1d613b6a7SJames Smart /******************************************************************* 2d613b6a7SJames Smart * This file is part of the Emulex Linux Device Driver for * 3d613b6a7SJames Smart * Fibre Channsel Host Bus Adapters. * 4d080abe0SJames Smart * Copyright (C) 2017 Broadcom. All Rights Reserved. The term * 5d080abe0SJames Smart * “Broadcom” refers to Broadcom Limited and/or its subsidiaries. * 6d613b6a7SJames Smart * Copyright (C) 2004-2016 Emulex. All rights reserved. * 7d613b6a7SJames Smart * EMULEX and SLI are trademarks of Emulex. * 8d080abe0SJames Smart * www.broadcom.com * 9d613b6a7SJames Smart * Portions Copyright (C) 2004-2005 Christoph Hellwig * 10d613b6a7SJames Smart * * 11d613b6a7SJames Smart * This program is free software; you can redistribute it and/or * 12d613b6a7SJames Smart * modify it under the terms of version 2 of the GNU General * 13d613b6a7SJames Smart * Public License as published by the Free Software Foundation. * 14d613b6a7SJames Smart * This program is distributed in the hope that it will be useful. * 15d613b6a7SJames Smart * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 16d613b6a7SJames Smart * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 17d613b6a7SJames Smart * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 18d613b6a7SJames Smart * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 19d613b6a7SJames Smart * TO BE LEGALLY INVALID. See the GNU General Public License for * 20d613b6a7SJames Smart * more details, a copy of which can be found in the file COPYING * 21d613b6a7SJames Smart * included with this package. * 22d613b6a7SJames Smart ********************************************************************/ 23d613b6a7SJames Smart #include <linux/pci.h> 24d613b6a7SJames Smart #include <linux/slab.h> 25d613b6a7SJames Smart #include <linux/interrupt.h> 26d613b6a7SJames Smart #include <linux/delay.h> 27d613b6a7SJames Smart #include <asm/unaligned.h> 28d613b6a7SJames Smart #include <linux/crc-t10dif.h> 29d613b6a7SJames Smart #include <net/checksum.h> 30d613b6a7SJames Smart 31d613b6a7SJames Smart #include <scsi/scsi.h> 32d613b6a7SJames Smart #include <scsi/scsi_device.h> 33d613b6a7SJames Smart #include <scsi/scsi_eh.h> 34d613b6a7SJames Smart #include <scsi/scsi_host.h> 35d613b6a7SJames Smart #include <scsi/scsi_tcq.h> 36d613b6a7SJames Smart #include <scsi/scsi_transport_fc.h> 37d613b6a7SJames Smart #include <scsi/fc/fc_fs.h> 38d613b6a7SJames Smart 39d613b6a7SJames Smart #include <../drivers/nvme/host/nvme.h> 40d613b6a7SJames Smart #include <linux/nvme-fc-driver.h> 41d613b6a7SJames Smart 42d613b6a7SJames Smart #include "lpfc_version.h" 43d613b6a7SJames Smart #include "lpfc_hw4.h" 44d613b6a7SJames Smart #include "lpfc_hw.h" 45d613b6a7SJames Smart #include "lpfc_sli.h" 46d613b6a7SJames Smart #include "lpfc_sli4.h" 47d613b6a7SJames Smart #include "lpfc_nl.h" 48d613b6a7SJames Smart #include "lpfc_disc.h" 49d613b6a7SJames Smart #include "lpfc.h" 50d613b6a7SJames Smart #include "lpfc_scsi.h" 51d613b6a7SJames Smart #include "lpfc_nvme.h" 52d613b6a7SJames Smart #include "lpfc_nvmet.h" 53d613b6a7SJames Smart #include "lpfc_logmsg.h" 54d613b6a7SJames Smart #include "lpfc_crtn.h" 55d613b6a7SJames Smart #include "lpfc_vport.h" 562b65e182SJames Smart #include "lpfc_debugfs.h" 57d613b6a7SJames Smart 58d613b6a7SJames Smart static struct lpfc_iocbq *lpfc_nvmet_prep_ls_wqe(struct lpfc_hba *, 59d613b6a7SJames Smart struct lpfc_nvmet_rcv_ctx *, 60d613b6a7SJames Smart dma_addr_t rspbuf, 61d613b6a7SJames Smart uint16_t rspsize); 62d613b6a7SJames Smart static struct lpfc_iocbq *lpfc_nvmet_prep_fcp_wqe(struct lpfc_hba *, 63d613b6a7SJames Smart struct lpfc_nvmet_rcv_ctx *); 64d613b6a7SJames Smart static int lpfc_nvmet_sol_fcp_issue_abort(struct lpfc_hba *, 65d613b6a7SJames Smart struct lpfc_nvmet_rcv_ctx *, 66d613b6a7SJames Smart uint32_t, uint16_t); 67d613b6a7SJames Smart static int lpfc_nvmet_unsol_fcp_issue_abort(struct lpfc_hba *, 68d613b6a7SJames Smart struct lpfc_nvmet_rcv_ctx *, 69d613b6a7SJames Smart uint32_t, uint16_t); 70d613b6a7SJames Smart static int lpfc_nvmet_unsol_ls_issue_abort(struct lpfc_hba *, 71d613b6a7SJames Smart struct lpfc_nvmet_rcv_ctx *, 72d613b6a7SJames Smart uint32_t, uint16_t); 73d613b6a7SJames Smart 7486c67379SJames Smart void 7586c67379SJames Smart lpfc_nvmet_defer_release(struct lpfc_hba *phba, struct lpfc_nvmet_rcv_ctx *ctxp) 7686c67379SJames Smart { 7786c67379SJames Smart unsigned long iflag; 7886c67379SJames Smart 7986c67379SJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_ABTS, 8086c67379SJames Smart "6313 NVMET Defer ctx release xri x%x flg x%x\n", 8186c67379SJames Smart ctxp->oxid, ctxp->flag); 8286c67379SJames Smart 8386c67379SJames Smart spin_lock_irqsave(&phba->sli4_hba.abts_nvme_buf_list_lock, iflag); 8486c67379SJames Smart if (ctxp->flag & LPFC_NVMET_CTX_RLS) { 8586c67379SJames Smart spin_unlock_irqrestore(&phba->sli4_hba.abts_nvme_buf_list_lock, 8686c67379SJames Smart iflag); 8786c67379SJames Smart return; 8886c67379SJames Smart } 8986c67379SJames Smart ctxp->flag |= LPFC_NVMET_CTX_RLS; 9086c67379SJames Smart list_add_tail(&ctxp->list, &phba->sli4_hba.lpfc_abts_nvmet_ctx_list); 9186c67379SJames Smart spin_unlock_irqrestore(&phba->sli4_hba.abts_nvme_buf_list_lock, iflag); 9286c67379SJames Smart } 9386c67379SJames Smart 94d613b6a7SJames Smart /** 95d613b6a7SJames Smart * lpfc_nvmet_xmt_ls_rsp_cmp - Completion handler for LS Response 96d613b6a7SJames Smart * @phba: Pointer to HBA context object. 97d613b6a7SJames Smart * @cmdwqe: Pointer to driver command WQE object. 98d613b6a7SJames Smart * @wcqe: Pointer to driver response CQE object. 99d613b6a7SJames Smart * 100d613b6a7SJames Smart * The function is called from SLI ring event handler with no 101d613b6a7SJames Smart * lock held. This function is the completion handler for NVME LS commands 102d613b6a7SJames Smart * The function frees memory resources used for the NVME commands. 103d613b6a7SJames Smart **/ 104d613b6a7SJames Smart static void 105d613b6a7SJames Smart lpfc_nvmet_xmt_ls_rsp_cmp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdwqe, 106d613b6a7SJames Smart struct lpfc_wcqe_complete *wcqe) 107d613b6a7SJames Smart { 108d613b6a7SJames Smart struct lpfc_nvmet_tgtport *tgtp; 109d613b6a7SJames Smart struct nvmefc_tgt_ls_req *rsp; 110d613b6a7SJames Smart struct lpfc_nvmet_rcv_ctx *ctxp; 111d613b6a7SJames Smart uint32_t status, result; 112d613b6a7SJames Smart 113d613b6a7SJames Smart status = bf_get(lpfc_wcqe_c_status, wcqe); 114d613b6a7SJames Smart result = wcqe->parameter; 115ce1b591cSJames Smart ctxp = cmdwqe->context2; 116ce1b591cSJames Smart 117ce1b591cSJames Smart if (ctxp->state != LPFC_NVMET_STE_LS_RSP || ctxp->entry_cnt != 2) { 118ce1b591cSJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR, 119ce1b591cSJames Smart "6410 NVMET LS cmpl state mismatch IO x%x: " 120ce1b591cSJames Smart "%d %d\n", 121ce1b591cSJames Smart ctxp->oxid, ctxp->state, ctxp->entry_cnt); 122ce1b591cSJames Smart } 123ce1b591cSJames Smart 124d613b6a7SJames Smart if (!phba->targetport) 125d613b6a7SJames Smart goto out; 126d613b6a7SJames Smart 127d613b6a7SJames Smart tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 128d613b6a7SJames Smart 129d613b6a7SJames Smart if (status) 130d613b6a7SJames Smart atomic_inc(&tgtp->xmt_ls_rsp_error); 131d613b6a7SJames Smart else 132d613b6a7SJames Smart atomic_inc(&tgtp->xmt_ls_rsp_cmpl); 133d613b6a7SJames Smart 134d613b6a7SJames Smart out: 135d613b6a7SJames Smart rsp = &ctxp->ctx.ls_req; 136d613b6a7SJames Smart 1372b65e182SJames Smart lpfc_nvmeio_data(phba, "NVMET LS CMPL: xri x%x stat x%x result x%x\n", 1382b65e182SJames Smart ctxp->oxid, status, result); 1392b65e182SJames Smart 140d613b6a7SJames Smart lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC, 141ce1b591cSJames Smart "6038 NVMET LS rsp cmpl: %d %d oxid x%x\n", 142ce1b591cSJames Smart status, result, ctxp->oxid); 143d613b6a7SJames Smart 144d613b6a7SJames Smart lpfc_nlp_put(cmdwqe->context1); 145d613b6a7SJames Smart cmdwqe->context2 = NULL; 146d613b6a7SJames Smart cmdwqe->context3 = NULL; 147d613b6a7SJames Smart lpfc_sli_release_iocbq(phba, cmdwqe); 148d613b6a7SJames Smart rsp->done(rsp); 149d613b6a7SJames Smart kfree(ctxp); 150d613b6a7SJames Smart } 151d613b6a7SJames Smart 152d613b6a7SJames Smart /** 1536c621a22SJames Smart * lpfc_nvmet_ctxbuf_post - Repost a NVMET RQ DMA buffer and clean up context 154d613b6a7SJames Smart * @phba: HBA buffer is associated with 155d613b6a7SJames Smart * @ctxp: context to clean up 156d613b6a7SJames Smart * @mp: Buffer to free 157d613b6a7SJames Smart * 158d613b6a7SJames Smart * Description: Frees the given DMA buffer in the appropriate way given by 159d613b6a7SJames Smart * reposting it to its associated RQ so it can be reused. 160d613b6a7SJames Smart * 161d613b6a7SJames Smart * Notes: Takes phba->hbalock. Can be called with or without other locks held. 162d613b6a7SJames Smart * 163d613b6a7SJames Smart * Returns: None 164d613b6a7SJames Smart **/ 165d613b6a7SJames Smart void 1666c621a22SJames Smart lpfc_nvmet_ctxbuf_post(struct lpfc_hba *phba, struct lpfc_nvmet_ctxbuf *ctx_buf) 167d613b6a7SJames Smart { 168eeeb51d8SJames Smart #if (IS_ENABLED(CONFIG_NVME_TARGET_FC)) 1696c621a22SJames Smart struct lpfc_nvmet_rcv_ctx *ctxp = ctx_buf->context; 170a8cf5dfeSJames Smart struct lpfc_nvmet_tgtport *tgtp; 171a8cf5dfeSJames Smart struct fc_frame_header *fc_hdr; 172a8cf5dfeSJames Smart struct rqb_dmabuf *nvmebuf; 17366d7ce93SDick Kennedy struct lpfc_nvmet_ctx_info *infop; 174a8cf5dfeSJames Smart uint32_t *payload; 175a8cf5dfeSJames Smart uint32_t size, oxid, sid, rc; 17666d7ce93SDick Kennedy int cpu; 1776c621a22SJames Smart unsigned long iflag; 17886c67379SJames Smart 179d613b6a7SJames Smart if (ctxp->txrdy) { 180771db5c0SRomain Perier dma_pool_free(phba->txrdy_payload_pool, ctxp->txrdy, 181d613b6a7SJames Smart ctxp->txrdy_phys); 182d613b6a7SJames Smart ctxp->txrdy = NULL; 183d613b6a7SJames Smart ctxp->txrdy_phys = 0; 184d613b6a7SJames Smart } 185ce1b591cSJames Smart 186ce1b591cSJames Smart if (ctxp->state == LPFC_NVMET_STE_FREE) { 187ce1b591cSJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR, 188ce1b591cSJames Smart "6411 NVMET free, already free IO x%x: %d %d\n", 189ce1b591cSJames Smart ctxp->oxid, ctxp->state, ctxp->entry_cnt); 190ce1b591cSJames Smart } 191d613b6a7SJames Smart ctxp->state = LPFC_NVMET_STE_FREE; 1926c621a22SJames Smart 193a8cf5dfeSJames Smart spin_lock_irqsave(&phba->sli4_hba.nvmet_io_wait_lock, iflag); 194a8cf5dfeSJames Smart if (phba->sli4_hba.nvmet_io_wait_cnt) { 195a8cf5dfeSJames Smart list_remove_head(&phba->sli4_hba.lpfc_nvmet_io_wait_list, 196a8cf5dfeSJames Smart nvmebuf, struct rqb_dmabuf, 197a8cf5dfeSJames Smart hbuf.list); 198a8cf5dfeSJames Smart phba->sli4_hba.nvmet_io_wait_cnt--; 199a8cf5dfeSJames Smart spin_unlock_irqrestore(&phba->sli4_hba.nvmet_io_wait_lock, 200a8cf5dfeSJames Smart iflag); 201a8cf5dfeSJames Smart 202a8cf5dfeSJames Smart fc_hdr = (struct fc_frame_header *)(nvmebuf->hbuf.virt); 203a8cf5dfeSJames Smart oxid = be16_to_cpu(fc_hdr->fh_ox_id); 204a8cf5dfeSJames Smart tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 205a8cf5dfeSJames Smart payload = (uint32_t *)(nvmebuf->dbuf.virt); 206a8cf5dfeSJames Smart size = nvmebuf->bytes_recv; 207a8cf5dfeSJames Smart sid = sli4_sid_from_fc_hdr(fc_hdr); 208a8cf5dfeSJames Smart 209a8cf5dfeSJames Smart ctxp = (struct lpfc_nvmet_rcv_ctx *)ctx_buf->context; 210a8cf5dfeSJames Smart ctxp->wqeq = NULL; 211a8cf5dfeSJames Smart ctxp->txrdy = NULL; 212a8cf5dfeSJames Smart ctxp->offset = 0; 213a8cf5dfeSJames Smart ctxp->phba = phba; 214a8cf5dfeSJames Smart ctxp->size = size; 215a8cf5dfeSJames Smart ctxp->oxid = oxid; 216a8cf5dfeSJames Smart ctxp->sid = sid; 217a8cf5dfeSJames Smart ctxp->state = LPFC_NVMET_STE_RCV; 218a8cf5dfeSJames Smart ctxp->entry_cnt = 1; 219a8cf5dfeSJames Smart ctxp->flag = 0; 220a8cf5dfeSJames Smart ctxp->ctxbuf = ctx_buf; 221a8cf5dfeSJames Smart spin_lock_init(&ctxp->ctxlock); 222a8cf5dfeSJames Smart 223a8cf5dfeSJames Smart #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 224a8cf5dfeSJames Smart if (phba->ktime_on) { 225a8cf5dfeSJames Smart ctxp->ts_cmd_nvme = ktime_get_ns(); 226a8cf5dfeSJames Smart ctxp->ts_isr_cmd = ctxp->ts_cmd_nvme; 227a8cf5dfeSJames Smart ctxp->ts_nvme_data = 0; 228a8cf5dfeSJames Smart ctxp->ts_data_wqput = 0; 229a8cf5dfeSJames Smart ctxp->ts_isr_data = 0; 230a8cf5dfeSJames Smart ctxp->ts_data_nvme = 0; 231a8cf5dfeSJames Smart ctxp->ts_nvme_status = 0; 232a8cf5dfeSJames Smart ctxp->ts_status_wqput = 0; 233a8cf5dfeSJames Smart ctxp->ts_isr_status = 0; 234a8cf5dfeSJames Smart ctxp->ts_status_nvme = 0; 235d613b6a7SJames Smart } 236a8cf5dfeSJames Smart #endif 237a8cf5dfeSJames Smart atomic_inc(&tgtp->rcv_fcp_cmd_in); 238a8cf5dfeSJames Smart /* 239a8cf5dfeSJames Smart * The calling sequence should be: 240a8cf5dfeSJames Smart * nvmet_fc_rcv_fcp_req->lpfc_nvmet_xmt_fcp_op/cmp- req->done 241a8cf5dfeSJames Smart * lpfc_nvmet_xmt_fcp_op_cmp should free the allocated ctxp. 242a8cf5dfeSJames Smart * When we return from nvmet_fc_rcv_fcp_req, all relevant info 243a8cf5dfeSJames Smart * the NVME command / FC header is stored. 244a8cf5dfeSJames Smart * A buffer has already been reposted for this IO, so just free 245a8cf5dfeSJames Smart * the nvmebuf. 246a8cf5dfeSJames Smart */ 247a8cf5dfeSJames Smart rc = nvmet_fc_rcv_fcp_req(phba->targetport, &ctxp->ctx.fcp_req, 248a8cf5dfeSJames Smart payload, size); 249a8cf5dfeSJames Smart 250a8cf5dfeSJames Smart /* Process FCP command */ 251a8cf5dfeSJames Smart if (rc == 0) { 252a8cf5dfeSJames Smart atomic_inc(&tgtp->rcv_fcp_cmd_out); 253a8cf5dfeSJames Smart nvmebuf->hrq->rqbp->rqb_free_buffer(phba, nvmebuf); 254a8cf5dfeSJames Smart return; 255a8cf5dfeSJames Smart } 256a8cf5dfeSJames Smart 257a8cf5dfeSJames Smart atomic_inc(&tgtp->rcv_fcp_cmd_drop); 258a8cf5dfeSJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR, 259a8cf5dfeSJames Smart "2582 FCP Drop IO x%x: err x%x: x%x x%x x%x\n", 260a8cf5dfeSJames Smart ctxp->oxid, rc, 261a8cf5dfeSJames Smart atomic_read(&tgtp->rcv_fcp_cmd_in), 262a8cf5dfeSJames Smart atomic_read(&tgtp->rcv_fcp_cmd_out), 263a8cf5dfeSJames Smart atomic_read(&tgtp->xmt_fcp_release)); 264a8cf5dfeSJames Smart 265a8cf5dfeSJames Smart lpfc_nvmet_defer_release(phba, ctxp); 266a8cf5dfeSJames Smart lpfc_nvmet_unsol_fcp_issue_abort(phba, ctxp, sid, oxid); 267a8cf5dfeSJames Smart nvmebuf->hrq->rqbp->rqb_free_buffer(phba, nvmebuf); 268a8cf5dfeSJames Smart return; 269a8cf5dfeSJames Smart } 270a8cf5dfeSJames Smart spin_unlock_irqrestore(&phba->sli4_hba.nvmet_io_wait_lock, iflag); 271a8cf5dfeSJames Smart 27266d7ce93SDick Kennedy /* 27366d7ce93SDick Kennedy * Use the CPU context list, from the MRQ the IO was received on 27466d7ce93SDick Kennedy * (ctxp->idx), to save context structure. 27566d7ce93SDick Kennedy */ 27666d7ce93SDick Kennedy cpu = smp_processor_id(); 27766d7ce93SDick Kennedy infop = lpfc_get_ctx_list(phba, cpu, ctxp->idx); 27866d7ce93SDick Kennedy spin_lock_irqsave(&infop->nvmet_ctx_list_lock, iflag); 27966d7ce93SDick Kennedy list_add_tail(&ctx_buf->list, &infop->nvmet_ctx_list); 28066d7ce93SDick Kennedy infop->nvmet_ctx_list_cnt++; 28166d7ce93SDick Kennedy spin_unlock_irqrestore(&infop->nvmet_ctx_list_lock, iflag); 282eeeb51d8SJames Smart #endif 283d613b6a7SJames Smart } 284d613b6a7SJames Smart 2852b65e182SJames Smart #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 2862b65e182SJames Smart static void 2872b65e182SJames Smart lpfc_nvmet_ktime(struct lpfc_hba *phba, 2882b65e182SJames Smart struct lpfc_nvmet_rcv_ctx *ctxp) 2892b65e182SJames Smart { 2902b65e182SJames Smart uint64_t seg1, seg2, seg3, seg4, seg5; 2912b65e182SJames Smart uint64_t seg6, seg7, seg8, seg9, seg10; 2922b65e182SJames Smart 2932b65e182SJames Smart if (!phba->ktime_on) 2942b65e182SJames Smart return; 2952b65e182SJames Smart 2962b65e182SJames Smart if (!ctxp->ts_isr_cmd || !ctxp->ts_cmd_nvme || 2972b65e182SJames Smart !ctxp->ts_nvme_data || !ctxp->ts_data_wqput || 2982b65e182SJames Smart !ctxp->ts_isr_data || !ctxp->ts_data_nvme || 2992b65e182SJames Smart !ctxp->ts_nvme_status || !ctxp->ts_status_wqput || 3002b65e182SJames Smart !ctxp->ts_isr_status || !ctxp->ts_status_nvme) 3012b65e182SJames Smart return; 3022b65e182SJames Smart 3032b65e182SJames Smart if (ctxp->ts_isr_cmd > ctxp->ts_cmd_nvme) 3042b65e182SJames Smart return; 3052b65e182SJames Smart if (ctxp->ts_cmd_nvme > ctxp->ts_nvme_data) 3062b65e182SJames Smart return; 3072b65e182SJames Smart if (ctxp->ts_nvme_data > ctxp->ts_data_wqput) 3082b65e182SJames Smart return; 3092b65e182SJames Smart if (ctxp->ts_data_wqput > ctxp->ts_isr_data) 3102b65e182SJames Smart return; 3112b65e182SJames Smart if (ctxp->ts_isr_data > ctxp->ts_data_nvme) 3122b65e182SJames Smart return; 3132b65e182SJames Smart if (ctxp->ts_data_nvme > ctxp->ts_nvme_status) 3142b65e182SJames Smart return; 3152b65e182SJames Smart if (ctxp->ts_nvme_status > ctxp->ts_status_wqput) 3162b65e182SJames Smart return; 3172b65e182SJames Smart if (ctxp->ts_status_wqput > ctxp->ts_isr_status) 3182b65e182SJames Smart return; 3192b65e182SJames Smart if (ctxp->ts_isr_status > ctxp->ts_status_nvme) 3202b65e182SJames Smart return; 3212b65e182SJames Smart /* 3222b65e182SJames Smart * Segment 1 - Time from FCP command received by MSI-X ISR 3232b65e182SJames Smart * to FCP command is passed to NVME Layer. 3242b65e182SJames Smart * Segment 2 - Time from FCP command payload handed 3252b65e182SJames Smart * off to NVME Layer to Driver receives a Command op 3262b65e182SJames Smart * from NVME Layer. 3272b65e182SJames Smart * Segment 3 - Time from Driver receives a Command op 3282b65e182SJames Smart * from NVME Layer to Command is put on WQ. 3292b65e182SJames Smart * Segment 4 - Time from Driver WQ put is done 3302b65e182SJames Smart * to MSI-X ISR for Command cmpl. 3312b65e182SJames Smart * Segment 5 - Time from MSI-X ISR for Command cmpl to 3322b65e182SJames Smart * Command cmpl is passed to NVME Layer. 3332b65e182SJames Smart * Segment 6 - Time from Command cmpl is passed to NVME 3342b65e182SJames Smart * Layer to Driver receives a RSP op from NVME Layer. 3352b65e182SJames Smart * Segment 7 - Time from Driver receives a RSP op from 3362b65e182SJames Smart * NVME Layer to WQ put is done on TRSP FCP Status. 3372b65e182SJames Smart * Segment 8 - Time from Driver WQ put is done on TRSP 3382b65e182SJames Smart * FCP Status to MSI-X ISR for TRSP cmpl. 3392b65e182SJames Smart * Segment 9 - Time from MSI-X ISR for TRSP cmpl to 3402b65e182SJames Smart * TRSP cmpl is passed to NVME Layer. 