mirrors
/
linux-stable
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
1
0
Fork 0
Code Issues Releases Wiki Activity

IB/hfi1: Add kernel receive context info to debugfs 

Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Kaike Wan <kaike.wan@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Kaike Wan 2017-08-13 08:09:04 -07:00 committed by Doug Ledford
parent 6165467921
commit bf808b5039
3 changed files with 107 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

47
drivers/infiniband/hw/hfi1/debugfs.c
View File

@ -368,6 +368,52 @@ DEBUGFS_SEQ_FILE_OPS(sdes);
DEBUGFS_SEQ_FILE_OPEN(sdes)
DEBUGFS_FILE_OPS(sdes);
static void *_rcds_seq_start(struct seq_file *s, loff_t *pos)
{
struct hfi1_ibdev *ibd;
struct hfi1_devdata *dd;
ibd = (struct hfi1_ibdev *)s->private;
dd = dd_from_dev(ibd);
if (!dd->rcd || *pos >= dd->n_krcv_queues)
return NULL;
return pos;
}
static void *_rcds_seq_next(struct seq_file *s, void *v, loff_t *pos)
{
struct hfi1_ibdev *ibd = (struct hfi1_ibdev *)s->private;
struct hfi1_devdata *dd = dd_from_dev(ibd);
++*pos;
if (!dd->rcd || *pos >= dd->n_krcv_queues)
return NULL;
return pos;
}
static void _rcds_seq_stop(struct seq_file *s, void *v)
{
}
static int _rcds_seq_show(struct seq_file *s, void *v)
{
struct hfi1_ibdev *ibd = (struct hfi1_ibdev *)s->private;
struct hfi1_devdata *dd = dd_from_dev(ibd);
struct hfi1_ctxtdata *rcd;
loff_t *spos = v;
loff_t i = *spos;
rcd = hfi1_rcd_get_by_index(dd, i);
if (rcd)
seqfile_dump_rcd(s, rcd);
hfi1_rcd_put(rcd);
return 0;
}
DEBUGFS_SEQ_FILE_OPS(rcds);
DEBUGFS_SEQ_FILE_OPEN(rcds)
DEBUGFS_FILE_OPS(rcds);
/* read the per-device counters */
static ssize_t dev_counters_read(struct file *file, char __user *buf,
size_t count, loff_t *ppos)
@ -1321,6 +1367,7 @@ void hfi1_dbg_ibdev_init(struct hfi1_ibdev *ibd)
DEBUGFS_SEQ_FILE_CREATE(ctx_stats, ibd->hfi1_ibdev_dbg, ibd);
DEBUGFS_SEQ_FILE_CREATE(qp_stats, ibd->hfi1_ibdev_dbg, ibd);
DEBUGFS_SEQ_FILE_CREATE(sdes, ibd->hfi1_ibdev_dbg, ibd);
DEBUGFS_SEQ_FILE_CREATE(rcds, ibd->hfi1_ibdev_dbg, ibd);
DEBUGFS_SEQ_FILE_CREATE(sdma_cpu_list, ibd->hfi1_ibdev_dbg, ibd);
/* dev counter files */
for (i = 0; i < ARRAY_SIZE(cntr_ops); i++)

59
drivers/infiniband/hw/hfi1/driver.c
View File

@ -1689,3 +1689,62 @@ int process_receive_invalid(struct hfi1_packet *packet)
rhf_rcv_type(packet->rhf));
return RHF_RCV_CONTINUE;
}
void seqfile_dump_rcd(struct seq_file *s, struct hfi1_ctxtdata *rcd)
{
struct hfi1_packet packet;
struct ps_mdata mdata;
seq_printf(s, "Rcd %u: RcvHdr cnt %u entsize %u %s head %llu tail %llu\n",
rcd->ctxt, rcd->rcvhdrq_cnt, rcd->rcvhdrqentsize,
HFI1_CAP_KGET_MASK(rcd->flags, DMA_RTAIL) ?
"dma_rtail" : "nodma_rtail",
read_uctxt_csr(rcd->dd, rcd->ctxt, RCV_HDR_HEAD) &
RCV_HDR_HEAD_HEAD_MASK,
read_uctxt_csr(rcd->dd, rcd->ctxt, RCV_HDR_TAIL));
init_packet(rcd, &packet);
init_ps_mdata(&mdata, &packet);
while (1) {
struct hfi1_devdata *dd = rcd->dd;
__le32 *rhf_addr = (__le32 *)rcd->rcvhdrq + mdata.ps_head +
dd->rhf_offset;
struct ib_header *hdr;
u64 rhf = rhf_to_cpu(rhf_addr);
u32 etype = rhf_rcv_type(rhf), qpn;
u8 opcode;
u32 psn;
u8 lnh;
if (ps_done(&mdata, rhf, rcd))
break;
if (ps_skip(&mdata, rhf, rcd))
goto next;
if (etype > RHF_RCV_TYPE_IB)
goto next;
packet.hdr = hfi1_get_msgheader(dd, rhf_addr);
hdr = packet.hdr;
lnh = be16_to_cpu(hdr->lrh[0]) & 3;
if (lnh == HFI1_LRH_BTH)
packet.ohdr = &hdr->u.oth;
else if (lnh == HFI1_LRH_GRH)
packet.ohdr = &hdr->u.l.oth;
else
goto next; /* just in case */
opcode = (be32_to_cpu(packet.ohdr->bth[0]) >> 24);
qpn = be32_to_cpu(packet.ohdr->bth[1]) & RVT_QPN_MASK;
psn = mask_psn(be32_to_cpu(packet.ohdr->bth[2]));
seq_printf(s, "\tEnt %u: opcode 0x%x, qpn 0x%x, psn 0x%x\n",
mdata.ps_head, opcode, qpn, psn);
next:
update_ps_mdata(&mdata, rcd);
}
}

1
drivers/infiniband/hw/hfi1/hfi.h
View File

@ -1987,6 +1987,7 @@ int process_receive_error(struct hfi1_packet *packet);
int kdeth_process_expected(struct hfi1_packet *packet);
int kdeth_process_eager(struct hfi1_packet *packet);
int process_receive_invalid(struct hfi1_packet *packet);
void seqfile_dump_rcd(struct seq_file *s, struct hfi1_ctxtdata *rcd);
/* global module parameter variables */
extern unsigned int hfi1_max_mtu;