^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) * Copyright (c) 2009-2010 Chelsio, Inc. All rights reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * This software is available to you under a choice of one of two
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * licenses. You may choose to be licensed under the terms of the GNU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * General Public License (GPL) Version 2, available from the file
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * COPYING in the main directory of this source tree, or the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * OpenIB.org BSD license below:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * Redistribution and use in source and binary forms, with or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) * without modification, are permitted provided that the following
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) * conditions are met:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) * - Redistributions of source code must retain the above
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) * copyright notice, this list of conditions and the following
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) * disclaimer.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) * - Redistributions in binary form must reproduce the above
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) * copyright notice, this list of conditions and the following
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) * disclaimer in the documentation and/or other materials
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) * provided with the distribution.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) * SOFTWARE.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #include <linux/moduleparam.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #include <linux/debugfs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #include <linux/vmalloc.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #include <linux/math64.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) #include <rdma/ib_verbs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #include "iw_cxgb4.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #define DRV_VERSION "0.1"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) MODULE_AUTHOR("Steve Wise");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) MODULE_DESCRIPTION("Chelsio T4/T5 RDMA Driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) MODULE_LICENSE("Dual BSD/GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) static int allow_db_fc_on_t5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) module_param(allow_db_fc_on_t5, int, 0644);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) MODULE_PARM_DESC(allow_db_fc_on_t5,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) "Allow DB Flow Control on T5 (default = 0)");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) static int allow_db_coalescing_on_t5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) module_param(allow_db_coalescing_on_t5, int, 0644);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) MODULE_PARM_DESC(allow_db_coalescing_on_t5,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) "Allow DB Coalescing on T5 (default = 0)");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) int c4iw_wr_log = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) module_param(c4iw_wr_log, int, 0444);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) MODULE_PARM_DESC(c4iw_wr_log, "Enables logging of work request timing data.");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) static int c4iw_wr_log_size_order = 12;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) module_param(c4iw_wr_log_size_order, int, 0444);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) MODULE_PARM_DESC(c4iw_wr_log_size_order,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) "Number of entries (log2) in the work request timing log.");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) static LIST_HEAD(uld_ctx_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) static DEFINE_MUTEX(dev_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) static struct workqueue_struct *reg_workq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) #define DB_FC_RESUME_SIZE 64
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) #define DB_FC_RESUME_DELAY 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) #define DB_FC_DRAIN_THRESH 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) static struct dentry *c4iw_debugfs_root;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) struct c4iw_debugfs_data {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) struct c4iw_dev *devp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) char *buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) int bufsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) int pos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) static ssize_t debugfs_read(struct file *file, char __user *buf, size_t count,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) loff_t *ppos)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) struct c4iw_debugfs_data *d = file->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) return simple_read_from_buffer(buf, count, ppos, d->buf, d->pos);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) void c4iw_log_wr_stats(struct t4_wq *wq, struct t4_cqe *cqe)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) struct wr_log_entry le;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) int idx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) if (!wq->rdev->wr_log)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) idx = (atomic_inc_return(&wq->rdev->wr_log_idx) - 1) &
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) (wq->rdev->wr_log_size - 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) le.poll_sge_ts = cxgb4_read_sge_timestamp(wq->rdev->lldi.ports[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) le.poll_host_time = ktime_get();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) le.valid = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) le.cqe_sge_ts = CQE_TS(cqe);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) if (SQ_TYPE(cqe)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) le.qid = wq->sq.qid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) le.opcode = CQE_OPCODE(cqe);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) le.post_host_time = wq->sq.sw_sq[wq->sq.cidx].host_time;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) le.post_sge_ts = wq->sq.sw_sq[wq->sq.cidx].sge_ts;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) le.wr_id = CQE_WRID_SQ_IDX(cqe);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) le.qid = wq->rq.qid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) le.opcode = FW_RI_RECEIVE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) le.post_host_time = wq->rq.sw_rq[wq->rq.cidx].host_time;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) le.post_sge_ts = wq->rq.sw_rq[wq->rq.cidx].sge_ts;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) le.wr_id = CQE_WRID_MSN(cqe);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) wq->rdev->wr_log[idx] = le;
^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 int wr_log_show(struct seq_file *seq, void *v)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) struct c4iw_dev *dev = seq->private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) ktime_t prev_time;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) struct wr_log_entry *lep;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) int prev_time_set = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) int idx, end;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) #define ts2ns(ts) div64_u64((ts) * dev->rdev.lldi.cclk_ps, 1000)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) idx = atomic_read(&dev->rdev.wr_log_idx) &
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) (dev->rdev.wr_log_size - 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) end = idx - 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) if (end < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) end = dev->rdev.wr_log_size - 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) lep = &dev->rdev.wr_log[idx];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) while (idx != end) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) if (lep->valid) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) if (!prev_time_set) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) prev_time_set = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) prev_time = lep->poll_host_time;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) seq_printf(seq, "%04u: nsec %llu qid %u opcode "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) "%u %s 0x%x host_wr_delta nsec %llu "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) "post_sge_ts 0x%llx cqe_sge_ts 0x%llx "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) "poll_sge_ts 0x%llx post_poll_delta_ns %llu "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) "cqe_poll_delta_ns %llu\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) idx,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) ktime_to_ns(ktime_sub(lep->poll_host_time,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) prev_time)),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) lep->qid, lep->opcode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) lep->opcode == FW_RI_RECEIVE ?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) "msn" : "wrid",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) lep->wr_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) ktime_to_ns(ktime_sub(lep->poll_host_time,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) lep->post_host_time)),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) lep->post_sge_ts, lep->cqe_sge_ts,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) lep->poll_sge_ts,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) ts2ns(lep->poll_sge_ts - lep->post_sge_ts),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) ts2ns(lep->poll_sge_ts - lep->cqe_sge_ts));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) prev_time = lep->poll_host_time;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) idx++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) if (idx > (dev->rdev.wr_log_size - 1))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) idx = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) lep = &dev->rdev.wr_log[idx];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) #undef ts2ns
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) static int wr_log_open(struct inode *inode, struct file *file)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) return single_open(file, wr_log_show, inode->i_private);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) static ssize_t wr_log_clear(struct file *file, const char __user *buf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) size_t count, loff_t *pos)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) struct c4iw_dev *dev = ((struct seq_file *)file->private_data)->private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) if (dev->rdev.wr_log)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) for (i = 0; i < dev->rdev.wr_log_size; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) dev->rdev.wr_log[i].valid = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) static const struct file_operations wr_log_debugfs_fops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) .owner = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) .open = wr_log_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) .release = single_release,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) .read = seq_read,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) .llseek = seq_lseek,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) .write = wr_log_clear,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) static struct sockaddr_in zero_sin = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) .sin_family = AF_INET,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) static struct sockaddr_in6 zero_sin6 = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) .sin6_family = AF_INET6,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) static void set_ep_sin_addrs(struct c4iw_ep *ep,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) struct sockaddr_in **lsin,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) struct sockaddr_in **rsin,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) struct sockaddr_in **m_lsin,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) struct sockaddr_in **m_rsin)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) struct iw_cm_id *id = ep->com.cm_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) *m_lsin = (struct sockaddr_in *)&ep->com.local_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) *m_rsin = (struct sockaddr_in *)&ep->com.remote_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) if (id) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) *lsin = (struct sockaddr_in *)&id->local_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) *rsin = (struct sockaddr_in *)&id->remote_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) *lsin = &zero_sin;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) *rsin = &zero_sin;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) }
