From: Laurent Vivier <lviv...@redhat.com>
Signed-off-by: Laurent Vivier <lviv...@redhat.com>
Reviewed-by: Eric Blake <ebl...@redhat.com>
Signed-off-by: David Gibson <da...@gibson.dropbear.id.au>
---
hw/scsi/spapr_vscsi.c | 88 +++++++++++++++++++++------------------------------
hw/scsi/trace-events | 27 ++++++++++++++++
2 files changed, 63 insertions(+), 52 deletions(-)
diff --git a/hw/scsi/spapr_vscsi.c b/hw/scsi/spapr_vscsi.c
index 8fbd50f..d8a2296 100644
--- a/hw/scsi/spapr_vscsi.c
+++ b/hw/scsi/spapr_vscsi.c
@@ -42,19 +42,10 @@
#include "hw/ppc/spapr.h"
#include "hw/ppc/spapr_vio.h"
#include "viosrp.h"
+#include "trace.h"
#include <libfdt.h>
-/*#define DEBUG_VSCSI*/
-
-#ifdef DEBUG_VSCSI
-#define DPRINTF(fmt, ...) \
- do { fprintf(stderr, fmt, ## __VA_ARGS__); } while (0)
-#else
-#define DPRINTF(fmt, ...) \
- do { } while (0)
-#endif
-
/*
* Virtual SCSI device
*/
@@ -237,8 +228,7 @@ static int vscsi_send_rsp(VSCSIState *s, vscsi_req *req,
int total_len = sizeof(iu->srp.rsp);
uint8_t sol_not = iu->srp.cmd.sol_not;
- DPRINTF("VSCSI: Sending resp status: 0x%x, "
- "res_in: %d, res_out: %d\n", status, res_in, res_out);
+ trace_spapr_vscsi_send_rsp(status, res_in, res_out);
memset(iu, 0, sizeof(struct srp_rsp));
iu->srp.rsp.opcode = SRP_RSP;
@@ -298,13 +288,13 @@ static int vscsi_fetch_desc(VSCSIState *s, struct
vscsi_req *req,
switch (req->dma_fmt) {
case SRP_NO_DATA_DESC: {
- DPRINTF("VSCSI: no data descriptor\n");
+ trace_spapr_vscsi_fetch_desc_no_data();
return 0;
}
case SRP_DATA_DESC_DIRECT: {
memcpy(ret, cmd->add_data + req->cdb_offset, sizeof(*ret));
assert(req->cur_desc_num == 0);
- DPRINTF("VSCSI: direct segment\n");
+ trace_spapr_vscsi_fetch_desc_direct();
break;
}
case SRP_DATA_DESC_INDIRECT: {
@@ -312,30 +302,29 @@ static int vscsi_fetch_desc(VSCSIState *s, struct
vscsi_req *req,
(cmd->add_data + req->cdb_offset);
if (n < req->local_desc) {
*ret = tmp->desc_list[n];
- DPRINTF("VSCSI: indirect segment local tag=0x%x desc#%d/%d\n",
- req->qtag, n, req->local_desc);
-
+ trace_spapr_vscsi_fetch_desc_indirect(req->qtag, n,
+ req->local_desc);
} else if (n < req->total_desc) {
int rc;
struct srp_direct_buf tbl_desc = vscsi_swap_desc(tmp->table_desc);
unsigned desc_offset = n * sizeof(struct srp_direct_buf);
if (desc_offset >= tbl_desc.len) {
- DPRINTF("VSCSI: #%d is ouf of range (%d bytes)\n",
- n, desc_offset);
+ trace_spapr_vscsi_fetch_desc_out_of_range(n, desc_offset);
return -1;
}
rc = spapr_vio_dma_read(&s->vdev, tbl_desc.va + desc_offset,
ret, sizeof(struct srp_direct_buf));
if (rc) {
- DPRINTF("VSCSI: spapr_vio_dma_read -> %d reading ext_desc\n",
- rc);
+ trace_spapr_vscsi_fetch_desc_dma_read_error(rc);
return -1;
}
- DPRINTF("VSCSI: indirect segment ext. tag=0x%x desc#%d/%d {
va=%"PRIx64" len=%x }\n",
- req->qtag, n, req->total_desc, tbl_desc.va, tbl_desc.len);
+ trace_spapr_vscsi_fetch_desc_indirect_seg_ext(req->qtag, n,
+ req->total_desc,
+ tbl_desc.va,
+ tbl_desc.len);
} else {
- DPRINTF("VSCSI: Out of descriptors !\n");
+ trace_spapr_vscsi_fetch_desc_out_of_desc();
return 0;
}
break;
