^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) * bnx2fc_els.c: QLogic Linux FCoE offload driver.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * This file contains helper routines that handle ELS requests
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * and responses.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Copyright (c) 2008-2013 Broadcom Corporation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Copyright (c) 2014-2016 QLogic Corporation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * Copyright (c) 2016-2017 Cavium Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * This program is free software; you can redistribute it and/or modify
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) * it under the terms of the GNU General Public License as published by
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) * the Free Software Foundation.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) * Written by: Bhanu Prakash Gollapudi (bprakash@broadcom.com)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include "bnx2fc.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) static void bnx2fc_logo_resp(struct fc_seq *seq, struct fc_frame *fp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) void *arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) static void bnx2fc_flogi_resp(struct fc_seq *seq, struct fc_frame *fp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) void *arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) static int bnx2fc_initiate_els(struct bnx2fc_rport *tgt, unsigned int op,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) void *data, u32 data_len,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) void (*cb_func)(struct bnx2fc_els_cb_arg *cb_arg),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) struct bnx2fc_els_cb_arg *cb_arg, u32 timer_msec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) static void bnx2fc_rrq_compl(struct bnx2fc_els_cb_arg *cb_arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) struct bnx2fc_cmd *orig_io_req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) struct bnx2fc_cmd *rrq_req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) int rc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) BUG_ON(!cb_arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) rrq_req = cb_arg->io_req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) orig_io_req = cb_arg->aborted_io_req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) BUG_ON(!orig_io_req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) BNX2FC_ELS_DBG("rrq_compl: orig xid = 0x%x, rrq_xid = 0x%x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) orig_io_req->xid, rrq_req->xid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) kref_put(&orig_io_req->refcount, bnx2fc_cmd_release);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) if (test_and_clear_bit(BNX2FC_FLAG_ELS_TIMEOUT, &rrq_req->req_flags)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) * els req is timed out. cleanup the IO with FW and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) * drop the completion. Remove from active_cmd_queue.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) BNX2FC_ELS_DBG("rrq xid - 0x%x timed out, clean it up\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) rrq_req->xid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) if (rrq_req->on_active_queue) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) list_del_init(&rrq_req->link);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) rrq_req->on_active_queue = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) rc = bnx2fc_initiate_cleanup(rrq_req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) BUG_ON(rc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) kfree(cb_arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) int bnx2fc_send_rrq(struct bnx2fc_cmd *aborted_io_req)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) struct fc_els_rrq rrq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) struct bnx2fc_rport *tgt = aborted_io_req->tgt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) struct fc_lport *lport = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) struct bnx2fc_els_cb_arg *cb_arg = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) u32 sid = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) u32 r_a_tov = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) unsigned long start = jiffies;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) if (!test_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) lport = tgt->rdata->local_port;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) sid = tgt->sid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) r_a_tov = lport->r_a_tov;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) BNX2FC_ELS_DBG("Sending RRQ orig_xid = 0x%x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) aborted_io_req->xid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) memset(&rrq, 0, sizeof(rrq));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) cb_arg = kzalloc(sizeof(struct bnx2fc_els_cb_arg), GFP_NOIO);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) if (!cb_arg) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) printk(KERN_ERR PFX "Unable to allocate cb_arg for RRQ\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) rc = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) goto rrq_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) cb_arg->aborted_io_req = aborted_io_req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) rrq.rrq_cmd = ELS_RRQ;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) hton24(rrq.rrq_s_id, sid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) rrq.rrq_ox_id = htons(aborted_io_req->xid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) rrq.rrq_rx_id = htons(aborted_io_req->task->rxwr_txrd.var_ctx.rx_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) retry_rrq:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) rc = bnx2fc_initiate_els(tgt, ELS_RRQ, &rrq, sizeof(rrq),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) bnx2fc_rrq_compl, cb_arg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) r_a_tov);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) if (rc == -ENOMEM) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) if (time_after(jiffies, start + (10 * HZ))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) BNX2FC_ELS_DBG("rrq Failed\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) rc = FAILED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) goto rrq_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) msleep(20);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) goto retry_rrq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) rrq_err:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) if (rc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) BNX2FC_ELS_DBG("RRQ failed - release orig io req 0x%x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) aborted_io_req->xid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) kfree(cb_arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) spin_lock_bh(&tgt->tgt_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) kref_put(&aborted_io_req->refcount, bnx2fc_cmd_release);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) spin_unlock_bh(&tgt->tgt_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) static void bnx2fc_l2_els_compl(struct bnx2fc_els_cb_arg *cb_arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) struct bnx2fc_cmd *els_req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) struct bnx2fc_rport *tgt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) struct bnx2fc_mp_req *mp_req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) struct fc_frame_header *fc_hdr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) unsigned char *buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) void *resp_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) u32 resp_len, hdr_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) u16 l2_oxid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) int frame_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) int rc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) l2_oxid = cb_arg->l2_oxid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) BNX2FC_ELS_DBG("ELS COMPL - l2_oxid = 0x%x\n", l2_oxid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) els_req = cb_arg->io_req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) if (test_and_clear_bit(BNX2FC_FLAG_ELS_TIMEOUT, &els_req->req_flags)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) * els req is timed out. cleanup the IO with FW and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) * drop the completion. libfc will handle the els timeout