^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) static void set_ep_sin6_addrs(struct c4iw_ep *ep,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) struct sockaddr_in6 **lsin6,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) struct sockaddr_in6 **rsin6,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) struct sockaddr_in6 **m_lsin6,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) struct sockaddr_in6 **m_rsin6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) struct iw_cm_id *id = ep->com.cm_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) *m_lsin6 = (struct sockaddr_in6 *)&ep->com.local_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) *m_rsin6 = (struct sockaddr_in6 *)&ep->com.remote_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) if (id) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) *lsin6 = (struct sockaddr_in6 *)&id->local_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) *rsin6 = (struct sockaddr_in6 *)&id->remote_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) *lsin6 = &zero_sin6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) *rsin6 = &zero_sin6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) static int dump_qp(unsigned long id, struct c4iw_qp *qp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) struct c4iw_debugfs_data *qpd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) int space;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) int cc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) if (id != qp->wq.sq.qid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) space = qpd->bufsize - qpd->pos - 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) if (space == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) if (qp->ep) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) struct c4iw_ep *ep = qp->ep;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) if (ep->com.local_addr.ss_family == AF_INET) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) struct sockaddr_in *lsin;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) struct sockaddr_in *rsin;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) struct sockaddr_in *m_lsin;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) struct sockaddr_in *m_rsin;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) set_ep_sin_addrs(ep, &lsin, &rsin, &m_lsin, &m_rsin);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) cc = snprintf(qpd->buf + qpd->pos, space,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) "rc qp sq id %u %s id %u state %u "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) "onchip %u ep tid %u state %u "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) "%pI4:%u/%u->%pI4:%u/%u\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) qp->wq.sq.qid, qp->srq ? "srq" : "rq",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) qp->srq ? qp->srq->idx : qp->wq.rq.qid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) (int)qp->attr.state,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) qp->wq.sq.flags & T4_SQ_ONCHIP,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) ep->hwtid, (int)ep->com.state,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) &lsin->sin_addr, ntohs(lsin->sin_port),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) ntohs(m_lsin->sin_port),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) &rsin->sin_addr, ntohs(rsin->sin_port),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) ntohs(m_rsin->sin_port));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) struct sockaddr_in6 *lsin6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) struct sockaddr_in6 *rsin6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) struct sockaddr_in6 *m_lsin6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) struct sockaddr_in6 *m_rsin6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) set_ep_sin6_addrs(ep, &lsin6, &rsin6, &m_lsin6,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) &m_rsin6);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) cc = snprintf(qpd->buf + qpd->pos, space,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) "rc qp sq id %u rq id %u state %u "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) "onchip %u ep tid %u state %u "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) "%pI6:%u/%u->%pI6:%u/%u\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) qp->wq.sq.qid, qp->wq.rq.qid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) (int)qp->attr.state,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) qp->wq.sq.flags & T4_SQ_ONCHIP,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) ep->hwtid, (int)ep->com.state,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) &lsin6->sin6_addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) ntohs(lsin6->sin6_port),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) ntohs(m_lsin6->sin6_port),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) &rsin6->sin6_addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) ntohs(rsin6->sin6_port),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) ntohs(m_rsin6->sin6_port));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) cc = snprintf(qpd->buf + qpd->pos, space,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) "qp sq id %u rq id %u state %u onchip %u\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) qp->wq.sq.qid, qp->wq.rq.qid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) (int)qp->attr.state,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) qp->wq.sq.flags & T4_SQ_ONCHIP);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) if (cc < space)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) qpd->pos += cc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) static int qp_release(struct inode *inode, struct file *file)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) struct c4iw_debugfs_data *qpd = file->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) if (!qpd) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) pr_info("%s null qpd?\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) vfree(qpd->buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) kfree(qpd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) static int qp_open(struct inode *inode, struct file *file)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) struct c4iw_qp *qp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) struct c4iw_debugfs_data *qpd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) unsigned long index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) int count = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) qpd = kmalloc(sizeof(*qpd), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) if (!qpd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) qpd->devp = inode->i_private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) qpd->pos = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) * No need to lock; we drop the lock to call vmalloc so it's racy
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) * anyway. Someone who cares should switch this over to seq_file
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) xa_for_each(&qpd->devp->qps, index, qp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) count++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) qpd->bufsize = count * 180;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) qpd->buf = vmalloc(qpd->bufsize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) if (!qpd->buf) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) kfree(qpd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) xa_lock_irq(&qpd->devp->qps);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) xa_for_each(&qpd->devp->qps, index, qp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) dump_qp(index, qp, qpd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) xa_unlock_irq(&qpd->devp->qps);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) qpd->buf[qpd->pos++] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) file->private_data = qpd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) static const struct file_operations qp_debugfs_fops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) .owner = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) .open = qp_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) .release = qp_release,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) .read = debugfs_read,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) .llseek = default_llseek,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) static int dump_stag(unsigned long id, struct c4iw_debugfs_data *stagd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) int space;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) int cc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) struct fw_ri_tpte tpte;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) space = stagd->bufsize - stagd->pos - 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) if (space == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) ret = cxgb4_read_tpte(stagd->devp->rdev.lldi.ports[0], (u32)id<<8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) (__be32 *)&tpte);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) dev_err(&stagd->devp->rdev.lldi.pdev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) "%s cxgb4_read_tpte err %d\n", __func__, ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) cc = snprintf(stagd->buf + stagd->pos, space,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) "stag: idx 0x%x valid %d key 0x%x state %d pdid %d "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) "perm 0x%x ps %d len 0x%llx va 0x%llx\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) (u32)id<<8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) FW_RI_TPTE_VALID_G(ntohl(tpte.valid_to_pdid)),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) FW_RI_TPTE_STAGKEY_G(ntohl(tpte.valid_to_pdid)),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) FW_RI_TPTE_STAGSTATE_G(ntohl(tpte.valid_to_pdid)),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) FW_RI_TPTE_PDID_G(ntohl(tpte.valid_to_pdid)),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) FW_RI_TPTE_PERM_G(ntohl(tpte.locread_to_qpid)),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) FW_RI_TPTE_PS_G(ntohl(tpte.locread_to_qpid)),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) ((u64)ntohl(tpte.len_hi) << 32) | ntohl(tpte.len_lo),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) ((u64)ntohl(tpte.va_hi) << 32) | ntohl(tpte.va_lo_fbo));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) if (cc < space)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) stagd->pos += cc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) static int stag_release(struct inode *inode, struct file *file)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) struct c4iw_debugfs_data *stagd = file->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) if (!stagd) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) pr_info("%s null stagd?\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) vfree(stagd->buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) kfree(stagd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) static int stag_open(struct inode *inode, struct file *file)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) struct c4iw_debugfs_data *stagd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) void *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) unsigned long index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) int ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) int count = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) stagd = kmalloc(sizeof(*stagd), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) if (!stagd) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) ret = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) stagd->devp = inode->i_private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) stagd->pos = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) xa_for_each(&stagd->devp->mrs, index, p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) count++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) stagd->bufsize = count * 256;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) stagd->buf = vmalloc(stagd->bufsize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) if (!stagd->buf) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) ret = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) goto err1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) xa_lock_irq(&stagd->devp->mrs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) xa_for_each(&stagd->devp->mrs, index, p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) dump_stag(index, stagd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) xa_unlock_irq(&stagd->devp->mrs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) stagd->buf[stagd->pos++] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) file->private_data = stagd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) err1:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) kfree(stagd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) static const struct file_operations stag_debugfs_fops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) .owner = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) .open = stag_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) .release = stag_release,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) .read = debugfs_read,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) .llseek = default_llseek,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) static char *db_state_str[] = {"NORMAL", "FLOW_CONTROL", "RECOVERY", "STOPPED"};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) static int stats_show(struct seq_file *seq, void *v)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) struct c4iw_dev *dev = seq->private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) seq_printf(seq, " Object: %10s %10s %10s %10s\n", "Total", "Current",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) "Max", "Fail");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) seq_printf(seq, " PDID: %10llu %10llu %10llu %10llu\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) dev->rdev.stats.pd.total, dev->rdev.stats.pd.cur,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) dev->rdev.stats.pd.max, dev->rdev.stats.pd.fail);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) seq_printf(seq, " QID: %10llu %10llu %10llu %10llu\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) dev->rdev.stats.qid.total, dev->rdev.stats.qid.cur,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) dev->rdev.stats.qid.max, dev->rdev.stats.qid.fail);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) seq_printf(seq, " SRQS: %10llu %10llu %10llu %10llu\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) dev->rdev.stats.srqt.total, dev->rdev.stats.srqt.cur,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) dev->rdev.stats.srqt.max, dev->rdev.stats.srqt.fail);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) seq_printf(seq, " TPTMEM: %10llu %10llu %10llu %10llu\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) dev->rdev.stats.stag.total, dev->rdev.stats.stag.cur,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) dev->rdev.stats.stag.max, dev->rdev.stats.stag.fail);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) seq_printf(seq, " PBLMEM: %10llu %10llu %10llu %10llu\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) dev->rdev.stats.pbl.total, dev->rdev.stats.pbl.cur,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) dev->rdev.stats.pbl.max, dev->rdev.stats.pbl.fail);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) seq_printf(seq, " RQTMEM: %10llu %10llu %10llu %10llu\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) dev->rdev.stats.rqt.total, dev->rdev.stats.rqt.cur,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) dev->rdev.stats.rqt.max, dev->rdev.stats.rqt.fail);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) seq_printf(seq, " OCQPMEM: %10llu %10llu %10llu %10llu\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) dev->rdev.stats.ocqp.total, dev->rdev.stats.ocqp.cur,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) dev->rdev.stats.ocqp.max, dev->rdev.stats.ocqp.fail);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) seq_printf(seq, " DB FULL: %10llu\n", dev->rdev.stats.db_full);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) seq_printf(seq, " DB EMPTY: %10llu\n", dev->rdev.stats.db_empty);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) seq_printf(seq, " DB DROP: %10llu\n", dev->rdev.stats.db_drop);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) seq_printf(seq, " DB State: %s Transitions %llu FC Interruptions %llu\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) db_state_str[dev->db_state],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) dev->rdev.stats.db_state_transitions,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) dev->rdev.stats.db_fc_interruptions);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) seq_printf(seq, "TCAM_FULL: %10llu\n", dev->rdev.stats.tcam_full);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) seq_printf(seq, "ACT_OFLD_CONN_FAILS: %10llu\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) dev->rdev.stats.act_ofld_conn_fails);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) seq_printf(seq, "PAS_OFLD_CONN_FAILS: %10llu\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) dev->rdev.stats.pas_ofld_conn_fails);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) seq_printf(seq, "NEG_ADV_RCVD: %10llu\n", dev->rdev.stats.neg_adv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) seq_printf(seq, "AVAILABLE IRD: %10u\n", dev->avail_ird);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) static int stats_open(struct inode *inode, struct file *file)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) return single_open(file, stats_show, inode->i_private);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) static ssize_t stats_clear(struct file *file, const char __user *buf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) size_t count, loff_t *pos)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) struct c4iw_dev *dev = ((struct seq_file *)file->private_data)->private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) mutex_lock(&dev->rdev.stats.lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) dev->rdev.stats.pd.max = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) dev->rdev.stats.pd.fail = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) dev->rdev.stats.qid.max = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) dev->rdev.stats.qid.fail = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) dev->rdev.stats.stag.max = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) dev->rdev.stats.stag.fail = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) dev->rdev.stats.pbl.max = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) dev->rdev.stats.pbl.fail = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) dev->rdev.stats.rqt.max = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) dev->rdev.stats.rqt.fail = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) dev->rdev.stats.rqt.max = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) dev->rdev.stats.rqt.fail = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) dev->rdev.stats.ocqp.max = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) dev->rdev.stats.ocqp.fail = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) dev->rdev.stats.db_full = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) dev->rdev.stats.db_empty = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) dev->rdev.stats.db_drop = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) dev->rdev.stats.db_state_transitions = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) dev->rdev.stats.tcam_full = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) dev->rdev.stats.act_ofld_conn_fails = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) dev->rdev.stats.pas_ofld_conn_fails = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) mutex_unlock(&dev->rdev.stats.lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) static const struct file_operations stats_debugfs_fops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) .owner = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) .open = stats_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) .release = single_release,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) .read = seq_read,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) .llseek = seq_lseek,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) .write = stats_clear,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) static int dump_ep(struct c4iw_ep *ep, struct c4iw_debugfs_data *epd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) int space;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) int cc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) space = epd->bufsize - epd->pos - 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) if (space == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) if (ep->com.local_addr.ss_family == AF_INET) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) struct sockaddr_in *lsin;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) struct sockaddr_in *rsin;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) struct sockaddr_in *m_lsin;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) struct sockaddr_in *m_rsin;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) set_ep_sin_addrs(ep, &lsin, &rsin, &m_lsin, &m_rsin);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) cc = snprintf(epd->buf + epd->pos, space,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) "ep %p cm_id %p qp %p state %d flags 0x%lx "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) "history 0x%lx hwtid %d atid %d "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) "conn_na %u abort_na %u "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) "%pI4:%d/%d <-> %pI4:%d/%d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) ep, ep->com.cm_id, ep->com.qp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) (int)ep->com.state, ep->com.flags,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) ep->com.history, ep->hwtid, ep->atid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) ep->stats.connect_neg_adv,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) ep->stats.abort_neg_adv,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) &lsin->sin_addr, ntohs(lsin->sin_port),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) ntohs(m_lsin->sin_port),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) &rsin->sin_addr, ntohs(rsin->sin_port),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) ntohs(m_rsin->sin_port));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) struct sockaddr_in6 *lsin6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) struct sockaddr_in6 *rsin6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) struct sockaddr_in6 *m_lsin6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) struct sockaddr_in6 *m_rsin6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) set_ep_sin6_addrs(ep, &lsin6, &rsin6, &m_lsin6, &m_rsin6);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) cc = snprintf(epd->buf + epd->pos, space,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) "ep %p cm_id %p qp %p state %d flags 0x%lx "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) "history 0x%lx hwtid %d atid %d "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) "conn_na %u abort_na %u "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) "%pI6:%d/%d <-> %pI6:%d/%d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) ep, ep->com.cm_id, ep->com.qp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) (int)ep->com.state, ep->com.flags,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) ep->com.history, ep->hwtid, ep->atid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) ep->stats.connect_neg_adv,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) ep->stats.abort_neg_adv,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) &lsin6->sin6_addr, ntohs(lsin6->sin6_port),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) ntohs(m_lsin6->sin6_port),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) &rsin6->sin6_addr, ntohs(rsin6->sin6_port),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) ntohs(m_rsin6->sin6_port));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) if (cc < space)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) epd->pos += cc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) static
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) int dump_listen_ep(struct c4iw_listen_ep *ep, struct c4iw_debugfs_data *epd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) int space;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) int cc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) space = epd->bufsize - epd->pos - 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) if (space == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) if (ep->com.local_addr.ss_family == AF_INET) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) struct sockaddr_in *lsin = (struct sockaddr_in *)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) &ep->com.cm_id->local_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) struct sockaddr_in *m_lsin = (struct sockaddr_in *)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) &ep->com.cm_id->m_local_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) cc = snprintf(epd->buf + epd->pos, space,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) "ep %p cm_id %p state %d flags 0x%lx stid %d "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) "backlog %d %pI4:%d/%d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) ep, ep->com.cm_id, (int)ep->com.state,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) ep->com.flags, ep->stid, ep->backlog,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) &lsin->sin_addr, ntohs(lsin->sin_port),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) ntohs(m_lsin->sin_port));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) struct sockaddr_in6 *lsin6 = (struct sockaddr_in6 *)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) &ep->com.cm_id->local_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) struct sockaddr_in6 *m_lsin6 = (struct sockaddr_in6 *)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) &ep->com.cm_id->m_local_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) cc = snprintf(epd->buf + epd->pos, space,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) "ep %p cm_id %p state %d flags 0x%lx stid %d "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) "backlog %d %pI6:%d/%d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) ep, ep->com.cm_id, (int)ep->com.state,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) ep->com.flags, ep->stid, ep->backlog,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) &lsin6->sin6_addr, ntohs(lsin6->sin6_port),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) ntohs(m_lsin6->sin6_port));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) if (cc < space)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) epd->pos += cc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) static int ep_release(struct inode *inode, struct file *file)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) struct c4iw_debugfs_data *epd = file->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) if (!epd) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) pr_info("%s null qpd?