#include <linux/moduleparam.h>
#include <linux/debugfs.h>
#include <linux/vmalloc.h>
+#include <linux/math64.h>
#include <rdma/ib_verbs.h>
MODULE_PARM_DESC(allow_db_coalescing_on_t5,
"Allow DB Coalescing on T5 (default = 0)");
+int c4iw_wr_log = 0;
+module_param(c4iw_wr_log, int, 0444);
+MODULE_PARM_DESC(c4iw_wr_log, "Enables logging of work request timing data.");
+
+int c4iw_wr_log_size_order = 12;
+module_param(c4iw_wr_log_size_order, int, 0444);
+MODULE_PARM_DESC(c4iw_wr_log_size_order,
+ "Number of entries (log2) in the work request timing log.");
+
struct uld_ctx {
struct list_head entry;
struct cxgb4_lld_info lldi;
return simple_read_from_buffer(buf, count, ppos, d->buf, d->pos);
}
+void c4iw_log_wr_stats(struct t4_wq *wq, struct t4_cqe *cqe)
+{
+ struct wr_log_entry le;
+ int idx;
+
+ if (!wq->rdev->wr_log)
+ return;
+
+ idx = (atomic_inc_return(&wq->rdev->wr_log_idx) - 1) &
+ (wq->rdev->wr_log_size - 1);
+ le.poll_sge_ts = cxgb4_read_sge_timestamp(wq->rdev->lldi.ports[0]);
+ getnstimeofday(&le.poll_host_ts);
+ le.valid = 1;
+ le.cqe_sge_ts = CQE_TS(cqe);
+ if (SQ_TYPE(cqe)) {
+ le.qid = wq->sq.qid;
+ le.opcode = CQE_OPCODE(cqe);
+ le.post_host_ts = wq->sq.sw_sq[wq->sq.cidx].host_ts;
+ le.post_sge_ts = wq->sq.sw_sq[wq->sq.cidx].sge_ts;
+ le.wr_id = CQE_WRID_SQ_IDX(cqe);
+ } else {
+ le.qid = wq->rq.qid;
+ le.opcode = FW_RI_RECEIVE;
+ le.post_host_ts = wq->rq.sw_rq[wq->rq.cidx].host_ts;
+ le.post_sge_ts = wq->rq.sw_rq[wq->rq.cidx].sge_ts;
+ le.wr_id = CQE_WRID_MSN(cqe);
+ }
+ wq->rdev->wr_log[idx] = le;
+}
+
+static int wr_log_show(struct seq_file *seq, void *v)
+{
+ struct c4iw_dev *dev = seq->private;
+ struct timespec prev_ts = {0, 0};
+ struct wr_log_entry *lep;
+ int prev_ts_set = 0;
+ int idx, end;
+
+#define ts2ns(ts) div64_ul((ts) * dev->rdev.lldi.cclk_ps, 1000)
+
+ idx = atomic_read(&dev->rdev.wr_log_idx) &
+ (dev->rdev.wr_log_size - 1);
+ end = idx - 1;
+ if (end < 0)
+ end = dev->rdev.wr_log_size - 1;
+ lep = &dev->rdev.wr_log[idx];
+ while (idx != end) {
+ if (lep->valid) {
+ if (!prev_ts_set) {
+ prev_ts_set = 1;
+ prev_ts = lep->poll_host_ts;
+ }
+ seq_printf(seq, "%04u: sec %lu nsec %lu qid %u opcode "
+ "%u %s 0x%x host_wr_delta sec %lu nsec %lu "
+ "post_sge_ts 0x%llx cqe_sge_ts 0x%llx "
+ "poll_sge_ts 0x%llx post_poll_delta_ns %llu "
+ "cqe_poll_delta_ns %llu\n",
+ idx,
+ timespec_sub(lep->poll_host_ts,
+ prev_ts).tv_sec,
+ timespec_sub(lep->poll_host_ts,
+ prev_ts).tv_nsec,
+ lep->qid, lep->opcode,
+ lep->opcode == FW_RI_RECEIVE ?
