dma_nents: returned by dma_map_sg */ struct iser_data_buf { struct scatterlist *sg; int size; unsigned long data_len; int dma_nents; }; /* fwd declarations */ struct iser_device; struct iscsi_iser_task; struct iscsi_endpoint; struct iser_reg_resources; /** * struct iser_mem_reg - iSER memory registration info * * @sge: memory region sg element * @rkey: memory region remote key * @mem_h: pointer to registration context (FMR/Fastreg) */ struct iser_mem_reg { struct ib_sge sge; u32 rkey; void *mem_h; }; enum iser_desc_type { ISCSI_TX_CONTROL , ISCSI_TX_SCSI_COMMAND, ISCSI_TX_DATAOUT }; /* Maximum number of work requests per task: * Data memory region local invalidate + fast registration * Protection memory region local invalidate + fast registration * Signature memory region local invalidate + fast registration * PDU send */ #define ISER_MAX_WRS 7 /** * struct iser_tx_desc - iSER TX descriptor * * @iser_header: iser header * @iscsi_header: iscsi header * @type: command/control/dataout * @dam_addr: header buffer dma_address * @tx_sg: sg[0] points to iser/iscsi headers * sg[1] optionally points to either of immediate data * unsolicited data-out or control * @num_sge: number sges used on this TX task * @mapped: Is the task header mapped * @wr_idx: Current WR index * @wrs: Array of WRs per task * @data_reg: Data buffer registration details * @prot_reg: Protection buffer registration details * @sig_attrs: Signature attributes */ struct iser_tx_desc { struct iser_ctrl iser_header; struct iscsi_hdr iscsi_header; enum iser_desc_type type; u64 dma_addr; struct ib_sge tx_sg[2]; int num_sge; struct ib_cqe cqe; bool mapped; u8 wr_idx; union iser_wr { struct ib_send_wr send; struct ib_reg_wr fast_reg; struct ib_sig_handover_wr sig; } wrs[ISER_MAX_WRS]; struct iser_mem_reg data_reg; struct iser_mem_reg prot_reg; struct ib_sig_attrs sig_attrs; }; #define ISER_RX_PAD_SIZE (256 - (ISER_RX_PAYLOAD_SIZE + \ sizeof(u64) + sizeof(struct ib_sge) + \ sizeof(struct ib_cqe))) /** * struct iser_rx_desc - iSER RX descriptor * * @iser_header: iser header * @iscsi_header: iscsi header * @data: received data segment * @dma_addr: receive buffer dma address * @rx_sg: ib_sge of receive buffer * @pad: for sense data TODO: Modify to maximum sense length supported */ struct iser_rx_desc { struct iser_ctrl iser_header; struct iscsi_hdr iscsi_header; char data[ISER_RECV_DATA_SEG_LEN]; u64 dma_addr; struct ib_sge rx_sg; struct ib_cqe cqe; char pad[ISER_RX_PAD_SIZE]; } __packed; /** * struct iser_login_desc - iSER login descriptor * * @req: pointer to login request buffer * @resp: pointer to login response buffer * @req_dma: DMA address of login request buffer * @rsp_dma: DMA address of login response buffer * @sge: IB sge for login post recv * @cqe: completion handler */ struct iser_login_desc { void *req; void *rsp; u64 req_dma; u64 rsp_dma; struct ib_sge sge; struct ib_cqe cqe; } __packed; struct iser_conn; struct ib_conn; struct iscsi_iser_task; /** * struct iser_comp - iSER completion context * * @cq: completion queue * @active_qps: Number of active QPs attached * to completion context */ struct iser_comp { struct ib_cq *cq; int active_qps; }; /** * struct iser_device - Memory registration operations * per-device registration schemes * * @alloc_reg_res: Allocate registration resources * @free_reg_res: Free registration resources * @fast_reg_mem: Register memory buffers * @unreg_mem: Un-register memory buffers * @reg_desc_get: Get a registration