\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664) vfree(epd->buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) kfree(epd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) static int ep_open(struct inode *inode, struct file *file)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) struct c4iw_ep *ep;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672) struct c4iw_listen_ep *lep;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) unsigned long index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) struct c4iw_debugfs_data *epd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) int ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) int count = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) epd = kmalloc(sizeof(*epd), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) if (!epd) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680) ret = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) epd->devp = inode->i_private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) epd->pos = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) xa_for_each(&epd->devp->hwtids, index, ep)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687) count++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) xa_for_each(&epd->devp->atids, index, ep)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) count++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) xa_for_each(&epd->devp->stids, index, lep)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691) count++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) epd->bufsize = count * 240;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694) epd->buf = vmalloc(epd->bufsize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) if (!epd->buf) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) ret = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) goto err1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) xa_lock_irq(&epd->devp->hwtids);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701) xa_for_each(&epd->devp->hwtids, index, ep)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) dump_ep(ep, epd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) xa_unlock_irq(&epd->devp->hwtids);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704) xa_lock_irq(&epd->devp->atids);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705) xa_for_each(&epd->devp->atids, index, ep)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) dump_ep(ep, epd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707) xa_unlock_irq(&epd->devp->atids);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708) xa_lock_irq(&epd->devp->stids);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709) xa_for_each(&epd->devp->stids, index, lep)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710) dump_listen_ep(lep, epd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711) xa_unlock_irq(&epd->devp->stids);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713) file->private_data = epd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) err1:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716) kfree(epd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721) static const struct file_operations ep_debugfs_fops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722) .owner = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723) .open = ep_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724) .release = ep_release,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725) .read = debugfs_read,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728) static void setup_debugfs(struct c4iw_dev *devp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730) debugfs_create_file_size("qps", S_IWUSR, devp->debugfs_root,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731) (void *)devp, &qp_debugfs_fops, 4096);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733) debugfs_create_file_size("stags", S_IWUSR, devp->debugfs_root,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734) (void *)devp, &stag_debugfs_fops, 4096);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736) debugfs_create_file_size("stats", S_IWUSR, devp->debugfs_root,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737) (void *)devp, &stats_debugfs_fops, 4096);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739) debugfs_create_file_size("eps", S_IWUSR, devp->debugfs_root,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740) (void *)devp, &ep_debugfs_fops, 4096);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742) if (c4iw_wr_log)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743) debugfs_create_file_size("wr_log", S_IWUSR, devp->debugfs_root,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744) (void *)devp, &wr_log_debugfs_fops, 4096);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747) void c4iw_release_dev_ucontext(struct c4iw_rdev *rdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748) struct c4iw_dev_ucontext *uctx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750) struct list_head *pos, *nxt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751) struct c4iw_qid_list *entry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) mutex_lock(&uctx->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754) list_for_each_safe(pos, nxt, &uctx->qpids) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755) entry = list_entry(pos, struct c4iw_qid_list, entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756) list_del_init(&entry->entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757) if (!(entry->qid & rdev->qpmask)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758) c4iw_put_resource(&rdev->resource.qid_table,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759) entry->qid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760) mutex_lock(&rdev->stats.lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761) rdev->stats.qid.cur -= rdev->qpmask + 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762) mutex_unlock(&rdev->stats.lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764) kfree(entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767) list_for_each_safe(pos, nxt, &uctx->cqids) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 768) entry = list_entry(pos, struct c4iw_qid_list, entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 769) list_del_init(&entry->entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 770) kfree(entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 771) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 772) mutex_unlock(&uctx->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 773) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 774)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 775) void c4iw_init_dev_ucontext(struct c4iw_rdev *rdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 776) struct c4iw_dev_ucontext *uctx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 777) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 778) INIT_LIST_HEAD(&uctx->qpids);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 779) INIT_LIST_HEAD(&uctx->cqids);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 780) mutex_init(&uctx->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 781) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 782)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 783) /* Caller takes care of locking if needed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 784) static int c4iw_rdev_open(struct c4iw_rdev *rdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 785) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 786) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 787) unsigned int factor;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 788)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 789) c4iw_init_dev_ucontext(rdev, &rdev->uctx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 790)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 791) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 792) * This implementation assumes udb_density == ucq_density! Eventually
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 793) * we might need to support this but for now fail the open. Also the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 794) * cqid and qpid range must match for now.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 795) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 796) if (rdev->lldi.udb_density != rdev->lldi.ucq_density) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 797) pr_err("%s: unsupported udb/ucq densities %u/%u\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 798) pci_name(rdev->lldi.pdev), rdev->lldi.udb_density,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 799) rdev->lldi.ucq_density);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 800) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 801) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 802) if (rdev->lldi.vr->qp.start != rdev->lldi.vr->cq.start ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 803) rdev->lldi.vr->qp.size != rdev->lldi.vr->cq.size) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 804) pr_err("%s: unsupported qp and cq id ranges qp start %u size %u cq start %u size %u\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 805) pci_name(rdev->lldi.pdev), rdev->lldi.vr->qp.start,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 806) rdev->lldi.vr->qp.size, rdev->lldi.vr->cq.size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 807) rdev->lldi.vr->cq.size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 808) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 809) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 810)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 811) /* This implementation requires a sge_host_page_size <= PAGE_SIZE. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 812) if (rdev->lldi.sge_host_page_size > PAGE_SIZE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 813) pr_err("%s: unsupported sge host page size %u\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 814) pci_name(rdev->lldi.pdev),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 815) rdev->lldi.sge_host_page_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 816) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 817) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 818)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 819) factor = PAGE_SIZE / rdev->lldi.sge_host_page_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 820) rdev->qpmask = (rdev->lldi.udb_density * factor) - 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 821) rdev->cqmask = (rdev->lldi.ucq_density * factor) - 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 822)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 823) pr_debug("dev %s stag start 0x%0x size 0x%0x num stags %d pbl start 0x%0x size 0x%0x rq start 0x%0x size 0x%0x qp qid start %u size %u cq qid start %u size %u srq size %u\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 824) pci_name(rdev->lldi.pdev), rdev->lldi.vr->stag.start,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 825) rdev->lldi.vr->stag.size, c4iw_num_stags(rdev),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 826) rdev->lldi.vr->pbl.start,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 827) rdev->lldi.vr->pbl.size, rdev->lldi.vr->rq.start,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 828) rdev->lldi.vr->rq.size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 829) rdev->lldi.vr->qp.start,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 830) rdev->lldi.vr->qp.size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 831) rdev->lldi.vr->cq.start,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 832) rdev->lldi.vr->cq.size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 833) rdev->lldi.vr->srq.size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 834) pr_debug("udb %pR db_reg %p gts_reg %p qpmask 0x%x cqmask 0x%x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 835) &rdev->lldi.pdev->resource[2],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 836) rdev->lldi.db_reg, rdev->lldi.gts_reg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 837) rdev->qpmask, rdev->cqmask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 838)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 839) if (c4iw_num_stags(rdev) == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 840) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 841)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 842) rdev->stats.pd.total = T4_MAX_NUM_PD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 843) rdev->stats.stag.total = rdev->lldi.vr->stag.size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 844) rdev->stats.pbl.total = rdev->lldi.vr->pbl.size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 845) rdev->stats.rqt.total = rdev->lldi.vr->rq.size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 846) rdev->stats.srqt.total = rdev->lldi.vr->srq.size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 847) rdev->stats.ocqp.total = rdev->lldi.vr->ocq.size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 848) rdev->stats.qid.total = rdev->lldi.vr->qp.size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 849)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 850) err = c4iw_init_resource(rdev, c4iw_num_stags(rdev),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 851) T4_MAX_NUM_PD, rdev->lldi.vr->srq.size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 852) if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 853) pr_err("error %d initializing resources\n", err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 854) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 855) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 856) err = c4iw_pblpool_create(rdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 857) if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 858) pr_err("error %d initializing pbl pool\n", err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 859) goto destroy_resource;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 860) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 861) err = c4iw_rqtpool_create(rdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 862) if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 863) pr_err("error %d initializing rqt pool\n", err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 864) goto destroy_pblpool;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 865) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 866) err = c4iw_ocqp_pool_create(rdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 867) if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 868) pr_err("error %d initializing ocqp pool\n", err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 