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) if (els_req->on_active_queue) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) list_del_init(&els_req->link);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) els_req->on_active_queue = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) rc = bnx2fc_initiate_cleanup(els_req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) BUG_ON(rc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) goto free_arg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) tgt = els_req->tgt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) mp_req = &(els_req->mp_req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) fc_hdr = &(mp_req->resp_fc_hdr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) resp_len = mp_req->resp_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) resp_buf = mp_req->resp_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) buf = kzalloc(PAGE_SIZE, GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) if (!buf) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) printk(KERN_ERR PFX "Unable to alloc mp buf\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) goto free_arg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) hdr_len = sizeof(*fc_hdr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) if (hdr_len + resp_len > PAGE_SIZE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) printk(KERN_ERR PFX "l2_els_compl: resp len is "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) "beyond page size\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) goto free_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) memcpy(buf, fc_hdr, hdr_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) memcpy(buf + hdr_len, resp_buf, resp_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) frame_len = hdr_len + resp_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) bnx2fc_process_l2_frame_compl(tgt, buf, frame_len, l2_oxid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) free_buf:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) kfree(buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) free_arg:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) kfree(cb_arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) int bnx2fc_send_adisc(struct bnx2fc_rport *tgt, struct fc_frame *fp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) struct fc_els_adisc *adisc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) struct fc_frame_header *fh;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) struct bnx2fc_els_cb_arg *cb_arg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) struct fc_lport *lport = tgt->rdata->local_port;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) u32 r_a_tov = lport->r_a_tov;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) fh = fc_frame_header_get(fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) cb_arg = kzalloc(sizeof(struct bnx2fc_els_cb_arg), GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) if (!cb_arg) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) printk(KERN_ERR PFX "Unable to allocate cb_arg for ADISC\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) cb_arg->l2_oxid = ntohs(fh->fh_ox_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) BNX2FC_ELS_DBG("send ADISC: l2_oxid = 0x%x\n", cb_arg->l2_oxid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) adisc = fc_frame_payload_get(fp, sizeof(*adisc));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) /* adisc is initialized by libfc */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) rc = bnx2fc_initiate_els(tgt, ELS_ADISC, adisc, sizeof(*adisc),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) bnx2fc_l2_els_compl, cb_arg, 2 * r_a_tov);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) kfree(cb_arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) int bnx2fc_send_logo(struct bnx2fc_rport *tgt, struct fc_frame *fp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) struct fc_els_logo *logo;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) struct fc_frame_header *fh;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) struct bnx2fc_els_cb_arg *cb_arg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) struct fc_lport *lport = tgt->rdata->local_port;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) u32 r_a_tov = lport->r_a_tov;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) fh = fc_frame_header_get(fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) cb_arg = kzalloc(sizeof(struct bnx2fc_els_cb_arg), GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) if (!cb_arg) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) printk(KERN_ERR PFX "Unable to allocate cb_arg for LOGO\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) cb_arg->l2_oxid = ntohs(fh->fh_ox_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) BNX2FC_ELS_DBG("Send LOGO: l2_oxid = 0x%x\n", cb_arg->l2_oxid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) logo = fc_frame_payload_get(fp, sizeof(*logo));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) /* logo is initialized by libfc */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) rc = bnx2fc_initiate_els(tgt, ELS_LOGO, logo, sizeof(*logo),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) bnx2fc_l2_els_compl, cb_arg, 2 * r_a_tov);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) kfree(cb_arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) int bnx2fc_send_rls(struct bnx2fc_rport *tgt, struct fc_frame *fp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) struct fc_els_rls *rls;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) struct fc_frame_header *fh;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) struct bnx2fc_els_cb_arg *cb_arg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) struct fc_lport *lport = tgt->rdata->local_port;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) u32 r_a_tov = lport->r_a_tov;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) fh = fc_frame_header_get(fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) cb_arg = kzalloc(sizeof(struct bnx2fc_els_cb_arg), GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) if (!cb_arg) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) printk(KERN_ERR PFX "Unable to allocate cb_arg for LOGO\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) cb_arg->l2_oxid = ntohs(fh->fh_ox_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) rls = fc_frame_payload_get(fp, sizeof(*rls));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) /* rls is initialized by libfc */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) rc = bnx2fc_initiate_els(tgt, ELS_RLS, rls, sizeof(*rls),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) bnx2fc_l2_els_compl, cb_arg, 2 * r_a_tov);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) kfree(cb_arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) static void bnx2fc_srr_compl(struct bnx2fc_els_cb_arg *cb_arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) struct bnx2fc_mp_req *mp_req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) struct fc_frame_header *fc_hdr, *fh;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) struct bnx2fc_cmd *srr_req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) struct bnx2fc_cmd *orig_io_req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) struct fc_frame *fp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) unsigned char *buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) void *resp_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) u32 resp_len, hdr_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) u8 opcode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) int rc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) orig_io_req = cb_arg->aborted_io_req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) srr_req = cb_arg->io_req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) if (test_and_clear_bit(BNX2FC_FLAG_ELS_TIMEOUT, &srr_req->req_flags)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) /* SRR timedout */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) BNX2FC_IO_DBG(srr_req, "srr timed out, abort "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) "orig_io - 0x%x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) orig_io_req->xid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) rc = bnx2fc_initiate_abts(srr_req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) if (rc != SUCCESS) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) BNX2FC_IO_DBG(srr_req, "srr_compl: initiate_abts "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) "failed. issue cleanup\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) bnx2fc_initiate_cleanup(srr_req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) if (test_bit(BNX2FC_FLAG_IO_COMPL, &orig_io_req->req_flags) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) test_bit(BNX2FC_FLAG_ISSUE_ABTS, &orig_io_req->req_flags)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) BNX2FC_IO_DBG(srr_req, "srr_compl:xid 0x%x flags = %lx",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) orig_io_req->xid, orig_io_req->req_flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) goto srr_compl_done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) orig_io_req->srr_retry++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) if (orig_io_req->srr_retry <= SRR_RETRY_COUNT) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) struct bnx2fc_rport *tgt = orig_io_req->tgt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) spin_unlock_bh(&tgt->tgt_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) rc = bnx2fc_send_srr(orig_io_req,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) orig_io_req->srr_offset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) orig_io_req->srr_rctl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) spin_lock_bh(&tgt->tgt_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) if (!rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) goto srr_compl_done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) rc = bnx2fc_initiate_abts(orig_io_req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) if (rc != SUCCESS) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) BNX2FC_IO_DBG(srr_req, "srr_compl: initiate_abts "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) "failed xid = 0x%x. issue cleanup\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) orig_io_req->xid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) bnx2fc_initiate_cleanup(orig_io_req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) goto srr_compl_done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) if (test_bit(BNX2FC_FLAG_IO_COMPL, &orig_io_req->req_flags) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) test_bit(BNX2FC_FLAG_ISSUE_ABTS, &orig_io_req->req_flags)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) BNX2FC_IO_DBG(srr_req, "srr_compl:xid - 0x%x flags = %lx",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) orig_io_req->xid, orig_io_req->req_flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) goto srr_compl_done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) mp_req = &(srr_req->mp_req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) fc_hdr = &(mp_req->resp_fc_hdr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) resp_len = mp_req->resp_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) resp_buf = mp_req->resp_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) hdr_len = sizeof(*fc_hdr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) buf = kzalloc(PAGE_SIZE, GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) if (!buf) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) printk(KERN_ERR PFX "srr buf: mem alloc failure\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) goto srr_compl_done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) memcpy(buf, fc_hdr, hdr_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) memcpy(buf + hdr_len, resp_buf, resp_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) fp = fc_frame_alloc(NULL, resp_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) if (!fp) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) printk(KERN_ERR PFX "fc_frame_alloc failure\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) goto free_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) fh = (struct fc_frame_header *) fc_frame_header_get(fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) /* Copy FC Frame header and payload into the frame */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) memcpy(fh, buf, hdr_len + resp_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) opcode = fc_frame_payload_op(fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) switch (opcode) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) case ELS_LS_ACC:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) BNX2FC_IO_DBG(srr_req, "SRR success\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) case ELS_LS_RJT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) BNX2FC_IO_DBG(srr_req, "SRR rejected\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) rc = bnx2fc_initiate_abts(orig_io_req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) if (rc != SUCCESS) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) BNX2FC_IO_DBG(srr_req, "srr_compl: initiate_abts "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) "failed xid = 0x%x. issue cleanup\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) orig_io_req->xid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) bnx2fc_initiate_cleanup(orig_io_req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) BNX2FC_IO_DBG(srr_req, "srr compl - invalid opcode = %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) opcode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) fc_frame_free(fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) free_buf:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) kfree(buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) srr_compl_done:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) kref_put(&orig_io_req->refcount, bnx2fc_cmd_release);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) static void bnx2fc_rec_compl(struct bnx2fc_els_cb_arg *cb_arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) struct bnx2fc_cmd *orig_io_req, *new_io_req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) struct bnx2fc_cmd *rec_req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) struct bnx2fc_mp_req *mp_req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) struct fc_frame_header *fc_hdr, *fh;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) struct fc_els_ls_rjt *rjt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) struct fc_els_rec_acc *acc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) struct bnx2fc_rport *tgt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) struct fcoe_err_report_entry *err_entry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) struct scsi_cmnd *sc_cmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) enum fc_rctl r_ctl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) unsigned char *buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) void *resp_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) struct fc_frame *fp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) u8 opcode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) u32 offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) u32 e_stat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) u32 resp_len, hdr_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) int rc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) bool send_seq_clnp = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) bool abort_io = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) BNX2FC_MISC_DBG("Entered rec_compl callback\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) rec_req = cb_arg->io_req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) orig_io_req = cb_arg->aborted_io_req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) BNX2FC_IO_DBG(rec_req, "rec_compl: orig xid = 0x%x", orig_io_req->xid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) tgt = orig_io_req->tgt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) /* Handle REC timeout case */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) if (test_and_clear_bit(BNX2FC_FLAG_ELS_TIMEOUT, &rec_req->req_flags)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) BNX2FC_IO_DBG(rec_req, "timed out, abort "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) "orig_io - 0x%x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) orig_io_req->xid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) /* els req is timed out. send abts for els */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) rc = bnx2fc_initiate_abts(rec_req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) if (rc != SUCCESS) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) BNX2FC_IO_DBG(rec_req, "rec_compl: initiate_abts "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) "failed. issue cleanup\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) bnx2fc_initiate_cleanup(rec_req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) orig_io_req->rec_retry++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) /* REC timedout. send ABTS to the orig IO req */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) if (orig_io_req->rec_retry <= REC_RETRY_COUNT) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) spin_unlock_bh(&tgt->tgt_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) rc = bnx2fc_send_rec(orig_io_req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) spin_lock_bh(&tgt->tgt_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) if (!rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) goto rec_compl_done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) rc = bnx2fc_initiate_abts(orig_io_req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) if (rc != SUCCESS) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) BNX2FC_IO_DBG(rec_req, "rec_compl: initiate_abts "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) "failed xid = 0x%x. issue cleanup\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) orig_io_req->xid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) bnx2fc_initiate_cleanup(orig_io_req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) goto rec_compl_done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) if (test_bit(BNX2FC_FLAG_IO_COMPL, &orig_io_req->req_flags)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) BNX2FC_IO_DBG(rec_req, "completed"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) "orig_io - 0x%x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) orig_io_req->xid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) goto rec_compl_done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) if (test_bit(BNX2FC_FLAG_ISSUE_ABTS, &orig_io_req->req_flags)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) BNX2FC_IO_DBG(rec_req, "abts in prog "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) "orig_io - 0x%x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) orig_io_req->xid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) goto rec_compl_done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) mp_req = &(rec_req->mp_req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) fc_hdr = &(mp_req->resp_fc_hdr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) resp_len = mp_req->resp_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) acc = resp_buf = mp_req->resp_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) hdr_len = sizeof(*fc_hdr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) buf = kzalloc(PAGE_SIZE, GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) if (!buf) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) printk(KERN_ERR PFX "rec buf: mem alloc failure\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) goto rec_compl_done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) memcpy(buf, fc_hdr, hdr_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) memcpy(buf + hdr_len, resp_buf, resp_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) fp = fc_frame_alloc(NULL, resp_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) if (!fp) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) printk(KERN_ERR PFX "fc_frame_alloc failure\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) goto free_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) fh = (struct fc_frame_header *) fc_frame_header_get(fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) /* Copy FC Frame header and payload into the frame */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) memcpy(fh, buf, hdr_len + resp_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) opcode = fc_frame_payload_op(fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) if (opcode == ELS_LS_RJT) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) BNX2FC_IO_DBG(rec_req, "opcode is RJT\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) rjt = fc_frame_payload_get(fp, sizeof(*rjt));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) if ((rjt->er_reason == ELS_RJT_LOGIC ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) rjt->er_reason == ELS_RJT_UNAB) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) rjt->er_explan == ELS_EXPL_OXID_RXID) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) BNX2FC_IO_DBG(rec_req, "handle CMD LOST case\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) new_io_req = bnx2fc_cmd_alloc(tgt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) if (!new_io_req)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) goto abort_io;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) new_io_req->sc_cmd = orig_io_req->sc_cmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) /* cleanup orig_io_req that is with the FW */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) set_bit(BNX2FC_FLAG_CMD_LOST,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) &orig_io_req->req_flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) bnx2fc_initiate_cleanup(orig_io_req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) /* Post a new IO req with the same sc_cmd */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) BNX2FC_IO_DBG(rec_req, "Post IO request again\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) rc = bnx2fc_post_io_req(tgt, new_io_req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) if (!rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) goto free_frame;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) BNX2FC_IO_DBG(rec_req, "REC: io post err\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) abort_io:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) rc = bnx2fc_initiate_abts(orig_io_req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) if (rc != SUCCESS) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) BNX2FC_IO_DBG(rec_req, "rec_compl: initiate_abts "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) "failed. issue cleanup\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) bnx2fc_initiate_cleanup(orig_io_req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) } else if (opcode == ELS_LS_ACC) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) /* REVISIT: Check if the exchange