+ "msn" : "wrid",
+ lep->wr_id,
+ timespec_sub(lep->poll_host_ts,
+ lep->post_host_ts).tv_sec,
+ timespec_sub(lep->poll_host_ts,
+ lep->post_host_ts).tv_nsec,
+ lep->post_sge_ts, lep->cqe_sge_ts,
+ lep->poll_sge_ts,
+ ts2ns(lep->poll_sge_ts - lep->post_sge_ts),
+ ts2ns(lep->poll_sge_ts - lep->cqe_sge_ts));
+ prev_ts = lep->poll_host_ts;
+ }
+ idx++;
+ if (idx > (dev->rdev.wr_log_size - 1))
+ idx = 0;
+ lep = &dev->rdev.wr_log[idx];
+ }
+#undef ts2ns
+ return 0;
+}
+
+static int wr_log_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, wr_log_show, inode->i_private);
+}
+
+static ssize_t wr_log_clear(struct file *file, const char __user *buf,
+ size_t count, loff_t *pos)
+{
+ struct c4iw_dev *dev = ((struct seq_file *)file->private_data)->private;
+ int i;
+
+ if (dev->rdev.wr_log)
+ for (i = 0; i < dev->rdev.wr_log_size; i++)
+ dev->rdev.wr_log[i].valid = 0;
+ return count;
+}
+
+static const struct file_operations wr_log_debugfs_fops = {
+ .owner = THIS_MODULE,
+ .open = wr_log_open,
+ .release = single_release,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .write = wr_log_clear,
+};
+
static int dump_qp(int id, void *p, void *data)
{
struct c4iw_qp *qp = p;
struct c4iw_debugfs_data *stagd = data;
int space;
int cc;
+ struct fw_ri_tpte tpte;
+ int ret;
space = stagd->bufsize - stagd->pos - 1;
if (space == 0)
return 1;
- cc = snprintf(stagd->buf + stagd->pos, space, "0x%x\n", id<<8);
+ ret = cxgb4_read_tpte(stagd->devp->rdev.lldi.ports[0], (u32)id<<8,
+ (__be32 *)&tpte);
+ if (ret) {
+ dev_err(&stagd->devp->rdev.lldi.pdev->dev,
+ "%s cxgb4_read_tpte err %d\n", __func__, ret);
+ return ret;
+ }
+ cc = snprintf(stagd->buf + stagd->pos, space,
+ "stag: idx 0x%x valid %d key 0x%x state %d pdid %d "
+ "perm 0x%x ps %d len 0x%llx va 0x%llx\n",
+ (u32)id<<8,
+ G_FW_RI_TPTE_VALID(ntohl(tpte.valid_to_pdid)),
+ G_FW_RI_TPTE_STAGKEY(ntohl(tpte.valid_to_pdid)),
+ G_FW_RI_TPTE_STAGSTATE(ntohl(tpte.valid_to_pdid)),
+ G_FW_RI_TPTE_PDID(ntohl(tpte.valid_to_pdid)),
+ G_FW_RI_TPTE_PERM(ntohl(tpte.locread_to_qpid)),
+ G_FW_RI_TPTE_PS(ntohl(tpte.locread_to_qpid)),
+ ((u64)ntohl(tpte.len_hi) << 32) | ntohl(tpte.len_lo),
+ ((u64)ntohl(tpte.va_hi) << 32) | ntohl(tpte.va_lo_fbo));
if (cc < space)
stagd->pos += cc;
return 0;
printk(KERN_INFO "%s null stagd?\n", __func__);
return 0;
}
- kfree(stagd->buf);
+ vfree(stagd->buf);
kfree(stagd);
return 0;
}
idr_for_each(&stagd->devp->mmidr, count_idrs, &count);
spin_unlock_irq(&stagd->devp->lock);
- stagd->bufsize = count * sizeof("0x12345678\n");
