/*
* 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 (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
*/
/*
* The following notice accompanied the original version of this file:
*
* BSD LICENSE
*
* Copyright(c) 2007 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* This file defines interfaces between fcoe and fcoet driver.
*/
/*
* Driver kernel header files
*/
#include <sys/conf.h>
#include <sys/ddi.h>
#include <sys/stat.h>
#include <sys/pci.h>
#include <sys/sunddi.h>
#include <sys/modctl.h>
#include <sys/file.h>
#include <sys/cred.h>
#include <sys/byteorder.h>
#include <sys/atomic.h>
#include <sys/modhash.h>
#include <sys/scsi/scsi.h>
#include <sys/ethernet.h>
/*
* COMSTAR header files
*/
#include <sys/stmf_defines.h>
#include <sys/fct_defines.h>
#include <sys/stmf.h>
#include <sys/portif.h>
#include <sys/fct.h>
/*
* FCoE header files
*/
#include <sys/fcoe/fcoe_common.h>
/*
* Driver's own header files
*/
#include "fcoet.h"
#include "fcoet_eth.h"
/*
* function forward declaration
*/
static fcoet_exchange_t *fcoet_create_unsol_exchange(fcoe_frame_t *frame);
static int fcoet_process_sol_fcp_data(fcoe_frame_t *frm);
static int fcoet_process_unsol_fcp_cmd(fcoe_frame_t *frm);
static int fcoet_process_unsol_els_req(fcoe_frame_t *frm);
static int fcoet_process_sol_els_rsp(fcoe_frame_t *frm);
static int fcoet_process_unsol_abts_req(fcoe_frame_t *frame);
static int fcoet_process_sol_abts_acc(fcoe_frame_t *frame);
static int fcoet_process_sol_abts_rjt(fcoe_frame_t *frame);
static int fcoet_process_unsol_ct_req(fcoe_frame_t *frm);
static int fcoet_process_sol_ct_rsp(fcoe_frame_t *frame);
static int fcoet_process_sol_flogi_rsp(fcoe_frame_t *frame);
static int fcoet_send_sol_fcp_data_done(fcoe_frame_t *frm);
static int fcoet_send_fcp_status_done(fcoe_frame_t *frm);
static int fcoet_send_unsol_els_rsp_done(fcoe_frame_t *frm);
static int fcoet_send_sol_els_req_done(fcoe_frame_t *frm);
static int fcoet_send_unsol_bls_acc_done(fcoe_frame_t *frm);
static int fcoet_send_unsol_bls_rjt_done(fcoe_frame_t *frm);
static int fcoet_send_sol_bls_req_done(fcoe_frame_t *frm);
static int fcoet_send_sol_ct_req_done(fcoe_frame_t *frm);
static int fcoet_process_unsol_flogi_req(fcoet_exchange_t *xch);
/*
* rx_frame & release_sol_frame
* There should be no same OXID/RXID in on-going exchanges.
* RXID -> unsol_rxid_hash
* OXID -> sol_oxid_hash
*/
void
fcoet_rx_frame(fcoe_frame_t *frm)
{
uint8_t rctl = FRM_R_CTL(frm);
switch (rctl) {
case 0x01:
/*
* Solicited data
*/
if (fcoet_process_sol_fcp_data(frm)) {
FCOET_LOG("fcoet_rx_frame",
"fcoet_process_sol_fcp_data failed");
}
break;
case 0x06:
/*
* Unsolicited fcp_cmnd
*/
if (fcoet_process_unsol_fcp_cmd(frm)) {
FCOET_LOG("fcoet_rx_frame",
"fcoet_process_unsol_fcp_cmd failed");
}
break;
case 0x22:
/*
* unsolicited ELS req
*/
if (fcoet_process_unsol_els_req(frm)) {
FCOET_LOG("fcoet_rx_frame",
"fcoet_process_unsol_els_req failed");
}
break;
case 0x23:
/*
* solicited ELS rsp
*/
if (fcoet_process_sol_els_rsp(frm)) {
FCOET_LOG("fcoet_rx_frame",
"fcoet_process_sol_els_rsp failed");
}
break;
case 0x81:
/*
* unsolicted ABTS req
*/
if (fcoet_process_unsol_abts_req(frm)) {
FCOET_LOG("fcoet_rx_frame",
"fcoet_process_unsol_abts_req failed");