@@ -347,15 +336,16 @@ static int vscsi_fetch_desc(VSCSIState *s, struct
vscsi_req *req,
*ret = vscsi_swap_desc(*ret);
if (buf_offset > ret->len) {
- DPRINTF(" offset=%x is out of a descriptor #%d boundary=%x\n",
- buf_offset, req->cur_desc_num, ret->len);
+ trace_spapr_vscsi_fetch_desc_out_of_desc_boundary(buf_offset,
+ req->cur_desc_num,
+ ret->len);
return -1;
}
ret->va += buf_offset;
ret->len -= buf_offset;
- DPRINTF(" cur=%d offs=%x ret { va=%"PRIx64" len=%x }\n",
- req->cur_desc_num, req->cur_desc_offset, ret->va, ret->len);
+ trace_spapr_vscsi_fetch_desc_done(req->cur_desc_num, req->cur_desc_offset,
+ ret->va, ret->len);
return ret->len ? 1 : 0;
}
@@ -398,7 +388,7 @@ static int vscsi_srp_indirect_data(VSCSIState *s, vscsi_req
*req,
int rc = 0;
uint32_t llen, total = 0;
- DPRINTF("VSCSI: indirect segment 0x%x bytes\n", len);
+ trace_spapr_vscsi_srp_indirect_data(len);
/* While we have data ... */
while (len) {
@@ -417,11 +407,10 @@ static int vscsi_srp_indirect_data(VSCSIState *s,
vscsi_req *req,
rc = spapr_vio_dma_write(&s->vdev, md.va, buf, llen);
}
if (rc) {
- DPRINTF("VSCSI: spapr_vio_dma_r/w(%d) -> %d\n", req->writing, rc);
+ trace_spapr_vscsi_srp_indirect_data_rw(req->writing, rc);
break;
}
- DPRINTF("VSCSI: data: %02x %02x %02x %02x...\n",
- buf[0], buf[1], buf[2], buf[3]);
+ trace_spapr_vscsi_srp_indirect_data_buf(buf[0], buf[1], buf[2],
buf[3]);
len -= llen;
buf += llen;
@@ -447,7 +436,7 @@ static int vscsi_srp_transfer_data(VSCSIState *s, vscsi_req
*req,
switch (req->dma_fmt) {
case SRP_NO_DATA_DESC:
- DPRINTF("VSCSI: no data desc transfer, skipping 0x%x bytes\n", len);
+ trace_spapr_vscsi_srp_transfer_data(len);
break;
case SRP_DATA_DESC_DIRECT:
err = vscsi_srp_direct_data(s, req, buf, len);
@@ -527,8 +516,7 @@ static void vscsi_transfer_data(SCSIRequest *sreq, uint32_t
len)
uint8_t *buf;
int rc = 0;
- DPRINTF("VSCSI: SCSI xfer complete tag=0x%x len=0x%x, req=%p\n",
- sreq->tag, len, req);
+ trace_spapr_vscsi_transfer_data(sreq->tag, len, req);
if (req == NULL) {
fprintf(stderr, "VSCSI: Can't find request for tag 0x%x\n", sreq->tag);
return;
@@ -557,8 +545,7 @@ static void vscsi_command_complete(SCSIRequest *sreq,
uint32_t status, size_t re
vscsi_req *req = sreq->hba_private;
int32_t res_in = 0, res_out = 0;
- DPRINTF("VSCSI: SCSI cmd complete, tag=0x%x status=0x%x, req=%p\n",
- sreq->tag, status, req);
+ trace_spapr_vscsi_command_complete(sreq->tag, status, req);
if (req == NULL) {
fprintf(stderr, "VSCSI: Can't find request for tag 0x%x\n", sreq->tag);
return;
@@ -567,16 +554,15 @@ static void vscsi_command_complete(SCSIRequest *sreq,
uint32_t status, size_t re
if (status == CHECK_CONDITION) {
req->senselen = scsi_req_get_sense(req->sreq, req->sense,
sizeof(req->sense));
- DPRINTF("VSCSI: Sense data, %d bytes:\n", req->senselen);
- DPRINTF(" %02x %02x %02x %02x %02x %02x %02x %02x\n",
+ trace_spapr_vscsi_command_complete_sense_data1(req->senselen,
req->sense[0], req->sense[1], req->sense[2], req->sense[3],
req->sense[4], req->sense[5], req->sense[6], req->sense[7]);