is already aborted */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) offset = ntohl(acc->reca_fc4value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) e_stat = ntohl(acc->reca_e_stat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) if (e_stat & ESB_ST_SEQ_INIT) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) BNX2FC_IO_DBG(rec_req, "target has the seq init\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) goto free_frame;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) BNX2FC_IO_DBG(rec_req, "e_stat = 0x%x, offset = 0x%x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) e_stat, offset);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) /* Seq initiative is with us */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) err_entry = (struct fcoe_err_report_entry *)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) &orig_io_req->err_entry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) sc_cmd = orig_io_req->sc_cmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) if (sc_cmd->sc_data_direction == DMA_TO_DEVICE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) /* SCSI WRITE command */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) if (offset == orig_io_req->data_xfer_len) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) BNX2FC_IO_DBG(rec_req, "WRITE - resp lost\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) /* FCP_RSP lost */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) r_ctl = FC_RCTL_DD_CMD_STATUS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) offset = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) /* start transmitting from offset */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) BNX2FC_IO_DBG(rec_req, "XFER_RDY/DATA lost\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) send_seq_clnp = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) r_ctl = FC_RCTL_DD_DATA_DESC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) if (bnx2fc_initiate_seq_cleanup(orig_io_req,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) offset, r_ctl))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) abort_io = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) /* XFER_RDY */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) /* SCSI READ command */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) if (err_entry->data.rx_buf_off ==
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) orig_io_req->data_xfer_len) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) /* FCP_RSP lost */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) BNX2FC_IO_DBG(rec_req, "READ - resp lost\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) r_ctl = FC_RCTL_DD_CMD_STATUS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) offset = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) /* request retransmission from this offset */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) send_seq_clnp = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) offset = err_entry->data.rx_buf_off;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) BNX2FC_IO_DBG(rec_req, "RD DATA lost\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) /* FCP_DATA lost */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) r_ctl = FC_RCTL_DD_SOL_DATA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) if (bnx2fc_initiate_seq_cleanup(orig_io_req,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) offset, r_ctl))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) abort_io = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) if (abort_io) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) rc = bnx2fc_initiate_abts(orig_io_req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) if (rc != SUCCESS) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) BNX2FC_IO_DBG(rec_req, "rec_compl:initiate_abts"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) " failed. issue cleanup\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) bnx2fc_initiate_cleanup(orig_io_req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) } else if (!send_seq_clnp) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) BNX2FC_IO_DBG(rec_req, "Send SRR - FCP_RSP\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) spin_unlock_bh(&tgt->tgt_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) rc = bnx2fc_send_srr(orig_io_req, offset, r_ctl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) spin_lock_bh(&tgt->tgt_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) if (rc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) BNX2FC_IO_DBG(rec_req, "Unable to send SRR"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) " IO will abort\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) free_frame:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) fc_frame_free(fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) free_buf:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) kfree(buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) rec_compl_done:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) kref_put(&orig_io_req->refcount, bnx2fc_cmd_release);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) kfree(cb_arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) int bnx2fc_send_rec(struct bnx2fc_cmd *orig_io_req)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) struct fc_els_rec rec;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) struct bnx2fc_rport *tgt = orig_io_req->tgt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) struct fc_lport *lport = tgt->rdata->local_port;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) struct bnx2fc_els_cb_arg *cb_arg = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) u32 sid = tgt->sid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) u32 r_a_tov = lport->r_a_tov;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) BNX2FC_IO_DBG(orig_io_req, "Sending REC\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) memset(&rec, 0, sizeof(rec));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) cb_arg = kzalloc(sizeof(struct bnx2fc_els_cb_arg), GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) if (!cb_arg) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) printk(KERN_ERR PFX "Unable to allocate cb_arg for REC\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) rc = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) goto rec_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) kref_get(&orig_io_req->refcount);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) cb_arg->aborted_io_req = orig_io_req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) rec.rec_cmd = ELS_REC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) hton24(rec.rec_s_id, sid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) rec.rec_ox_id = htons(orig_io_req->xid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) rec.rec_rx_id = htons(orig_io_req->task->rxwr_txrd.var_ctx.rx_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) rc = bnx2fc_initiate_els(tgt, ELS_REC, &rec, sizeof(rec),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) bnx2fc_rec_compl, cb_arg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) r_a_tov);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) if (rc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) BNX2FC_IO_DBG(orig_io_req, "REC failed - release\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) spin_lock_bh(&tgt->tgt_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) kref_put(&orig_io_req->refcount, bnx2fc_cmd_release);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) spin_unlock_bh(&tgt->tgt_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) kfree(cb_arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) rec_err:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) int bnx2fc_send_srr(struct bnx2fc_cmd *orig_io_req, u32 offset, u8 r_ctl)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) struct fcp_srr srr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) struct bnx2fc_rport *tgt = orig_io_req->tgt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) struct