3412b65e182SJames Smart * Segment 10 - Time from FCP command received by 3422b65e182SJames Smart * MSI-X ISR to command is completed on wire. 3432b65e182SJames Smart * (Segments 1 thru 8) for READDATA / WRITEDATA 3442b65e182SJames Smart * (Segments 1 thru 4) for READDATA_RSP 3452b65e182SJames Smart */ 3462b65e182SJames Smart seg1 = ctxp->ts_cmd_nvme - ctxp->ts_isr_cmd; 3472b65e182SJames Smart seg2 = (ctxp->ts_nvme_data - ctxp->ts_isr_cmd) - seg1; 3482b65e182SJames Smart seg3 = (ctxp->ts_data_wqput - ctxp->ts_isr_cmd) - 3492b65e182SJames Smart seg1 - seg2; 3502b65e182SJames Smart seg4 = (ctxp->ts_isr_data - ctxp->ts_isr_cmd) - 3512b65e182SJames Smart seg1 - seg2 - seg3; 3522b65e182SJames Smart seg5 = (ctxp->ts_data_nvme - ctxp->ts_isr_cmd) - 3532b65e182SJames Smart seg1 - seg2 - seg3 - seg4; 3542b65e182SJames Smart 3552b65e182SJames Smart /* For auto rsp commands seg6 thru seg10 will be 0 */ 3562b65e182SJames Smart if (ctxp->ts_nvme_status > ctxp->ts_data_nvme) { 3572b65e182SJames Smart seg6 = (ctxp->ts_nvme_status - 3582b65e182SJames Smart ctxp->ts_isr_cmd) - 3592b65e182SJames Smart seg1 - seg2 - seg3 - seg4 - seg5; 3602b65e182SJames Smart seg7 = (ctxp->ts_status_wqput - 3612b65e182SJames Smart ctxp->ts_isr_cmd) - 3622b65e182SJames Smart seg1 - seg2 - seg3 - 3632b65e182SJames Smart seg4 - seg5 - seg6; 3642b65e182SJames Smart seg8 = (ctxp->ts_isr_status - 3652b65e182SJames Smart ctxp->ts_isr_cmd) - 3662b65e182SJames Smart seg1 - seg2 - seg3 - seg4 - 3672b65e182SJames Smart seg5 - seg6 - seg7; 3682b65e182SJames Smart seg9 = (ctxp->ts_status_nvme - 3692b65e182SJames Smart ctxp->ts_isr_cmd) - 3702b65e182SJames Smart seg1 - seg2 - seg3 - seg4 - 3712b65e182SJames Smart seg5 - seg6 - seg7 - seg8; 3722b65e182SJames Smart seg10 = (ctxp->ts_isr_status - 3732b65e182SJames Smart ctxp->ts_isr_cmd); 3742b65e182SJames Smart } else { 3752b65e182SJames Smart seg6 = 0; 3762b65e182SJames Smart seg7 = 0; 3772b65e182SJames Smart seg8 = 0; 3782b65e182SJames Smart seg9 = 0; 3792b65e182SJames Smart seg10 = (ctxp->ts_isr_data - ctxp->ts_isr_cmd); 3802b65e182SJames Smart } 3812b65e182SJames Smart 3822b65e182SJames Smart phba->ktime_seg1_total += seg1; 3832b65e182SJames Smart if (seg1 < phba->ktime_seg1_min) 3842b65e182SJames Smart phba->ktime_seg1_min = seg1; 3852b65e182SJames Smart else if (seg1 > phba->ktime_seg1_max) 3862b65e182SJames Smart phba->ktime_seg1_max = seg1; 3872b65e182SJames Smart 3882b65e182SJames Smart phba->ktime_seg2_total += seg2; 3892b65e182SJames Smart if (seg2 < phba->ktime_seg2_min) 3902b65e182SJames Smart phba->ktime_seg2_min = seg2; 3912b65e182SJames Smart else if (seg2 > phba->ktime_seg2_max) 3922b65e182SJames Smart phba->ktime_seg2_max = seg2; 3932b65e182SJames Smart 3942b65e182SJames Smart phba->ktime_seg3_total += seg3; 3952b65e182SJames Smart if (seg3 < phba->ktime_seg3_min) 3962b65e182SJames Smart phba->ktime_seg3_min = seg3; 3972b65e182SJames Smart else if (seg3 > phba->ktime_seg3_max) 3982b65e182SJames Smart phba->ktime_seg3_max = seg3; 3992b65e182SJames Smart 4002b65e182SJames Smart phba->ktime_seg4_total += seg4; 4012b65e182SJames Smart if (seg4 < phba->ktime_seg4_min) 4022b65e182SJames Smart phba->ktime_seg4_min = seg4; 4032b65e182SJames Smart else if (seg4 > phba->ktime_seg4_max) 4042b65e182SJames Smart phba->ktime_seg4_max = seg4; 4052b65e182SJames Smart 4062b65e182SJames Smart phba->ktime_seg5_total += seg5; 4072b65e182SJames Smart if (seg5 < phba->ktime_seg5_min) 4082b65e182SJames Smart phba->ktime_seg5_min = seg5; 4092b65e182SJames Smart else if (seg5 > phba->ktime_seg5_max) 4102b65e182SJames Smart phba->ktime_seg5_max = seg5; 4112b65e182SJames Smart 4122b65e182SJames Smart phba->ktime_data_samples++; 4132b65e182SJames Smart if (!seg6) 4142b65e182SJames Smart goto out; 4152b65e182SJames Smart 4162b65e182SJames Smart phba->ktime_seg6_total += seg6; 4172b65e182SJames Smart if (seg6 < phba->ktime_seg6_min) 4182b65e182SJames Smart phba->ktime_seg6_min = seg6; 4192b65e182SJames Smart else if (seg6 > phba->ktime_seg6_max) 4202b65e182SJames Smart phba->ktime_seg6_max = seg6; 4212b65e182SJames Smart 4222b65e182SJames Smart phba->ktime_seg7_total += seg7; 4232b65e182SJames Smart if (seg7 < phba->ktime_seg7_min) 4242b65e182SJames Smart phba->ktime_seg7_min = seg7; 4252b65e182SJames Smart else if (seg7 > phba->ktime_seg7_max) 4262b65e182SJames Smart phba->ktime_seg7_max = seg7; 4272b65e182SJames Smart 4282b65e182SJames Smart phba->ktime_seg8_total += seg8; 4292b65e182SJames Smart if (seg8 < phba->ktime_seg8_min) 4302b65e182SJames Smart phba->ktime_seg8_min = seg8; 4312b65e182SJames Smart else if (seg8 > phba->ktime_seg8_max) 4322b65e182SJames Smart phba->ktime_seg8_max = seg8; 4332b65e182SJames Smart 4342b65e182SJames Smart phba->ktime_seg9_total += seg9; 4352b65e182SJames Smart if (seg9 < phba->ktime_seg9_min) 4362b65e182SJames Smart phba->ktime_seg9_min = seg9; 4372b65e182SJames Smart else if (seg9 > phba->ktime_seg9_max) 4382b65e182SJames Smart phba->ktime_seg9_max = seg9; 4392b65e182SJames Smart out: 4402b65e182SJames Smart phba->ktime_seg10_total += seg10; 4412b65e182SJames Smart if (seg10 < phba->ktime_seg10_min) 4422b65e182SJames Smart phba->ktime_seg10_min = seg10; 4432b65e182SJames Smart else if (seg10 > phba->ktime_seg10_max) 4442b65e182SJames Smart phba->ktime_seg10_max = seg10; 4452b65e182SJames Smart phba->ktime_status_samples++; 4462b65e182SJames Smart } 4472b65e182SJames Smart #endif 4482b65e182SJames Smart 449d613b6a7SJames Smart /** 450d613b6a7SJames Smart * lpfc_nvmet_xmt_fcp_op_cmp - Completion handler for FCP Response 451d613b6a7SJames Smart * @phba: Pointer to HBA context object. 452d613b6a7SJames Smart * @cmdwqe: Pointer to driver command WQE object. 453d613b6a7SJames Smart * @wcqe: Pointer to driver response CQE object. 454d613b6a7SJames Smart * 455d613b6a7SJames Smart * The function is called from SLI ring event handler with no 456d613b6a7SJames Smart * lock held. This function is the completion handler for NVME FCP commands 457d613b6a7SJames Smart * The function frees memory resources used for the NVME commands. 458d613b6a7SJames Smart **/ 459d613b6a7SJames Smart static void 460d613b6a7SJames Smart lpfc_nvmet_xmt_fcp_op_cmp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdwqe, 461d613b6a7SJames Smart struct lpfc_wcqe_complete *wcqe) 462d613b6a7SJames Smart { 463d613b6a7SJames Smart struct lpfc_nvmet_tgtport *tgtp; 464d613b6a7SJames Smart struct nvmefc_tgt_fcp_req *rsp; 465d613b6a7SJames Smart struct lpfc_nvmet_rcv_ctx *ctxp; 466d613b6a7SJames Smart uint32_t status, result, op, start_clean; 4672b65e182SJames Smart #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 4682b65e182SJames Smart uint32_t id; 4692b65e182SJames Smart #endif 470d613b6a7SJames Smart 471d613b6a7SJames Smart ctxp = cmdwqe->context2; 47286c67379SJames Smart ctxp->flag &= ~LPFC_NVMET_IO_INP; 47386c67379SJames Smart 474d613b6a7SJames Smart rsp = &ctxp->ctx.fcp_req; 475d613b6a7SJames Smart op = rsp->op; 476d613b6a7SJames Smart 477d613b6a7SJames Smart status = bf_get(lpfc_wcqe_c_status, wcqe); 478d613b6a7SJames Smart result = wcqe->parameter; 479d613b6a7SJames Smart 48086c67379SJames Smart if (phba->targetport) 48186c67379SJames Smart tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 48286c67379SJames Smart else 48386c67379SJames Smart tgtp = NULL; 484d613b6a7SJames Smart 4852b65e182SJames Smart lpfc_nvmeio_data(phba, "NVMET FCP CMPL: xri x%x op x%x status x%x\n", 4862b65e182SJames Smart ctxp->oxid, op, status); 4872b65e182SJames Smart 488d613b6a7SJames Smart if (status) { 489d613b6a7SJames Smart rsp->fcp_error = NVME_SC_DATA_XFER_ERROR; 490d613b6a7SJames Smart rsp->transferred_length = 0; 49186c67379SJames Smart if (tgtp) 492d613b6a7SJames Smart atomic_inc(&tgtp->xmt_fcp_rsp_error); 49386c67379SJames Smart 49486c67379SJames Smart /* pick up SLI4 exhange busy condition */ 49586c67379SJames Smart if (bf_get(lpfc_wcqe_c_xb, wcqe)) { 49686c67379SJames Smart ctxp->flag |= LPFC_NVMET_XBUSY; 49786c67379SJames Smart 49886c67379SJames Smart lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS, 49986c67379SJames Smart "6315 IO Cmpl XBUSY: xri x%x: %x/%x\n", 50086c67379SJames Smart ctxp->oxid, status, result); 50186c67379SJames Smart } else { 50286c67379SJames Smart ctxp->flag &= ~LPFC_NVMET_XBUSY; 50386c67379SJames Smart } 50486c67379SJames Smart 505d613b6a7SJames Smart } else { 506d613b6a7SJames Smart rsp->fcp_error = NVME_SC_SUCCESS; 507d613b6a7SJames Smart if (op == NVMET_FCOP_RSP) 508d613b6a7SJames Smart rsp->transferred_length = rsp->rsplen; 509d613b6a7SJames Smart else 510d613b6a7SJames Smart rsp->transferred_length = rsp->transfer_length; 51186c67379SJames Smart if (tgtp) 512d613b6a7SJames Smart atomic_inc(&tgtp->xmt_fcp_rsp_cmpl); 513d613b6a7SJames Smart } 514d613b6a7SJames Smart 515d613b6a7SJames Smart if ((op == NVMET_FCOP_READDATA_RSP) || 516d613b6a7SJames Smart (op == NVMET_FCOP_RSP)) { 517d613b6a7SJames Smart /* Sanity check */ 518d613b6a7SJames Smart ctxp->state = LPFC_NVMET_STE_DONE; 519d613b6a7SJames Smart ctxp->entry_cnt++; 52086c67379SJames Smart 5212b65e182SJames Smart #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 5222b65e182SJames Smart if (phba->ktime_on) { 5232b65e182SJames Smart if (rsp->op == NVMET_FCOP_READDATA_RSP) { 5242b65e182SJames Smart ctxp->ts_isr_data = 5252b65e182SJames Smart cmdwqe->isr_timestamp; 5262b65e182SJames Smart ctxp->ts_data_nvme = 5272b65e182SJames Smart ktime_get_ns(); 5282b65e182SJames Smart ctxp->ts_nvme_status = 5292b65e182SJames Smart ctxp->ts_data_nvme; 5302b65e182SJames Smart ctxp->ts_status_wqput = 5312b65e182SJames Smart ctxp->ts_data_nvme; 5322b65e182SJames Smart ctxp->ts_isr_status = 5332b65e182SJames Smart ctxp->ts_data_nvme; 5342b65e182SJames Smart ctxp->ts_status_nvme = 5352b65e182SJames Smart ctxp->ts_data_nvme; 5362b65e182SJames Smart } else { 5372b65e182SJames Smart ctxp->ts_isr_status = 5382b65e182SJames Smart cmdwqe->isr_timestamp; 5392b65e182SJames Smart ctxp->ts_status_nvme = 5402b65e182SJames Smart ktime_get_ns(); 5412b65e182SJames Smart } 5422b65e182SJames Smart } 5432b65e182SJames Smart if (phba->cpucheck_on & LPFC_CHECK_NVMET_IO) { 5442b65e182SJames Smart id = smp_processor_id(); 5452b65e182SJames Smart if (ctxp->cpu != id) 5462b65e182SJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR, 5472b65e182SJames Smart "6703 CPU Check cmpl: " 5482b65e182SJames Smart "cpu %d expect %d\n", 5492b65e182SJames Smart id, ctxp->cpu); 5502b65e182SJames Smart if (ctxp->cpu < LPFC_CHECK_CPU_CNT) 5512b65e182SJames Smart phba->cpucheck_cmpl_io[id]++; 5522b65e182SJames Smart } 5532b65e182SJames Smart #endif 554d613b6a7SJames Smart rsp->done(rsp); 5552b65e182SJames Smart #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 5562b65e182SJames Smart if (phba->ktime_on) 5572b65e182SJames Smart lpfc_nvmet_ktime(phba, ctxp); 5582b65e182SJames Smart #endif 55919b58d94SJames Smart /* lpfc_nvmet_xmt_fcp_release() will recycle the context */ 560d613b6a7SJames Smart } else { 561d613b6a7SJames Smart ctxp->entry_cnt++; 562c6e0c925SDick Kennedy start_clean = offsetof(struct lpfc_iocbq, iocb_flag); 563d613b6a7SJames Smart memset(((char *)cmdwqe) + start_clean, 0, 564d613b6a7SJames Smart (sizeof(struct lpfc_iocbq) - start_clean)); 5652b65e182SJames Smart #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 5662b65e182SJames Smart if (phba->ktime_on) { 5672b65e182SJames Smart ctxp->ts_isr_data = cmdwqe->isr_timestamp; 5682b65e182SJames Smart ctxp->ts_data_nvme = ktime_get_ns(); 5692b65e182SJames Smart } 5702b65e182SJames Smart if (phba->cpucheck_on & LPFC_CHECK_NVMET_IO) { 5712b65e182SJames Smart id = smp_processor_id(); 5722b65e182SJames Smart if (ctxp->cpu != id) 5732b65e182SJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR, 5742b65e182SJames Smart "6704 CPU Check cmdcmpl: " 5752b65e182SJames Smart "cpu %d expect %d\n", 5762b65e182SJames Smart id, ctxp->cpu); 5772b65e182SJames Smart if (ctxp->cpu < LPFC_CHECK_CPU_CNT) 5782b65e182SJames Smart phba->cpucheck_ccmpl_io[id]++; 5792b65e182SJames Smart } 5802b65e182SJames Smart #endif 581d613b6a7SJames Smart rsp->done(rsp); 582d613b6a7SJames Smart } 583d613b6a7SJames Smart } 584d613b6a7SJames Smart 585d613b6a7SJames Smart static int 586d613b6a7SJames Smart lpfc_nvmet_xmt_ls_rsp(struct nvmet_fc_target_port *tgtport, 587d613b6a7SJames Smart struct nvmefc_tgt_ls_req *rsp) 588d613b6a7SJames Smart { 589d613b6a7SJames Smart struct lpfc_nvmet_rcv_ctx *ctxp = 590d613b6a7SJames Smart container_of(rsp, struct lpfc_nvmet_rcv_ctx, ctx.ls_req); 591d613b6a7SJames Smart struct lpfc_hba *phba = ctxp->phba; 592d613b6a7SJames Smart struct hbq_dmabuf *nvmebuf = 593d613b6a7SJames Smart (struct hbq_dmabuf *)ctxp->rqb_buffer; 594d613b6a7SJames Smart struct lpfc_iocbq *nvmewqeq; 595d613b6a7SJames Smart struct lpfc_nvmet_tgtport *nvmep = tgtport->private; 596d613b6a7SJames Smart struct lpfc_dmabuf dmabuf; 597d613b6a7SJames Smart struct ulp_bde64 bpl; 598d613b6a7SJames Smart int rc; 599d613b6a7SJames Smart 600d613b6a7SJames Smart lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC, 601ce1b591cSJames Smart "6023 NVMET LS rsp oxid x%x\n", ctxp->oxid); 602ce1b591cSJames Smart 603ce1b591cSJames Smart if ((ctxp->state != LPFC_NVMET_STE_LS_RCV) || 604ce1b591cSJames Smart (ctxp->entry_cnt != 1)) { 605ce1b591cSJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR, 606ce1b591cSJames Smart "6412 NVMET LS rsp state mismatch " 607ce1b591cSJames Smart "oxid x%x: %d %d\n", 608ce1b591cSJames Smart ctxp->oxid, ctxp->state, ctxp->entry_cnt); 609ce1b591cSJames Smart } 610ce1b591cSJames Smart ctxp->state = LPFC_NVMET_STE_LS_RSP; 611ce1b591cSJames Smart ctxp->entry_cnt++; 612d613b6a7SJames Smart 613d613b6a7SJames Smart nvmewqeq = lpfc_nvmet_prep_ls_wqe(phba, ctxp, rsp->rspdma, 614d613b6a7SJames Smart rsp->rsplen); 615d613b6a7SJames Smart if (nvmewqeq == NULL) { 616d613b6a7SJames Smart atomic_inc(&nvmep->xmt_ls_drop); 617d613b6a7SJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR, 618d613b6a7SJames Smart "6150 LS Drop IO x%x: Prep\n", 619d613b6a7SJames Smart ctxp->oxid); 620d613b6a7SJames Smart lpfc_in_buf_free(phba, &nvmebuf->dbuf); 621547077a4SJames Smart atomic_inc(&nvmep->xmt_ls_abort); 622d613b6a7SJames Smart lpfc_nvmet_unsol_ls_issue_abort(phba, ctxp, 623d613b6a7SJames Smart ctxp->sid, ctxp->oxid); 624d613b6a7SJames Smart return -ENOMEM; 625d613b6a7SJames Smart } 626d613b6a7SJames Smart 627d613b6a7SJames Smart /* Save numBdes for bpl2sgl */ 628d613b6a7SJames Smart nvmewqeq->rsvd2 = 1; 629d613b6a7SJames Smart nvmewqeq->hba_wqidx = 0; 630d613b6a7SJames Smart nvmewqeq->context3 = &dmabuf; 631d613b6a7SJames Smart dmabuf.virt = &bpl; 632d613b6a7SJames Smart bpl.addrLow = nvmewqeq->wqe.xmit_sequence.bde.addrLow; 633d613b6a7SJames Smart bpl.addrHigh = nvmewqeq->wqe.xmit_sequence.bde.addrHigh; 634d613b6a7SJames Smart bpl.tus.f.bdeSize = rsp->rsplen; 635d613b6a7SJames Smart bpl.tus.f.bdeFlags = 0; 636d613b6a7SJames Smart bpl.tus.w = le32_to_cpu(bpl.tus.w); 637d613b6a7SJames Smart 638d613b6a7SJames Smart nvmewqeq->wqe_cmpl = lpfc_nvmet_xmt_ls_rsp_cmp; 639d613b6a7SJames Smart nvmewqeq->iocb_cmpl = NULL; 640d613b6a7SJames Smart nvmewqeq->context2 = ctxp; 641d613b6a7SJames Smart 6422b65e182SJames Smart lpfc_nvmeio_data(phba, "NVMET LS RESP: xri x%x wqidx x%x len x%x\n", 6432b65e182SJames Smart ctxp->oxid, nvmewqeq->hba_wqidx, rsp->rsplen); 6442b65e182SJames Smart 645d613b6a7SJames Smart rc = lpfc_sli4_issue_wqe(phba, LPFC_ELS_RING, nvmewqeq); 646d613b6a7SJames Smart if (rc == WQE_SUCCESS) { 647d613b6a7SJames Smart /* 648d613b6a7SJames Smart * Okay to repost buffer here, but wait till cmpl 649d613b6a7SJames Smart * before freeing ctxp and iocbq. 650d613b6a7SJames Smart */ 651d613b6a7SJames Smart lpfc_in_buf_free(phba, &nvmebuf->dbuf); 652d613b6a7SJames Smart ctxp->rqb_buffer = 0; 653d613b6a7SJames Smart atomic_inc(&nvmep->xmt_ls_rsp); 654d613b6a7SJames Smart return 0; 655d613b6a7SJames Smart } 656d613b6a7SJames Smart /* Give back resources */ 657d613b6a7SJames Smart atomic_inc(&nvmep->xmt_ls_drop); 658d613b6a7SJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR, 659d613b6a7SJames Smart "6151 LS Drop IO x%x: Issue %d\n", 660d613b6a7SJames Smart ctxp->oxid, rc); 661d613b6a7SJames Smart 662d613b6a7SJames Smart lpfc_nlp_put(nvmewqeq->context1); 663d613b6a7SJames Smart 664d613b6a7SJames Smart lpfc_in_buf_free(phba, &nvmebuf->dbuf); 665547077a4SJames Smart atomic_inc(&nvmep->xmt_ls_abort); 666d613b6a7SJames Smart lpfc_nvmet_unsol_ls_issue_abort(phba, ctxp, ctxp->sid, ctxp->oxid); 667d613b6a7SJames Smart return -ENXIO; 668d613b6a7SJames Smart } 669d613b6a7SJames Smart 670d613b6a7SJames Smart static int 671d613b6a7SJames Smart lpfc_nvmet_xmt_fcp_op(struct nvmet_fc_target_port *tgtport, 672d613b6a7SJames Smart struct nvmefc_tgt_fcp_req *rsp) 673d613b6a7SJames Smart { 674d613b6a7SJames Smart struct lpfc_nvmet_tgtport *lpfc_nvmep = tgtport->private; 675d613b6a7SJames Smart struct lpfc_nvmet_rcv_ctx *ctxp = 676d613b6a7SJames Smart container_of(rsp, struct lpfc_nvmet_rcv_ctx, ctx.fcp_req); 677d613b6a7SJames Smart struct lpfc_hba *phba = ctxp->phba; 678d613b6a7SJames Smart struct lpfc_iocbq *nvmewqeq; 679223b78eaSArnd Bergmann int rc; 6802b65e182SJames Smart 6812b65e182SJames Smart #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 6822b65e182SJames Smart if (phba->ktime_on) { 6832b65e182SJames Smart if (rsp->op == NVMET_FCOP_RSP) 6842b65e182SJames Smart ctxp->ts_nvme_status = ktime_get_ns(); 6852b65e182SJames Smart else 6862b65e182SJames Smart ctxp->ts_nvme_data = ktime_get_ns(); 6872b65e182SJames Smart } 6882b65e182SJames Smart if (phba->cpucheck_on & LPFC_CHECK_NVMET_IO) { 689223b78eaSArnd Bergmann int id = smp_processor_id(); 6902b65e182SJames Smart ctxp->cpu = id; 6912b65e182SJames Smart if (id < LPFC_CHECK_CPU_CNT) 6922b65e182SJames Smart phba->cpucheck_xmt_io[id]++; 6932b65e182SJames Smart if (rsp->hwqid != id) { 6942b65e182SJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR, 6952b65e182SJames Smart "6705 CPU Check OP: " 6962b65e182SJames Smart "cpu %d expect %d\n", 6972b65e182SJames Smart id, rsp->hwqid); 6982b65e182SJames Smart ctxp->cpu = rsp->hwqid; 6992b65e182SJames Smart } 7002b65e182SJames Smart } 7012b65e182SJames Smart #endif 702d613b6a7SJames Smart 703d613b6a7SJames Smart /* Sanity check */ 70486c67379SJames Smart if ((ctxp->flag & LPFC_NVMET_ABTS_RCV) || 70586c67379SJames Smart (ctxp->state == LPFC_NVMET_STE_ABORT)) { 706d613b6a7SJames Smart atomic_inc(&lpfc_nvmep->xmt_fcp_drop); 707d613b6a7SJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR, 70886c67379SJames Smart "6102 IO xri x%x aborted\n", 709d613b6a7SJames Smart ctxp->oxid); 710a5068b46SJames Smart rc = -ENXIO; 711d613b6a7SJames Smart goto aerr; 712d613b6a7SJames Smart } 713d613b6a7SJames Smart 714d613b6a7SJames Smart nvmewqeq = lpfc_nvmet_prep_fcp_wqe(phba, ctxp); 715d613b6a7SJames Smart if (nvmewqeq == NULL) { 716d613b6a7SJames Smart atomic_inc(&lpfc_nvmep->xmt_fcp_drop); 717d613b6a7SJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR, 718d613b6a7SJames Smart "6152 FCP Drop IO x%x: Prep\n", 719d613b6a7SJames