- DPRINTF(" %02x %02x %02x %02x %02x %02x %02x %02x\n",
+ trace_spapr_vscsi_command_complete_sense_data2(
req->sense[8], req->sense[9], req->sense[10], req->sense[11],
req->sense[12], req->sense[13], req->sense[14],
req->sense[15]);
}
- DPRINTF("VSCSI: Command complete err=%d\n", status);
+ trace_spapr_vscsi_command_complete_status(status);
if (status == 0) {
/* We handle overflows, not underflows for normal commands,
* but hopefully nobody cares
@@ -635,8 +621,8 @@ static void vscsi_save_request(QEMUFile *f, SCSIRequest
*sreq)
vmstate_save_state(f, &vmstate_spapr_vscsi_req, req, NULL);
- DPRINTF("VSCSI: saving tag=%u, current desc#%d, offset=%x\n",
- req->qtag, req->cur_desc_num, req->cur_desc_offset);
+ trace_spapr_vscsi_save_request(req->qtag, req->cur_desc_num,
+ req->cur_desc_offset);
}
static void *vscsi_load_request(QEMUFile *f, SCSIRequest *sreq)
@@ -660,8 +646,8 @@ static void *vscsi_load_request(QEMUFile *f, SCSIRequest
*sreq)
req->sreq = scsi_req_ref(sreq);
- DPRINTF("VSCSI: restoring tag=%u, current desc#%d, offset=%x\n",
- req->qtag, req->cur_desc_num, req->cur_desc_offset);
+ trace_spapr_vscsi_load_request(req->qtag, req->cur_desc_num,
+ req->cur_desc_offset);
return req;
}
@@ -672,7 +658,7 @@ static void vscsi_process_login(VSCSIState *s, vscsi_req
*req)
struct srp_login_rsp *rsp = &iu->srp.login_rsp;
uint64_t tag = iu->srp.rsp.tag;
- DPRINTF("VSCSI: Got login, sendin response !\n");
+ trace_spapr_vscsi__process_login();
/* TODO handle case that requested size is wrong and
* buffer format is wrong
@@ -795,8 +781,7 @@ static int vscsi_queue_cmd(VSCSIState *s, vscsi_req *req)
sdev = vscsi_device_find(&s->bus, be64_to_cpu(srp->cmd.lun), &lun);
if (!sdev) {
- DPRINTF("VSCSI: Command for lun %08" PRIx64 " with no drive\n",
- be64_to_cpu(srp->cmd.lun));
+ trace_spapr_vscsi_queue_cmd_no_drive(be64_to_cpu(srp->cmd.lun));
if (srp->cmd.cdb[0] == INQUIRY) {
vscsi_inquiry_no_target(s, req);
} else {
@@ -808,9 +793,8 @@ static int vscsi_queue_cmd(VSCSIState *s, vscsi_req *req)
req->sreq = scsi_req_new(sdev, req->qtag, lun, srp->cmd.cdb, req);
n = scsi_req_enqueue(req->sreq);
- DPRINTF("VSCSI: Queued command tag 0x%x CMD 0x%x=%s LUN %d ret: %d\n",
- req->qtag, srp->cmd.cdb[0], scsi_command_name(srp->cmd.cdb[0]),
- lun, n);
+ trace_spapr_vscsi_queue_cmd(req->qtag, srp->cmd.cdb[0],
+ scsi_command_name(srp->cmd.cdb[0]), lun, n);
if (n) {
/* Transfer direction must be set before preprocessing the
@@ -1141,7 +1125,7 @@ static int vscsi_do_crq(struct VIOsPAPRDevice *dev,
uint8_t *crq_data)
crq.s.IU_length = be16_to_cpu(crq.s.IU_length);
crq.s.IU_data_ptr = be64_to_cpu(crq.s.IU_data_ptr);
- DPRINTF("VSCSI: do_crq %02x %02x ...\n", crq.raw[0], crq.raw[1]);
+ trace_spapr_vscsi_do_crq(crq.raw[0], crq.raw[1]);
switch (crq.s.valid) {
case 0xc0: /* Init command/response */
diff --git a/hw/scsi/trace-events b/hw/scsi/trace-events
index ed64858..d1995b8 100644
--- a/hw/scsi/trace-events
+++ b/hw/scsi/trace-events
@@ -202,3 +202,30 @@ esp_pci_dma_abort(uint32_t val) "ABORT (%.8x)"
esp_pci_dma_start(uint32_t val) "START (%.8x)"