fc_lport *lport = tgt->rdata->local_port;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) struct bnx2fc_els_cb_arg *cb_arg = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) u32 r_a_tov = lport->r_a_tov;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) BNX2FC_IO_DBG(orig_io_req, "Sending SRR\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) memset(&srr, 0, sizeof(srr));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) cb_arg = kzalloc(sizeof(struct bnx2fc_els_cb_arg), GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) if (!cb_arg) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) printk(KERN_ERR PFX "Unable to allocate cb_arg for SRR\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) rc = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) goto srr_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) kref_get(&orig_io_req->refcount);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) cb_arg->aborted_io_req = orig_io_req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) srr.srr_op = ELS_SRR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) srr.srr_ox_id = htons(orig_io_req->xid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) srr.srr_rx_id = htons(orig_io_req->task->rxwr_txrd.var_ctx.rx_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) srr.srr_rel_off = htonl(offset);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) srr.srr_r_ctl = r_ctl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) orig_io_req->srr_offset = offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) orig_io_req->srr_rctl = r_ctl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) rc = bnx2fc_initiate_els(tgt, ELS_SRR, &srr, sizeof(srr),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) bnx2fc_srr_compl, cb_arg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) r_a_tov);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) if (rc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) BNX2FC_IO_DBG(orig_io_req, "SRR failed - release\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) spin_lock_bh(&tgt->tgt_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) kref_put(&orig_io_req->refcount, bnx2fc_cmd_release);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) spin_unlock_bh(&tgt->tgt_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) kfree(cb_arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664) set_bit(BNX2FC_FLAG_SRR_SENT, &orig_io_req->req_flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) srr_err:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) static int bnx2fc_initiate_els(struct bnx2fc_rport *tgt, unsigned int op,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) void *data, u32 data_len,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672) void (*cb_func)(struct bnx2fc_els_cb_arg *cb_arg),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) struct bnx2fc_els_cb_arg *cb_arg, u32 timer_msec)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) struct fcoe_port *port = tgt->port;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) struct bnx2fc_interface *interface = port->priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) struct fc_rport *rport = tgt->rport;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) struct fc_lport *lport = port->lport;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) struct bnx2fc_cmd *els_req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680) struct bnx2fc_mp_req *mp_req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) struct fc_frame_header *fc_hdr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) struct fcoe_task_ctx_entry *task;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) struct fcoe_task_ctx_entry *task_page;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) int rc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) int task_idx, index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) u32 did, sid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687) u16 xid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) rc = fc_remote_port_chkready(rport);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) if (rc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691) printk(KERN_ERR PFX "els 0x%x: rport not ready\n", op);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692) rc = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) goto els_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) if (lport->state != LPORT_ST_READY || !(lport->link_up)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) printk(KERN_ERR PFX "els 0x%x: link is not ready\n", op);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) rc = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698) goto els_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) if (!(test_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701) printk(KERN_ERR PFX "els 0x%x: tgt not ready\n", op);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) rc = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) goto els_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705) els_req = bnx2fc_elstm_alloc(tgt, BNX2FC_ELS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) if (!els_req) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707) rc = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708) goto els_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711) els_req->sc_cmd = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712) els_req->port = port;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713) els_req->tgt = tgt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714) els_req->cb_func = cb_func;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) cb_arg->io_req = els_req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716) els_req->cb_arg = cb_arg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717) els_req->data_xfer_len = data_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719) mp_req = (struct bnx2fc_mp_req *)&(els_req->mp_req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720) rc = bnx2fc_init_mp_req(els_req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721) if (rc == FAILED) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722) printk(KERN_ERR PFX "ELS MP request init failed\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723) spin_lock_bh(&tgt->tgt_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724) kref_put(&els_req->refcount, bnx2fc_cmd_release);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725) spin_unlock_bh(&tgt->tgt_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726) rc = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727) goto els_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729) /* rc SUCCESS */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730) rc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733) /* Set the data_xfer_len to the size of ELS payload */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734) mp_req->req_len = data_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735) els_req->data_xfer_len = mp_req->req_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737) /* Fill ELS Payload */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738) if ((op >= ELS_LS_RJT) && (op <= ELS_AUTH_ELS)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739) memcpy(mp_req->req_buf, data, data_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741) printk(KERN_ERR PFX "Invalid ELS op 0x%x\n", op);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742) els_req->cb_func = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743) els_req->cb_arg = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744) spin_lock_bh(&tgt->tgt_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745) kref_put(&els_req->refcount, bnx2fc_cmd_release);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746) spin_unlock_bh(&tgt->tgt_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747) rc = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751) goto