Smart ctxp->oxid); 720a5068b46SJames Smart rc = -ENXIO; 721d613b6a7SJames Smart goto aerr; 722d613b6a7SJames Smart } 723d613b6a7SJames Smart 724d613b6a7SJames Smart nvmewqeq->wqe_cmpl = lpfc_nvmet_xmt_fcp_op_cmp; 725d613b6a7SJames Smart nvmewqeq->iocb_cmpl = NULL; 726d613b6a7SJames Smart nvmewqeq->context2 = ctxp; 727d613b6a7SJames Smart nvmewqeq->iocb_flag |= LPFC_IO_NVMET; 728d613b6a7SJames Smart ctxp->wqeq->hba_wqidx = rsp->hwqid; 729d613b6a7SJames Smart 7302b65e182SJames Smart lpfc_nvmeio_data(phba, "NVMET FCP CMND: xri x%x op x%x len x%x\n", 7312b65e182SJames Smart ctxp->oxid, rsp->op, rsp->rsplen); 7322b65e182SJames Smart 73361f3d4bfSJames Smart ctxp->flag |= LPFC_NVMET_IO_INP; 734d613b6a7SJames Smart rc = lpfc_sli4_issue_wqe(phba, LPFC_FCP_RING, nvmewqeq); 735d613b6a7SJames Smart if (rc == WQE_SUCCESS) { 7362b65e182SJames Smart #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 7372b65e182SJames Smart if (!phba->ktime_on) 7382b65e182SJames Smart return 0; 7392b65e182SJames Smart if (rsp->op == NVMET_FCOP_RSP) 7402b65e182SJames Smart ctxp->ts_status_wqput = ktime_get_ns(); 7412b65e182SJames Smart else 7422b65e182SJames Smart ctxp->ts_data_wqput = ktime_get_ns(); 7432b65e182SJames Smart #endif 744d613b6a7SJames Smart return 0; 745d613b6a7SJames Smart } 746d613b6a7SJames Smart 747d613b6a7SJames Smart /* Give back resources */ 748d613b6a7SJames Smart atomic_inc(&lpfc_nvmep->xmt_fcp_drop); 749d613b6a7SJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR, 750d613b6a7SJames Smart "6153 FCP Drop IO x%x: Issue: %d\n", 751d613b6a7SJames Smart ctxp->oxid, rc); 752d613b6a7SJames Smart 753d613b6a7SJames Smart ctxp->wqeq->hba_wqidx = 0; 754d613b6a7SJames Smart nvmewqeq->context2 = NULL; 755d613b6a7SJames Smart nvmewqeq->context3 = NULL; 756a5068b46SJames Smart rc = -EBUSY; 757d613b6a7SJames Smart aerr: 758a5068b46SJames Smart return rc; 759d613b6a7SJames Smart } 760d613b6a7SJames Smart 761d613b6a7SJames Smart static void 762d613b6a7SJames Smart lpfc_nvmet_targetport_delete(struct nvmet_fc_target_port *targetport) 763d613b6a7SJames Smart { 764d613b6a7SJames Smart struct lpfc_nvmet_tgtport *tport = targetport->private; 765d613b6a7SJames Smart 766d613b6a7SJames Smart /* release any threads waiting for the unreg to complete */ 767d613b6a7SJames Smart complete(&tport->tport_unreg_done); 768d613b6a7SJames Smart } 769d613b6a7SJames Smart 77019b58d94SJames Smart static void 771a97ec51bSJames Smart lpfc_nvmet_xmt_fcp_abort(struct nvmet_fc_target_port *tgtport, 772a97ec51bSJames Smart struct nvmefc_tgt_fcp_req *req) 773a97ec51bSJames Smart { 774a97ec51bSJames Smart struct lpfc_nvmet_tgtport *lpfc_nvmep = tgtport->private; 775a97ec51bSJames Smart struct lpfc_nvmet_rcv_ctx *ctxp = 776a97ec51bSJames Smart container_of(req, struct lpfc_nvmet_rcv_ctx, ctx.fcp_req); 777a97ec51bSJames Smart struct lpfc_hba *phba = ctxp->phba; 77886c67379SJames Smart unsigned long flags; 779a97ec51bSJames Smart 780a97ec51bSJames Smart lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS, 781ce1b591cSJames Smart "6103 NVMET Abort op: oxri x%x flg x%x ste %d\n", 782ce1b591cSJames Smart ctxp->oxid, ctxp->flag, ctxp->state); 783a97ec51bSJames Smart 784ce1b591cSJames Smart lpfc_nvmeio_data(phba, "NVMET FCP ABRT: xri x%x flg x%x ste x%x\n", 785ce1b591cSJames Smart ctxp->oxid, ctxp->flag, ctxp->state); 786a97ec51bSJames Smart 787a97ec51bSJames Smart atomic_inc(&lpfc_nvmep->xmt_fcp_abort); 788ce1b591cSJames Smart 78986c67379SJames Smart spin_lock_irqsave(&ctxp->ctxlock, flags); 79086c67379SJames Smart 79186c67379SJames Smart /* Since iaab/iaar are NOT set, we need to check 79286c67379SJames Smart * if the firmware is in process of aborting IO 79386c67379SJames Smart */ 79486c67379SJames Smart if (ctxp->flag & LPFC_NVMET_XBUSY) { 79586c67379SJames Smart spin_unlock_irqrestore(&ctxp->ctxlock, flags); 79686c67379SJames Smart return; 79786c67379SJames Smart } 798a97ec51bSJames Smart ctxp->flag |= LPFC_NVMET_ABORT_OP; 799ce1b591cSJames Smart 800ce1b591cSJames Smart /* An state of LPFC_NVMET_STE_RCV means we have just received 801ce1b591cSJames Smart * the NVME command and have not started processing it. 802ce1b591cSJames Smart * (by issuing any IO WQEs on this exchange yet) 803ce1b591cSJames Smart */ 804ce1b591cSJames Smart if (ctxp->state == LPFC_NVMET_STE_RCV) 805ce1b591cSJames Smart lpfc_nvmet_unsol_fcp_issue_abort(phba, ctxp, ctxp->sid, 806a97ec51bSJames Smart ctxp->oxid); 807a97ec51bSJames Smart else 808ce1b591cSJames Smart lpfc_nvmet_sol_fcp_issue_abort(phba, ctxp, ctxp->sid, 809a97ec51bSJames Smart ctxp->oxid); 81086c67379SJames Smart spin_unlock_irqrestore(&ctxp->ctxlock, flags); 811a97ec51bSJames Smart } 812a97ec51bSJames Smart 813a97ec51bSJames Smart static void 81419b58d94SJames Smart lpfc_nvmet_xmt_fcp_release(struct nvmet_fc_target_port *tgtport, 81519b58d94SJames Smart struct nvmefc_tgt_fcp_req *rsp) 81619b58d94SJames Smart { 817547077a4SJames Smart struct lpfc_nvmet_tgtport *lpfc_nvmep = tgtport->private; 81819b58d94SJames Smart struct lpfc_nvmet_rcv_ctx *ctxp = 81919b58d94SJames Smart container_of(rsp, struct lpfc_nvmet_rcv_ctx, ctx.fcp_req); 82019b58d94SJames Smart struct lpfc_hba *phba = ctxp->phba; 82119b58d94SJames Smart unsigned long flags; 82219b58d94SJames Smart bool aborting = false; 82319b58d94SJames Smart 824ce1b591cSJames Smart if (ctxp->state != LPFC_NVMET_STE_DONE && 825ce1b591cSJames Smart ctxp->state != LPFC_NVMET_STE_ABORT) { 826ce1b591cSJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR, 827ce1b591cSJames Smart "6413 NVMET release bad state %d %d oxid x%x\n", 828ce1b591cSJames Smart ctxp->state, ctxp->entry_cnt, ctxp->oxid); 829ce1b591cSJames Smart } 830ce1b591cSJames Smart 83119b58d94SJames Smart spin_lock_irqsave(&ctxp->ctxlock, flags); 83286c67379SJames Smart if ((ctxp->flag & LPFC_NVMET_ABORT_OP) || 83386c67379SJames Smart (ctxp->flag & LPFC_NVMET_XBUSY)) { 83419b58d94SJames Smart aborting = true; 83586c67379SJames Smart /* let the abort path do the real release */ 83686c67379SJames Smart lpfc_nvmet_defer_release(phba, ctxp); 83719b58d94SJames Smart } 83819b58d94SJames Smart spin_unlock_irqrestore(&ctxp->ctxlock, flags); 83919b58d94SJames Smart 8409094367aSArnd Bergmann lpfc_nvmeio_data(phba, "NVMET FCP FREE: xri x%x ste %d abt %d\n", ctxp->oxid, 8419094367aSArnd Bergmann ctxp->state, aborting); 84219b58d94SJames Smart 843547077a4SJames Smart atomic_inc(&lpfc_nvmep->xmt_fcp_release); 844547077a4SJames Smart 84586c67379SJames Smart if (aborting) 84686c67379SJames Smart return; 84786c67379SJames Smart 8486c621a22SJames Smart lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf); 84919b58d94SJames Smart } 85019b58d94SJames Smart 851d613b6a7SJames Smart static struct nvmet_fc_target_template lpfc_tgttemplate = { 852d613b6a7SJames Smart .targetport_delete = lpfc_nvmet_targetport_delete, 853d613b6a7SJames Smart .xmt_ls_rsp = lpfc_nvmet_xmt_ls_rsp, 854d613b6a7SJames Smart .fcp_op = lpfc_nvmet_xmt_fcp_op, 855a97ec51bSJames Smart .fcp_abort = lpfc_nvmet_xmt_fcp_abort, 85619b58d94SJames Smart .fcp_req_release = lpfc_nvmet_xmt_fcp_release, 857d613b6a7SJames Smart 858d613b6a7SJames Smart .max_hw_queues = 1, 859d613b6a7SJames Smart .max_sgl_segments = LPFC_NVMET_DEFAULT_SEGS, 860d613b6a7SJames Smart .max_dif_sgl_segments = LPFC_NVMET_DEFAULT_SEGS, 861d613b6a7SJames Smart .dma_boundary = 0xFFFFFFFF, 862d613b6a7SJames Smart 863d613b6a7SJames Smart /* optional features */ 864d613b6a7SJames Smart .target_features = 0, 865d613b6a7SJames Smart /* sizes of additional private data for data structures */ 866d613b6a7SJames Smart .target_priv_sz = sizeof(struct lpfc_nvmet_tgtport), 867d613b6a7SJames Smart }; 868d613b6a7SJames Smart 86939aa23f9SColin Ian King static void 87066d7ce93SDick Kennedy __lpfc_nvmet_clean_io_for_cpu(struct lpfc_hba *phba, 87166d7ce93SDick Kennedy struct lpfc_nvmet_ctx_info *infop) 8726c621a22SJames Smart { 8736c621a22SJames Smart struct lpfc_nvmet_ctxbuf *ctx_buf, *next_ctx_buf; 8746c621a22SJames Smart unsigned long flags; 8756c621a22SJames Smart 87666d7ce93SDick Kennedy spin_lock_irqsave(&infop->nvmet_ctx_list_lock, flags); 877966bb5b7SJames Smart list_for_each_entry_safe(ctx_buf, next_ctx_buf, 87866d7ce93SDick Kennedy &infop->nvmet_ctx_list, list) { 879c4031db7SDan Carpenter spin_lock(&phba->sli4_hba.abts_nvme_buf_list_lock); 8806c621a22SJames Smart list_del_init(&ctx_buf->list); 881c4031db7SDan Carpenter spin_unlock(&phba->sli4_hba.abts_nvme_buf_list_lock); 88266d7ce93SDick Kennedy 88366d7ce93SDick Kennedy __lpfc_clear_active_sglq(phba, ctx_buf->sglq->sli4_lxritag); 8846c621a22SJames Smart ctx_buf->sglq->state = SGL_FREED; 8856c621a22SJames Smart ctx_buf->sglq->ndlp = NULL; 8866c621a22SJames Smart 887c4031db7SDan Carpenter spin_lock(&phba->sli4_hba.sgl_list_lock); 8886c621a22SJames Smart list_add_tail(&ctx_buf->sglq->list, 8896c621a22SJames Smart &phba->sli4_hba.lpfc_nvmet_sgl_list); 890c4031db7SDan Carpenter spin_unlock(&phba->sli4_hba.sgl_list_lock); 8916c621a22SJames Smart 8926c621a22SJames Smart lpfc_sli_release_iocbq(phba, ctx_buf->iocbq); 8936c621a22SJames Smart kfree(ctx_buf->context); 8946c621a22SJames Smart } 89566d7ce93SDick Kennedy spin_unlock_irqrestore(&infop->nvmet_ctx_list_lock, flags); 896966bb5b7SJames Smart } 89766d7ce93SDick Kennedy 89866d7ce93SDick Kennedy static void 89966d7ce93SDick Kennedy lpfc_nvmet_cleanup_io_context(struct lpfc_hba *phba) 90066d7ce93SDick Kennedy { 90166d7ce93SDick Kennedy struct lpfc_nvmet_ctx_info *infop; 90266d7ce93SDick Kennedy int i, j; 90366d7ce93SDick Kennedy 90466d7ce93SDick Kennedy /* The first context list, MRQ 0 CPU 0 */ 90566d7ce93SDick Kennedy infop = phba->sli4_hba.nvmet_ctx_info; 90666d7ce93SDick Kennedy if (!infop) 90766d7ce93SDick Kennedy return; 90866d7ce93SDick Kennedy 90966d7ce93SDick Kennedy /* Cycle the the entire CPU context list for every MRQ */ 91066d7ce93SDick Kennedy for (i = 0; i < phba->cfg_nvmet_mrq; i++) { 91166d7ce93SDick Kennedy for (j = 0; j < phba->sli4_hba.num_present_cpu; j++) { 91266d7ce93SDick Kennedy __lpfc_nvmet_clean_io_for_cpu(phba, infop); 91366d7ce93SDick Kennedy infop++; /* next */ 91466d7ce93SDick Kennedy } 91566d7ce93SDick Kennedy } 91666d7ce93SDick Kennedy kfree(phba->sli4_hba.nvmet_ctx_info); 91766d7ce93SDick Kennedy phba->sli4_hba.nvmet_ctx_info = NULL; 9186c621a22SJames Smart } 9196c621a22SJames Smart 92039aa23f9SColin Ian King static int 9216c621a22SJames Smart lpfc_nvmet_setup_io_context(struct lpfc_hba *phba) 9226c621a22SJames Smart { 9236c621a22SJames Smart struct lpfc_nvmet_ctxbuf *ctx_buf; 9246c621a22SJames Smart struct lpfc_iocbq *nvmewqe; 9256c621a22SJames Smart union lpfc_wqe128 *wqe; 92666d7ce93SDick Kennedy struct lpfc_nvmet_ctx_info *last_infop; 92766d7ce93SDick Kennedy struct lpfc_nvmet_ctx_info *infop; 92866d7ce93SDick Kennedy int i, j, idx; 9296c621a22SJames Smart 9306c621a22SJames Smart lpfc_printf_log(phba, KERN_INFO, LOG_NVME, 9316c621a22SJames Smart "6403 Allocate NVMET resources for %d XRIs\n", 9326c621a22SJames Smart phba->sli4_hba.nvmet_xri_cnt); 9336c621a22SJames Smart 93466d7ce93SDick Kennedy phba->sli4_hba.nvmet_ctx_info = kcalloc( 93566d7ce93SDick Kennedy phba->sli4_hba.num_present_cpu * phba->cfg_nvmet_mrq, 93666d7ce93SDick Kennedy sizeof(struct lpfc_nvmet_ctx_info), GFP_KERNEL); 93766d7ce93SDick Kennedy if (!phba->sli4_hba.nvmet_ctx_info) { 93866d7ce93SDick Kennedy lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 93966d7ce93SDick Kennedy "6419 Failed allocate memory for " 94066d7ce93SDick Kennedy "nvmet context lists\n"); 94166d7ce93SDick Kennedy return -ENOMEM; 94266d7ce93SDick Kennedy } 94366d7ce93SDick Kennedy 94466d7ce93SDick Kennedy /* 94566d7ce93SDick Kennedy * Assuming X CPUs in the system, and Y MRQs, allocate some 94666d7ce93SDick Kennedy * lpfc_nvmet_ctx_info structures as follows: 94766d7ce93SDick Kennedy * 94866d7ce93SDick Kennedy * cpu0/mrq0 cpu1/mrq0 ... cpuX/mrq0 94966d7ce93SDick Kennedy * cpu0/mrq1 cpu1/mrq1 ... cpuX/mrq1 95066d7ce93SDick Kennedy * ... 95166d7ce93SDick Kennedy * cpuX/mrqY cpuX/mrqY ... cpuX/mrqY 95266d7ce93SDick Kennedy * 95366d7ce93SDick Kennedy * Each line represents a MRQ "silo" containing an entry for 95466d7ce93SDick Kennedy * every CPU. 95566d7ce93SDick Kennedy * 95666d7ce93SDick Kennedy * MRQ X is initially assumed to be associated with CPU X, thus 95766d7ce93SDick Kennedy * contexts are initially distributed across all MRQs using 95866d7ce93SDick Kennedy * the MRQ index (N) as follows cpuN/mrqN. When contexts are 95966d7ce93SDick Kennedy * freed, the are freed to the MRQ silo based on the CPU number 96066d7ce93SDick Kennedy * of the IO completion. Thus a context that was allocated for MRQ A 96166d7ce93SDick Kennedy * whose IO completed on CPU B will be freed to cpuB/mrqA. 96266d7ce93SDick Kennedy */ 96366d7ce93SDick Kennedy infop = phba->sli4_hba.nvmet_ctx_info; 96466d7ce93SDick Kennedy for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) { 96566d7ce93SDick Kennedy for (j = 0; j < phba->cfg_nvmet_mrq; j++) { 96666d7ce93SDick Kennedy INIT_LIST_HEAD(&infop->nvmet_ctx_list); 96766d7ce93SDick Kennedy spin_lock_init(&infop->nvmet_ctx_list_lock); 96866d7ce93SDick Kennedy infop->nvmet_ctx_list_cnt = 0; 96966d7ce93SDick Kennedy infop++; 97066d7ce93SDick Kennedy } 97166d7ce93SDick Kennedy } 97266d7ce93SDick Kennedy 97366d7ce93SDick Kennedy /* 97466d7ce93SDick Kennedy * Setup the next CPU context info ptr for each MRQ. 97566d7ce93SDick Kennedy * MRQ 0 will cycle thru CPUs 0 - X separately from 97666d7ce93SDick Kennedy * MRQ 1 cycling thru CPUs 0 - X, and so on. 97766d7ce93SDick Kennedy */ 97866d7ce93SDick Kennedy for (j = 0; j < phba->cfg_nvmet_mrq; j++) { 97966d7ce93SDick Kennedy last_infop = lpfc_get_ctx_list(phba, 0, j); 98066d7ce93SDick Kennedy for (i = phba->sli4_hba.num_present_cpu - 1; i >= 0; i--) { 98166d7ce93SDick Kennedy infop = lpfc_get_ctx_list(phba, i, j); 98266d7ce93SDick Kennedy infop->nvmet_ctx_next_cpu = last_infop; 98366d7ce93SDick Kennedy last_infop = infop; 98466d7ce93SDick Kennedy } 98566d7ce93SDick Kennedy } 98666d7ce93SDick Kennedy 9876c621a22SJames Smart /* For all nvmet xris, allocate resources needed to process a 9886c621a22SJames Smart * received command on a per xri basis. 9896c621a22SJames Smart */ 99066d7ce93SDick Kennedy idx = 0; 9916c621a22SJames Smart for (i = 0; i < phba->sli4_hba.nvmet_xri_cnt; i++) { 9926c621a22SJames Smart ctx_buf = kzalloc(sizeof(*ctx_buf), GFP_KERNEL); 9936c621a22SJames Smart if (!ctx_buf) { 9946c621a22SJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME, 9956c621a22SJames Smart "6404 Ran out of memory for NVMET\n"); 9966c621a22SJames Smart return -ENOMEM; 9976c621a22SJames Smart } 9986c621a22SJames Smart 9996c621a22SJames Smart ctx_buf->context = kzalloc(sizeof(*ctx_buf->context), 10006c621a22SJames Smart GFP_KERNEL); 10016c621a22SJames Smart if (!ctx_buf->context) { 10026c621a22SJames Smart kfree(ctx_buf); 10036c621a22SJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME, 10046c621a22SJames Smart "6405 Ran out of NVMET " 10056c621a22SJames Smart "context memory\n"); 10066c621a22SJames Smart return -ENOMEM; 10076c621a22SJames Smart } 10086c621a22SJames Smart ctx_buf->context->ctxbuf = ctx_buf; 1009ce1b591cSJames Smart ctx_buf->context->state = LPFC_NVMET_STE_FREE; 10106c621a22SJames Smart 10116c621a22SJames Smart ctx_buf->iocbq = lpfc_sli_get_iocbq(phba); 10126c621a22SJames Smart if (!ctx_buf->iocbq) { 10136c621a22SJames Smart kfree(ctx_buf->context); 10146c621a22SJames Smart kfree(ctx_buf); 10156c621a22SJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME, 10166c621a22SJames Smart "6406 Ran out of NVMET iocb/WQEs\n"); 10176c621a22SJames Smart return -ENOMEM; 10186c621a22SJames Smart } 10196c621a22SJames Smart ctx_buf->iocbq->iocb_flag = LPFC_IO_NVMET; 10206c621a22SJames Smart nvmewqe = ctx_buf->iocbq; 10216c621a22SJames Smart wqe = (union lpfc_wqe128 *)&nvmewqe->wqe; 10226c621a22SJames Smart /* Initialize WQE */ 10236c621a22SJames Smart memset(wqe, 0, sizeof(union lpfc_wqe)); 10246c621a22SJames Smart /* Word 7 */ 10256c621a22SJames Smart bf_set(wqe_ct, &wqe->generic.wqe_com, SLI4_CT_RPI); 10266c621a22SJames Smart bf_set(wqe_class, &wqe->generic.wqe_com, CLASS3); 10276c621a22SJames Smart /* Word 10 */ 10286c621a22SJames Smart bf_set(wqe_nvme, &wqe->fcp_tsend.wqe_com, 1); 10296c621a22SJames Smart bf_set(wqe_ebde_cnt, &wqe->generic.wqe_com, 0); 10306c621a22SJames Smart bf_set(wqe_qosd, &wqe->generic.wqe_com, 0); 10316c621a22SJames Smart 10326c621a22SJames Smart ctx_buf->iocbq->context1 = NULL; 10336c621a22SJames Smart spin_lock(&phba->sli4_hba.sgl_list_lock); 10346c621a22SJames Smart ctx_buf->sglq = __lpfc_sli_get_nvmet_sglq(phba, ctx_buf->iocbq); 10356c621a22SJames Smart spin_unlock(&phba->sli4_hba.sgl_list_lock); 10366c621a22SJames Smart if (!ctx_buf->sglq) { 10376c621a22SJames Smart lpfc_sli_release_iocbq(phba, ctx_buf->iocbq); 10386c621a22SJames Smart kfree(ctx_buf->context); 10396c621a22SJames Smart kfree(ctx_buf); 10406c621a22SJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME, 10416c621a22SJames Smart "6407 Ran out of NVMET XRIs\n"); 10426c621a22SJames Smart return -ENOMEM; 10436c621a22SJames Smart } 104466d7ce93SDick Kennedy 104566d7ce93SDick Kennedy /* 104666d7ce93SDick Kennedy * Add ctx to MRQidx context list. Our initial assumption 104766d7ce93SDick Kennedy * is MRQidx will be associated with CPUidx. This association 104866d7ce93SDick Kennedy * can change on the fly. 104966d7ce93SDick Kennedy */ 105066d7ce93SDick Kennedy infop = lpfc_get_ctx_list(phba, idx, idx); 105166d7ce93SDick Kennedy spin_lock(&infop->nvmet_ctx_list_lock); 105266d7ce93SDick Kennedy list_add_tail(&ctx_buf->list, &infop->nvmet_ctx_list); 105366d7ce93SDick Kennedy infop->nvmet_ctx_list_cnt++; 105466d7ce93SDick Kennedy spin_unlock(&infop->nvmet_ctx_list_lock); 105566d7ce93SDick Kennedy 105666d7ce93SDick Kennedy /* Spread ctx structures evenly across all MRQs */ 105766d7ce93SDick Kennedy idx++; 105866d7ce93SDick Kennedy if (idx >= phba->cfg_nvmet_mrq) 105966d7ce93SDick Kennedy idx = 0; 10606c621a22SJames Smart } 106166d7ce93SDick Kennedy 106266d7ce93SDick Kennedy infop = phba->sli4_hba.nvmet_ctx_info; 106366d7ce93SDick Kennedy for (j = 0; j < phba->cfg_nvmet_mrq; j++) { 106466d7ce93SDick Kennedy for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) { 106566d7ce93SDick Kennedy lpfc_printf_log(phba, KERN_INFO, LOG_NVME | LOG_INIT, 106666d7ce93SDick Kennedy "6408 TOTAL NVMET ctx for CPU %d " 106766d7ce93SDick Kennedy "MRQ %d: cnt %d nextcpu %p\n", 106866d7ce93SDick Kennedy i, j, infop->nvmet_ctx_list_cnt, 106966d7ce93SDick Kennedy infop->nvmet_ctx_next_cpu); 107066d7ce93SDick Kennedy infop++; 107166d7ce93SDick Kennedy } 107266d7ce93SDick Kennedy } 10736c621a22SJames Smart return 0; 10746c621a22SJames Smart } 10756c621a22SJames Smart 1076d613b6a7SJames Smart int 1077d613b6a7SJames Smart lpfc_nvmet_create_targetport(struct lpfc_hba *phba) 1078d613b6a7SJames Smart { 1079d613b6a7SJames Smart struct lpfc_vport *vport = phba->pport; 1080d613b6a7SJames Smart struct lpfc_nvmet_tgtport *tgtp; 1081d613b6a7SJames Smart struct nvmet_fc_port_info pinfo; 10826c621a22SJames Smart int error; 1083d613b6a7SJames Smart 1084d613b6a7SJames Smart if (phba->targetport) 1085d613b6a7SJames Smart return 0; 1086d613b6a7SJames Smart 10876c621a22SJames Smart error = lpfc_nvmet_setup_io_context(phba); 10886c621a22SJames Smart if (error) 10896c621a22SJames Smart return error; 10906c621a22SJames Smart 1091d613b6a7SJames Smart memset(&pinfo, 0, sizeof(struct nvmet_fc_port_info)); 1092d613b6a7SJames Smart pinfo.node_name = wwn_to_u64(vport->fc_nodename.u.wwn); 1093d613b6a7SJames Smart pinfo.port_name = wwn_to_u64(vport->fc_portname.u.wwn); 1094d613b6a7SJames Smart pinfo.port_id = vport->fc_myDID; 1095d613b6a7SJames Smart 10964d4c4a4aSJames Smart /* Limit to LPFC_MAX_NVME_SEG_CNT. 10974d4c4a4aSJames Smart * For now need + 1 to get around NVME transport logic. 