- stagd->buf = kmalloc(stagd->bufsize, GFP_KERNEL);
+ stagd->bufsize = count * 256;
+ stagd->buf = vmalloc(stagd->bufsize);
if (!stagd->buf) {
ret = -ENOMEM;
goto err1;
dev->rdev.stats.act_ofld_conn_fails);
seq_printf(seq, "PAS_OFLD_CONN_FAILS: %10llu\n",
dev->rdev.stats.pas_ofld_conn_fails);
+ seq_printf(seq, "AVAILABLE IRD: %10u\n", dev->avail_ird);
return 0;
}
if (de && de->d_inode)
de->d_inode->i_size = 4096;
+ if (c4iw_wr_log) {
+ de = debugfs_create_file("wr_log", S_IWUSR, devp->debugfs_root,
+ (void *)devp, &wr_log_debugfs_fops);
+ if (de && de->d_inode)
+ de->d_inode->i_size = 4096;
+ }
return 0;
}
pr_err(MOD "error allocating status page\n");
goto err4;
}
+
+ if (c4iw_wr_log) {
+ rdev->wr_log = kzalloc((1 << c4iw_wr_log_size_order) *
+ sizeof(*rdev->wr_log), GFP_KERNEL);
+ if (rdev->wr_log) {
+ rdev->wr_log_size = 1 << c4iw_wr_log_size_order;
+ atomic_set(&rdev->wr_log_idx, 0);
+ } else {
+ pr_err(MOD "error allocating wr_log. Logging disabled\n");
+ }
+ }
+
rdev->status_page->db_off = 0;
+
return 0;
err4:
c4iw_rqtpool_destroy(rdev);
static void c4iw_rdev_close(struct c4iw_rdev *rdev)
{
+ kfree(rdev->wr_log);
free_page((unsigned long)rdev->status_page);
c4iw_pblpool_destroy(rdev);
c4iw_rqtpool_destroy(rdev);
}
devp->rdev.lldi = *infop;
+ /* init various hw-queue params based on lld info */
+ PDBG("%s: Ing. padding boundary is %d, egrsstatuspagesize = %d\n",
+ __func__, devp->rdev.lldi.sge_ingpadboundary,
+ devp->rdev.lldi.sge_egrstatuspagesize);
+
+ devp->rdev.hw_queue.t4_eq_status_entries =
+ devp->rdev.lldi.sge_ingpadboundary > 64 ? 2 : 1;
+ devp->rdev.hw_queue.t4_max_eq_size = 65520;
+ devp->rdev.hw_queue.t4_max_iq_size = 65520;
+ devp->rdev.hw_queue.t4_max_rq_size = 8192 -
+ devp->rdev.hw_queue.t4_eq_status_entries - 1;
+ devp->rdev.hw_queue.t4_max_sq_size =
+ devp->rdev.hw_queue.t4_max_eq_size -
+ devp->rdev.hw_queue.t4_eq_status_entries - 1;
+ devp->rdev.hw_queue.t4_max_qp_depth =
+ devp->rdev.hw_queue.t4_max_rq_size;
+ devp->rdev.hw_queue.t4_max_cq_depth =
+ devp->rdev.hw_queue.t4_max_iq_size - 2;
+ devp->rdev.hw_queue.t4_stat_len =
+ devp->rdev.lldi.sge_egrstatuspagesize;
+
/*
* For T5 devices, we map all of BAR2 with WC.
* For T4 devices with onchip qp mem, we map only that part
mutex_init(&devp->rdev.stats.lock);
mutex_init(&devp->db_mutex);
INIT_LIST_HEAD(&devp->db_fc_list);
+ devp->avail_ird = devp->rdev.lldi.max_ird_adapter;
if (c4iw_debugfs_root) {
devp->debugfs_root = debugfs_create_dir(
git.openpandora.org / pandora-kernel.git / blobdiff