esp_pci_sbac_read(uint32_t reg) "sbac: 0x%8.8x"
esp_pci_sbac_write(uint32_t reg, uint32_t val) "sbac: 0x%8.8x -> 0x%8.8x"
+
+# hw/scsi/spapr_vscsi.c
+spapr_vscsi_send_rsp(uint8_t status, int32_t res_in, int32_t res_out) "status:
0x%x, res_in: %"PRId32", res_out: %"PRId32
+spapr_vscsi_fetch_desc_no_data(void) "no data descriptor"
+spapr_vscsi_fetch_desc_direct(void) "direct segment"
+spapr_vscsi_fetch_desc_indirect(uint32_t qtag, unsigned desc, unsigned
local_desc) "indirect segment local tag=0x%"PRIx32" desc#%u/%u"
+spapr_vscsi_fetch_desc_out_of_range(unsigned desc, unsigned desc_offset) "#%u
is ouf of range (%u bytes)"
+spapr_vscsi_fetch_desc_dma_read_error(int rc) "spapr_vio_dma_read -> %d
reading ext_desc"
+spapr_vscsi_fetch_desc_indirect_seg_ext(uint32_t qtag, unsigned n, unsigned
desc, uint64_t va, uint32_t len) "indirect segment ext. tag=0x%"PRIx32"
desc#%u/%u { va=0x%"PRIx64" len=0x%"PRIx32" }"
+spapr_vscsi_fetch_desc_out_of_desc(void) "Out of descriptors !"
+spapr_vscsi_fetch_desc_out_of_desc_boundary(unsigned offset, unsigned desc,
uint32_t len) " offset=0x%x is out of a descriptor #%u boundary=%"PRIx32
+spapr_vscsi_fetch_desc_done(unsigned desc_num, unsigned desc_offset, uint64_t
va, uint32_t len) " cur=%u offs=0x%x ret { va=0x%"PRIx64" len=0x%"PRIx32" }"
+spapr_vscsi_srp_indirect_data(uint32_t len) "indirect segment 0x%"PRIx32"
bytes"
+spapr_vscsi_srp_indirect_data_rw(int writing, int rc) "spapr_vio_dma_r/w(%d)
-> %d"
+spapr_vscsi_srp_indirect_data_buf(unsigned a, unsigned b, unsigned c, unsigned
d) " data: %02x %02x %02x %02x..."
+spapr_vscsi_srp_transfer_data(uint32_t len) "no data desc transfer, skipping
0x%"PRIx32" bytes"
+spapr_vscsi_transfer_data(uint32_t tag, uint32_t len, void *req) "SCSI xfer
complete tag=0x%"PRIx32" len=0x%"PRIx32", req=%p"
+spapr_vscsi_command_complete(uint32_t tag, uint32_t status, void *req) "SCSI
cmd complete, tag=0x%"PRIx32" status=0x%"PRIx32", req=%p"
+spapr_vscsi_command_complete_sense_data1(uint32_t len, unsigned s0, unsigned
s1, unsigned s2, unsigned s3, unsigned s4, unsigned s5, unsigned s6, unsigned
s7) "Sense data, %d bytes: %02x %02x %02x %02x %02x %02x %02x %02x"
+spapr_vscsi_command_complete_sense_data2(unsigned s8, unsigned s9, unsigned
s10, unsigned s11, unsigned s12, unsigned s13, unsigned s14, unsigned s15)
" %02x %02x %02x %02x %02x %02x %02x %02x"
+spapr_vscsi_command_complete_status(uint32_t status) "Command complete
err=%"PRIu32
+spapr_vscsi_save_request(uint32_t qtag, unsigned desc, unsigned offset)
"saving tag=%"PRIu32", current desc#%u, offset=0x%x"
+spapr_vscsi_load_request(uint32_t qtag, unsigned desc, unsigned offset)
"restoring tag=%"PRIu32", current desc#%u, offset=0x%x"
+spapr_vscsi__process_login(void) "Got login, sending response !"
+spapr_vscsi_queue_cmd_no_drive(uint64_t lun) "Command for lun %08" PRIx64 "
with no drive"
+spapr_vscsi_queue_cmd(uint32_t qtag, unsigned cdb, const char *cmd, int lun,
int ret) "Queued command tag 0x%"PRIx32" CMD 0x%x=%s LUN %d ret: %d"
+spapr_vscsi_do_crq(unsigned c0, unsigned c1) "crq: %02x %02x ..."
--
2.7.4