els_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) /* Fill FC header */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754) fc_hdr = &(mp_req->req_fc_hdr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756) did = tgt->rport->port_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757) sid = tgt->sid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759) if (op == ELS_SRR)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760) __fc_fill_fc_hdr(fc_hdr, FC_RCTL_ELS4_REQ, did, sid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761) FC_TYPE_FCP, FC_FC_FIRST_SEQ |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762) FC_FC_END_SEQ | FC_FC_SEQ_INIT, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764) __fc_fill_fc_hdr(fc_hdr, FC_RCTL_ELS_REQ, did, sid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765) FC_TYPE_ELS, FC_FC_FIRST_SEQ |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766) FC_FC_END_SEQ | FC_FC_SEQ_INIT, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 768) /* Obtain exchange id */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 769) xid = els_req->xid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 770) task_idx = xid/BNX2FC_TASKS_PER_PAGE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 771) index = xid % BNX2FC_TASKS_PER_PAGE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 772)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 773) /* Initialize task context for this IO request */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 774) task_page = (struct fcoe_task_ctx_entry *)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 775) interface->hba->task_ctx[task_idx];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 776) task = &(task_page[index]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 777) bnx2fc_init_mp_task(els_req, task);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 778)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 779) spin_lock_bh(&tgt->tgt_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 780)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 781) if (!test_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 782) printk(KERN_ERR PFX "initiate_els.. session not ready\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 783) els_req->cb_func = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 784) els_req->cb_arg = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 785) kref_put(&els_req->refcount, bnx2fc_cmd_release);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 786) spin_unlock_bh(&tgt->tgt_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 787) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 788) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 789)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 790) if (timer_msec)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 791) bnx2fc_cmd_timer_set(els_req, timer_msec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 792) bnx2fc_add_2_sq(tgt, xid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 793)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 794) els_req->on_active_queue = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 795) list_add_tail(&els_req->link, &tgt->els_queue);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 796)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 797) /* Ring doorbell */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 798) bnx2fc_ring_doorbell(tgt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 799) spin_unlock_bh(&tgt->tgt_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 800)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 801) els_err:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 802) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 803) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 804)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 805) void bnx2fc_process_els_compl(struct bnx2fc_cmd *els_req,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 806) struct fcoe_task_ctx_entry *task, u8 num_rq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 807) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 808) struct bnx2fc_mp_req *mp_req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 809) struct fc_frame_header *fc_hdr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 810) u64 *hdr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 811) u64 *temp_hdr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 812)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 813) BNX2FC_ELS_DBG("Entered process_els_compl xid = 0x%x"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 814) "cmd_type = %d\n", els_req->xid, els_req->cmd_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 815)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 816) if (test_and_set_bit(BNX2FC_FLAG_ELS_DONE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 817) &els_req->req_flags)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 818) BNX2FC_ELS_DBG("Timer context finished processing this "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 819) "els - 0x%x\n", els_req->xid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 820) /* This IO doesn't receive cleanup completion */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 821) kref_put(&els_req->refcount, bnx2fc_cmd_release);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 822) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 823) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 824)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 825) /* Cancel the timeout_work, as we received the response */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 826) if (cancel_delayed_work(&els_req->timeout_work))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 827) kref_put(&els_req->refcount,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 828) bnx2fc_cmd_release); /* drop timer hold */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 829)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 830) if (els_req->on_active_queue) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 831) list_del_init(&els_req->link);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 832) els_req->on_active_queue = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 833) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 834)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 835) mp_req = &(els_req->mp_req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 836) fc_hdr = &(mp_req->resp_fc_hdr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 837)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 838) hdr = (u64 *)fc_hdr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 839) temp_hdr = (u64 *)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 840) &task->rxwr_only.union_ctx.comp_info.mp_rsp.fc_hdr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 841) hdr[0] = cpu_to_be64(temp_hdr[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 842) hdr[1] = cpu_to_be64(temp_hdr[1]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 843) hdr[2] = cpu_to_be64(temp_hdr[2]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 844)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 845) mp_req->resp_len =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 846) task->rxwr_only.union_ctx.comp_info.mp_rsp.mp_payload_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 847)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 848) /* Parse ELS response */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 849) if ((els_req->cb_func) && (els_req->cb_arg)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 850) els_req->cb_func(els_req->cb_arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 851) els_req->cb_arg = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 852) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 853)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 854) kref_put(&els_req->refcount, bnx2fc_cmd_release);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 855) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 856)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 857) #define BNX2FC_FCOE_MAC_METHOD_GRANGED_MAC 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 858) #define BNX2FC_FCOE_MAC_METHOD_FCF_MAP 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 859) #define BNX2FC_FCOE_MAC_METHOD_FCOE_SET_MAC 3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 860) static void bnx2fc_flogi_resp(struct fc_seq *seq, struct fc_frame *fp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 861) void *arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 862) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 863) struct fcoe_ctlr *fip = arg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 864) struct fc_exch *exch = fc_seq_exch(seq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 865) struct fc_lport *lport = exch->lp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 866)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 867) struct fc_frame_header *fh;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 868) u8 *granted_mac;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 869) u8 fcoe_mac[6];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 870) u8 fc_map[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 871) int method;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 872)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 873) if (IS_ERR(fp))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 874) goto done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 875)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 876) fh = fc_frame_header_get(fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 877) granted_mac = fr_cb(fp)->granted_mac;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 878)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 879) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 880) * We set the source MAC for FCoE traffic based on the Granted MAC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 881) * address from the switch.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 882) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 883) * If granted_mac is non-zero, we use that.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 884) * If the granted_mac is zeroed out, create the FCoE MAC based on
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 885) * the sel_fcf->fc_map and the d_id fo the FLOGI frame.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 886) * If sel_fcf->fc_map is 0, then we use the default FCF-MAC plus the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 887) * d_id of the FLOGI frame.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 888) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 889) if (!is_zero_ether_addr(granted_mac)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 890) ether_addr_copy(fcoe_mac, granted_mac);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 891) method = BNX2FC_FCOE_MAC_METHOD_GRANGED_MAC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 892) } else if (fip->sel_fcf && fip->sel_fcf->fc_map != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 893) hton24(fc_map, fip->sel_fcf->fc_map);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 894) fcoe_mac[0] = fc_map[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 895) fcoe_mac[1] = fc_map[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 896) fcoe_mac[2] = fc_map[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 897) fcoe_mac[3] = fh->fh_d_id[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 898) fcoe_mac[4] = fh->fh_d_id[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 899) fcoe_mac[5] = fh->fh_d_id[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 900) method = BNX2FC_FCOE_MAC_METHOD_FCF_MAP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 901) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 902) fc_fcoe_set_mac(fcoe_mac, fh->fh_d_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 903) method = BNX2FC_FCOE_MAC_METHOD_FCOE_SET_MAC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 904) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 905)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 906) BNX2FC_HBA_DBG(lport, "fcoe_mac=%pM method=%d\n", fcoe_mac, method);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 907) fip->update_mac(lport, fcoe_mac);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 908) done:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 909) fc_lport_flogi_resp(seq, fp, lport);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 910) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 911)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 912) static void bnx2fc_logo_resp(struct fc_seq *seq, struct fc_frame *fp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 913) void *arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 914) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 915) struct fcoe_ctlr *fip = arg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 916) struct fc_exch *exch = fc_seq_exch(seq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 917) struct fc_lport *lport = exch->lp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 918) static u8 zero_mac[ETH_ALEN] = { 0 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 919)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 920) if (!IS_ERR(fp))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 921) fip->update_mac(lport, zero_mac);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 922) fc_lport_logo_resp(seq, fp, lport);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 923) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 924)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 925) struct fc_seq *bnx2fc_elsct_send(struct fc_lport *lport, u32 did,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 926) struct fc_frame *fp, unsigned int op,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 927) void (*resp)(struct fc_seq *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 928) struct fc_frame *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 929) void *),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 930) void *arg, u32 timeout)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 931) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 932) struct fcoe_port *port = lport_priv(lport);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 933) struct bnx2fc_interface *interface = port->priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 934) struct fcoe_ctlr *fip = bnx2fc_to_ctlr(interface);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 935) struct fc_frame_header *fh = fc_frame_header_get(fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 936)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 937) switch (op) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 938) case ELS_FLOGI:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 939) case ELS_FDISC:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 940) return fc_elsct_send(lport, did, fp, op, bnx2fc_flogi_resp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 941) fip, timeout);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 942) case ELS_LOGO:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 943) /* only hook onto fabric logouts, not port logouts */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 944) if (ntoh24(fh->fh_d_id) != FC_FID_FLOGI)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 945) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 946) return fc_elsct_send(lport, did, fp, op, bnx2fc_logo_resp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 947) fip, timeout);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 948) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 949) return fc_elsct_send(lport, did, fp, op, resp, arg, timeout);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 950) }
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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