10984d4c4a4aSJames Smart */ 10994d4c4a4aSJames Smart if (phba->cfg_sg_seg_cnt > LPFC_MAX_NVME_SEG_CNT) { 11004d4c4a4aSJames Smart lpfc_printf_log(phba, KERN_INFO, LOG_NVME | LOG_INIT, 11014d4c4a4aSJames Smart "6400 Reducing sg segment cnt to %d\n", 11024d4c4a4aSJames Smart LPFC_MAX_NVME_SEG_CNT); 11034d4c4a4aSJames Smart phba->cfg_nvme_seg_cnt = LPFC_MAX_NVME_SEG_CNT; 11044d4c4a4aSJames Smart } else { 11054d4c4a4aSJames Smart phba->cfg_nvme_seg_cnt = phba->cfg_sg_seg_cnt; 11064d4c4a4aSJames Smart } 11074d4c4a4aSJames Smart lpfc_tgttemplate.max_sgl_segments = phba->cfg_nvme_seg_cnt + 1; 1108d613b6a7SJames Smart lpfc_tgttemplate.max_hw_queues = phba->cfg_nvme_io_channel; 1109d613b6a7SJames Smart lpfc_tgttemplate.target_features = NVMET_FCTGTFEAT_READDATA_RSP | 111039498faeSJames Smart NVMET_FCTGTFEAT_CMD_IN_ISR | 111139498faeSJames Smart NVMET_FCTGTFEAT_OPDONE_IN_ISR; 1112d613b6a7SJames Smart 11137d708033SJames Smart #if (IS_ENABLED(CONFIG_NVME_TARGET_FC)) 1114d613b6a7SJames Smart error = nvmet_fc_register_targetport(&pinfo, &lpfc_tgttemplate, 1115d613b6a7SJames Smart &phba->pcidev->dev, 1116d613b6a7SJames Smart &phba->targetport); 1117166d7211SJames Smart #else 11186c621a22SJames Smart error = -ENOENT; 1119166d7211SJames Smart #endif 1120d613b6a7SJames Smart if (error) { 1121d613b6a7SJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_DISC, 1122d613b6a7SJames Smart "6025 Cannot register NVME targetport " 1123d613b6a7SJames Smart "x%x\n", error); 1124d613b6a7SJames Smart phba->targetport = NULL; 11256c621a22SJames Smart 11266c621a22SJames Smart lpfc_nvmet_cleanup_io_context(phba); 11276c621a22SJames Smart 1128d613b6a7SJames Smart } else { 1129d613b6a7SJames Smart tgtp = (struct lpfc_nvmet_tgtport *) 1130d613b6a7SJames Smart phba->targetport->private; 1131d613b6a7SJames Smart tgtp->phba = phba; 1132d613b6a7SJames Smart 1133d613b6a7SJames Smart lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC, 1134d613b6a7SJames Smart "6026 Registered NVME " 1135d613b6a7SJames Smart "targetport: %p, private %p " 1136d613b6a7SJames Smart "portnm %llx nodenm %llx\n", 1137d613b6a7SJames Smart phba->targetport, tgtp, 1138d613b6a7SJames Smart pinfo.port_name, pinfo.node_name); 1139d613b6a7SJames Smart 1140d613b6a7SJames Smart atomic_set(&tgtp->rcv_ls_req_in, 0); 1141d613b6a7SJames Smart atomic_set(&tgtp->rcv_ls_req_out, 0); 1142d613b6a7SJames Smart atomic_set(&tgtp->rcv_ls_req_drop, 0); 1143d613b6a7SJames Smart atomic_set(&tgtp->xmt_ls_abort, 0); 1144547077a4SJames Smart atomic_set(&tgtp->xmt_ls_abort_cmpl, 0); 1145d613b6a7SJames Smart atomic_set(&tgtp->xmt_ls_rsp, 0); 1146d613b6a7SJames Smart atomic_set(&tgtp->xmt_ls_drop, 0); 1147d613b6a7SJames Smart atomic_set(&tgtp->xmt_ls_rsp_error, 0); 1148d613b6a7SJames Smart atomic_set(&tgtp->xmt_ls_rsp_cmpl, 0); 1149d613b6a7SJames Smart atomic_set(&tgtp->rcv_fcp_cmd_in, 0); 1150d613b6a7SJames Smart atomic_set(&tgtp->rcv_fcp_cmd_out, 0); 1151d613b6a7SJames Smart atomic_set(&tgtp->rcv_fcp_cmd_drop, 0); 1152d613b6a7SJames Smart atomic_set(&tgtp->xmt_fcp_drop, 0); 1153d613b6a7SJames Smart atomic_set(&tgtp->xmt_fcp_read_rsp, 0); 1154d613b6a7SJames Smart atomic_set(&tgtp->xmt_fcp_read, 0); 1155d613b6a7SJames Smart atomic_set(&tgtp->xmt_fcp_write, 0); 1156d613b6a7SJames Smart atomic_set(&tgtp->xmt_fcp_rsp, 0); 1157547077a4SJames Smart atomic_set(&tgtp->xmt_fcp_release, 0); 1158d613b6a7SJames Smart atomic_set(&tgtp->xmt_fcp_rsp_cmpl, 0); 1159d613b6a7SJames Smart atomic_set(&tgtp->xmt_fcp_rsp_error, 0); 1160d613b6a7SJames Smart atomic_set(&tgtp->xmt_fcp_rsp_drop, 0); 1161547077a4SJames Smart atomic_set(&tgtp->xmt_fcp_abort, 0); 1162547077a4SJames Smart atomic_set(&tgtp->xmt_fcp_abort_cmpl, 0); 1163547077a4SJames Smart atomic_set(&tgtp->xmt_abort_unsol, 0); 1164547077a4SJames Smart atomic_set(&tgtp->xmt_abort_sol, 0); 1165d613b6a7SJames Smart atomic_set(&tgtp->xmt_abort_rsp, 0); 1166d613b6a7SJames Smart atomic_set(&tgtp->xmt_abort_rsp_error, 0); 1167d613b6a7SJames Smart } 1168d613b6a7SJames Smart return error; 1169d613b6a7SJames Smart } 1170d613b6a7SJames Smart 1171d613b6a7SJames Smart int 1172d613b6a7SJames Smart lpfc_nvmet_update_targetport(struct lpfc_hba *phba) 1173d613b6a7SJames Smart { 1174d613b6a7SJames Smart struct lpfc_vport *vport = phba->pport; 1175d613b6a7SJames Smart 1176d613b6a7SJames Smart if (!phba->targetport) 1177d613b6a7SJames Smart return 0; 1178d613b6a7SJames Smart 1179d613b6a7SJames Smart lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME, 1180d613b6a7SJames Smart "6007 Update NVMET port %p did x%x\n", 1181d613b6a7SJames Smart phba->targetport, vport->fc_myDID); 1182d613b6a7SJames Smart 1183d613b6a7SJames Smart phba->targetport->port_id = vport->fc_myDID; 1184d613b6a7SJames Smart return 0; 1185d613b6a7SJames Smart } 1186d613b6a7SJames Smart 1187318083adSJames Smart /** 1188318083adSJames Smart * lpfc_sli4_nvmet_xri_aborted - Fast-path process of nvmet xri abort 1189318083adSJames Smart * @phba: pointer to lpfc hba data structure. 1190318083adSJames Smart * @axri: pointer to the nvmet xri abort wcqe structure. 1191318083adSJames Smart * 1192318083adSJames Smart * This routine is invoked by the worker thread to process a SLI4 fast-path 1193318083adSJames Smart * NVMET aborted xri. 1194318083adSJames Smart **/ 1195318083adSJames Smart void 1196318083adSJames Smart lpfc_sli4_nvmet_xri_aborted(struct lpfc_hba *phba, 1197318083adSJames Smart struct sli4_wcqe_xri_aborted *axri) 1198318083adSJames Smart { 119986c67379SJames Smart uint16_t xri = bf_get(lpfc_wcqe_xa_xri, axri); 120086c67379SJames Smart uint16_t rxid = bf_get(lpfc_wcqe_xa_remote_xid, axri); 120186c67379SJames Smart struct lpfc_nvmet_rcv_ctx *ctxp, *next_ctxp; 120286c67379SJames Smart struct lpfc_nodelist *ndlp; 120386c67379SJames Smart unsigned long iflag = 0; 120486c67379SJames Smart int rrq_empty = 0; 120586c67379SJames Smart bool released = false; 120686c67379SJames Smart 120786c67379SJames Smart lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS, 120886c67379SJames Smart "6317 XB aborted xri x%x rxid x%x\n", xri, rxid); 120986c67379SJames Smart 121086c67379SJames Smart if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) 121186c67379SJames Smart return; 121286c67379SJames Smart spin_lock_irqsave(&phba->hbalock, iflag); 121386c67379SJames Smart spin_lock(&phba->sli4_hba.abts_nvme_buf_list_lock); 121486c67379SJames Smart list_for_each_entry_safe(ctxp, next_ctxp, 121586c67379SJames Smart &phba->sli4_hba.lpfc_abts_nvmet_ctx_list, 121686c67379SJames Smart list) { 12176c621a22SJames Smart if (ctxp->ctxbuf->sglq->sli4_xritag != xri) 121886c67379SJames Smart continue; 121986c67379SJames Smart 122086c67379SJames Smart /* Check if we already received a free context call 122186c67379SJames Smart * and we have completed processing an abort situation. 122286c67379SJames Smart */ 122386c67379SJames Smart if (ctxp->flag & LPFC_NVMET_CTX_RLS && 122486c67379SJames Smart !(ctxp->flag & LPFC_NVMET_ABORT_OP)) { 122586c67379SJames Smart list_del(&ctxp->list); 122686c67379SJames Smart released = true; 122786c67379SJames Smart } 122886c67379SJames Smart ctxp->flag &= ~LPFC_NVMET_XBUSY; 122986c67379SJames Smart spin_unlock(&phba->sli4_hba.abts_nvme_buf_list_lock); 123086c67379SJames Smart 123186c67379SJames Smart rrq_empty = list_empty(&phba->active_rrq_list); 123286c67379SJames Smart spin_unlock_irqrestore(&phba->hbalock, iflag); 123386c67379SJames Smart ndlp = lpfc_findnode_did(phba->pport, ctxp->sid); 123486c67379SJames Smart if (ndlp && NLP_CHK_NODE_ACT(ndlp) && 123586c67379SJames Smart (ndlp->nlp_state == NLP_STE_UNMAPPED_NODE || 123686c67379SJames Smart ndlp->nlp_state == NLP_STE_MAPPED_NODE)) { 123786c67379SJames Smart lpfc_set_rrq_active(phba, ndlp, 12386c621a22SJames Smart ctxp->ctxbuf->sglq->sli4_lxritag, 123986c67379SJames Smart rxid, 1); 124086c67379SJames Smart lpfc_sli4_abts_err_handler(phba, ndlp, axri); 124186c67379SJames Smart } 124286c67379SJames Smart 124386c67379SJames Smart lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS, 1244ce1b591cSJames Smart "6318 XB aborted oxid %x flg x%x (%x)\n", 124586c67379SJames Smart ctxp->oxid, ctxp->flag, released); 124686c67379SJames Smart if (released) 12476c621a22SJames Smart lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf); 12486c621a22SJames Smart 124986c67379SJames Smart if (rrq_empty) 125086c67379SJames Smart lpfc_worker_wake_up(phba); 125186c67379SJames Smart return; 125286c67379SJames Smart } 125386c67379SJames Smart spin_unlock(&phba->sli4_hba.abts_nvme_buf_list_lock); 125486c67379SJames Smart spin_unlock_irqrestore(&phba->hbalock, iflag); 125586c67379SJames Smart } 125686c67379SJames Smart 125786c67379SJames Smart int 125886c67379SJames Smart lpfc_nvmet_rcv_unsol_abort(struct lpfc_vport *vport, 125986c67379SJames Smart struct fc_frame_header *fc_hdr) 126086c67379SJames Smart 126186c67379SJames Smart { 126286c67379SJames Smart #if (IS_ENABLED(CONFIG_NVME_TARGET_FC)) 126386c67379SJames Smart struct lpfc_hba *phba = vport->phba; 126486c67379SJames Smart struct lpfc_nvmet_rcv_ctx *ctxp, *next_ctxp; 126586c67379SJames Smart struct nvmefc_tgt_fcp_req *rsp; 126686c67379SJames Smart uint16_t xri; 126786c67379SJames Smart unsigned long iflag = 0; 126886c67379SJames Smart 126986c67379SJames Smart xri = be16_to_cpu(fc_hdr->fh_ox_id); 127086c67379SJames Smart 127186c67379SJames Smart spin_lock_irqsave(&phba->hbalock, iflag); 127286c67379SJames Smart spin_lock(&phba->sli4_hba.abts_nvme_buf_list_lock); 127386c67379SJames Smart list_for_each_entry_safe(ctxp, next_ctxp, 127486c67379SJames Smart &phba->sli4_hba.lpfc_abts_nvmet_ctx_list, 127586c67379SJames Smart list) { 12766c621a22SJames Smart if (ctxp->ctxbuf->sglq->sli4_xritag != xri) 127786c67379SJames Smart continue; 127886c67379SJames Smart 127986c67379SJames Smart spin_unlock(&phba->sli4_hba.abts_nvme_buf_list_lock); 128086c67379SJames Smart spin_unlock_irqrestore(&phba->hbalock, iflag); 128186c67379SJames Smart 128286c67379SJames Smart spin_lock_irqsave(&ctxp->ctxlock, iflag); 128386c67379SJames Smart ctxp->flag |= LPFC_NVMET_ABTS_RCV; 128486c67379SJames Smart spin_unlock_irqrestore(&ctxp->ctxlock, iflag); 128586c67379SJames Smart 128686c67379SJames Smart lpfc_nvmeio_data(phba, 128786c67379SJames Smart "NVMET ABTS RCV: xri x%x CPU %02x rjt %d\n", 128886c67379SJames Smart xri, smp_processor_id(), 0); 128986c67379SJames Smart 129086c67379SJames Smart lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS, 129186c67379SJames Smart "6319 NVMET Rcv ABTS:acc xri x%x\n", xri); 129286c67379SJames Smart 129386c67379SJames Smart rsp = &ctxp->ctx.fcp_req; 129486c67379SJames Smart nvmet_fc_rcv_fcp_abort(phba->targetport, rsp); 129586c67379SJames Smart 129686c67379SJames Smart /* Respond with BA_ACC accordingly */ 129786c67379SJames Smart lpfc_sli4_seq_abort_rsp(vport, fc_hdr, 1); 129886c67379SJames Smart return 0; 129986c67379SJames Smart } 130086c67379SJames Smart spin_unlock(&phba->sli4_hba.abts_nvme_buf_list_lock); 130186c67379SJames Smart spin_unlock_irqrestore(&phba->hbalock, iflag); 130286c67379SJames Smart 130386c67379SJames Smart lpfc_nvmeio_data(phba, "NVMET ABTS RCV: xri x%x CPU %02x rjt %d\n", 130486c67379SJames Smart xri, smp_processor_id(), 1); 130586c67379SJames Smart 130686c67379SJames Smart lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS, 130786c67379SJames Smart "6320 NVMET Rcv ABTS:rjt xri x%x\n", xri); 130886c67379SJames Smart 130986c67379SJames Smart /* Respond with BA_RJT accordingly */ 131086c67379SJames Smart lpfc_sli4_seq_abort_rsp(vport, fc_hdr, 0); 131186c67379SJames Smart #endif 1312b06e13c3SJens Axboe return 0; 1313318083adSJames Smart } 1314318083adSJames Smart 1315d613b6a7SJames Smart void 1316d613b6a7SJames Smart lpfc_nvmet_destroy_targetport(struct lpfc_hba *phba) 1317d613b6a7SJames Smart { 13187d708033SJames Smart #if (IS_ENABLED(CONFIG_NVME_TARGET_FC)) 1319d613b6a7SJames Smart struct lpfc_nvmet_tgtport *tgtp; 1320d613b6a7SJames Smart 1321d613b6a7SJames Smart if (phba->nvmet_support == 0) 1322d613b6a7SJames Smart return; 1323d613b6a7SJames Smart if (phba->targetport) { 1324d613b6a7SJames Smart tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 1325d613b6a7SJames Smart init_completion(&tgtp->tport_unreg_done); 1326d613b6a7SJames Smart nvmet_fc_unregister_targetport(phba->targetport); 1327d613b6a7SJames Smart wait_for_completion_timeout(&tgtp->tport_unreg_done, 5); 13286c621a22SJames Smart lpfc_nvmet_cleanup_io_context(phba); 1329d613b6a7SJames Smart } 1330d613b6a7SJames Smart phba->targetport = NULL; 1331166d7211SJames Smart #endif 1332d613b6a7SJames Smart } 1333d613b6a7SJames Smart 1334d613b6a7SJames Smart /** 1335d613b6a7SJames Smart * lpfc_nvmet_unsol_ls_buffer - Process an unsolicited event data buffer 1336d613b6a7SJames Smart * @phba: pointer to lpfc hba data structure. 1337d613b6a7SJames Smart * @pring: pointer to a SLI ring. 1338d613b6a7SJames Smart * @nvmebuf: pointer to lpfc nvme command HBQ data structure. 1339d613b6a7SJames Smart * 1340d613b6a7SJames Smart * This routine is used for processing the WQE associated with a unsolicited 1341d613b6a7SJames Smart * event. It first determines whether there is an existing ndlp that matches 1342d613b6a7SJames Smart * the DID from the unsolicited WQE. If not, it will create a new one with 1343d613b6a7SJames Smart * the DID from the unsolicited WQE. The ELS command from the unsolicited 1344d613b6a7SJames Smart * WQE is then used to invoke the proper routine and to set up proper state 1345d613b6a7SJames Smart * of the discovery state machine. 1346d613b6a7SJames Smart **/ 1347d613b6a7SJames Smart static void 1348d613b6a7SJames Smart lpfc_nvmet_unsol_ls_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, 1349d613b6a7SJames Smart struct hbq_dmabuf *nvmebuf) 1350d613b6a7SJames Smart { 13517d708033SJames Smart #if (IS_ENABLED(CONFIG_NVME_TARGET_FC)) 1352d613b6a7SJames Smart struct lpfc_nvmet_tgtport *tgtp; 1353d613b6a7SJames Smart struct fc_frame_header *fc_hdr; 1354d613b6a7SJames Smart struct lpfc_nvmet_rcv_ctx *ctxp; 1355d613b6a7SJames Smart uint32_t *payload; 1356d613b6a7SJames Smart uint32_t size, oxid, sid, rc; 1357d613b6a7SJames Smart 1358d613b6a7SJames Smart if (!nvmebuf || !phba->targetport) { 1359d613b6a7SJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR, 1360d613b6a7SJames Smart "6154 LS Drop IO\n"); 13612b65e182SJames Smart oxid = 0; 13622b65e182SJames Smart size = 0; 13632b65e182SJames Smart sid = 0; 1364547077a4SJames Smart ctxp = NULL; 1365d613b6a7SJames Smart goto dropit; 1366d613b6a7SJames Smart } 1367d613b6a7SJames Smart 1368d613b6a7SJames Smart tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 1369d613b6a7SJames Smart payload = (uint32_t *)(nvmebuf->dbuf.virt); 1370d613b6a7SJames Smart fc_hdr = (struct fc_frame_header *)(nvmebuf->hbuf.virt); 1371d613b6a7SJames Smart size = bf_get(lpfc_rcqe_length, &nvmebuf->cq_event.cqe.rcqe_cmpl); 1372d613b6a7SJames Smart oxid = be16_to_cpu(fc_hdr->fh_ox_id); 1373d613b6a7SJames Smart sid = sli4_sid_from_fc_hdr(fc_hdr); 1374d613b6a7SJames Smart 1375d613b6a7SJames Smart ctxp = kzalloc(sizeof(struct lpfc_nvmet_rcv_ctx), GFP_ATOMIC); 1376d613b6a7SJames Smart if (ctxp == NULL) { 1377d613b6a7SJames Smart atomic_inc(&tgtp->rcv_ls_req_drop); 1378d613b6a7SJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR, 1379d613b6a7SJames Smart "6155 LS Drop IO x%x: Alloc\n", 1380d613b6a7SJames Smart oxid); 1381d613b6a7SJames Smart dropit: 13822b65e182SJames Smart lpfc_nvmeio_data(phba, "NVMET LS DROP: " 13832b65e182SJames Smart "xri x%x sz %d from %06x\n", 13842b65e182SJames Smart oxid, size, sid); 1385d613b6a7SJames Smart if (nvmebuf) 1386d613b6a7SJames Smart lpfc_in_buf_free(phba, &nvmebuf->dbuf); 1387d613b6a7SJames Smart return; 1388d613b6a7SJames Smart } 1389d613b6a7SJames Smart ctxp->phba = phba; 1390d613b6a7SJames Smart ctxp->size = size; 1391d613b6a7SJames Smart ctxp->oxid = oxid; 1392d613b6a7SJames Smart ctxp->sid = sid; 1393d613b6a7SJames Smart ctxp->wqeq = NULL; 1394ce1b591cSJames Smart ctxp->state = LPFC_NVMET_STE_LS_RCV; 1395ce1b591cSJames Smart ctxp->entry_cnt = 1; 1396d613b6a7SJames Smart ctxp->rqb_buffer = (void *)nvmebuf; 13972b65e182SJames Smart 13982b65e182SJames Smart lpfc_nvmeio_data(phba, "NVMET LS RCV: xri x%x sz %d from %06x\n", 13992b65e182SJames Smart oxid, size, sid); 1400d613b6a7SJames Smart /* 1401d613b6a7SJames Smart * The calling sequence should be: 1402d613b6a7SJames Smart * nvmet_fc_rcv_ls_req -> lpfc_nvmet_xmt_ls_rsp/cmp ->_req->done 1403d613b6a7SJames Smart * lpfc_nvmet_xmt_ls_rsp_cmp should free the allocated ctxp. 1404d613b6a7SJames Smart */ 1405d613b6a7SJames Smart atomic_inc(&tgtp->rcv_ls_req_in); 1406d613b6a7SJames Smart rc = nvmet_fc_rcv_ls_req(phba->targetport, &ctxp->ctx.ls_req, 1407d613b6a7SJames Smart payload, size); 1408d613b6a7SJames Smart 1409d613b6a7SJames Smart lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC, 1410ce1b591cSJames Smart "6037 NVMET Unsol rcv: sz %d rc %d: %08x %08x %08x " 1411ce1b591cSJames Smart "%08x %08x %08x\n", size, rc, 1412d613b6a7SJames Smart *payload, *(payload+1), *(payload+2), 1413d613b6a7SJames Smart *(payload+3), *(payload+4), *(payload+5)); 14142b65e182SJames Smart 1415d613b6a7SJames Smart if (rc == 0) { 1416d613b6a7SJames Smart atomic_inc(&tgtp->rcv_ls_req_out); 1417d613b6a7SJames Smart return; 1418d613b6a7SJames Smart } 14192b65e182SJames Smart 14202b65e182SJames Smart lpfc_nvmeio_data(phba, "NVMET LS DROP: xri x%x sz %d from %06x\n", 14212b65e182SJames Smart oxid, size, sid); 14222b65e182SJames Smart 1423d613b6a7SJames Smart atomic_inc(&tgtp->rcv_ls_req_drop); 1424d613b6a7SJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR, 1425d613b6a7SJames Smart "6156 LS Drop IO x%x: nvmet_fc_rcv_ls_req %d\n", 1426d613b6a7SJames Smart ctxp->oxid, rc); 