descriptor for pool * @reg_desc_put: Get a registration descriptor to pool */ struct iser_reg_ops { int (*alloc_reg_res)(struct ib_conn *ib_conn, unsigned cmds_max, unsigned int size); void (*free_reg_res)(struct ib_conn *ib_conn); int (*reg_mem)(struct iscsi_iser_task *iser_task, struct iser_data_buf *mem, struct iser_reg_resources *rsc, struct iser_mem_reg *reg); void (*unreg_mem)(struct iscsi_iser_task *iser_task, enum iser_data_dir cmd_dir); struct iser_fr_desc * (*reg_desc_get)(struct ib_conn *ib_conn); void (*reg_desc_put)(struct ib_conn *ib_conn, struct iser_fr_desc *desc); }; /** * struct iser_device - iSER device handle * * @ib_device: RDMA device * @pd: Protection Domain for this device * @mr: Global DMA memory region * @event_handler: IB events handle routine * @ig_list: entry in devices list * @refcount: Reference counter, dominated by open iser connections * @comps_used: Number of completion contexts used, Min between online * cpus and device max completion vectors * @comps: Dinamically allocated array of completion handlers * @reg_ops: Registration ops * @remote_inv_sup: Remote invalidate is supported on this device */ struct iser_device { struct ib_device *ib_device; struct ib_pd *pd; struct ib_event_handler event_handler; struct list_head ig_list; int refcount; int comps_used; struct iser_comp *comps; const struct iser_reg_ops *reg_ops; bool remote_inv_sup; }; /** * struct iser_reg_resources - Fast registration recources * * @mr: memory region * @fmr_pool: pool of fmrs * @page_vec: fast reg page list used by fmr pool * @mr_valid: is mr valid indicator */ struct iser_reg_resources { union { struct ib_mr *mr; struct ib_fmr_pool *fmr_pool; }; struct iser_page_vec *page_vec; u8 mr_valid:1; }; /** * struct iser_pi_context - Protection information context * * @rsc: protection buffer registration resources * @sig_mr: signature enable memory region * @sig_mr_valid: is sig_mr valid indicator * @sig_protected: is region protected indicator */ struct iser_pi_context { struct iser_reg_resources rsc; struct ib_mr *sig_mr; u8 sig_mr_valid:1; u8 sig_protected:1; }; /** * struct iser_fr_desc - Fast registration descriptor * * @list: entry in connection fastreg pool * @rsc: data buffer registration resources * @pi_ctx: protection information context */ struct iser_fr_desc { struct list_head list; struct iser_reg_resources rsc; struct iser_pi_context *pi_ctx; struct list_head all_list; }; /** * struct iser_fr_pool: connection fast registration pool * * @list: list of fastreg descriptors * @lock: protects fmr/fastreg pool * @size: size of the pool */ struct iser_fr_pool { struct list_head list; spinlock_t lock; int size; struct list_head all_list; }; /** * struct ib_conn - Infiniband related objects * * @cma_id: rdma_cm connection maneger handle * @qp: Connection Queue-pair * @post_recv_buf_count: post receive counter * @sig_count: send work request signal count * @rx_wr: receive work request for batch posts * @device: reference to iser device * @comp: iser completion context * @fr_pool: connection fast registration poool * @pi_support: Indicate device T10-PI support */ struct ib_conn { struct rdma_cm_id *cma_id; struct ib_qp *qp; int post_recv_buf_count; u8 sig_count; struct ib_recv_wr rx_wr[ISER_MIN_POSTED_RX]; struct iser_device *device; struct iser_comp *comp; struct iser_fr_pool fr_pool; bool pi_support; struct ib_cqe reg_cqe; }; /** * struct iser_conn - iSER connection context * * @ib_conn: connection