869) goto destroy_rqtpool;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 870) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 871) rdev->status_page = (struct t4_dev_status_page *)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 872) __get_free_page(GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 873) if (!rdev->status_page) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 874) err = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 875) goto destroy_ocqp_pool;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 876) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 877) rdev->status_page->qp_start = rdev->lldi.vr->qp.start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 878) rdev->status_page->qp_size = rdev->lldi.vr->qp.size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 879) rdev->status_page->cq_start = rdev->lldi.vr->cq.start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 880) rdev->status_page->cq_size = rdev->lldi.vr->cq.size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 881) rdev->status_page->write_cmpl_supported = rdev->lldi.write_cmpl_support;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 882)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 883) if (c4iw_wr_log) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 884) rdev->wr_log = kcalloc(1 << c4iw_wr_log_size_order,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 885) sizeof(*rdev->wr_log),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 886) GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 887) if (rdev->wr_log) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 888) rdev->wr_log_size = 1 << c4iw_wr_log_size_order;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 889) atomic_set(&rdev->wr_log_idx, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 890) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 891) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 892)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 893) rdev->free_workq = create_singlethread_workqueue("iw_cxgb4_free");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 894) if (!rdev->free_workq) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 895) err = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 896) goto err_free_status_page_and_wr_log;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 897) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 898)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 899) rdev->status_page->db_off = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 900)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 901) init_completion(&rdev->rqt_compl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 902) init_completion(&rdev->pbl_compl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 903) kref_init(&rdev->rqt_kref);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 904) kref_init(&rdev->pbl_kref);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 905)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 906) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 907) err_free_status_page_and_wr_log:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 908) if (c4iw_wr_log && rdev->wr_log)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 909) kfree(rdev->wr_log);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 910) free_page((unsigned long)rdev->status_page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 911) destroy_ocqp_pool:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 912) c4iw_ocqp_pool_destroy(rdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 913) destroy_rqtpool:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 914) c4iw_rqtpool_destroy(rdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 915) destroy_pblpool:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 916) c4iw_pblpool_destroy(rdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 917) destroy_resource:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 918) c4iw_destroy_resource(&rdev->resource);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 919) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 920) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 921)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 922) static void c4iw_rdev_close(struct c4iw_rdev *rdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 923) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 924) kfree(rdev->wr_log);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 925) c4iw_release_dev_ucontext(rdev, &rdev->uctx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 926) free_page((unsigned long)rdev->status_page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 927) c4iw_pblpool_destroy(rdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 928) c4iw_rqtpool_destroy(rdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 929) wait_for_completion(&rdev->pbl_compl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 930) wait_for_completion(&rdev->rqt_compl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 931) c4iw_ocqp_pool_destroy(rdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 932) destroy_workqueue(rdev->free_workq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 933) c4iw_destroy_resource(&rdev->resource);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 934) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 935)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 936) void c4iw_dealloc(struct uld_ctx *ctx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 937) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 938) c4iw_rdev_close(&ctx->dev->rdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 939) WARN_ON(!xa_empty(&ctx->dev->cqs));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 940) WARN_ON(!xa_empty(&ctx->dev->qps));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 941) WARN_ON(!xa_empty(&ctx->dev->mrs));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 942) wait_event(ctx->dev->wait, xa_empty(&ctx->dev->hwtids));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 943) WARN_ON(!xa_empty(&ctx->dev->stids));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 944) WARN_ON(!xa_empty(&ctx->dev->atids));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 945) if (ctx->dev->rdev.bar2_kva)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 946) iounmap(ctx->dev->rdev.bar2_kva);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 947) if (ctx->dev->rdev.oc_mw_kva)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 948) iounmap(ctx->dev->rdev.oc_mw_kva);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 949) ib_dealloc_device(&ctx->dev->ibdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 950) ctx->dev = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 951) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 952)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 953) static void c4iw_remove(struct uld_ctx *ctx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 954) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 955) pr_debug("c4iw_dev %p\n", ctx->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 956) debugfs_remove_recursive(ctx->dev->debugfs_root);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 957) c4iw_unregister_device(ctx->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 958) c4iw_dealloc(ctx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 959) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 960)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 961) static int rdma_supported(const struct cxgb4_lld_info *infop)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 962) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 963) return infop->vr->stag.size > 0 && infop->vr->pbl.size > 0 &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 964) infop->vr->rq.size > 0 && infop->vr->qp.size > 0 &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 965) infop->vr->cq.size > 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 966) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 967)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 968) static struct c4iw_dev *c4iw_alloc(const struct cxgb4_lld_info *infop)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 969) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 970) struct c4iw_dev *devp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 971) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 972)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 973) if (!rdma_supported(infop)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 974) pr_info("%s: RDMA not supported on this device\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 975) pci_name(infop->pdev));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 976) return ERR_PTR(-ENOSYS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 977) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 978) if (!ocqp_supported(infop))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 979) pr_info("%s: On-Chip Queues not supported on this device\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 980) pci_name(infop->pdev));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 981)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 982) devp = ib_alloc_device(c4iw_dev, ibdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 983) if (!devp) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 984) pr_err("Cannot allocate ib device\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 985) return ERR_PTR(-ENOMEM);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 986) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 987) devp->rdev.lldi = *infop;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 988)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 989) /* init various hw-queue params based on lld info */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 990) pr_debug("Ing. padding boundary is %d, egrsstatuspagesize = %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 991) devp->rdev.lldi.sge_ingpadboundary,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 992) devp->rdev.lldi.sge_egrstatuspagesize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 993)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 994) devp->rdev.hw_queue.t4_eq_status_entries =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 995) devp->rdev.lldi.sge_egrstatuspagesize / 64;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 996) devp->rdev.hw_queue.t4_max_eq_size = 65520;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 997) devp->rdev.hw_queue.t4_max_iq_size = 65520;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 998) devp->rdev.hw_queue.t4_max_rq_size = 8192 -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 999) devp->rdev.hw_queue.t4_eq_status_entries - 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1000) devp->rdev.hw_queue.t4_max_sq_size =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1001) devp->rdev.hw_queue.t4_max_eq_size -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1002) devp->rdev.hw_queue.t4_eq_status_entries - 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1003) devp->rdev.hw_queue.t4_max_qp_depth =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1004) devp->rdev.hw_queue.t4_max_rq_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1005) devp->rdev.hw_queue.t4_max_cq_depth =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1006) devp->rdev.hw_queue.t4_max_iq_size - 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1007) devp->rdev.hw_queue.t4_stat_len =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1008) devp->rdev.lldi.sge_egrstatuspagesize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1009)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1010) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1011) * For T5/T6 devices, we map all of BAR2 with WC.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1012) * For T4 devices with onchip qp mem, we map only that part