1427d613b6a7SJames Smart 1428d613b6a7SJames Smart /* We assume a rcv'ed cmd ALWAYs fits into 1 buffer */ 1429d613b6a7SJames Smart if (nvmebuf) 1430d613b6a7SJames Smart lpfc_in_buf_free(phba, &nvmebuf->dbuf); 1431d613b6a7SJames Smart 1432d613b6a7SJames Smart atomic_inc(&tgtp->xmt_ls_abort); 1433d613b6a7SJames Smart lpfc_nvmet_unsol_ls_issue_abort(phba, ctxp, sid, oxid); 1434166d7211SJames Smart #endif 1435d613b6a7SJames Smart } 1436d613b6a7SJames Smart 143766d7ce93SDick Kennedy static struct lpfc_nvmet_ctxbuf * 143866d7ce93SDick Kennedy lpfc_nvmet_replenish_context(struct lpfc_hba *phba, 143966d7ce93SDick Kennedy struct lpfc_nvmet_ctx_info *current_infop) 144066d7ce93SDick Kennedy { 144166d7ce93SDick Kennedy struct lpfc_nvmet_ctxbuf *ctx_buf = NULL; 144266d7ce93SDick Kennedy struct lpfc_nvmet_ctx_info *get_infop; 144366d7ce93SDick Kennedy int i; 144466d7ce93SDick Kennedy 144566d7ce93SDick Kennedy /* 144666d7ce93SDick Kennedy * The current_infop for the MRQ a NVME command IU was received 144766d7ce93SDick Kennedy * on is empty. Our goal is to replenish this MRQs context 144866d7ce93SDick Kennedy * list from a another CPUs. 144966d7ce93SDick Kennedy * 145066d7ce93SDick Kennedy * First we need to pick a context list to start looking on. 145166d7ce93SDick Kennedy * nvmet_ctx_start_cpu has available context the last time 145266d7ce93SDick Kennedy * we needed to replenish this CPU where nvmet_ctx_next_cpu 145366d7ce93SDick Kennedy * is just the next sequential CPU for this MRQ. 145466d7ce93SDick Kennedy */ 145566d7ce93SDick Kennedy if (current_infop->nvmet_ctx_start_cpu) 145666d7ce93SDick Kennedy get_infop = current_infop->nvmet_ctx_start_cpu; 145766d7ce93SDick Kennedy else 145866d7ce93SDick Kennedy get_infop = current_infop->nvmet_ctx_next_cpu; 145966d7ce93SDick Kennedy 146066d7ce93SDick Kennedy for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) { 146166d7ce93SDick Kennedy if (get_infop == current_infop) { 146266d7ce93SDick Kennedy get_infop = get_infop->nvmet_ctx_next_cpu; 146366d7ce93SDick Kennedy continue; 146466d7ce93SDick Kennedy } 146566d7ce93SDick Kennedy spin_lock(&get_infop->nvmet_ctx_list_lock); 146666d7ce93SDick Kennedy 146766d7ce93SDick Kennedy /* Just take the entire context list, if there are any */ 146866d7ce93SDick Kennedy if (get_infop->nvmet_ctx_list_cnt) { 146966d7ce93SDick Kennedy list_splice_init(&get_infop->nvmet_ctx_list, 147066d7ce93SDick Kennedy ¤t_infop->nvmet_ctx_list); 147166d7ce93SDick Kennedy current_infop->nvmet_ctx_list_cnt = 147266d7ce93SDick Kennedy get_infop->nvmet_ctx_list_cnt - 1; 147366d7ce93SDick Kennedy get_infop->nvmet_ctx_list_cnt = 0; 147466d7ce93SDick Kennedy spin_unlock(&get_infop->nvmet_ctx_list_lock); 147566d7ce93SDick Kennedy 147666d7ce93SDick Kennedy current_infop->nvmet_ctx_start_cpu = get_infop; 147766d7ce93SDick Kennedy list_remove_head(¤t_infop->nvmet_ctx_list, 147866d7ce93SDick Kennedy ctx_buf, struct lpfc_nvmet_ctxbuf, 147966d7ce93SDick Kennedy list); 148066d7ce93SDick Kennedy return ctx_buf; 148166d7ce93SDick Kennedy } 148266d7ce93SDick Kennedy 148366d7ce93SDick Kennedy /* Otherwise, move on to the next CPU for this MRQ */ 148466d7ce93SDick Kennedy spin_unlock(&get_infop->nvmet_ctx_list_lock); 148566d7ce93SDick Kennedy get_infop = get_infop->nvmet_ctx_next_cpu; 148666d7ce93SDick Kennedy } 148766d7ce93SDick Kennedy 148866d7ce93SDick Kennedy /* Nothing found, all contexts for the MRQ are in-flight */ 148966d7ce93SDick Kennedy return NULL; 149066d7ce93SDick Kennedy } 149166d7ce93SDick Kennedy 1492d613b6a7SJames Smart /** 1493d613b6a7SJames Smart * lpfc_nvmet_unsol_fcp_buffer - Process an unsolicited event data buffer 1494d613b6a7SJames Smart * @phba: pointer to lpfc hba data structure. 149566d7ce93SDick Kennedy * @idx: relative index of MRQ vector 1496d613b6a7SJames Smart * @nvmebuf: pointer to lpfc nvme command HBQ data structure. 1497d613b6a7SJames Smart * 1498d613b6a7SJames Smart * This routine is used for processing the WQE associated with a unsolicited 1499d613b6a7SJames Smart * event. It first determines whether there is an existing ndlp that matches 1500d613b6a7SJames Smart * the DID from the unsolicited WQE. If not, it will create a new one with 1501d613b6a7SJames Smart * the DID from the unsolicited WQE. The ELS command from the unsolicited 1502d613b6a7SJames Smart * WQE is then used to invoke the proper routine and to set up proper state 1503d613b6a7SJames Smart * of the discovery state machine. 1504d613b6a7SJames Smart **/ 1505d613b6a7SJames Smart static void 1506d613b6a7SJames Smart lpfc_nvmet_unsol_fcp_buffer(struct lpfc_hba *phba, 150766d7ce93SDick Kennedy uint32_t idx, 1508d613b6a7SJames Smart struct rqb_dmabuf *nvmebuf, 1509d613b6a7SJames Smart uint64_t isr_timestamp) 1510d613b6a7SJames Smart { 15117d708033SJames Smart #if (IS_ENABLED(CONFIG_NVME_TARGET_FC)) 1512d613b6a7SJames Smart struct lpfc_nvmet_rcv_ctx *ctxp; 1513d613b6a7SJames Smart struct lpfc_nvmet_tgtport *tgtp; 1514d613b6a7SJames Smart struct fc_frame_header *fc_hdr; 15156c621a22SJames Smart struct lpfc_nvmet_ctxbuf *ctx_buf; 151666d7ce93SDick Kennedy struct lpfc_nvmet_ctx_info *current_infop; 1517d613b6a7SJames Smart uint32_t *payload; 1518a8cf5dfeSJames Smart uint32_t size, oxid, sid, rc, qno; 15196c621a22SJames Smart unsigned long iflag; 152066d7ce93SDick Kennedy int current_cpu; 15212b65e182SJames Smart #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 15222b65e182SJames Smart uint32_t id; 15232b65e182SJames Smart #endif 1524d613b6a7SJames Smart 15256c621a22SJames Smart ctx_buf = NULL; 1526d613b6a7SJames Smart if (!nvmebuf || !phba->targetport) { 1527d613b6a7SJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR, 15286c621a22SJames Smart "6157 NVMET FCP Drop IO\n"); 15292b65e182SJames Smart oxid = 0; 15302b65e182SJames Smart size = 0; 15312b65e182SJames Smart sid = 0; 1532547077a4SJames Smart ctxp = NULL; 1533d613b6a7SJames Smart goto dropit; 1534d613b6a7SJames Smart } 1535d613b6a7SJames Smart 153666d7ce93SDick Kennedy /* 153766d7ce93SDick Kennedy * Get a pointer to the context list for this MRQ based on 153866d7ce93SDick Kennedy * the CPU this MRQ IRQ is associated with. If the CPU association 153966d7ce93SDick Kennedy * changes from our initial assumption, the context list could 154066d7ce93SDick Kennedy * be empty, thus it would need to be replenished with the 154166d7ce93SDick Kennedy * context list from another CPU for this MRQ. 154266d7ce93SDick Kennedy */ 154366d7ce93SDick Kennedy current_cpu = smp_processor_id(); 154466d7ce93SDick Kennedy current_infop = lpfc_get_ctx_list(phba, current_cpu, idx); 154566d7ce93SDick Kennedy spin_lock_irqsave(¤t_infop->nvmet_ctx_list_lock, iflag); 154666d7ce93SDick Kennedy if (current_infop->nvmet_ctx_list_cnt) { 154766d7ce93SDick Kennedy list_remove_head(¤t_infop->nvmet_ctx_list, 15486c621a22SJames Smart ctx_buf, struct lpfc_nvmet_ctxbuf, list); 154966d7ce93SDick Kennedy current_infop->nvmet_ctx_list_cnt--; 1550966bb5b7SJames Smart } else { 155166d7ce93SDick Kennedy ctx_buf = lpfc_nvmet_replenish_context(phba, current_infop); 15526c621a22SJames Smart } 155366d7ce93SDick Kennedy spin_unlock_irqrestore(¤t_infop->nvmet_ctx_list_lock, iflag); 15546c621a22SJames Smart 1555a8cf5dfeSJames Smart fc_hdr = (struct fc_frame_header *)(nvmebuf->hbuf.virt); 1556a8cf5dfeSJames Smart oxid = be16_to_cpu(fc_hdr->fh_ox_id); 1557a8cf5dfeSJames Smart size = nvmebuf->bytes_recv; 1558a8cf5dfeSJames Smart 1559a8cf5dfeSJames Smart #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1560a8cf5dfeSJames Smart if (phba->cpucheck_on & LPFC_CHECK_NVMET_RCV) { 1561a8cf5dfeSJames Smart id = smp_processor_id(); 1562a8cf5dfeSJames Smart if (id < LPFC_CHECK_CPU_CNT) 1563a8cf5dfeSJames Smart phba->cpucheck_rcv_io[id]++; 1564a8cf5dfeSJames Smart } 1565a8cf5dfeSJames Smart #endif 1566a8cf5dfeSJames Smart 1567a8cf5dfeSJames Smart lpfc_nvmeio_data(phba, "NVMET FCP RCV: xri x%x sz %d CPU %02x\n", 1568a8cf5dfeSJames Smart oxid, size, smp_processor_id()); 1569a8cf5dfeSJames Smart 15706c621a22SJames Smart if (!ctx_buf) { 1571a8cf5dfeSJames Smart /* Queue this NVME IO to process later */ 1572a8cf5dfeSJames Smart spin_lock_irqsave(&phba->sli4_hba.nvmet_io_wait_lock, iflag); 1573a8cf5dfeSJames Smart list_add_tail(&nvmebuf->hbuf.list, 1574a8cf5dfeSJames Smart &phba->sli4_hba.lpfc_nvmet_io_wait_list); 1575a8cf5dfeSJames Smart phba->sli4_hba.nvmet_io_wait_cnt++; 1576a8cf5dfeSJames Smart phba->sli4_hba.nvmet_io_wait_total++; 1577a8cf5dfeSJames Smart spin_unlock_irqrestore(&phba->sli4_hba.nvmet_io_wait_lock, 1578a8cf5dfeSJames Smart iflag); 1579a8cf5dfeSJames Smart 1580a8cf5dfeSJames Smart /* Post a brand new DMA buffer to RQ */ 1581a8cf5dfeSJames Smart qno = nvmebuf->idx; 1582a8cf5dfeSJames Smart lpfc_post_rq_buffer( 1583a8cf5dfeSJames Smart phba, phba->sli4_hba.nvmet_mrq_hdr[qno], 1584a8cf5dfeSJames Smart phba->sli4_hba.nvmet_mrq_data[qno], 1, qno); 1585a8cf5dfeSJames Smart return; 15866c621a22SJames Smart } 1587d613b6a7SJames Smart 1588d613b6a7SJames Smart tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 1589d613b6a7SJames Smart payload = (uint32_t *)(nvmebuf->dbuf.virt); 1590d613b6a7SJames Smart sid = sli4_sid_from_fc_hdr(fc_hdr); 1591d613b6a7SJames Smart 15926c621a22SJames Smart ctxp = (struct lpfc_nvmet_rcv_ctx *)ctx_buf->context; 1593ce1b591cSJames Smart if (ctxp->state != LPFC_NVMET_STE_FREE) { 1594ce1b591cSJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR, 1595ce1b591cSJames Smart "6414 NVMET Context corrupt %d %d oxid x%x\n", 1596ce1b591cSJames Smart ctxp->state, ctxp->entry_cnt, ctxp->oxid); 1597ce1b591cSJames Smart } 1598d613b6a7SJames Smart ctxp->wqeq = NULL; 1599d613b6a7SJames Smart ctxp->txrdy = NULL; 1600d613b6a7SJames Smart ctxp->offset = 0; 1601d613b6a7SJames Smart ctxp->phba = phba; 1602d613b6a7SJames Smart ctxp->size = size; 1603d613b6a7SJames Smart ctxp->oxid = oxid; 1604d613b6a7SJames Smart ctxp->sid = sid; 160566d7ce93SDick Kennedy ctxp->idx = idx; 1606d613b6a7SJames Smart ctxp->state = LPFC_NVMET_STE_RCV; 1607d613b6a7SJames Smart ctxp->entry_cnt = 1; 1608d613b6a7SJames Smart ctxp->flag = 0; 16096c621a22SJames Smart ctxp->ctxbuf = ctx_buf; 16102b7824d0SJames Smart spin_lock_init(&ctxp->ctxlock); 1611d613b6a7SJames Smart 16122b65e182SJames Smart #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 16132b65e182SJames Smart if (phba->ktime_on) { 16142b65e182SJames Smart ctxp->ts_isr_cmd = isr_timestamp; 16152b65e182SJames Smart ctxp->ts_cmd_nvme = ktime_get_ns(); 16162b65e182SJames Smart ctxp->ts_nvme_data = 0; 16172b65e182SJames Smart ctxp->ts_data_wqput = 0; 16182b65e182SJames Smart ctxp->ts_isr_data = 0; 16192b65e182SJames Smart ctxp->ts_data_nvme = 0; 16202b65e182SJames Smart ctxp->ts_nvme_status = 0; 16212b65e182SJames Smart ctxp->ts_status_wqput = 0; 16222b65e182SJames Smart ctxp->ts_isr_status = 0; 16232b65e182SJames Smart ctxp->ts_status_nvme = 0; 16242b65e182SJames Smart } 16252b65e182SJames Smart #endif 16262b65e182SJames Smart 1627d613b6a7SJames Smart atomic_inc(&tgtp->rcv_fcp_cmd_in); 1628d613b6a7SJames Smart /* 1629d613b6a7SJames Smart * The calling sequence should be: 1630d613b6a7SJames Smart * nvmet_fc_rcv_fcp_req -> lpfc_nvmet_xmt_fcp_op/cmp -> req->done 1631d613b6a7SJames Smart * lpfc_nvmet_xmt_fcp_op_cmp should free the allocated ctxp. 16326c621a22SJames Smart * When we return from nvmet_fc_rcv_fcp_req, all relevant info in 16336c621a22SJames Smart * the NVME command / FC header is stored, so we are free to repost 16346c621a22SJames Smart * the buffer. 1635d613b6a7SJames Smart */ 1636d613b6a7SJames Smart rc = nvmet_fc_rcv_fcp_req(phba->targetport, &ctxp->ctx.fcp_req, 1637d613b6a7SJames Smart payload, size); 1638d613b6a7SJames Smart 1639d613b6a7SJames Smart /* Process FCP command */ 1640d613b6a7SJames Smart if (rc == 0) { 1641d613b6a7SJames Smart atomic_inc(&tgtp->rcv_fcp_cmd_out); 16426c621a22SJames Smart lpfc_rq_buf_free(phba, &nvmebuf->hbuf); /* repost */ 1643d613b6a7SJames Smart return; 1644d613b6a7SJames Smart } 1645d613b6a7SJames Smart 1646d613b6a7SJames Smart atomic_inc(&tgtp->rcv_fcp_cmd_drop); 1647d613b6a7SJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR, 1648547077a4SJames Smart "6159 FCP Drop IO x%x: err x%x: x%x x%x x%x\n", 1649547077a4SJames Smart ctxp->oxid, rc, 1650547077a4SJames Smart atomic_read(&tgtp->rcv_fcp_cmd_in), 1651547077a4SJames Smart atomic_read(&tgtp->rcv_fcp_cmd_out), 1652547077a4SJames Smart atomic_read(&tgtp->xmt_fcp_release)); 1653d613b6a7SJames Smart dropit: 16542b65e182SJames Smart lpfc_nvmeio_data(phba, "NVMET FCP DROP: xri x%x sz %d from %06x\n", 16552b65e182SJames Smart oxid, size, sid); 1656d613b6a7SJames Smart if (oxid) { 16576c621a22SJames Smart lpfc_nvmet_defer_release(phba, ctxp); 1658d613b6a7SJames Smart lpfc_nvmet_unsol_fcp_issue_abort(phba, ctxp, sid, oxid); 16596c621a22SJames Smart lpfc_rq_buf_free(phba, &nvmebuf->hbuf); /* repost */ 1660d613b6a7SJames Smart return; 1661d613b6a7SJames Smart } 1662d613b6a7SJames Smart 16636c621a22SJames Smart if (ctx_buf) 16646c621a22SJames Smart lpfc_nvmet_ctxbuf_post(phba, ctx_buf); 16656c621a22SJames Smart 16666c621a22SJames Smart if (nvmebuf) 16676c621a22SJames Smart lpfc_rq_buf_free(phba, &nvmebuf->hbuf); /* repost */ 1668166d7211SJames Smart #endif 1669d613b6a7SJames Smart } 1670d613b6a7SJames Smart 1671d613b6a7SJames Smart /** 1672d613b6a7SJames Smart * lpfc_nvmet_unsol_ls_event - Process an unsolicited event from an nvme nport 1673d613b6a7SJames Smart * @phba: pointer to lpfc hba data structure. 1674d613b6a7SJames Smart * @pring: pointer to a SLI ring. 1675d613b6a7SJames Smart * @nvmebuf: pointer to received nvme data structure. 1676d613b6a7SJames Smart * 1677d613b6a7SJames Smart * This routine is used to process an unsolicited event received from a SLI 1678d613b6a7SJames Smart * (Service Level Interface) ring. The actual processing of the data buffer 1679d613b6a7SJames Smart * associated with the unsolicited event is done by invoking the routine 1680d613b6a7SJames Smart * lpfc_nvmet_unsol_ls_buffer() after properly set up the buffer from the 1681d613b6a7SJames Smart * SLI RQ on which the unsolicited event was received. 1682d613b6a7SJames Smart **/ 1683d613b6a7SJames Smart void 1684d613b6a7SJames Smart lpfc_nvmet_unsol_ls_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, 1685d613b6a7SJames Smart struct lpfc_iocbq *piocb) 1686d613b6a7SJames Smart { 1687d613b6a7SJames Smart struct lpfc_dmabuf *d_buf; 1688d613b6a7SJames Smart struct hbq_dmabuf *nvmebuf; 1689d613b6a7SJames Smart 1690d613b6a7SJames Smart d_buf = piocb->context2; 1691d613b6a7SJames Smart nvmebuf = container_of(d_buf, struct hbq_dmabuf, dbuf); 1692d613b6a7SJames Smart 1693d613b6a7SJames Smart if (phba->nvmet_support == 0) { 1694d613b6a7SJames Smart lpfc_in_buf_free(phba, &nvmebuf->dbuf); 1695d613b6a7SJames Smart return; 1696d613b6a7SJames Smart } 1697d613b6a7SJames Smart lpfc_nvmet_unsol_ls_buffer(phba, pring, nvmebuf); 1698d613b6a7SJames Smart } 1699d613b6a7SJames Smart 1700d613b6a7SJames Smart /** 1701d613b6a7SJames Smart * lpfc_nvmet_unsol_fcp_event - Process an unsolicited event from an nvme nport 1702d613b6a7SJames Smart * @phba: pointer to lpfc hba data structure. 170366d7ce93SDick Kennedy * @idx: relative index of MRQ vector 1704d613b6a7SJames Smart * @nvmebuf: pointer to received nvme data structure. 1705d613b6a7SJames Smart * 1706d613b6a7SJames Smart * This routine is used to process an unsolicited event received from a SLI 1707d613b6a7SJames Smart * (Service Level Interface) ring. The actual processing of the data buffer 1708d613b6a7SJames Smart * associated with the unsolicited event is done by invoking the routine 1709d613b6a7SJames Smart * lpfc_nvmet_unsol_fcp_buffer() after properly set up the buffer from the 1710d613b6a7SJames Smart * SLI RQ on which the unsolicited event was received. 1711d613b6a7SJames Smart **/ 1712d613b6a7SJames Smart void 1713d613b6a7SJames Smart lpfc_nvmet_unsol_fcp_event(struct lpfc_hba *phba, 171466d7ce93SDick Kennedy uint32_t idx, 1715d613b6a7SJames Smart struct rqb_dmabuf *nvmebuf, 1716d613b6a7SJames Smart uint64_t isr_timestamp) 1717d613b6a7SJames Smart { 1718d613b6a7SJames Smart if (phba->nvmet_support == 0) { 17196c621a22SJames Smart lpfc_rq_buf_free(phba, &nvmebuf->hbuf); 1720d613b6a7SJames Smart return; 1721d613b6a7SJames Smart } 172266d7ce93SDick Kennedy lpfc_nvmet_unsol_fcp_buffer(phba, idx, nvmebuf, 1723d613b6a7SJames Smart isr_timestamp); 1724d613b6a7SJames Smart } 1725d613b6a7SJames Smart 1726d613b6a7SJames Smart /** 1727d613b6a7SJames Smart * lpfc_nvmet_prep_ls_wqe - Allocate and prepare a lpfc wqe data structure 1728d613b6a7SJames Smart * @phba: pointer to a host N_Port data structure. 1729d613b6a7SJames Smart * @ctxp: Context info for NVME LS Request 1730d613b6a7SJames Smart * @rspbuf: DMA buffer of NVME command. 1731d613b6a7SJames Smart * @rspsize: size of the NVME command. 1732d613b6a7SJames Smart * 1733d613b6a7SJames Smart * This routine is used for allocating a lpfc-WQE data structure from 1734d613b6a7SJames Smart * the driver lpfc-WQE free-list and prepare the WQE with the parameters 1735d613b6a7SJames Smart * passed into the routine for discovery state machine to issue an Extended 1736d613b6a7SJames Smart * Link Service (NVME) commands. It is a generic lpfc-WQE allocation 1737d613b6a7SJames Smart * and preparation routine that is used by all the discovery state machine 1738d613b6a7SJames Smart * routines and the NVME command-specific fields will be later set up by 1739d613b6a7SJames Smart * the individual discovery machine routines after calling this routine 1740d613b6a7SJames Smart * allocating and preparing a generic WQE data structure. It fills in the 1741d613b6a7SJames Smart * Buffer Descriptor Entries (BDEs), allocates buffers for both command 1742d613b6a7SJames Smart * payload and response payload (if expected). The reference count on the 1743d613b6a7SJames Smart * ndlp is incremented by 1 and the reference to the ndlp is put into 1744d613b6a7SJames Smart * context1 of the WQE data structure for this WQE to hold the ndlp 1745d613b6a7SJames Smart * reference for the command's callback function to access later. 