RDMA resources * @iscsi_conn: link to matching iscsi connection * @ep: transport handle * @state: connection logical state * @qp_max_recv_dtos: maximum number of data outs, corresponds * to max number of post recvs * @qp_max_recv_dtos_mask: (qp_max_recv_dtos - 1) * @min_posted_rx: (qp_max_recv_dtos >> 2) * @max_cmds: maximum cmds allowed for this connection * @name: connection peer portal * @release_work: deffered work for release job * @state_mutex: protects iser onnection state * @stop_completion: conn_stop completion * @ib_completion: RDMA cleanup completion * @up_completion: connection establishment completed * (state is ISER_CONN_UP) * @conn_list: entry in ig conn list * @login_desc: login descriptor * @rx_desc_head: head of rx_descs cyclic buffer * @rx_descs: rx buffers array (cyclic buffer) * @num_rx_descs: number of rx descriptors * @scsi_sg_tablesize: scsi host sg_tablesize * @pages_per_mr: maximum pages available for registration */ struct iser_conn { struct ib_conn ib_conn; struct iscsi_conn *iscsi_conn; struct iscsi_endpoint *ep; enum iser_conn_state state; unsigned qp_max_recv_dtos; unsigned qp_max_recv_dtos_mask; unsigned min_posted_rx; u16 max_cmds; char name[ISER_OBJECT_NAME_SIZE]; struct work_struct release_work; struct mutex state_mutex; struct completion stop_completion; struct completion ib_completion; struct completion up_completion; struct list_head conn_list; struct iser_login_desc login_desc; unsigned int rx_desc_head; struct iser_rx_desc *rx_descs; u32 num_rx_descs; unsigned short scsi_sg_tablesize; unsigned short pages_per_mr; bool snd_w_inv; }; /** * struct iscsi_iser_task - iser task context * * @desc: TX descriptor * @iser_conn: link to iser connection * @status: current task status * @sc: link to scsi command * @command_sent: indicate if command was sent * @dir: iser data direction * @rdma_reg: task rdma registration desc * @data: iser data buffer desc * @prot: iser protection buffer desc */ struct iscsi_iser_task { struct iser_tx_desc desc; struct iser_conn *iser_conn; enum iser_task_status status; struct scsi_cmnd *sc; int command_sent; int dir[ISER_DIRS_NUM]; struct iser_mem_reg rdma_reg[ISER_DIRS_NUM]; struct iser_data_buf data[ISER_DIRS_NUM]; struct iser_data_buf prot[ISER_DIRS_NUM]; }; struct iser_page_vec { u64 *pages; int npages; struct ib_mr fake_mr; }; /** * struct iser_global: iSER global context * * @device_list_mutex: protects device_list * @device_list: iser devices global list * @connlist_mutex: protects connlist * @connlist: iser connections global list * @desc_cache: kmem cache for tx dataout */ struct iser_global { struct mutex device_list_mutex; struct list_head device_list; struct mutex connlist_mutex; struct list_head connlist; struct kmem_cache *desc_cache; }; extern struct iser_global ig; extern int iser_debug_level; extern bool iser_pi_enable; extern int iser_pi_guard; extern unsigned int iser_max_sectors; extern bool iser_always_reg; int iser_assign_reg_ops(struct iser_device *device); int iser_send_control(struct iscsi_conn *conn, struct iscsi_task *task); int iser_send_command(struct iscsi_conn *conn, struct iscsi_task *task); int iser_send_data_out(struct iscsi_conn *conn, struct iscsi_task *task, struct iscsi_data *hdr); void iscsi_iser_recv(struct iscsi_conn *conn, struct iscsi_hdr *hdr, char *rx_data, int rx_data_len); void iser_conn_init(struct iser_conn *iser_conn); void iser_conn_release(struct iser_conn *iser_conn); int iser_conn_terminate(struct