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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#include <sys/dditypes.h>
#include <sys/mdb_modapi.h>
#include <sys/modctl.h>
#include <sys/sunddi.h>
#include <sys/sysmacros.h>
#include <sys/lpif.h>
#include <srp.h>
#include <srpt_impl.h>
/*
* byteswap macros since ntohl not available in kernel mdb
*/
#if defined(_LITTLE_ENDIAN)
#define SRPT_BSWAP_32(x) (((uint32_t)(x) << 24) | \
(((uint32_t)(x) << 8) & 0xff0000) | \
(((uint32_t)(x) >> 8) & 0xff00) | \
((uint32_t)(x) >> 24))
#define SRPT_BSWAP_16(x) ((((x) & 0xff) << 8) | ((x) >> 8))
#else
#define SRPT_BSWAP_32(x) (x)
#define SRPT_BSWAP_16(x) (x)
#endif /* _LITTLE_ENDIAN */
/*
* Walker to list the addresses of all the active I/O Controllers
*/
static int
srpt_ioc_walk_init(mdb_walk_state_t *wsp)
{
srpt_ctxt_t *srpt;
uintptr_t srpt_global_addr, list_addr;
if (mdb_readvar(&srpt, "srpt_ctxt") == -1) {
mdb_warn("failed to read srpt soft state");
return (WALK_ERR);
}
srpt_global_addr = (uintptr_t)srpt;
list_addr = srpt_global_addr + offsetof(srpt_ctxt_t, sc_ioc_list);
wsp->walk_addr = list_addr;
if (mdb_layered_walk("list", wsp) == -1) {
mdb_warn("list walk failed");
return (WALK_ERR);
}
return (WALK_NEXT);
}
static int
srpt_list_walk_step(mdb_walk_state_t *wsp)
{
if (wsp->walk_addr == 0) {
return (WALK_DONE);
}
return (wsp->walk_callback(wsp->walk_addr, wsp->walk_layer,
wsp->walk_cbdata));
}
/*
* Walker to list the target services per I/O Controller. The I/O Controller is
* provided as input.
*/
static int
srpt_tgt_walk_init(mdb_walk_state_t *wsp)
{
srpt_ioc_t srpt_ioc;
/*
* Input should be a srpt_ioc_t, read it to get the
* srpt_target_port_t
*/
if (wsp->walk_addr == 0) {
mdb_warn("<srpt_ioc_t addr>::walk srpt_target\n");
return (WALK_ERR);
}
if (mdb_vread(&srpt_ioc, sizeof (srpt_ioc_t), wsp->walk_addr) == -1) {
mdb_warn("failed to read in the srpt_ioc\n ");
return (WALK_ERR);
}
wsp->walk_addr = (uintptr_t)srpt_ioc.ioc_tgt_port;
wsp->walk_data = mdb_alloc(sizeof (srpt_target_port_t), UM_SLEEP);
return (WALK_NEXT);
}
static int
srpt_tgt_walk_step(mdb_walk_state_t *wsp)
{
if (wsp->walk_addr == 0) {
return (WALK_DONE);
}
(void) wsp->walk_callback(wsp->walk_addr, wsp->walk_data,
wsp->walk_cbdata);
/* Currently there is only one target per IOC */
return (WALK_DONE);
}
static void
srpt_tgt_walk_fini(mdb_walk_state_t *wsp)
{
mdb_free(wsp->walk_data, sizeof (srpt_target_port_t));
}
/*
* Walker to list the channels per SRP target service. The target port is
* provided as input.
*/
static int
srpt_channel_walk_init(mdb_walk_state_t *wsp)
{
/*
* Input should be a srpt_target_port_t, read it to get the
* list of channels
*/
if (wsp->walk_addr == 0) {
mdb_warn("<srpt_target_port_t addr>::walk srpt_channel\n");
return (WALK_ERR);
}
wsp->walk_addr += offsetof(srpt_target_port_t, tp_ch_list);
if (mdb_layered_walk("list", wsp) == -1) {
mdb_warn("Could not walk tp_ch_list");
return (WALK_ERR);
}
return (WALK_NEXT);
}
/*
* Walker to list the SCSI sessions per target. The target is
* provided as input.