1746d613b6a7SJames Smart * 1747d613b6a7SJames Smart * Return code 1748d613b6a7SJames Smart * Pointer to the newly allocated/prepared nvme wqe data structure 1749d613b6a7SJames Smart * NULL - when nvme wqe data structure allocation/preparation failed 1750d613b6a7SJames Smart **/ 1751d613b6a7SJames Smart static struct lpfc_iocbq * 1752d613b6a7SJames Smart lpfc_nvmet_prep_ls_wqe(struct lpfc_hba *phba, 1753d613b6a7SJames Smart struct lpfc_nvmet_rcv_ctx *ctxp, 1754d613b6a7SJames Smart dma_addr_t rspbuf, uint16_t rspsize) 1755d613b6a7SJames Smart { 1756d613b6a7SJames Smart struct lpfc_nodelist *ndlp; 1757d613b6a7SJames Smart struct lpfc_iocbq *nvmewqe; 1758d613b6a7SJames Smart union lpfc_wqe *wqe; 1759d613b6a7SJames Smart 1760d613b6a7SJames Smart if (!lpfc_is_link_up(phba)) { 1761d613b6a7SJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_DISC, 1762ce1b591cSJames Smart "6104 NVMET prep LS wqe: link err: " 1763ce1b591cSJames Smart "NPORT x%x oxid:x%x ste %d\n", 1764ce1b591cSJames Smart ctxp->sid, ctxp->oxid, ctxp->state); 1765d613b6a7SJames Smart return NULL; 1766d613b6a7SJames Smart } 1767d613b6a7SJames Smart 1768d613b6a7SJames Smart /* Allocate buffer for command wqe */ 1769d613b6a7SJames Smart nvmewqe = lpfc_sli_get_iocbq(phba); 1770d613b6a7SJames Smart if (nvmewqe == NULL) { 1771d613b6a7SJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_DISC, 1772ce1b591cSJames Smart "6105 NVMET prep LS wqe: No WQE: " 1773ce1b591cSJames Smart "NPORT x%x oxid x%x ste %d\n", 1774ce1b591cSJames Smart ctxp->sid, ctxp->oxid, ctxp->state); 1775d613b6a7SJames Smart return NULL; 1776d613b6a7SJames Smart } 1777d613b6a7SJames Smart 1778d613b6a7SJames Smart ndlp = lpfc_findnode_did(phba->pport, ctxp->sid); 1779d613b6a7SJames Smart if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) || 1780d613b6a7SJames Smart ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && 1781d613b6a7SJames Smart (ndlp->nlp_state != NLP_STE_MAPPED_NODE))) { 1782d613b6a7SJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_DISC, 1783ce1b591cSJames Smart "6106 NVMET prep LS wqe: No ndlp: " 1784ce1b591cSJames Smart "NPORT x%x oxid x%x ste %d\n", 1785ce1b591cSJames Smart ctxp->sid, ctxp->oxid, ctxp->state); 1786d613b6a7SJames Smart goto nvme_wqe_free_wqeq_exit; 1787d613b6a7SJames Smart } 1788d613b6a7SJames Smart ctxp->wqeq = nvmewqe; 1789d613b6a7SJames Smart 1790d613b6a7SJames Smart /* prevent preparing wqe with NULL ndlp reference */ 1791d613b6a7SJames Smart nvmewqe->context1 = lpfc_nlp_get(ndlp); 1792d613b6a7SJames Smart if (nvmewqe->context1 == NULL) 1793d613b6a7SJames Smart goto nvme_wqe_free_wqeq_exit; 1794d613b6a7SJames Smart nvmewqe->context2 = ctxp; 1795d613b6a7SJames Smart 1796d613b6a7SJames Smart wqe = &nvmewqe->wqe; 1797d613b6a7SJames Smart memset(wqe, 0, sizeof(union lpfc_wqe)); 1798d613b6a7SJames Smart 1799d613b6a7SJames Smart /* Words 0 - 2 */ 1800d613b6a7SJames Smart wqe->xmit_sequence.bde.tus.f.bdeFlags = BUFF_TYPE_BDE_64; 1801d613b6a7SJames Smart wqe->xmit_sequence.bde.tus.f.bdeSize = rspsize; 1802d613b6a7SJames Smart wqe->xmit_sequence.bde.addrLow = le32_to_cpu(putPaddrLow(rspbuf)); 1803d613b6a7SJames Smart wqe->xmit_sequence.bde.addrHigh = le32_to_cpu(putPaddrHigh(rspbuf)); 1804d613b6a7SJames Smart 1805d613b6a7SJames Smart /* Word 3 */ 1806d613b6a7SJames Smart 1807d613b6a7SJames Smart /* Word 4 */ 1808d613b6a7SJames Smart 1809d613b6a7SJames Smart /* Word 5 */ 1810d613b6a7SJames Smart bf_set(wqe_dfctl, &wqe->xmit_sequence.wge_ctl, 0); 1811d613b6a7SJames Smart bf_set(wqe_ls, &wqe->xmit_sequence.wge_ctl, 1); 1812d613b6a7SJames Smart bf_set(wqe_la, &wqe->xmit_sequence.wge_ctl, 0); 18138b361639SJames Smart bf_set(wqe_rctl, &wqe->xmit_sequence.wge_ctl, FC_RCTL_ELS4_REP); 1814d613b6a7SJames Smart bf_set(wqe_type, &wqe->xmit_sequence.wge_ctl, FC_TYPE_NVME); 1815d613b6a7SJames Smart 1816d613b6a7SJames Smart /* Word 6 */ 1817d613b6a7SJames Smart bf_set(wqe_ctxt_tag, &wqe->xmit_sequence.wqe_com, 1818d613b6a7SJames Smart phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]); 1819d613b6a7SJames Smart bf_set(wqe_xri_tag, &wqe->xmit_sequence.wqe_com, nvmewqe->sli4_xritag); 1820d613b6a7SJames Smart 1821d613b6a7SJames Smart /* Word 7 */ 1822d613b6a7SJames Smart bf_set(wqe_cmnd, &wqe->xmit_sequence.wqe_com, 1823d613b6a7SJames Smart CMD_XMIT_SEQUENCE64_WQE); 1824d613b6a7SJames Smart bf_set(wqe_ct, &wqe->xmit_sequence.wqe_com, SLI4_CT_RPI); 1825d613b6a7SJames Smart bf_set(wqe_class, &wqe->xmit_sequence.wqe_com, CLASS3); 1826d613b6a7SJames Smart bf_set(wqe_pu, &wqe->xmit_sequence.wqe_com, 0); 1827d613b6a7SJames Smart 1828d613b6a7SJames Smart /* Word 8 */ 1829d613b6a7SJames Smart wqe->xmit_sequence.wqe_com.abort_tag = nvmewqe->iotag; 1830d613b6a7SJames Smart 1831d613b6a7SJames Smart /* Word 9 */ 1832d613b6a7SJames Smart bf_set(wqe_reqtag, &wqe->xmit_sequence.wqe_com, nvmewqe->iotag); 1833d613b6a7SJames Smart /* Needs to be set by caller */ 1834d613b6a7SJames Smart bf_set(wqe_rcvoxid, &wqe->xmit_sequence.wqe_com, ctxp->oxid); 1835d613b6a7SJames Smart 1836d613b6a7SJames Smart /* Word 10 */ 1837d613b6a7SJames Smart bf_set(wqe_dbde, &wqe->xmit_sequence.wqe_com, 1); 1838d613b6a7SJames Smart bf_set(wqe_iod, &wqe->xmit_sequence.wqe_com, LPFC_WQE_IOD_WRITE); 1839d613b6a7SJames Smart bf_set(wqe_lenloc, &wqe->xmit_sequence.wqe_com, 1840d613b6a7SJames Smart LPFC_WQE_LENLOC_WORD12); 1841d613b6a7SJames Smart bf_set(wqe_ebde_cnt, &wqe->xmit_sequence.wqe_com, 0); 1842d613b6a7SJames Smart 1843d613b6a7SJames Smart /* Word 11 */ 1844d613b6a7SJames Smart bf_set(wqe_cqid, &wqe->xmit_sequence.wqe_com, 1845d613b6a7SJames Smart LPFC_WQE_CQ_ID_DEFAULT); 1846d613b6a7SJames Smart bf_set(wqe_cmd_type, &wqe->xmit_sequence.wqe_com, 1847d613b6a7SJames Smart OTHER_COMMAND); 1848d613b6a7SJames Smart 1849d613b6a7SJames Smart /* Word 12 */ 1850d613b6a7SJames Smart wqe->xmit_sequence.xmit_len = rspsize; 1851d613b6a7SJames Smart 1852d613b6a7SJames Smart nvmewqe->retry = 1; 1853d613b6a7SJames Smart nvmewqe->vport = phba->pport; 1854d613b6a7SJames Smart nvmewqe->drvrTimeout = (phba->fc_ratov * 3) + LPFC_DRVR_TIMEOUT; 1855d613b6a7SJames Smart nvmewqe->iocb_flag |= LPFC_IO_NVME_LS; 1856d613b6a7SJames Smart 1857ce1b591cSJames Smart /* Xmit NVMET response to remote NPORT <did> */ 1858d613b6a7SJames Smart lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC, 1859ce1b591cSJames Smart "6039 Xmit NVMET LS response to remote " 1860d613b6a7SJames Smart "NPORT x%x iotag:x%x oxid:x%x size:x%x\n", 1861d613b6a7SJames Smart ndlp->nlp_DID, nvmewqe->iotag, ctxp->oxid, 1862d613b6a7SJames Smart rspsize); 1863d613b6a7SJames Smart return nvmewqe; 1864d613b6a7SJames Smart 1865d613b6a7SJames Smart nvme_wqe_free_wqeq_exit: 1866d613b6a7SJames Smart nvmewqe->context2 = NULL; 1867d613b6a7SJames Smart nvmewqe->context3 = NULL; 1868d613b6a7SJames Smart lpfc_sli_release_iocbq(phba, nvmewqe); 1869d613b6a7SJames Smart return NULL; 1870d613b6a7SJames Smart } 1871d613b6a7SJames Smart 1872d613b6a7SJames Smart 1873d613b6a7SJames Smart static struct lpfc_iocbq * 1874d613b6a7SJames Smart lpfc_nvmet_prep_fcp_wqe(struct lpfc_hba *phba, 1875d613b6a7SJames Smart struct lpfc_nvmet_rcv_ctx *ctxp) 1876d613b6a7SJames Smart { 1877d613b6a7SJames Smart struct nvmefc_tgt_fcp_req *rsp = &ctxp->ctx.fcp_req; 1878d613b6a7SJames Smart struct lpfc_nvmet_tgtport *tgtp; 1879d613b6a7SJames Smart struct sli4_sge *sgl; 1880d613b6a7SJames Smart struct lpfc_nodelist *ndlp; 1881d613b6a7SJames Smart struct lpfc_iocbq *nvmewqe; 1882d613b6a7SJames Smart struct scatterlist *sgel; 1883d613b6a7SJames Smart union lpfc_wqe128 *wqe; 1884d613b6a7SJames Smart uint32_t *txrdy; 1885d613b6a7SJames Smart dma_addr_t physaddr; 1886d613b6a7SJames Smart int i, cnt; 1887d613b6a7SJames Smart int xc = 1; 1888d613b6a7SJames Smart 1889d613b6a7SJames Smart if (!lpfc_is_link_up(phba)) { 1890d613b6a7SJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR, 1891ce1b591cSJames Smart "6107 NVMET prep FCP wqe: link err:" 1892ce1b591cSJames Smart "NPORT x%x oxid x%x ste %d\n", 1893ce1b591cSJames Smart ctxp->sid, ctxp->oxid, ctxp->state); 1894d613b6a7SJames Smart return NULL; 1895d613b6a7SJames Smart } 1896d613b6a7SJames Smart 1897d613b6a7SJames Smart ndlp = lpfc_findnode_did(phba->pport, ctxp->sid); 1898d613b6a7SJames Smart if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) || 1899d613b6a7SJames Smart ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && 1900d613b6a7SJames Smart (ndlp->nlp_state != NLP_STE_MAPPED_NODE))) { 1901d613b6a7SJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR, 1902ce1b591cSJames Smart "6108 NVMET prep FCP wqe: no ndlp: " 1903ce1b591cSJames Smart "NPORT x%x oxid x%x ste %d\n", 1904ce1b591cSJames Smart ctxp->sid, ctxp->oxid, ctxp->state); 1905d613b6a7SJames Smart return NULL; 1906d613b6a7SJames Smart } 1907d613b6a7SJames Smart 19084d4c4a4aSJames Smart if (rsp->sg_cnt > phba->cfg_nvme_seg_cnt) { 1909d613b6a7SJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR, 1910ce1b591cSJames Smart "6109 NVMET prep FCP wqe: seg cnt err: " 1911ce1b591cSJames Smart "NPORT x%x oxid x%x ste %d cnt %d\n", 1912ce1b591cSJames Smart ctxp->sid, ctxp->oxid, ctxp->state, 1913ce1b591cSJames Smart phba->cfg_nvme_seg_cnt); 1914d613b6a7SJames Smart return NULL; 1915d613b6a7SJames Smart } 1916d613b6a7SJames Smart 1917d613b6a7SJames Smart tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 1918d613b6a7SJames Smart nvmewqe = ctxp->wqeq; 1919d613b6a7SJames Smart if (nvmewqe == NULL) { 1920d613b6a7SJames Smart /* Allocate buffer for command wqe */ 19216c621a22SJames Smart nvmewqe = ctxp->ctxbuf->iocbq; 1922d613b6a7SJames Smart if (nvmewqe == NULL) { 1923d613b6a7SJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR, 1924ce1b591cSJames Smart "6110 NVMET prep FCP wqe: No " 1925ce1b591cSJames Smart "WQE: NPORT x%x oxid x%x ste %d\n", 1926ce1b591cSJames Smart ctxp->sid, ctxp->oxid, ctxp->state); 1927d613b6a7SJames Smart return NULL; 1928d613b6a7SJames Smart } 1929d613b6a7SJames Smart ctxp->wqeq = nvmewqe; 1930d613b6a7SJames Smart xc = 0; /* create new XRI */ 1931d613b6a7SJames Smart nvmewqe->sli4_lxritag = NO_XRI; 1932d613b6a7SJames Smart nvmewqe->sli4_xritag = NO_XRI; 1933d613b6a7SJames Smart } 1934d613b6a7SJames Smart 1935d613b6a7SJames Smart /* Sanity check */ 1936d613b6a7SJames Smart if (((ctxp->state == LPFC_NVMET_STE_RCV) && 1937d613b6a7SJames Smart (ctxp->entry_cnt == 1)) || 1938ce1b591cSJames Smart (ctxp->state == LPFC_NVMET_STE_DATA)) { 1939d613b6a7SJames Smart wqe = (union lpfc_wqe128 *)&nvmewqe->wqe; 1940d613b6a7SJames Smart } else { 1941d613b6a7SJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR, 1942ce1b591cSJames Smart "6111 Wrong state NVMET FCP: %d cnt %d\n", 1943ce1b591cSJames Smart ctxp->state, ctxp->entry_cnt); 1944d613b6a7SJames Smart return NULL; 1945d613b6a7SJames Smart } 1946d613b6a7SJames Smart 19476c621a22SJames Smart sgl = (struct sli4_sge *)ctxp->ctxbuf->sglq->sgl; 1948d613b6a7SJames Smart switch (rsp->op) { 1949d613b6a7SJames Smart case NVMET_FCOP_READDATA: 1950d613b6a7SJames Smart case NVMET_FCOP_READDATA_RSP: 1951d613b6a7SJames Smart /* Words 0 - 2 : The first sg segment */ 1952d613b6a7SJames Smart sgel = &rsp->sg[0]; 1953d613b6a7SJames Smart physaddr = sg_dma_address(sgel); 1954d613b6a7SJames Smart wqe->fcp_tsend.bde.tus.f.bdeFlags = BUFF_TYPE_BDE_64; 1955d613b6a7SJames Smart wqe->fcp_tsend.bde.tus.f.bdeSize = sg_dma_len(sgel); 1956d613b6a7SJames Smart wqe->fcp_tsend.bde.addrLow = cpu_to_le32(putPaddrLow(physaddr)); 1957d613b6a7SJames Smart wqe->fcp_tsend.bde.addrHigh = 1958d613b6a7SJames Smart cpu_to_le32(putPaddrHigh(physaddr)); 1959d613b6a7SJames Smart 1960d613b6a7SJames Smart /* Word 3 */ 1961d613b6a7SJames Smart wqe->fcp_tsend.payload_offset_len = 0; 1962d613b6a7SJames Smart 1963d613b6a7SJames Smart /* Word 4 */ 1964d613b6a7SJames Smart wqe->fcp_tsend.relative_offset = ctxp->offset; 1965d613b6a7SJames Smart 1966d613b6a7SJames Smart /* Word 5 */ 1967d613b6a7SJames Smart 1968d613b6a7SJames Smart /* Word 6 */ 1969d613b6a7SJames Smart bf_set(wqe_ctxt_tag, &wqe->fcp_tsend.wqe_com, 1970d613b6a7SJames Smart phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]); 1971d613b6a7SJames Smart bf_set(wqe_xri_tag, &wqe->fcp_tsend.wqe_com, 1972d613b6a7SJames Smart nvmewqe->sli4_xritag); 1973d613b6a7SJames Smart 1974d613b6a7SJames Smart /* Word 7 */ 1975c6e0c925SDick Kennedy bf_set(wqe_pu, &wqe->fcp_tsend.wqe_com, 1); 1976d613b6a7SJames Smart bf_set(wqe_cmnd, &wqe->fcp_tsend.wqe_com, CMD_FCP_TSEND64_WQE); 1977d613b6a7SJames Smart 1978d613b6a7SJames Smart /* Word 8 */ 1979d613b6a7SJames Smart wqe->fcp_tsend.wqe_com.abort_tag = nvmewqe->iotag; 1980d613b6a7SJames Smart 1981d613b6a7SJames Smart /* Word 9 */ 1982d613b6a7SJames Smart bf_set(wqe_reqtag, &wqe->fcp_tsend.wqe_com, nvmewqe->iotag); 1983d613b6a7SJames Smart bf_set(wqe_rcvoxid, &wqe->fcp_tsend.wqe_com, ctxp->oxid); 1984d613b6a7SJames Smart 1985d613b6a7SJames Smart /* Word 10 */ 1986d613b6a7SJames Smart bf_set(wqe_nvme, &wqe->fcp_tsend.wqe_com, 1); 1987d613b6a7SJames Smart bf_set(wqe_dbde, &wqe->fcp_tsend.wqe_com, 1); 1988d613b6a7SJames Smart bf_set(wqe_iod, &wqe->fcp_tsend.wqe_com, LPFC_WQE_IOD_WRITE); 1989d613b6a7SJames Smart bf_set(wqe_lenloc, &wqe->fcp_tsend.wqe_com, 1990d613b6a7SJames Smart LPFC_WQE_LENLOC_WORD12); 1991d613b6a7SJames Smart bf_set(wqe_ebde_cnt, &wqe->fcp_tsend.wqe_com, 0); 1992d613b6a7SJames Smart bf_set(wqe_xc, &wqe->fcp_tsend.wqe_com, xc); 1993d613b6a7SJames Smart bf_set(wqe_nvme, &wqe->fcp_tsend.wqe_com, 1); 1994d613b6a7SJames Smart if (phba->cfg_nvme_oas) 1995d613b6a7SJames Smart bf_set(wqe_oas, &wqe->fcp_tsend.wqe_com, 1); 1996d613b6a7SJames Smart 1997d613b6a7SJames Smart /* Word 11 */ 1998d613b6a7SJames Smart bf_set(wqe_cqid, &wqe->fcp_tsend.wqe_com, 1999d613b6a7SJames Smart LPFC_WQE_CQ_ID_DEFAULT); 2000d613b6a7SJames Smart bf_set(wqe_cmd_type, &wqe->fcp_tsend.wqe_com, 2001d613b6a7SJames Smart FCP_COMMAND_TSEND); 2002d613b6a7SJames Smart 2003d613b6a7SJames Smart /* Word 12 */ 2004d613b6a7SJames Smart wqe->fcp_tsend.fcp_data_len = rsp->transfer_length; 2005d613b6a7SJames Smart 2006d613b6a7SJames Smart /* Setup 2 SKIP SGEs */ 2007d613b6a7SJames Smart sgl->addr_hi = 0; 2008d613b6a7SJames Smart sgl->addr_lo = 0; 2009d613b6a7SJames Smart sgl->word2 = 0; 2010d613b6a7SJames Smart bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_SKIP); 2011d613b6a7SJames Smart sgl->word2 = cpu_to_le32(sgl->word2); 2012d613b6a7SJames Smart sgl->sge_len = 0; 2013d613b6a7SJames Smart sgl++; 2014d613b6a7SJames Smart sgl->addr_hi = 0; 2015d613b6a7SJames Smart sgl->addr_lo = 0; 2016d613b6a7SJames Smart sgl->word2 = 0; 2017d613b6a7SJames Smart bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_SKIP); 2018d613b6a7SJames Smart sgl->word2 = cpu_to_le32(sgl->word2); 2019d613b6a7SJames Smart sgl->sge_len = 0; 2020d613b6a7SJames Smart sgl++; 2021d613b6a7SJames Smart if (rsp->op == NVMET_FCOP_READDATA_RSP) { 2022d613b6a7SJames Smart atomic_inc(&tgtp->xmt_fcp_read_rsp); 2023d613b6a7SJames Smart bf_set(wqe_ar, &wqe->fcp_tsend.wqe_com, 1); 2024d613b6a7SJames Smart if ((ndlp->nlp_flag & NLP_SUPPRESS_RSP) && 2025d613b6a7SJames Smart (rsp->rsplen == 12)) { 2026d613b6a7SJames Smart bf_set(wqe_sup, &wqe->fcp_tsend.wqe_com, 1); 2027d613b6a7SJames Smart bf_set(wqe_wqes, &wqe->fcp_tsend.wqe_com, 0); 2028d613b6a7SJames Smart bf_set(wqe_irsp, &wqe->fcp_tsend.wqe_com, 0); 2029d613b6a7SJames Smart bf_set(wqe_irsplen, &wqe->fcp_tsend.wqe_com, 0); 2030d613b6a7SJames Smart } else { 2031d613b6a7SJames Smart bf_set(wqe_sup, &wqe->fcp_tsend.wqe_com, 0); 2032d613b6a7SJames Smart bf_set(wqe_wqes, &wqe->fcp_tsend.wqe_com, 1); 2033d613b6a7SJames Smart bf_set(wqe_irsp, &wqe->fcp_tsend.wqe_com, 1); 2034d613b6a7SJames Smart bf_set(wqe_irsplen, &wqe->fcp_tsend.wqe_com, 2035d613b6a7SJames Smart ((rsp->rsplen >> 2) - 1)); 2036d613b6a7SJames Smart memcpy(&wqe->words[16], rsp->rspaddr, 2037d613b6a7SJames Smart rsp->rsplen); 2038d613b6a7SJames Smart } 2039d613b6a7SJames Smart } else { 2040d613b6a7SJames Smart atomic_inc(&tgtp->xmt_fcp_read); 2041d613b6a7SJames Smart 2042d613b6a7SJames Smart bf_set(wqe_sup, &wqe->fcp_tsend.wqe_com, 0); 2043d613b6a7SJames Smart bf_set(wqe_wqes, &wqe->fcp_tsend.wqe_com, 0); 2044d613b6a7SJames Smart bf_set(wqe_irsp, &wqe->fcp_tsend.wqe_com, 0); 2045d613b6a7SJames Smart bf_set(wqe_ar, &wqe->fcp_tsend.wqe_com, 0); 2046d613b6a7SJames Smart bf_set(wqe_irsplen, &wqe->fcp_tsend.wqe_com, 0); 2047d613b6a7SJames Smart } 2048d613b6a7SJames Smart break; 2049d613b6a7SJames Smart 2050d613b6a7SJames Smart case NVMET_FCOP_WRITEDATA: 2051d613b6a7SJames Smart /* Words 0 - 2 : The first sg segment */ 2052771db5c0SRomain Perier txrdy = dma_pool_alloc(phba->txrdy_payload_pool, 2053d613b6a7SJames Smart GFP_KERNEL, &physaddr); 2054d613b6a7SJames Smart if (!txrdy) { 2055d613b6a7SJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR, 2056d613b6a7SJames Smart "6041 Bad txrdy buffer: oxid x%x\n", 2057d613b6a7SJames Smart ctxp->oxid); 2058d613b6a7SJames Smart return NULL; 2059d613b6a7SJames Smart } 2060d613b6a7SJames Smart ctxp->txrdy = txrdy; 2061d613b6a7SJames Smart ctxp->txrdy_phys = physaddr; 2062d613b6a7SJames Smart wqe->fcp_treceive.bde.tus.f.bdeFlags = BUFF_TYPE_BDE_64; 2063d613b6a7SJames Smart wqe->fcp_treceive.bde.tus.f.bdeSize = TXRDY_PAYLOAD_LEN; 2064d613b6a7SJames Smart wqe->fcp_treceive.bde.addrLow = 2065d613b6a7SJames Smart cpu_to_le32(putPaddrLow(physaddr)); 2066d613b6a7SJames Smart wqe->fcp_treceive.bde.addrHigh = 2067d613b6a7SJames Smart cpu_to_le32(putPaddrHigh(physaddr)); 2068d613b6a7SJames Smart 2069d613b6a7SJames Smart /* Word 3 */ 2070d613b6a7SJames Smart wqe->fcp_treceive.payload_offset_len = TXRDY_PAYLOAD_LEN; 2071d613b6a7SJames Smart 2072d613b6a7SJames Smart /* Word 4 */ 2073d613b6a7SJames Smart wqe->fcp_treceive.relative_offset = ctxp->offset; 2074d613b6a7SJames Smart 2075d613b6a7SJames Smart /* Word 5 */ 2076d613b6a7SJames Smart 2077d613b6a7SJames Smart /* Word 6 */ 2078d613b6a7SJames Smart bf_set(wqe_ctxt_tag, &wqe->fcp_treceive.wqe_com, 2079d613b6a7SJames Smart phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]); 2080d613b6a7SJames Smart bf_set(wqe_xri_tag, &wqe->fcp_treceive.wqe_com, 2081d613b6a7SJames Smart nvmewqe->sli4_xritag); 2082d613b6a7SJames Smart 2083d613b6a7SJames Smart /* Word 7 */ 2084c6e0c925SDick Kennedy bf_set(wqe_pu, &wqe->fcp_treceive.wqe_com, 1); 2085d613b6a7SJames Smart bf_set(wqe_ar, &wqe->fcp_treceive.wqe_com, 0); 2086d613b6a7SJames Smart bf_set(wqe_cmnd, &wqe->fcp_treceive.wqe_com, 2087d613b6a7SJames Smart CMD_FCP_TRECEIVE64_WQE); 2088d613b6a7SJames Smart 2089d613b6a7SJames Smart /* Word 8 */ 2090d613b6a7SJames Smart wqe->fcp_treceive.wqe_com.abort_tag = nvmewqe->iotag; 2091d613b6a7SJames Smart 2092d613b6a7SJames Smart /* Word 9 */ 2093d613b6a7SJames Smart bf_set(wqe_reqtag, &wqe->fcp_treceive.wqe_com, nvmewqe->iotag); 2094d613b6a7SJames Smart bf_set(wqe_rcvoxid, &wqe->fcp_treceive.wqe_com, ctxp->oxid); 2095d613b6a7SJames Smart 2096d613b6a7SJames Smart /* Word 10 */ 2097d613b6a7SJames Smart bf_set(wqe_nvme, &wqe->fcp_treceive.wqe_com, 1); 2098d613b6a7SJames Smart bf_set(wqe_dbde, &wqe->fcp_treceive.wqe_com, 1); 2099d613b6a7SJames Smart bf_set(wqe_iod, &wqe->fcp_treceive.wqe_com, LPFC_WQE_IOD_READ); 2100d613b6a7SJames Smart bf_set(wqe_lenloc, &wqe->fcp_treceive.wqe_com, 2101d613b6a7SJames Smart LPFC_WQE_LENLOC_WORD12); 2102d613b6a7SJames Smart bf_set(wqe_xc, &wqe->fcp_treceive.wqe_com, xc); 2103d613b6a7SJames Smart bf_set(wqe_wqes, &wqe->fcp_treceive.wqe_com, 0); 2104d613b6a7SJames Smart bf_set(wqe_irsp, &wqe->fcp_treceive.wqe_com, 0); 