}
break;
case 0x84:
/*
* solicited ABTS acc response
*/
if (fcoet_process_sol_abts_acc(frm)) {
FCOET_LOG("fcoet_rx_frame",
"fcoet_process_sol_abts_acc failed");
}
break;
case 0x85:
/*
* solcited ABTS rjt response
*/
if (fcoet_process_sol_abts_rjt(frm)) {
FCOET_LOG("fcoet_rx_frame",
"fcoet_process_sol_abts_rjt failed");
}
break;
case 0x02:
/*
* unsolicited CT req
*/
if (fcoet_process_unsol_ct_req(frm)) {
FCOET_LOG("fcoet_rx_frame",
"fcoet_process_sol_ct_rsp failed");
}
break;
case 0x03:
/*
* sol ct rsp
*/
if (fcoet_process_sol_ct_rsp(frm)) {
FCOET_LOG("fcoet_rx_frame",
"fcoet_process_sol_ct_rsp failed");
}
break;
default:
/*
* Unsupported frame
*/
PRT_FRM_HDR("Unsupported unsol frame: ", frm);
break;
}
/*
* Release the frame in the end
*/
frm->frm_eport->eport_free_netb(frm->frm_netb);
frm->frm_eport->eport_release_frame(frm);
}
/*
* For solicited frames, after FCoE has sent it out, it will call this
* to notify client(FCoEI/FCoET) about its completion.
*/
void
fcoet_release_sol_frame(fcoe_frame_t *frm)
{
fcoet_exchange_t *xch = FRM2TFM(frm)->tfm_xch;
/*
* From now, we should not access both frm_hdr and frm_payload. Its
* mblk could have been released by MAC driver.
*/
switch (FRM2TFM(frm)->tfm_rctl) {
case 0x01:
if (xch && xch->xch_flags & XCH_FLAG_FCT_CALLED_ABORT) {
FCOET_RELE_XCHG(xch);
break;
}
if (fcoet_send_sol_fcp_data_done(frm)) {
ASSERT(0);
}
break;
case 0x05:
break;
case 0x07:
if (xch && xch->xch_flags & XCH_FLAG_FCT_CALLED_ABORT) {
FCOET_RELE_XCHG(xch);
break;
}
if (fcoet_send_fcp_status_done(frm)) {
ASSERT(0);
}
break;
case 0x23:
if (xch && xch->xch_flags & XCH_FLAG_FCT_CALLED_ABORT) {
FCOET_RELE_XCHG(xch);
break;
}
if (fcoet_send_unsol_els_rsp_done(frm)) {
ASSERT(0);
}
break;
case 0x22:
if (fcoet_send_sol_els_req_done(frm)) {
ASSERT(0);
}
break;
case 0x84:
if (fcoet_send_unsol_bls_acc_done(frm)) {
ASSERT(0);
}
break;
case 0x85:
if (fcoet_send_unsol_bls_rjt_done(frm)) {
ASSERT(0);
}
break;
case 0x81:
if (fcoet_send_sol_bls_req_done(frm)) {
ASSERT(0);
}
break;
case 0x02:
if (fcoet_send_sol_ct_req_done(frm)) {
ASSERT(0);
}
break;
case 0x03:
default:
/*
* Unsupported frame
*/
PRT_FRM_HDR("Unsupported sol frame: ", frm);
break;
}
/*
* We should release the frame
*/
FRM2SS(frm)->ss_eport->eport_release_frame(frm);
}
void
fcoet_port_event(fcoe_port_t *eport, uint32_t event)
{
fcoet_soft_state_t *ss = EPORT2SS(eport);
switch (event) {
case FCOE_NOTIFY_EPORT_LINK_UP:
if (eport->eport_mtu >= FCOE_MIN_MTU_SIZE) {
ss->ss_fcp_data_payload_size =
FCOE_DEFAULT_FCP_DATA_PAYLOAD_SIZE;
} else {
ss->ss_fcp_data_payload_size =
FCOE_MIN_FCP_DATA_PAYLOAD_SIZE;
}
FCOET_LOG("fcoet_port_event", "LINK UP notified");
mutex_enter(&ss->ss_watch_mutex);
ss->ss_sol_flogi_state = SFS_FLOGI_INIT;
cv_signal(&ss->ss_watch_cv);
mutex_exit(&ss->ss_watch_mutex);
break;
case FCOE_NOTIFY_EPORT_LINK_DOWN:
fct_handle_event(ss->ss_port,
FCT_EVENT_LINK_DOWN, 0, 0);
/* Need clear up all other things */
FCOET_LOG("fcoet_port_event", "LINK DOWN notified");
ss->ss_sol_flogi_state = SFS_WAIT_LINKUP;
break;
default:
break;
}
}
/*
* For unsolicited exchanges, FCoET is only responsible for allocation of
* req_payload. FCT will allocate resp_payload after the exchange is
* passed on.