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1013) * of BAR2 with WC.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1014) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1015) devp->rdev.bar2_pa = pci_resource_start(devp->rdev.lldi.pdev, 2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1016) if (!is_t4(devp->rdev.lldi.adapter_type)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1017) devp->rdev.bar2_kva = ioremap_wc(devp->rdev.bar2_pa,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1018) pci_resource_len(devp->rdev.lldi.pdev, 2));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1019) if (!devp->rdev.bar2_kva) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1020) pr_err("Unable to ioremap BAR2\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1021) ib_dealloc_device(&devp->ibdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1022) return ERR_PTR(-EINVAL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1023) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1024) } else if (ocqp_supported(infop)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1025) devp->rdev.oc_mw_pa =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1026) pci_resource_start(devp->rdev.lldi.pdev, 2) +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1027) pci_resource_len(devp->rdev.lldi.pdev, 2) -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1028) roundup_pow_of_two(devp->rdev.lldi.vr->ocq.size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1029) devp->rdev.oc_mw_kva = ioremap_wc(devp->rdev.oc_mw_pa,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1030) devp->rdev.lldi.vr->ocq.size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1031) if (!devp->rdev.oc_mw_kva) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1032) pr_err("Unable to ioremap onchip mem\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1033) ib_dealloc_device(&devp->ibdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1034) return ERR_PTR(-EINVAL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1035) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1036) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1037)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1038) pr_debug("ocq memory: hw_start 0x%x size %u mw_pa 0x%lx mw_kva %p\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1039) devp->rdev.lldi.vr->ocq.start, devp->rdev.lldi.vr->ocq.size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1040) devp->rdev.oc_mw_pa, devp->rdev.oc_mw_kva);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1041)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1042) ret = c4iw_rdev_open(&devp->rdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1043) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1044) pr_err("Unable to open CXIO rdev err %d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1045) ib_dealloc_device(&devp->ibdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1046) return ERR_PTR(ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1047) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1048)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1049) xa_init_flags(&devp->cqs, XA_FLAGS_LOCK_IRQ);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1050) xa_init_flags(&devp->qps, XA_FLAGS_LOCK_IRQ);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1051) xa_init_flags(&devp->mrs, XA_FLAGS_LOCK_IRQ);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1052) xa_init_flags(&devp->hwtids, XA_FLAGS_LOCK_IRQ);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1053) xa_init_flags(&devp->atids, XA_FLAGS_LOCK_IRQ);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1054) xa_init_flags(&devp->stids, XA_FLAGS_LOCK_IRQ);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1055) mutex_init(&devp->rdev.stats.lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1056) mutex_init(&devp->db_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1057) INIT_LIST_HEAD(&devp->db_fc_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1058) init_waitqueue_head(&devp->wait);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1059) devp->avail_ird = devp->rdev.lldi.max_ird_adapter;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1060)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1061) if (c4iw_debugfs_root) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1062) devp->debugfs_root = debugfs_create_dir(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1063) pci_name(devp->rdev.lldi.pdev),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1064) c4iw_debugfs_root);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1065) setup_debugfs(devp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1066) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1067)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1068)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1069) return devp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1070) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1071)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1072) static void *c4iw_uld_add(const struct cxgb4_lld_info *infop)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1073) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1074) struct uld_ctx *ctx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1075) static int vers_printed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1076) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1077)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1078) if (!vers_printed++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1079) pr_info("Chelsio T4/T5 RDMA Driver - version %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1080) DRV_VERSION);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1081)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1082) ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1083) if (!ctx) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1084) ctx = ERR_PTR(-ENOMEM);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1085) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1086) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1087) ctx->lldi = *infop;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1088)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1089) pr_debug("found device %s nchan %u nrxq %u ntxq %u nports %u\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1090) pci_name(ctx->lldi.pdev),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1091) ctx->lldi.nchan, ctx->lldi.nrxq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1092) ctx->lldi.ntxq, ctx->lldi.nports);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1093)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1094) mutex_lock(&dev_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1095) list_add_tail(&ctx->entry, &uld_ctx_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1096) mutex_unlock(&dev_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1097)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1098) for (i = 0; i < ctx->lldi.nrxq; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1099) pr_debug("rxqid[%u] %u\n", i, ctx->lldi.rxq_ids[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1100) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1101) return ctx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1102) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1103)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1104) static inline struct sk_buff *copy_gl_to_skb_pkt(const struct pkt_gl *gl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1105) const __be64 *rsp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1106) u32 pktshift)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1107) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1108) struct sk_buff *skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1109)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1110) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1111) * Allocate space for cpl_pass_accept_req which will be synthesized by
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1112) * driver. Once the driver synthesizes the request the skb will go
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1113) * through the regular cpl_pass_accept_req processing.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1114) * The math here assumes sizeof cpl_pass_accept_req >= sizeof
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1115) * cpl_rx_pkt.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1116) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1117) skb = alloc_skb(gl->tot_len + sizeof(struct cpl_pass_accept_req) +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1118) sizeof(struct rss_header) - pktshift, GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1119) if (unlikely(!skb))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1120) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1121)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1122) __skb_put(skb, gl->tot_len + sizeof(struct cpl_pass_accept_req) +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1123) sizeof(struct rss_header) - pktshift);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1124)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1125) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1126) * This skb will contain:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1127) * rss_header from the rspq descriptor (1 flit)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1128) * cpl_rx_pkt struct from the rspq descriptor (2 flits)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1129) * space for the difference between the size of an
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1130) * rx_pkt and pass_accept_req cpl (1 flit)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1131) * the packet data from the gl
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1132) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1133) skb_copy_to_linear_data(skb, rsp, sizeof(struct cpl_pass_accept_req) +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1134) sizeof(struct rss_header));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1135) skb_copy_to_linear_data_offset(skb, sizeof(struct rss_header) +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1136) sizeof(struct cpl_pass_accept_req),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1137) gl->va + pktshift,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1138) gl->tot_len - pktshift);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1139) return skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1140) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1141)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1142) static inline int recv_rx_pkt(struct c4iw_dev *dev, const struct pkt_gl *gl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1143) const __be64 *rsp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1144) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1145) unsigned int opcode = *(u8 *)rsp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1146) struct sk_buff *skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1147)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1148) if (opcode != CPL_RX_PKT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1149) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1150)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1151) skb = copy_gl_to_skb_pkt(gl , rsp, dev->rdev.lldi.sge_pktshift);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1152) if (skb == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1153) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1154)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1155) if (c4iw_handlers[opcode] == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1156) pr_info("%s no handler opcode 0x%x...\n", __func__, opcode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1157) kfree_skb(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1158) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1159) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1160) c4iw_handlers[opcode](dev, skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1161) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1162) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1163) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1164) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1165)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1166) static int c4iw_uld_rx_handler(void *handle, const __be64 *rsp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1167) const struct pkt_gl *gl)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1168) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1169) struct uld_ctx *ctx = handle;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1170) struct c4iw_dev *dev = ctx->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1171) struct sk_buff *skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1172) u8 opcode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1173)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1174) if (gl == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1175) /* omit RSS and rsp_ctrl at end of descriptor */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1176) unsigned int len = 64 - sizeof(struct rsp_ctrl) - 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1177)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1178) skb = alloc_skb(256, GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1179) if (!skb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1180) goto nomem;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1181) __skb_put(skb, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1182) skb_copy_to_linear_data(skb, &rsp[1], len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1183) } else if (gl == CXGB4_MSG_AN) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1184) const struct rsp_ctrl *rc = (void *)rsp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1185)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1186) u32 qid = be32_to_cpu(rc->pldbuflen_qid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1187) c4iw_ev_handler(dev, qid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1188) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1189) } else if (unlikely(*(u8 *)rsp != *(u8 *)gl->va)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1190) if (recv_rx_pkt(dev, gl, rsp))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1191) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1192)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1193) pr_info("%s: unexpected FL contents at %p, RSS %#llx, FL %#llx, len %u\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1194) pci_name(ctx->lldi.pdev), gl->va,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1195) be64_to_cpu(*rsp),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1196) be64_to_cpu(*(__force __be64 *)gl->va),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1197) gl->tot_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1198)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1199) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1200) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1201) skb = cxgb4_pktgl_to_skb(gl, 128, 128);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1202) if (unlikely(!skb))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1203) goto nomem;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1204) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1205)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1206) opcode = *(u8 *)rsp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1207) if (c4iw_handlers[opcode]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1208) c4iw_handlers[opcode](dev, skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1209) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1210) pr_info("%s no handler opcode 0x%x...