iser_conn *iser_conn); void iser_release_work(struct work_struct *work); void iser_err_comp(struct ib_wc *wc, const char *type); void iser_login_rsp(struct ib_cq *cq, struct ib_wc *wc); void iser_task_rsp(struct ib_cq *cq, struct ib_wc *wc); void iser_cmd_comp(struct ib_cq *cq, struct ib_wc *wc); void iser_ctrl_comp(struct ib_cq *cq, struct ib_wc *wc); void iser_dataout_comp(struct ib_cq *cq, struct ib_wc *wc); void iser_reg_comp(struct ib_cq *cq, struct ib_wc *wc); void iser_task_rdma_init(struct iscsi_iser_task *task); void iser_task_rdma_finalize(struct iscsi_iser_task *task); void iser_free_rx_descriptors(struct iser_conn *iser_conn); void iser_finalize_rdma_unaligned_sg(struct iscsi_iser_task *iser_task, struct iser_data_buf *mem, enum iser_data_dir cmd_dir); int iser_reg_rdma_mem(struct iscsi_iser_task *task, enum iser_data_dir dir, bool all_imm); void iser_unreg_rdma_mem(struct iscsi_iser_task *task, enum iser_data_dir dir); int iser_connect(struct iser_conn *iser_conn, struct sockaddr *src_addr, struct sockaddr *dst_addr, int non_blocking); void iser_unreg_mem_fmr(struct iscsi_iser_task *iser_task, enum iser_data_dir cmd_dir); void iser_unreg_mem_fastreg(struct iscsi_iser_task *iser_task, enum iser_data_dir cmd_dir); int iser_post_recvl(struct iser_conn *iser_conn); int iser_post_recvm(struct iser_conn *iser_conn, int count); int iser_post_send(struct ib_conn *ib_conn, struct iser_tx_desc *tx_desc, bool signal); int iser_dma_map_task_data(struct iscsi_iser_task *iser_task, struct iser_data_buf *data, enum iser_data_dir iser_dir, enum dma_data_direction dma_dir); void iser_dma_unmap_task_data(struct iscsi_iser_task *iser_task, struct iser_data_buf *data, enum dma_data_direction dir); int iser_initialize_task_headers(struct iscsi_task *task, struct iser_tx_desc *tx_desc); int iser_alloc_rx_descriptors(struct iser_conn *iser_conn, struct iscsi_session *session); int iser_alloc_fmr_pool(struct ib_conn *ib_conn, unsigned cmds_max, unsigned int size); void iser_free_fmr_pool(struct ib_conn *ib_conn); int iser_alloc_fastreg_pool(struct ib_conn *ib_conn, unsigned cmds_max, unsigned int size); void iser_free_fastreg_pool(struct ib_conn *ib_conn); u8 iser_check_task_pi_status(struct iscsi_iser_task *iser_task, enum iser_data_dir cmd_dir, sector_t *sector); struct iser_fr_desc * iser_reg_desc_get_fr(struct ib_conn *ib_conn); void iser_reg_desc_put_fr(struct ib_conn *ib_conn, struct iser_fr_desc *desc); struct iser_fr_desc * iser_reg_desc_get_fmr(struct ib_conn *ib_conn); void iser_reg_desc_put_fmr(struct ib_conn *ib_conn, struct iser_fr_desc *desc); static inline struct ib_send_wr * iser_tx_next_wr(struct iser_tx_desc *tx_desc) { struct ib_send_wr *cur_wr = &tx_desc->wrs[tx_desc->wr_idx].send; struct ib_send_wr *last_wr; if (tx_desc->wr_idx) { last_wr = &tx_desc->wrs[tx_desc->wr_idx - 1].send; last_wr->next = cur_wr; } tx_desc->wr_idx++; return cur_wr; } static inline struct iser_conn * to_iser_conn(struct ib_conn *ib_conn) { return container_of(ib_conn, struct iser_conn, ib_conn); } static inline struct iser_rx_desc * iser_rx(struct ib_cqe *cqe) { return container_of(cqe, struct iser_rx_desc, cqe); } static inline struct iser_tx_desc * iser_tx(struct ib_cqe *cqe) { return container_of(cqe, struct iser_tx_desc, cqe); } static inline struct iser_login_desc * iser_login(struct ib_cqe *cqe) { return container_of(cqe, struct iser_login_desc, cqe); } #endif
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