2105d613b6a7SJames Smart bf_set(wqe_irsplen, &wqe->fcp_treceive.wqe_com, 0); 2106d613b6a7SJames Smart bf_set(wqe_nvme, &wqe->fcp_treceive.wqe_com, 1); 2107d613b6a7SJames Smart if (phba->cfg_nvme_oas) 2108d613b6a7SJames Smart bf_set(wqe_oas, &wqe->fcp_treceive.wqe_com, 1); 2109d613b6a7SJames Smart 2110d613b6a7SJames Smart /* Word 11 */ 2111d613b6a7SJames Smart bf_set(wqe_cqid, &wqe->fcp_treceive.wqe_com, 2112d613b6a7SJames Smart LPFC_WQE_CQ_ID_DEFAULT); 2113d613b6a7SJames Smart bf_set(wqe_cmd_type, &wqe->fcp_treceive.wqe_com, 2114d613b6a7SJames Smart FCP_COMMAND_TRECEIVE); 2115d613b6a7SJames Smart bf_set(wqe_sup, &wqe->fcp_tsend.wqe_com, 0); 2116d613b6a7SJames Smart 2117d613b6a7SJames Smart /* Word 12 */ 2118d613b6a7SJames Smart wqe->fcp_tsend.fcp_data_len = rsp->transfer_length; 2119d613b6a7SJames Smart 2120d613b6a7SJames Smart /* Setup 1 TXRDY and 1 SKIP SGE */ 2121d613b6a7SJames Smart txrdy[0] = 0; 2122d613b6a7SJames Smart txrdy[1] = cpu_to_be32(rsp->transfer_length); 2123d613b6a7SJames Smart txrdy[2] = 0; 2124d613b6a7SJames Smart 2125d613b6a7SJames Smart sgl->addr_hi = putPaddrHigh(physaddr); 2126d613b6a7SJames Smart sgl->addr_lo = putPaddrLow(physaddr); 2127d613b6a7SJames Smart sgl->word2 = 0; 2128d613b6a7SJames Smart bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_DATA); 2129d613b6a7SJames Smart sgl->word2 = cpu_to_le32(sgl->word2); 2130d613b6a7SJames Smart sgl->sge_len = cpu_to_le32(TXRDY_PAYLOAD_LEN); 2131d613b6a7SJames Smart sgl++; 2132d613b6a7SJames Smart sgl->addr_hi = 0; 2133d613b6a7SJames Smart sgl->addr_lo = 0; 2134d613b6a7SJames Smart sgl->word2 = 0; 2135d613b6a7SJames Smart bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_SKIP); 2136d613b6a7SJames Smart sgl->word2 = cpu_to_le32(sgl->word2); 2137d613b6a7SJames Smart sgl->sge_len = 0; 2138d613b6a7SJames Smart sgl++; 2139d613b6a7SJames Smart atomic_inc(&tgtp->xmt_fcp_write); 2140d613b6a7SJames Smart break; 2141d613b6a7SJames Smart 2142d613b6a7SJames Smart case NVMET_FCOP_RSP: 2143d613b6a7SJames Smart /* Words 0 - 2 */ 2144d613b6a7SJames Smart physaddr = rsp->rspdma; 2145d613b6a7SJames Smart wqe->fcp_trsp.bde.tus.f.bdeFlags = BUFF_TYPE_BDE_64; 2146d613b6a7SJames Smart wqe->fcp_trsp.bde.tus.f.bdeSize = rsp->rsplen; 2147d613b6a7SJames Smart wqe->fcp_trsp.bde.addrLow = 2148d613b6a7SJames Smart cpu_to_le32(putPaddrLow(physaddr)); 2149d613b6a7SJames Smart wqe->fcp_trsp.bde.addrHigh = 2150d613b6a7SJames Smart cpu_to_le32(putPaddrHigh(physaddr)); 2151d613b6a7SJames Smart 2152d613b6a7SJames Smart /* Word 3 */ 2153d613b6a7SJames Smart wqe->fcp_trsp.response_len = rsp->rsplen; 2154d613b6a7SJames Smart 2155d613b6a7SJames Smart /* Word 4 */ 2156d613b6a7SJames Smart wqe->fcp_trsp.rsvd_4_5[0] = 0; 2157d613b6a7SJames Smart 2158d613b6a7SJames Smart 2159d613b6a7SJames Smart /* Word 5 */ 2160d613b6a7SJames Smart 2161d613b6a7SJames Smart /* Word 6 */ 2162d613b6a7SJames Smart bf_set(wqe_ctxt_tag, &wqe->fcp_trsp.wqe_com, 2163d613b6a7SJames Smart phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]); 2164d613b6a7SJames Smart bf_set(wqe_xri_tag, &wqe->fcp_trsp.wqe_com, 2165d613b6a7SJames Smart nvmewqe->sli4_xritag); 2166d613b6a7SJames Smart 2167d613b6a7SJames Smart /* Word 7 */ 2168c6e0c925SDick Kennedy bf_set(wqe_pu, &wqe->fcp_trsp.wqe_com, 0); 2169d613b6a7SJames Smart bf_set(wqe_ag, &wqe->fcp_trsp.wqe_com, 1); 2170d613b6a7SJames Smart bf_set(wqe_cmnd, &wqe->fcp_trsp.wqe_com, CMD_FCP_TRSP64_WQE); 2171d613b6a7SJames Smart 2172d613b6a7SJames Smart /* Word 8 */ 2173d613b6a7SJames Smart wqe->fcp_trsp.wqe_com.abort_tag = nvmewqe->iotag; 2174d613b6a7SJames Smart 2175d613b6a7SJames Smart /* Word 9 */ 2176d613b6a7SJames Smart bf_set(wqe_reqtag, &wqe->fcp_trsp.wqe_com, nvmewqe->iotag); 2177d613b6a7SJames Smart bf_set(wqe_rcvoxid, &wqe->fcp_trsp.wqe_com, ctxp->oxid); 2178d613b6a7SJames Smart 2179d613b6a7SJames Smart /* Word 10 */ 2180d613b6a7SJames Smart bf_set(wqe_nvme, &wqe->fcp_trsp.wqe_com, 1); 2181d613b6a7SJames Smart bf_set(wqe_dbde, &wqe->fcp_trsp.wqe_com, 0); 2182d613b6a7SJames Smart bf_set(wqe_iod, &wqe->fcp_trsp.wqe_com, LPFC_WQE_IOD_WRITE); 2183d613b6a7SJames Smart bf_set(wqe_lenloc, &wqe->fcp_trsp.wqe_com, 2184d613b6a7SJames Smart LPFC_WQE_LENLOC_WORD3); 2185d613b6a7SJames Smart bf_set(wqe_xc, &wqe->fcp_trsp.wqe_com, xc); 2186d613b6a7SJames Smart bf_set(wqe_nvme, &wqe->fcp_trsp.wqe_com, 1); 2187d613b6a7SJames Smart if (phba->cfg_nvme_oas) 2188d613b6a7SJames Smart bf_set(wqe_oas, &wqe->fcp_trsp.wqe_com, 1); 2189d613b6a7SJames Smart 2190d613b6a7SJames Smart /* Word 11 */ 2191d613b6a7SJames Smart bf_set(wqe_cqid, &wqe->fcp_trsp.wqe_com, 2192d613b6a7SJames Smart LPFC_WQE_CQ_ID_DEFAULT); 2193d613b6a7SJames Smart bf_set(wqe_cmd_type, &wqe->fcp_trsp.wqe_com, 2194d613b6a7SJames Smart FCP_COMMAND_TRSP); 2195d613b6a7SJames Smart bf_set(wqe_sup, &wqe->fcp_tsend.wqe_com, 0); 2196d613b6a7SJames Smart 2197d613b6a7SJames Smart if (rsp->rsplen == LPFC_NVMET_SUCCESS_LEN) { 2198d613b6a7SJames Smart /* Good response - all zero's on wire */ 2199d613b6a7SJames Smart bf_set(wqe_wqes, &wqe->fcp_trsp.wqe_com, 0); 2200d613b6a7SJames Smart bf_set(wqe_irsp, &wqe->fcp_trsp.wqe_com, 0); 2201d613b6a7SJames Smart bf_set(wqe_irsplen, &wqe->fcp_trsp.wqe_com, 0); 2202d613b6a7SJames Smart } else { 2203d613b6a7SJames Smart bf_set(wqe_wqes, &wqe->fcp_trsp.wqe_com, 1); 2204d613b6a7SJames Smart bf_set(wqe_irsp, &wqe->fcp_trsp.wqe_com, 1); 2205d613b6a7SJames Smart bf_set(wqe_irsplen, &wqe->fcp_trsp.wqe_com, 2206d613b6a7SJames Smart ((rsp->rsplen >> 2) - 1)); 2207d613b6a7SJames Smart memcpy(&wqe->words[16], rsp->rspaddr, rsp->rsplen); 2208d613b6a7SJames Smart } 2209d613b6a7SJames Smart 2210d613b6a7SJames Smart /* Use rspbuf, NOT sg list */ 2211d613b6a7SJames Smart rsp->sg_cnt = 0; 2212d613b6a7SJames Smart sgl->word2 = 0; 2213d613b6a7SJames Smart atomic_inc(&tgtp->xmt_fcp_rsp); 2214d613b6a7SJames Smart break; 2215d613b6a7SJames Smart 2216d613b6a7SJames Smart default: 2217d613b6a7SJames Smart lpfc_printf_log(phba, KERN_INFO, LOG_NVME_IOERR, 2218d613b6a7SJames Smart "6064 Unknown Rsp Op %d\n", 2219d613b6a7SJames Smart rsp->op); 2220d613b6a7SJames Smart return NULL; 2221d613b6a7SJames Smart } 2222d613b6a7SJames Smart 2223d613b6a7SJames Smart nvmewqe->retry = 1; 2224d613b6a7SJames Smart nvmewqe->vport = phba->pport; 2225d613b6a7SJames Smart nvmewqe->drvrTimeout = (phba->fc_ratov * 3) + LPFC_DRVR_TIMEOUT; 2226d613b6a7SJames Smart nvmewqe->context1 = ndlp; 2227d613b6a7SJames Smart 2228d613b6a7SJames Smart for (i = 0; i < rsp->sg_cnt; i++) { 2229d613b6a7SJames Smart sgel = &rsp->sg[i]; 2230d613b6a7SJames Smart physaddr = sg_dma_address(sgel); 2231d613b6a7SJames Smart cnt = sg_dma_len(sgel); 2232d613b6a7SJames Smart sgl->addr_hi = putPaddrHigh(physaddr); 2233d613b6a7SJames Smart sgl->addr_lo = putPaddrLow(physaddr); 2234d613b6a7SJames Smart sgl->word2 = 0; 2235d613b6a7SJames Smart bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_DATA); 2236d613b6a7SJames Smart bf_set(lpfc_sli4_sge_offset, sgl, ctxp->offset); 2237d613b6a7SJames Smart if ((i+1) == rsp->sg_cnt) 2238d613b6a7SJames Smart bf_set(lpfc_sli4_sge_last, sgl, 1); 2239d613b6a7SJames Smart sgl->word2 = cpu_to_le32(sgl->word2); 2240d613b6a7SJames Smart sgl->sge_len = cpu_to_le32(cnt); 2241d613b6a7SJames Smart sgl++; 2242d613b6a7SJames Smart ctxp->offset += cnt; 2243d613b6a7SJames Smart } 2244ce1b591cSJames Smart ctxp->state = LPFC_NVMET_STE_DATA; 2245ce1b591cSJames Smart ctxp->entry_cnt++; 2246d613b6a7SJames Smart return nvmewqe; 2247d613b6a7SJames Smart } 2248d613b6a7SJames Smart 2249d613b6a7SJames Smart /** 2250d613b6a7SJames Smart * lpfc_nvmet_sol_fcp_abort_cmp - Completion handler for ABTS 2251d613b6a7SJames Smart * @phba: Pointer to HBA context object. 2252d613b6a7SJames Smart * @cmdwqe: Pointer to driver command WQE object. 2253d613b6a7SJames Smart * @wcqe: Pointer to driver response CQE object. 2254d613b6a7SJames Smart * 2255d613b6a7SJames Smart * The function is called from SLI ring event handler with no 2256d613b6a7SJames Smart * lock held. This function is the completion handler for NVME ABTS for FCP cmds 2257d613b6a7SJames Smart * The function frees memory resources used for the NVME commands. 2258d613b6a7SJames Smart **/ 2259d613b6a7SJames Smart static void 2260d613b6a7SJames Smart lpfc_nvmet_sol_fcp_abort_cmp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdwqe, 2261d613b6a7SJames Smart struct lpfc_wcqe_complete *wcqe) 2262d613b6a7SJames Smart { 2263d613b6a7SJames Smart struct lpfc_nvmet_rcv_ctx *ctxp; 2264d613b6a7SJames Smart struct lpfc_nvmet_tgtport *tgtp; 2265d613b6a7SJames Smart uint32_t status, result; 226619b58d94SJames Smart unsigned long flags; 226719b58d94SJames Smart bool released = false; 2268d613b6a7SJames Smart 2269d613b6a7SJames Smart ctxp = cmdwqe->context2; 2270d613b6a7SJames Smart status = bf_get(lpfc_wcqe_c_status, wcqe); 2271d613b6a7SJames Smart result = wcqe->parameter; 2272d613b6a7SJames Smart 2273d613b6a7SJames Smart tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 2274547077a4SJames Smart if (ctxp->flag & LPFC_NVMET_ABORT_OP) 2275547077a4SJames Smart atomic_inc(&tgtp->xmt_fcp_abort_cmpl); 2276d613b6a7SJames Smart 2277d613b6a7SJames Smart ctxp->state = LPFC_NVMET_STE_DONE; 227886c67379SJames Smart 227986c67379SJames Smart /* Check if we already received a free context call 228086c67379SJames Smart * and we have completed processing an abort situation. 228186c67379SJames Smart */ 228219b58d94SJames Smart spin_lock_irqsave(&ctxp->ctxlock, flags); 228386c67379SJames Smart if ((ctxp->flag & LPFC_NVMET_CTX_RLS) && 228486c67379SJames Smart !(ctxp->flag & LPFC_NVMET_XBUSY)) { 228586c67379SJames Smart list_del(&ctxp->list); 228619b58d94SJames Smart released = true; 228786c67379SJames Smart } 228819b58d94SJames Smart ctxp->flag &= ~LPFC_NVMET_ABORT_OP; 228919b58d94SJames Smart spin_unlock_irqrestore(&ctxp->ctxlock, flags); 2290547077a4SJames Smart atomic_inc(&tgtp->xmt_abort_rsp); 229119b58d94SJames Smart 229286c67379SJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_ABTS, 229386c67379SJames Smart "6165 ABORT cmpl: xri x%x flg x%x (%d) " 229486c67379SJames Smart "WCQE: %08x %08x %08x %08x\n", 229586c67379SJames Smart ctxp->oxid, ctxp->flag, released, 229686c67379SJames Smart wcqe->word0, wcqe->total_data_placed, 229786c67379SJames Smart result, wcqe->word3); 229886c67379SJames Smart 22996c621a22SJames Smart cmdwqe->context2 = NULL; 23006c621a22SJames Smart cmdwqe->context3 = NULL; 230119b58d94SJames Smart /* 230219b58d94SJames Smart * if transport has released ctx, then can reuse it. Otherwise, 230319b58d94SJames Smart * will be recycled by transport release call. 230419b58d94SJames Smart */ 230519b58d94SJames Smart if (released) 23066c621a22SJames Smart lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf); 2307d613b6a7SJames Smart 23086c621a22SJames Smart /* This is the iocbq for the abort, not the command */ 2309d613b6a7SJames Smart lpfc_sli_release_iocbq(phba, cmdwqe); 231086c67379SJames Smart 231186c67379SJames Smart /* Since iaab/iaar are NOT set, there is no work left. 231286c67379SJames Smart * For LPFC_NVMET_XBUSY, lpfc_sli4_nvmet_xri_aborted 231386c67379SJames Smart * should have been called already. 231486c67379SJames Smart */ 2315d613b6a7SJames Smart } 2316d613b6a7SJames Smart 2317d613b6a7SJames Smart /** 231886c67379SJames Smart * lpfc_nvmet_unsol_fcp_abort_cmp - Completion handler for ABTS 2319d613b6a7SJames Smart * @phba: Pointer to HBA context object. 2320d613b6a7SJames Smart * @cmdwqe: Pointer to driver command WQE object. 2321d613b6a7SJames Smart * @wcqe: Pointer to driver response CQE object. 2322d613b6a7SJames Smart * 2323d613b6a7SJames Smart * The function is called from SLI ring event handler with no 2324d613b6a7SJames Smart * lock held. This function is the completion handler for NVME ABTS for FCP cmds 2325d613b6a7SJames Smart * The function frees memory resources used for the NVME commands. 2326d613b6a7SJames Smart **/ 2327d613b6a7SJames Smart static void 232886c67379SJames Smart lpfc_nvmet_unsol_fcp_abort_cmp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdwqe, 2329d613b6a7SJames Smart struct lpfc_wcqe_complete *wcqe) 2330d613b6a7SJames Smart { 2331d613b6a7SJames Smart struct lpfc_nvmet_rcv_ctx *ctxp; 2332d613b6a7SJames Smart struct lpfc_nvmet_tgtport *tgtp; 233319b58d94SJames Smart unsigned long flags; 2334d613b6a7SJames Smart uint32_t status, result; 233519b58d94SJames Smart bool released = false; 2336d613b6a7SJames Smart 2337d613b6a7SJames Smart ctxp = cmdwqe->context2; 2338d613b6a7SJames Smart status = bf_get(lpfc_wcqe_c_status, wcqe); 2339d613b6a7SJames Smart result = wcqe->parameter; 2340d613b6a7SJames Smart 234186c67379SJames Smart if (!ctxp) { 234286c67379SJames Smart /* if context is clear, related io alrady complete */ 2343d613b6a7SJames Smart lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS, 234486c67379SJames Smart "6070 ABTS cmpl: WCQE: %08x %08x %08x %08x\n", 234586c67379SJames Smart wcqe->word0, wcqe->total_data_placed, 2346d613b6a7SJames Smart result, wcqe->word3); 234786c67379SJames Smart return; 234886c67379SJames Smart } 2349d613b6a7SJames Smart 235078e1d200SJames Smart tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 235178e1d200SJames Smart if (ctxp->flag & LPFC_NVMET_ABORT_OP) 235278e1d200SJames Smart atomic_inc(&tgtp->xmt_fcp_abort_cmpl); 235378e1d200SJames Smart 2354d613b6a7SJames Smart /* Sanity check */ 2355d613b6a7SJames Smart if (ctxp->state != LPFC_NVMET_STE_ABORT) { 2356d613b6a7SJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_ABTS, 235786c67379SJames Smart "6112 ABTS Wrong state:%d oxid x%x\n", 2358d613b6a7SJames Smart ctxp->state, ctxp->oxid); 2359d613b6a7SJames Smart } 236086c67379SJames Smart 236186c67379SJames Smart /* Check if we already received a free context call 236286c67379SJames Smart * and we have completed processing an abort situation. 236386c67379SJames Smart */ 2364d613b6a7SJames Smart ctxp->state = LPFC_NVMET_STE_DONE; 236519b58d94SJames Smart spin_lock_irqsave(&ctxp->ctxlock, flags); 236686c67379SJames Smart if ((ctxp->flag & LPFC_NVMET_CTX_RLS) && 236786c67379SJames Smart !(ctxp->flag & LPFC_NVMET_XBUSY)) { 236886c67379SJames Smart list_del(&ctxp->list); 236919b58d94SJames Smart released = true; 237086c67379SJames Smart } 237119b58d94SJames Smart ctxp->flag &= ~LPFC_NVMET_ABORT_OP; 237219b58d94SJames Smart spin_unlock_irqrestore(&ctxp->ctxlock, flags); 2373547077a4SJames Smart atomic_inc(&tgtp->xmt_abort_rsp); 237419b58d94SJames Smart 237586c67379SJames Smart lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS, 237686c67379SJames Smart "6316 ABTS cmpl xri x%x flg x%x (%x) " 237786c67379SJames Smart "WCQE: %08x %08x %08x %08x\n", 237886c67379SJames Smart ctxp->oxid, ctxp->flag, released, 237986c67379SJames Smart wcqe->word0, wcqe->total_data_placed, 238086c67379SJames Smart result, wcqe->word3); 23816c621a22SJames Smart 23826c621a22SJames Smart cmdwqe->context2 = NULL; 23836c621a22SJames Smart cmdwqe->context3 = NULL; 238419b58d94SJames Smart /* 238519b58d94SJames Smart * if transport has released ctx, then can reuse it. Otherwise, 238619b58d94SJames Smart * will be recycled by transport release call. 238719b58d94SJames Smart */ 238819b58d94SJames Smart if (released) 23896c621a22SJames Smart lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf); 239086c67379SJames Smart 239186c67379SJames Smart /* Since iaab/iaar are NOT set, there is no work left. 239286c67379SJames Smart * For LPFC_NVMET_XBUSY, lpfc_sli4_nvmet_xri_aborted 239386c67379SJames Smart * should have been called already. 239486c67379SJames Smart */ 2395d613b6a7SJames Smart } 2396d613b6a7SJames Smart 2397d613b6a7SJames Smart /** 2398d613b6a7SJames Smart * lpfc_nvmet_xmt_ls_abort_cmp - Completion handler for ABTS 2399d613b6a7SJames Smart * @phba: Pointer to HBA context object. 2400d613b6a7SJames Smart * @cmdwqe: Pointer to driver command WQE object. 2401d613b6a7SJames Smart * @wcqe: Pointer to driver response CQE object. 2402d613b6a7SJames Smart * 2403d613b6a7SJames Smart * The function is called from SLI ring event handler with no 2404d613b6a7SJames Smart * lock held. This function is the completion handler for NVME ABTS for LS cmds 2405d613b6a7SJames Smart * The function frees memory resources used for the NVME commands. 2406d613b6a7SJames Smart **/ 2407d613b6a7SJames Smart static void 2408d613b6a7SJames Smart lpfc_nvmet_xmt_ls_abort_cmp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdwqe, 2409d613b6a7SJames Smart struct lpfc_wcqe_complete *wcqe) 2410d613b6a7SJames Smart { 2411d613b6a7SJames Smart struct lpfc_nvmet_rcv_ctx *ctxp; 2412d613b6a7SJames Smart struct lpfc_nvmet_tgtport *tgtp; 2413d613b6a7SJames Smart uint32_t status, result; 2414d613b6a7SJames Smart 2415d613b6a7SJames Smart ctxp = cmdwqe->context2; 2416d613b6a7SJames Smart status = bf_get(lpfc_wcqe_c_status, wcqe); 2417d613b6a7SJames Smart result = wcqe->parameter; 2418d613b6a7SJames Smart 2419d613b6a7SJames Smart tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 2420547077a4SJames Smart atomic_inc(&tgtp->xmt_ls_abort_cmpl); 2421d613b6a7SJames Smart 2422d613b6a7SJames Smart lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS, 2423d613b6a7SJames Smart "6083 Abort cmpl: ctx %p WCQE:%08x %08x %08x %08x\n", 2424d613b6a7SJames Smart ctxp, wcqe->word0, wcqe->total_data_placed, 2425d613b6a7SJames Smart result, wcqe->word3); 2426d613b6a7SJames Smart 2427ce1b591cSJames Smart if (!ctxp) { 2428ce1b591cSJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_ABTS, 2429ce1b591cSJames Smart "6415 NVMET LS Abort No ctx: WCQE: " 2430ce1b591cSJames Smart "%08x %08x %08x %08x\n", 2431ce1b591cSJames Smart wcqe->word0, wcqe->total_data_placed, 2432ce1b591cSJames Smart result, wcqe->word3); 2433ce1b591cSJames Smart 2434ce1b591cSJames Smart lpfc_sli_release_iocbq(phba, cmdwqe); 2435ce1b591cSJames Smart return; 2436ce1b591cSJames Smart } 2437ce1b591cSJames Smart 2438ce1b591cSJames Smart if (ctxp->state != LPFC_NVMET_STE_LS_ABORT) { 2439ce1b591cSJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR, 2440ce1b591cSJames Smart "6416 NVMET LS abort cmpl state mismatch: " 2441ce1b591cSJames Smart "oxid x%x: %d %d\n", 2442ce1b591cSJames Smart ctxp->oxid, ctxp->state, ctxp->entry_cnt); 2443ce1b591cSJames Smart } 2444ce1b591cSJames Smart 2445d613b6a7SJames Smart cmdwqe->context2 = NULL; 2446d613b6a7SJames Smart cmdwqe->context3 = NULL; 2447d613b6a7SJames Smart lpfc_sli_release_iocbq(phba, cmdwqe); 2448d613b6a7SJames Smart kfree(ctxp); 2449d613b6a7SJames Smart } 2450d613b6a7SJames Smart 2451d613b6a7SJames Smart static int 2452d613b6a7SJames Smart lpfc_nvmet_unsol_issue_abort(struct lpfc_hba *phba, 2453d613b6a7SJames Smart struct lpfc_nvmet_rcv_ctx *ctxp, 2454d613b6a7SJames Smart uint32_t sid, uint16_t xri) 2455d613b6a7SJames Smart { 2456d613b6a7SJames Smart struct lpfc_nvmet_tgtport *tgtp; 2457d613b6a7SJames Smart struct lpfc_iocbq *abts_wqeq; 2458d613b6a7SJames Smart union lpfc_wqe *wqe_abts; 2459d613b6a7SJames Smart struct lpfc_nodelist *ndlp; 2460d613b6a7SJames Smart 2461d613b6a7SJames Smart lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS, 246286c67379SJames Smart "6067 ABTS: sid %x xri x%x/x%x\n", 2463318083adSJames Smart sid, xri, ctxp->wqeq->sli4_xritag); 2464d613b6a7SJames Smart 2465d613b6a7SJames Smart tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 2466d613b6a7SJames Smart 2467d613b6a7SJames Smart ndlp = lpfc_findnode_did(phba->pport, sid); 2468d613b6a7SJames Smart if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) || 2469d613b6a7SJames Smart ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && 2470d613b6a7SJames Smart (ndlp->nlp_state != NLP_STE_MAPPED_NODE))) { 2471d613b6a7SJames Smart atomic_inc(&tgtp->xmt_abort_rsp_error); 2472ce1b591cSJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_ABTS, 2473d613b6a7SJames Smart "6134 Drop ABTS - wrong NDLP state x%x.