*/
static int
srpt_scsi_session_walk_init(mdb_walk_state_t *wsp)
{
/*
* Input should be a srpt_target_port_t, read it to get the
* srpt_session_t
*/
if (wsp->walk_addr == 0) {
mdb_warn("<srpt_target_port_t addr>::walk srpt_scsi_session\n");
return (WALK_ERR);
}
wsp->walk_addr += offsetof(srpt_target_port_t, tp_sess_list);
if (mdb_layered_walk("list", wsp) == -1) {
mdb_warn("target session list walk failed");
return (WALK_ERR);
}
return (WALK_NEXT);
}
/*
* Walker to list the tasks in a session. The session is
* provided as input.
*/
static int
srpt_task_walk_init(mdb_walk_state_t *wsp)
{
if (wsp->walk_addr == 0) {
mdb_warn("<srpt_session_t addr>::walk srpt_tasks\n");
return (WALK_ERR);
}
wsp->walk_addr += offsetof(srpt_session_t, ss_task_list);
if (mdb_layered_walk("list", wsp) == -1) {
mdb_warn("session task list walk failed");
return (WALK_ERR);
}
return (WALK_NEXT);
}
/* ARGSUSED */
static int
srpt_print_ioc(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
{
srpt_ioc_t ioc;
char mask[9];
int i;
if (addr == 0) {
mdb_warn("address of srpt_ioc should be specified\n");
return (DCMD_ERR);
}
if (mdb_vread(&ioc, sizeof (srpt_ioc_t), addr) == -1) {
mdb_warn("failed to read srpt_ioc at %p", addr);
return (DCMD_ERR);
}
mdb_printf("IOC %p\n", addr);
mdb_printf(" guid: %x\n", ioc.ioc_guid);
mdb_printf(" target port: %p\n", ioc.ioc_tgt_port);
mdb_printf(" srq handle: %p\n", ioc.ioc_srq_hdl);
mdb_printf(" current srq size: %u\n", ioc.ioc_num_iu_entries);
mdb_printf(" max srq size: %d\n", ioc.ioc_srq_attr.srq_wr_sz);
mdb_printf(" iu pool: %p\n", ioc.ioc_iu_pool);
mdb_printf(" profile send qdepth: %d\n",
SRPT_BSWAP_16(ioc.ioc_profile.ioc_send_msg_qdepth));
mdb_printf(" profile rmda read qdepth: %d\n",
ioc.ioc_profile.ioc_rdma_read_qdepth);
mdb_printf(" profile send msg size: %d\n",
SRPT_BSWAP_32(ioc.ioc_profile.ioc_send_msg_sz));
mdb_printf(" profile rmda xfer size: %d\n",
SRPT_BSWAP_32(ioc.ioc_profile.ioc_rdma_xfer_sz));
for (i = 0; i < 8; i++) {
if (ioc.ioc_profile.ioc_ctrl_opcap_mask & 1<<i) {
mask[i] = 'x';
} else {
mask[i] = '-';
}
}
mask[i] = '\0';
mdb_printf(" profile opcap mask: %s\n", mask);
return (DCMD_OK);
}
static const mdb_dcmd_t dcmds[] = {
{ "srpt_print_ioc", ":", "Print information about an SRPT IOC",
srpt_print_ioc, NULL},
{ NULL }
};
static const mdb_walker_t walkers[] = {
{ "srpt_ioc", "Walk active IO controllers",
srpt_ioc_walk_init, srpt_list_walk_step, NULL},
{ "srpt_tgt", "Walk the targets",
srpt_tgt_walk_init, srpt_tgt_walk_step, srpt_tgt_walk_fini},
{ "srpt_channel", "Walk the channels",
srpt_channel_walk_init, srpt_list_walk_step, NULL},
{ "srpt_scsi_session", "Walk the scsi sessions",
srpt_scsi_session_walk_init, srpt_list_walk_step, NULL},
{ "srpt_tasks", "Walk the tasks in a scsi session",
srpt_task_walk_init, srpt_list_walk_step, NULL},
{ NULL }
};
static const mdb_modinfo_t modinfo = {
MDB_API_VERSION, dcmds, walkers
};
const mdb_modinfo_t *
_mdb_init(void)
{
return (&modinfo);
}
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