\n", __func__, opcode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1211) kfree_skb(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1212) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1213)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1214) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1215) nomem:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1216) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1217) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1218)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1219) static int c4iw_uld_state_change(void *handle, enum cxgb4_state new_state)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1220) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1221) struct uld_ctx *ctx = handle;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1222)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1223) pr_debug("new_state %u\n", new_state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1224) switch (new_state) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1225) case CXGB4_STATE_UP:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1226) pr_info("%s: Up\n", pci_name(ctx->lldi.pdev));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1227) if (!ctx->dev) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1228) ctx->dev = c4iw_alloc(&ctx->lldi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1229) if (IS_ERR(ctx->dev)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1230) pr_err("%s: initialization failed: %ld\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1231) pci_name(ctx->lldi.pdev),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1232) PTR_ERR(ctx->dev));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1233) ctx->dev = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1234) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1235) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1236)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1237) INIT_WORK(&ctx->reg_work, c4iw_register_device);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1238) queue_work(reg_workq, &ctx->reg_work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1239) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1240) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1241) case CXGB4_STATE_DOWN:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1242) pr_info("%s: Down\n", pci_name(ctx->lldi.pdev));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1243) if (ctx->dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1244) c4iw_remove(ctx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1245) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1246) case CXGB4_STATE_FATAL_ERROR:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1247) case CXGB4_STATE_START_RECOVERY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1248) pr_info("%s: Fatal Error\n", pci_name(ctx->lldi.pdev));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1249) if (ctx->dev) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1250) struct ib_event event = {};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1251)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1252) ctx->dev->rdev.flags |= T4_FATAL_ERROR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1253) event.event = IB_EVENT_DEVICE_FATAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1254) event.device = &ctx->dev->ibdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1255) ib_dispatch_event(&event);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1256) c4iw_remove(ctx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1257) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1258) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1259) case CXGB4_STATE_DETACH:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1260) pr_info("%s: Detach\n", pci_name(ctx->lldi.pdev));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1261) if (ctx->dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1262) c4iw_remove(ctx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1263) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1264) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1265) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1266) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1267)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1268) static void stop_queues(struct uld_ctx *ctx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1269) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1270) struct c4iw_qp *qp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1271) unsigned long index, flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1272)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1273) xa_lock_irqsave(&ctx->dev->qps, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1274) ctx->dev->rdev.stats.db_state_transitions++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1275) ctx->dev->db_state = STOPPED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1276) if (ctx->dev->rdev.flags & T4_STATUS_PAGE_DISABLED) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1277) xa_for_each(&ctx->dev->qps, index, qp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1278) t4_disable_wq_db(&qp->wq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1279) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1280) ctx->dev->rdev.status_page->db_off = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1281) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1282) xa_unlock_irqrestore(&ctx->dev->qps, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1283) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1284)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1285) static void resume_rc_qp(struct c4iw_qp *qp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1286) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1287) spin_lock(&qp->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1288) t4_ring_sq_db(&qp->wq, qp->wq.sq.wq_pidx_inc, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1289) qp->wq.sq.wq_pidx_inc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1290) t4_ring_rq_db(&qp->wq, qp->wq.rq.wq_pidx_inc, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1291) qp->wq.rq.wq_pidx_inc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1292) spin_unlock(&qp->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1293) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1294)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1295) static void resume_a_chunk(struct uld_ctx *ctx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1296) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1297) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1298) struct c4iw_qp *qp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1299)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1300) for (i = 0; i < DB_FC_RESUME_SIZE; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1301) qp = list_first_entry(&ctx->dev->db_fc_list, struct c4iw_qp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1302) db_fc_entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1303) list_del_init(&qp->db_fc_entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1304) resume_rc_qp(qp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1305) if (list_empty(&ctx->dev->db_fc_list))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1306) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1307) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1308) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1309)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1310) static void resume_queues(struct uld_ctx *ctx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1311) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1312) xa_lock_irq(&ctx->dev->qps);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1313) if (ctx->dev->db_state != STOPPED)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1314) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1315) ctx->dev->db_state = FLOW_CONTROL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1316) while (1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1317) if (list_empty(&ctx->dev->db_fc_list)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1318) struct c4iw_qp *qp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1319) unsigned long index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1320)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1321) WARN_ON(ctx->dev->db_state != FLOW_CONTROL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1322) ctx->dev->db_state = NORMAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1323) ctx->dev->rdev.stats.db_state_transitions++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1324) if (ctx->dev->rdev.flags & T4_STATUS_PAGE_DISABLED) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1325) xa_for_each(&ctx->dev->qps, index, qp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1326) t4_enable_wq_db(&qp->wq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1327) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1328) ctx->dev->rdev.status_page->db_off = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1329) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1330) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1331) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1332) if (cxgb4_dbfifo_count(ctx->dev->rdev.lldi.ports[0], 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1333) < (ctx->dev->rdev.lldi.dbfifo_int_thresh <<
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1334) DB_FC_DRAIN_THRESH)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1335) resume_a_chunk(ctx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1336) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1337) if (!list_empty(&ctx->dev->db_fc_list)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1338) xa_unlock_irq(&ctx->dev->qps);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1339) if (DB_FC_RESUME_DELAY) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1340) set_current_state(TASK_UNINTERRUPTIBLE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1341) schedule_timeout(DB_FC_RESUME_DELAY);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1342) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1343) xa_lock_irq(&ctx->dev->qps);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1344) if (ctx->dev->db_state != FLOW_CONTROL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1345) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1346) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1347) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1348) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1349) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1350) if (ctx->dev->db_state != NORMAL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1351) ctx->dev->rdev.stats.db_fc_interruptions++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1352) xa_unlock_irq(&ctx->dev->qps);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1353) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1354)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1355) struct qp_list {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1356) unsigned idx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1357) struct c4iw_qp **qps;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1358) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1359)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1360) static void deref_qps(struct qp_list *qp_list)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1361) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1362) int idx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1363)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1364) for (idx = 0; idx < qp_list->idx; idx++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1365) c4iw_qp_rem_ref(&qp_list->qps[idx]->ibqp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1366) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1367)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1368) static void recover_lost_dbs(struct uld_ctx *ctx, struct qp_list *qp_list)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1369) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1370) int idx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1371) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1372)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1373) for (idx = 0; idx < qp_list->idx; idx++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1374) struct c4iw_qp *qp = qp_list->qps[idx];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1375)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1376) xa_lock_irq(&qp->rhp->qps);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1377) spin_lock(&qp->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1378) ret = cxgb4_sync_txq_pidx(qp->rhp->rdev.lldi.ports[0],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1379) qp->wq.sq.qid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1380) t4_sq_host_wq_pidx(&qp->wq),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1381) t4_sq_wq_size(&qp->wq));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1382) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1383) pr_err("%s: Fatal error - DB overflow recovery failed - error syncing SQ qid %u\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1384) pci_name(ctx->lldi.pdev), qp->wq.sq.qid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1385) spin_unlock(&qp->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1386) xa_unlock_irq(&qp->rhp->qps);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1387) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1388) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1389) qp->wq.sq.wq_pidx_inc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1390)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1391) ret = cxgb4_sync_txq_pidx(qp->rhp->rdev.lldi.ports[0],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1392) qp->wq.rq.qid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1393) t4_rq_host_wq_pidx(&qp->wq),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1394) t4_rq_wq_size(&qp->wq));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1395)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1396) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1397) pr_err("%s: Fatal error - DB overflow recovery failed - error syncing RQ qid %u\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1398) pci_name(ctx->lldi.pdev), qp->wq.rq.qid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1399) spin_unlock(&qp->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1400) xa_unlock_irq(&qp->rhp->qps);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1401) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1402) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1403) qp->wq.rq.wq_pidx_inc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1404) spin_unlock(&qp->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1405) xa_unlock_irq(&qp->rhp->qps);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1406)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1407) /* Wait for the dbfifo to drain */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1408) while (cxgb4_dbfifo_count(qp->rhp->rdev.lldi.ports[0], 1) > 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1409) set_current_state(TASK_UNINTERRUPTIBLE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1410) schedule_timeout(usecs_to_jiffies(10));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1411) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1412) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1413) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1414)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1415) static void recover_queues(struct uld_ctx *ctx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1416) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1417) struct c4iw_qp *qp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1418) unsigned long index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1419) int count = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1420) struct qp_list qp_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1421) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1422)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1423) /* slow everybody down */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1424) set_current_state(TASK_UNINTERRUPTIBLE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1425) schedule_timeout(usecs_to_jiffies(1000));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1426)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1427) /* flush the SGE contexts */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1428) ret = cxgb4_flush_eq_cache(ctx->dev->rdev.lldi.ports[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1429) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1430) pr_err("%s: Fatal error - DB overflow recovery failed\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1431) pci_name(ctx->lldi.pdev));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1432) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1433) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1434)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1435) /* Count active queues so we can build a list of queues to recover */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1436) xa_lock_irq(&ctx->dev->qps);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1437) WARN_ON(ctx->dev->db_state != STOPPED);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1438) ctx->dev->db_state = RECOVERY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1439) xa_for_each(&ctx->dev->qps, index, qp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1440) count++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1441)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1442) qp_list.qps = kcalloc(count, sizeof(*qp_list.qps), GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1443) if (!qp_list.qps) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1444) xa_unlock_irq(&ctx->dev->qps);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1445) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1446) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1447) qp_list.idx = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1448)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1449) /* add and ref each qp so it doesn't get freed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1450) xa_for_each(&ctx->dev->qps, index, qp) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1451) c4iw_qp_add_ref(&qp->ibqp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1452) qp_list.qps[qp_list.idx++] = qp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1453) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1454)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1455) xa_unlock_irq(&ctx->dev->qps);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1456)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1457) /* now traverse the list in a safe context to recover the db state*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1458) recover_lost_dbs(ctx, &qp_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1459)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1460) /* we're almost done! deref the qps and clean up */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1461) deref_qps(&qp_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1462) kfree(qp_list.qps);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1463)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1464) xa_lock_irq(&ctx->dev->qps);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1465) WARN_ON(ctx->dev->db_state != RECOVERY);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1466) ctx->dev->db_state = STOPPED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1467) xa_unlock_irq(&ctx->dev->qps);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1468) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1469)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1470) static int c4iw_uld_control(void *handle, enum cxgb4_control control, ...)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1471) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1472) struct uld_ctx *ctx = handle;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1473)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1474) switch (control) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1475) case CXGB4_CONTROL_DB_FULL:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1476) stop_queues(ctx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1477) ctx->dev->rdev.stats.db_full++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1478) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1479) case CXGB4_CONTROL_DB_EMPTY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1480) resume_queues(ctx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1481) mutex_lock(&ctx->dev->rdev.stats.lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1482) ctx->dev->rdev.stats.db_empty++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1483) mutex_unlock(&ctx->dev->rdev.stats.lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1484) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1485) case CXGB4_CONTROL_DB_DROP:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1486) recover_queues(ctx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1487) mutex_lock(&ctx->dev->rdev.stats.lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1488) ctx->dev->rdev.stats.db_drop++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1489) mutex_unlock(&ctx->dev->rdev.stats.lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1490) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1491) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1492) pr_warn("%s: unknown control cmd %u\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1493) pci_name(ctx->lldi.pdev), control);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1494) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1495) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1496) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1497) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1498)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1499) static struct cxgb4_uld_info c4iw_uld_info = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1500) .name = DRV_NAME,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1501) .nrxq = MAX_ULD_QSETS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1502) .ntxq = MAX_ULD_QSETS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1503) .rxq_size = 511,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1504) .ciq = true,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1505) .lro = false,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1506) .add = c4iw_uld_add,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1507) .rx_handler = c4iw_uld_rx_handler,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1508) .state_change = c4iw_uld_state_change,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1509) .control = c4iw_uld_control,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1510) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1511)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1512) void _c4iw_free_wr_wait(struct kref *kref)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1513) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1514) struct c4iw_wr_wait *wr_waitp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1515)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1516) wr_waitp = container_of(kref, struct c4iw_wr_wait, kref);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1517) pr_debug("Free wr_wait %p\n", wr_waitp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1518) kfree(wr_waitp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1519) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1520)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1521) struct c4iw_wr_wait *c4iw_alloc_wr_wait(gfp_t gfp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1522) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1523) struct c4iw_wr_wait *wr_waitp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1524)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1525) wr_waitp = kzalloc(sizeof(*wr_waitp), gfp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1526) if (wr_waitp) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1527) kref_init(&wr_waitp->kref);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1528) pr_debug("wr_wait %p\n", wr_waitp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1529) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1530) return wr_waitp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1531) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1532)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1533) static int __init c4iw_init_module(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1534) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1535) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1536)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1537) err = c4iw_cm_init();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1538) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1539) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1540)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1541) c4iw_debugfs_root = debugfs_create_dir(DRV_NAME, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1542)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1543) reg_workq = create_singlethread_workqueue("Register_iWARP_device");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1544) if (!reg_workq) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1545) pr_err("Failed creating workqueue to register iwarp device\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1546) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1547) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1548)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1549) cxgb4_register_uld(CXGB4_ULD_RDMA, &c4iw_uld_info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1550)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1551) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1552) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1553)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1554) static void __exit c4iw_exit_module(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1555) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1556) struct uld_ctx *ctx, *tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1557)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1558) mutex_lock(&dev_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1559) list_for_each_entry_safe(ctx, tmp, &uld_ctx_list, entry) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1560) if (ctx->dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1561) c4iw_remove(ctx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1562) kfree(ctx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1563) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1564) mutex_unlock(&dev_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1565) flush_workqueue(reg_workq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1566) destroy_workqueue(reg_workq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1567) cxgb4_unregister_uld(CXGB4_ULD_RDMA);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1568) c4iw_cm_term();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1569) debugfs_remove_recursive(c4iw_debugfs_root);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1570) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1571)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1572) module_init(c4iw_init_module);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1573) module_exit(c4iw_exit_module);
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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