\n", 2474b5ccc7d6SJames Smart (ndlp) ? ndlp->nlp_state : NLP_STE_MAX_STATE); 2475d613b6a7SJames Smart 2476d613b6a7SJames Smart /* No failure to an ABTS request. */ 2477d613b6a7SJames Smart return 0; 2478d613b6a7SJames Smart } 2479d613b6a7SJames Smart 2480d613b6a7SJames Smart abts_wqeq = ctxp->wqeq; 2481d613b6a7SJames Smart wqe_abts = &abts_wqeq->wqe; 2482d613b6a7SJames Smart 2483d613b6a7SJames Smart /* 2484d613b6a7SJames Smart * Since we zero the whole WQE, we need to ensure we set the WQE fields 2485d613b6a7SJames Smart * that were initialized in lpfc_sli4_nvmet_alloc. 2486d613b6a7SJames Smart */ 2487d613b6a7SJames Smart memset(wqe_abts, 0, sizeof(union lpfc_wqe)); 2488d613b6a7SJames Smart 2489d613b6a7SJames Smart /* Word 5 */ 2490d613b6a7SJames Smart bf_set(wqe_dfctl, &wqe_abts->xmit_sequence.wge_ctl, 0); 2491d613b6a7SJames Smart bf_set(wqe_ls, &wqe_abts->xmit_sequence.wge_ctl, 1); 2492d613b6a7SJames Smart bf_set(wqe_la, &wqe_abts->xmit_sequence.wge_ctl, 0); 2493d613b6a7SJames Smart bf_set(wqe_rctl, &wqe_abts->xmit_sequence.wge_ctl, FC_RCTL_BA_ABTS); 2494d613b6a7SJames Smart bf_set(wqe_type, &wqe_abts->xmit_sequence.wge_ctl, FC_TYPE_BLS); 2495d613b6a7SJames Smart 2496d613b6a7SJames Smart /* Word 6 */ 2497d613b6a7SJames Smart bf_set(wqe_ctxt_tag, &wqe_abts->xmit_sequence.wqe_com, 2498d613b6a7SJames Smart phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]); 2499d613b6a7SJames Smart bf_set(wqe_xri_tag, &wqe_abts->xmit_sequence.wqe_com, 2500d613b6a7SJames Smart abts_wqeq->sli4_xritag); 2501d613b6a7SJames Smart 2502d613b6a7SJames Smart /* Word 7 */ 2503d613b6a7SJames Smart bf_set(wqe_cmnd, &wqe_abts->xmit_sequence.wqe_com, 2504d613b6a7SJames Smart CMD_XMIT_SEQUENCE64_WQE); 2505d613b6a7SJames Smart bf_set(wqe_ct, &wqe_abts->xmit_sequence.wqe_com, SLI4_CT_RPI); 2506d613b6a7SJames Smart bf_set(wqe_class, &wqe_abts->xmit_sequence.wqe_com, CLASS3); 2507d613b6a7SJames Smart bf_set(wqe_pu, &wqe_abts->xmit_sequence.wqe_com, 0); 2508d613b6a7SJames Smart 2509d613b6a7SJames Smart /* Word 8 */ 2510d613b6a7SJames Smart wqe_abts->xmit_sequence.wqe_com.abort_tag = abts_wqeq->iotag; 2511d613b6a7SJames Smart 2512d613b6a7SJames Smart /* Word 9 */ 2513d613b6a7SJames Smart bf_set(wqe_reqtag, &wqe_abts->xmit_sequence.wqe_com, abts_wqeq->iotag); 2514d613b6a7SJames Smart /* Needs to be set by caller */ 2515d613b6a7SJames Smart bf_set(wqe_rcvoxid, &wqe_abts->xmit_sequence.wqe_com, xri); 2516d613b6a7SJames Smart 2517d613b6a7SJames Smart /* Word 10 */ 2518d613b6a7SJames Smart bf_set(wqe_dbde, &wqe_abts->xmit_sequence.wqe_com, 1); 2519d613b6a7SJames Smart bf_set(wqe_iod, &wqe_abts->xmit_sequence.wqe_com, LPFC_WQE_IOD_WRITE); 2520d613b6a7SJames Smart bf_set(wqe_lenloc, &wqe_abts->xmit_sequence.wqe_com, 2521d613b6a7SJames Smart LPFC_WQE_LENLOC_WORD12); 2522d613b6a7SJames Smart bf_set(wqe_ebde_cnt, &wqe_abts->xmit_sequence.wqe_com, 0); 2523d613b6a7SJames Smart bf_set(wqe_qosd, &wqe_abts->xmit_sequence.wqe_com, 0); 2524d613b6a7SJames Smart 2525d613b6a7SJames Smart /* Word 11 */ 2526d613b6a7SJames Smart bf_set(wqe_cqid, &wqe_abts->xmit_sequence.wqe_com, 2527d613b6a7SJames Smart LPFC_WQE_CQ_ID_DEFAULT); 2528d613b6a7SJames Smart bf_set(wqe_cmd_type, &wqe_abts->xmit_sequence.wqe_com, 2529d613b6a7SJames Smart OTHER_COMMAND); 2530d613b6a7SJames Smart 2531d613b6a7SJames Smart abts_wqeq->vport = phba->pport; 2532d613b6a7SJames Smart abts_wqeq->context1 = ndlp; 2533d613b6a7SJames Smart abts_wqeq->context2 = ctxp; 2534d613b6a7SJames Smart abts_wqeq->context3 = NULL; 2535d613b6a7SJames Smart abts_wqeq->rsvd2 = 0; 2536d613b6a7SJames Smart /* hba_wqidx should already be setup from command we are aborting */ 2537d613b6a7SJames Smart abts_wqeq->iocb.ulpCommand = CMD_XMIT_SEQUENCE64_CR; 2538d613b6a7SJames Smart abts_wqeq->iocb.ulpLe = 1; 2539d613b6a7SJames Smart 2540d613b6a7SJames Smart lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS, 2541d613b6a7SJames Smart "6069 Issue ABTS to xri x%x reqtag x%x\n", 2542d613b6a7SJames Smart xri, abts_wqeq->iotag); 2543d613b6a7SJames Smart return 1; 2544d613b6a7SJames Smart } 2545d613b6a7SJames Smart 2546d613b6a7SJames Smart static int 2547d613b6a7SJames Smart lpfc_nvmet_sol_fcp_issue_abort(struct lpfc_hba *phba, 2548d613b6a7SJames Smart struct lpfc_nvmet_rcv_ctx *ctxp, 2549d613b6a7SJames Smart uint32_t sid, uint16_t xri) 2550d613b6a7SJames Smart { 2551d613b6a7SJames Smart struct lpfc_nvmet_tgtport *tgtp; 2552d613b6a7SJames Smart struct lpfc_iocbq *abts_wqeq; 2553d613b6a7SJames Smart union lpfc_wqe *abts_wqe; 2554d613b6a7SJames Smart struct lpfc_nodelist *ndlp; 2555d613b6a7SJames Smart unsigned long flags; 2556d613b6a7SJames Smart int rc; 2557d613b6a7SJames Smart 2558d613b6a7SJames Smart tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 2559d613b6a7SJames Smart if (!ctxp->wqeq) { 25606c621a22SJames Smart ctxp->wqeq = ctxp->ctxbuf->iocbq; 2561d613b6a7SJames Smart ctxp->wqeq->hba_wqidx = 0; 2562d613b6a7SJames Smart } 2563d613b6a7SJames Smart 2564d613b6a7SJames Smart ndlp = lpfc_findnode_did(phba->pport, sid); 2565d613b6a7SJames Smart if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) || 2566d613b6a7SJames Smart ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && 2567d613b6a7SJames Smart (ndlp->nlp_state != NLP_STE_MAPPED_NODE))) { 2568d613b6a7SJames Smart atomic_inc(&tgtp->xmt_abort_rsp_error); 2569ce1b591cSJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_ABTS, 257086c67379SJames Smart "6160 Drop ABORT - wrong NDLP state x%x.\n", 2571b5ccc7d6SJames Smart (ndlp) ? ndlp->nlp_state : NLP_STE_MAX_STATE); 2572d613b6a7SJames Smart 2573d613b6a7SJames Smart /* No failure to an ABTS request. */ 257486c67379SJames Smart ctxp->flag &= ~LPFC_NVMET_ABORT_OP; 2575d613b6a7SJames Smart return 0; 2576d613b6a7SJames Smart } 2577d613b6a7SJames Smart 2578d613b6a7SJames Smart /* Issue ABTS for this WQE based on iotag */ 2579d613b6a7SJames Smart ctxp->abort_wqeq = lpfc_sli_get_iocbq(phba); 2580d613b6a7SJames Smart if (!ctxp->abort_wqeq) { 2581547077a4SJames Smart atomic_inc(&tgtp->xmt_abort_rsp_error); 2582ce1b591cSJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_ABTS, 258386c67379SJames Smart "6161 ABORT failed: No wqeqs: " 2584d613b6a7SJames Smart "xri: x%x\n", ctxp->oxid); 2585d613b6a7SJames Smart /* No failure to an ABTS request. */ 258686c67379SJames Smart ctxp->flag &= ~LPFC_NVMET_ABORT_OP; 2587d613b6a7SJames Smart return 0; 2588d613b6a7SJames Smart } 2589d613b6a7SJames Smart abts_wqeq = ctxp->abort_wqeq; 2590d613b6a7SJames Smart abts_wqe = &abts_wqeq->wqe; 2591d613b6a7SJames Smart ctxp->state = LPFC_NVMET_STE_ABORT; 2592d613b6a7SJames Smart 2593d613b6a7SJames Smart /* Announce entry to new IO submit field. */ 259486c67379SJames Smart lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS, 259586c67379SJames Smart "6162 ABORT Request to rport DID x%06x " 2596d613b6a7SJames Smart "for xri x%x x%x\n", 2597d613b6a7SJames Smart ctxp->sid, ctxp->oxid, ctxp->wqeq->sli4_xritag); 2598d613b6a7SJames Smart 2599d613b6a7SJames Smart /* If the hba is getting reset, this flag is set. It is 2600d613b6a7SJames Smart * cleared when the reset is complete and rings reestablished. 2601d613b6a7SJames Smart */ 2602d613b6a7SJames Smart spin_lock_irqsave(&phba->hbalock, flags); 2603d613b6a7SJames Smart /* driver queued commands are in process of being flushed */ 2604d613b6a7SJames Smart if (phba->hba_flag & HBA_NVME_IOQ_FLUSH) { 2605d613b6a7SJames Smart spin_unlock_irqrestore(&phba->hbalock, flags); 2606547077a4SJames Smart atomic_inc(&tgtp->xmt_abort_rsp_error); 2607d613b6a7SJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME, 2608d613b6a7SJames Smart "6163 Driver in reset cleanup - flushing " 2609d613b6a7SJames Smart "NVME Req now. hba_flag x%x oxid x%x\n", 2610d613b6a7SJames Smart phba->hba_flag, ctxp->oxid); 2611d613b6a7SJames Smart lpfc_sli_release_iocbq(phba, abts_wqeq); 261286c67379SJames Smart ctxp->flag &= ~LPFC_NVMET_ABORT_OP; 2613d613b6a7SJames Smart return 0; 2614d613b6a7SJames Smart } 2615d613b6a7SJames Smart 2616d613b6a7SJames Smart /* Outstanding abort is in progress */ 2617d613b6a7SJames Smart if (abts_wqeq->iocb_flag & LPFC_DRIVER_ABORTED) { 2618d613b6a7SJames Smart spin_unlock_irqrestore(&phba->hbalock, flags); 2619547077a4SJames Smart atomic_inc(&tgtp->xmt_abort_rsp_error); 2620d613b6a7SJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME, 2621d613b6a7SJames Smart "6164 Outstanding NVME I/O Abort Request " 2622d613b6a7SJames Smart "still pending on oxid x%x\n", 2623d613b6a7SJames Smart ctxp->oxid); 2624d613b6a7SJames Smart lpfc_sli_release_iocbq(phba, abts_wqeq); 262586c67379SJames Smart ctxp->flag &= ~LPFC_NVMET_ABORT_OP; 2626d613b6a7SJames Smart return 0; 2627d613b6a7SJames Smart } 2628d613b6a7SJames Smart 2629d613b6a7SJames Smart /* Ready - mark outstanding as aborted by driver. */ 2630d613b6a7SJames Smart abts_wqeq->iocb_flag |= LPFC_DRIVER_ABORTED; 2631d613b6a7SJames Smart 2632d613b6a7SJames Smart /* WQEs are reused. Clear stale data and set key fields to 2633d613b6a7SJames Smart * zero like ia, iaab, iaar, xri_tag, and ctxt_tag. 2634d613b6a7SJames Smart */ 2635d613b6a7SJames Smart memset(abts_wqe, 0, sizeof(union lpfc_wqe)); 2636d613b6a7SJames Smart 2637d613b6a7SJames Smart /* word 3 */ 2638d613b6a7SJames Smart bf_set(abort_cmd_criteria, &abts_wqe->abort_cmd, T_XRI_TAG); 2639d613b6a7SJames Smart 2640d613b6a7SJames Smart /* word 7 */ 2641d613b6a7SJames Smart bf_set(wqe_ct, &abts_wqe->abort_cmd.wqe_com, 0); 2642d613b6a7SJames Smart bf_set(wqe_cmnd, &abts_wqe->abort_cmd.wqe_com, CMD_ABORT_XRI_CX); 2643d613b6a7SJames Smart 2644d613b6a7SJames Smart /* word 8 - tell the FW to abort the IO associated with this 2645d613b6a7SJames Smart * outstanding exchange ID. 2646d613b6a7SJames Smart */ 2647d613b6a7SJames Smart abts_wqe->abort_cmd.wqe_com.abort_tag = ctxp->wqeq->sli4_xritag; 2648d613b6a7SJames Smart 2649d613b6a7SJames Smart /* word 9 - this is the iotag for the abts_wqe completion. */ 2650d613b6a7SJames Smart bf_set(wqe_reqtag, &abts_wqe->abort_cmd.wqe_com, 2651d613b6a7SJames Smart abts_wqeq->iotag); 2652d613b6a7SJames Smart 2653d613b6a7SJames Smart /* word 10 */ 2654d613b6a7SJames Smart bf_set(wqe_qosd, &abts_wqe->abort_cmd.wqe_com, 1); 2655d613b6a7SJames Smart bf_set(wqe_lenloc, &abts_wqe->abort_cmd.wqe_com, LPFC_WQE_LENLOC_NONE); 2656d613b6a7SJames Smart 2657d613b6a7SJames Smart /* word 11 */ 2658d613b6a7SJames Smart bf_set(wqe_cmd_type, &abts_wqe->abort_cmd.wqe_com, OTHER_COMMAND); 2659d613b6a7SJames Smart bf_set(wqe_wqec, &abts_wqe->abort_cmd.wqe_com, 1); 2660d613b6a7SJames Smart bf_set(wqe_cqid, &abts_wqe->abort_cmd.wqe_com, LPFC_WQE_CQ_ID_DEFAULT); 2661d613b6a7SJames Smart 2662d613b6a7SJames Smart /* ABTS WQE must go to the same WQ as the WQE to be aborted */ 2663d613b6a7SJames Smart abts_wqeq->hba_wqidx = ctxp->wqeq->hba_wqidx; 2664d613b6a7SJames Smart abts_wqeq->wqe_cmpl = lpfc_nvmet_sol_fcp_abort_cmp; 2665d613b6a7SJames Smart abts_wqeq->iocb_cmpl = 0; 2666d613b6a7SJames Smart abts_wqeq->iocb_flag |= LPFC_IO_NVME; 2667d613b6a7SJames Smart abts_wqeq->context2 = ctxp; 26684550f9c7SJames Smart abts_wqeq->vport = phba->pport; 2669d613b6a7SJames Smart rc = lpfc_sli4_issue_wqe(phba, LPFC_FCP_RING, abts_wqeq); 2670d613b6a7SJames Smart spin_unlock_irqrestore(&phba->hbalock, flags); 2671547077a4SJames Smart if (rc == WQE_SUCCESS) { 2672547077a4SJames Smart atomic_inc(&tgtp->xmt_abort_sol); 2673d613b6a7SJames Smart return 0; 2674547077a4SJames Smart } 2675d613b6a7SJames Smart 2676547077a4SJames Smart atomic_inc(&tgtp->xmt_abort_rsp_error); 267786c67379SJames Smart ctxp->flag &= ~LPFC_NVMET_ABORT_OP; 2678d613b6a7SJames Smart lpfc_sli_release_iocbq(phba, abts_wqeq); 267986c67379SJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_ABTS, 268086c67379SJames Smart "6166 Failed ABORT issue_wqe with status x%x " 2681d613b6a7SJames Smart "for oxid x%x.\n", 2682d613b6a7SJames Smart rc, ctxp->oxid); 2683d613b6a7SJames Smart return 1; 2684d613b6a7SJames Smart } 2685d613b6a7SJames Smart 2686d613b6a7SJames Smart 2687d613b6a7SJames Smart static int 2688d613b6a7SJames Smart lpfc_nvmet_unsol_fcp_issue_abort(struct lpfc_hba *phba, 2689d613b6a7SJames Smart struct lpfc_nvmet_rcv_ctx *ctxp, 2690d613b6a7SJames Smart uint32_t sid, uint16_t xri) 2691d613b6a7SJames Smart { 2692d613b6a7SJames Smart struct lpfc_nvmet_tgtport *tgtp; 2693d613b6a7SJames Smart struct lpfc_iocbq *abts_wqeq; 2694d613b6a7SJames Smart unsigned long flags; 2695d613b6a7SJames Smart int rc; 2696d613b6a7SJames Smart 2697d613b6a7SJames Smart tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 2698d613b6a7SJames Smart if (!ctxp->wqeq) { 26996c621a22SJames Smart ctxp->wqeq = ctxp->ctxbuf->iocbq; 2700d613b6a7SJames Smart ctxp->wqeq->hba_wqidx = 0; 2701d613b6a7SJames Smart } 2702d613b6a7SJames Smart 2703ce1b591cSJames Smart if (ctxp->state == LPFC_NVMET_STE_FREE) { 2704ce1b591cSJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR, 2705ce1b591cSJames Smart "6417 NVMET ABORT ctx freed %d %d oxid x%x\n", 2706ce1b591cSJames Smart ctxp->state, ctxp->entry_cnt, ctxp->oxid); 2707ce1b591cSJames Smart rc = WQE_BUSY; 2708ce1b591cSJames Smart goto aerr; 2709ce1b591cSJames Smart } 2710ce1b591cSJames Smart ctxp->state = LPFC_NVMET_STE_ABORT; 2711ce1b591cSJames Smart ctxp->entry_cnt++; 2712d613b6a7SJames Smart rc = lpfc_nvmet_unsol_issue_abort(phba, ctxp, sid, xri); 2713d613b6a7SJames Smart if (rc == 0) 2714d613b6a7SJames Smart goto aerr; 2715d613b6a7SJames Smart 2716d613b6a7SJames Smart spin_lock_irqsave(&phba->hbalock, flags); 2717d613b6a7SJames Smart abts_wqeq = ctxp->wqeq; 271886c67379SJames Smart abts_wqeq->wqe_cmpl = lpfc_nvmet_unsol_fcp_abort_cmp; 271986c67379SJames Smart abts_wqeq->iocb_cmpl = NULL; 2720d613b6a7SJames Smart abts_wqeq->iocb_flag |= LPFC_IO_NVMET; 2721d613b6a7SJames Smart rc = lpfc_sli4_issue_wqe(phba, LPFC_FCP_RING, abts_wqeq); 2722d613b6a7SJames Smart spin_unlock_irqrestore(&phba->hbalock, flags); 2723d613b6a7SJames Smart if (rc == WQE_SUCCESS) { 2724d613b6a7SJames Smart return 0; 2725d613b6a7SJames Smart } 2726d613b6a7SJames Smart 2727d613b6a7SJames Smart aerr: 272886c67379SJames Smart ctxp->flag &= ~LPFC_NVMET_ABORT_OP; 2729d613b6a7SJames Smart atomic_inc(&tgtp->xmt_abort_rsp_error); 2730ce1b591cSJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_ABTS, 2731d613b6a7SJames Smart "6135 Failed to Issue ABTS for oxid x%x. Status x%x\n", 2732d613b6a7SJames Smart ctxp->oxid, rc); 2733d613b6a7SJames Smart return 1; 2734d613b6a7SJames Smart } 2735d613b6a7SJames Smart 2736d613b6a7SJames Smart static int 2737d613b6a7SJames Smart lpfc_nvmet_unsol_ls_issue_abort(struct lpfc_hba *phba, 2738d613b6a7SJames Smart struct lpfc_nvmet_rcv_ctx *ctxp, 2739d613b6a7SJames Smart uint32_t sid, uint16_t xri) 2740d613b6a7SJames Smart { 2741d613b6a7SJames Smart struct lpfc_nvmet_tgtport *tgtp; 2742d613b6a7SJames Smart struct lpfc_iocbq *abts_wqeq; 2743d613b6a7SJames Smart union lpfc_wqe *wqe_abts; 2744d613b6a7SJames Smart unsigned long flags; 2745d613b6a7SJames Smart int rc; 2746d613b6a7SJames Smart 2747ce1b591cSJames Smart if ((ctxp->state == LPFC_NVMET_STE_LS_RCV && ctxp->entry_cnt == 1) || 2748ce1b591cSJames Smart (ctxp->state == LPFC_NVMET_STE_LS_RSP && ctxp->entry_cnt == 2)) { 2749ce1b591cSJames Smart ctxp->state = LPFC_NVMET_STE_LS_ABORT; 2750ce1b591cSJames Smart ctxp->entry_cnt++; 2751ce1b591cSJames Smart } else { 2752ce1b591cSJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR, 2753ce1b591cSJames Smart "6418 NVMET LS abort state mismatch " 2754ce1b591cSJames Smart "IO x%x: %d %d\n", 2755ce1b591cSJames Smart ctxp->oxid, ctxp->state, ctxp->entry_cnt); 2756ce1b591cSJames Smart ctxp->state = LPFC_NVMET_STE_LS_ABORT; 2757ce1b591cSJames Smart } 2758ce1b591cSJames Smart 2759d613b6a7SJames Smart tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 2760d613b6a7SJames Smart if (!ctxp->wqeq) { 2761d613b6a7SJames Smart /* Issue ABTS for this WQE based on iotag */ 2762d613b6a7SJames Smart ctxp->wqeq = lpfc_sli_get_iocbq(phba); 2763d613b6a7SJames Smart if (!ctxp->wqeq) { 2764ce1b591cSJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_ABTS, 2765d613b6a7SJames Smart "6068 Abort failed: No wqeqs: " 2766d613b6a7SJames Smart "xri: x%x\n", xri); 2767d613b6a7SJames Smart /* No failure to an ABTS request. */ 2768d613b6a7SJames Smart kfree(ctxp); 2769d613b6a7SJames Smart return 0; 2770d613b6a7SJames Smart } 2771d613b6a7SJames Smart } 2772d613b6a7SJames Smart abts_wqeq = ctxp->wqeq; 2773d613b6a7SJames Smart wqe_abts = &abts_wqeq->wqe; 27746c621a22SJames Smart 2775ce1b591cSJames Smart if (lpfc_nvmet_unsol_issue_abort(phba, ctxp, sid, xri) == 0) { 2776ce1b591cSJames Smart rc = WQE_BUSY; 2777ce1b591cSJames Smart goto out; 2778ce1b591cSJames Smart } 2779d613b6a7SJames Smart 2780d613b6a7SJames Smart spin_lock_irqsave(&phba->hbalock, flags); 2781d613b6a7SJames Smart abts_wqeq->wqe_cmpl = lpfc_nvmet_xmt_ls_abort_cmp; 2782d613b6a7SJames Smart abts_wqeq->iocb_cmpl = 0; 2783d613b6a7SJames Smart abts_wqeq->iocb_flag |= LPFC_IO_NVME_LS; 2784d613b6a7SJames Smart rc = lpfc_sli4_issue_wqe(phba, LPFC_ELS_RING, abts_wqeq); 2785d613b6a7SJames Smart spin_unlock_irqrestore(&phba->hbalock, flags); 2786d613b6a7SJames Smart if (rc == WQE_SUCCESS) { 2787547077a4SJames Smart atomic_inc(&tgtp->xmt_abort_unsol); 2788d613b6a7SJames Smart return 0; 2789d613b6a7SJames Smart } 2790ce1b591cSJames Smart out: 2791d613b6a7SJames Smart atomic_inc(&tgtp->xmt_abort_rsp_error); 2792d613b6a7SJames Smart abts_wqeq->context2 = NULL; 2793d613b6a7SJames Smart abts_wqeq->context3 = NULL; 2794d613b6a7SJames Smart lpfc_sli_release_iocbq(phba, abts_wqeq); 2795d613b6a7SJames Smart kfree(ctxp); 2796ce1b591cSJames Smart lpfc_printf_log(phba, KERN_ERR, LOG_NVME_ABTS, 2797d613b6a7SJames Smart "6056 Failed to Issue ABTS. Status x%x\n", rc); 2798d613b6a7SJames Smart return 0; 2799d613b6a7SJames Smart } 2800