*/
static fcoet_exchange_t *
fcoet_create_unsol_exchange(fcoe_frame_t *frm)
{
uint8_t r_ctl;
int cdb_size;
fcoet_exchange_t *xch, *xch_tmp;
fct_cmd_t *cmd;
fcoe_fcp_cmnd_t *ffc;
uint32_t task_expected_len = 0;
r_ctl = FRM_R_CTL(frm);
switch (r_ctl) {
case 0x22:
/*
* FCoET's unsolicited ELS
*/
cmd = (fct_cmd_t *)fct_alloc(FCT_STRUCT_CMD_RCVD_ELS,
GET_STRUCT_SIZE(fcoet_exchange_t) +
frm->frm_payload_size, 0);
if (cmd == NULL) {
FCOET_EXT_LOG(0, "can't get cmd");
return (NULL);
}
break;
case 0x06:
/*
* FCoET's unsolicited SCSI cmd
*/
cdb_size = 16; /* need improve later */
cmd = fct_scsi_task_alloc(FRM2SS(frm)->ss_port, FCT_HANDLE_NONE,
FRM_S_ID(frm), frm->frm_payload, cdb_size,
STMF_TASK_EXT_NONE);
if (cmd == NULL) {
FCOET_EXT_LOG(0, "can't get fcp cmd");
return (NULL);
}
ffc = (fcoe_fcp_cmnd_t *)frm->frm_payload;
task_expected_len = FCOE_B2V_4(ffc->ffc_fcp_dl);
break;
default:
FCOET_EXT_LOG(0, "unsupported R_CTL: %x", r_ctl);
return (NULL);
}
/*
* xch initialization
*/
xch = CMD2XCH(cmd);
xch->xch_oxid = FRM_OXID(frm);
xch->xch_flags = 0;
xch->xch_ss = FRM2SS(frm);
xch->xch_cmd = cmd;
xch->xch_current_seq = NULL;
xch->xch_left_data_size = 0;
if (task_expected_len) {
xch->xch_dbuf_num =
(task_expected_len + FCOET_MAX_DBUF_LEN - 1) /
FCOET_MAX_DBUF_LEN;
xch->xch_dbufs =
kmem_zalloc(xch->xch_dbuf_num * sizeof (stmf_data_buf_t *),
KM_SLEEP);
}
xch->xch_start_time = ddi_get_lbolt();
do {
xch->xch_rxid = atomic_add_16_nv(
&xch->xch_ss->ss_next_unsol_rxid, 1);
if (xch->xch_rxid == 0xFFFF) {
xch->xch_rxid = atomic_add_16_nv(
&xch->xch_ss->ss_next_unsol_rxid, 1);
}
} while (mod_hash_find(FRM2SS(frm)->ss_unsol_rxid_hash,
(mod_hash_key_t)(intptr_t)xch->xch_rxid,
(mod_hash_val_t)&xch_tmp) == 0);
xch->xch_sequence_no = 0;
xch->xch_ref = 0;
(void) mod_hash_insert(xch->xch_ss->ss_unsol_rxid_hash,
(mod_hash_key_t)(intptr_t)xch->xch_rxid, (mod_hash_val_t)xch);
xch->xch_flags |= XCH_FLAG_IN_HASH_TABLE;
/*
* cmd initialization
*/
cmd->cmd_port = FRM2SS(frm)->ss_port;
cmd->cmd_rp_handle = FCT_HANDLE_NONE;
cmd->cmd_rportid = FRM_S_ID(frm);
cmd->cmd_lportid = FRM_D_ID(frm);
cmd->cmd_oxid = xch->xch_oxid;
cmd->cmd_rxid = xch->xch_rxid;
fcoet_init_tfm(frm, xch);
return (xch);
}
int
fcoet_clear_unsol_exchange(fcoet_exchange_t *xch)
{
mod_hash_val_t val = NULL;
if (mod_hash_remove(xch->xch_ss->ss_unsol_rxid_hash,
(mod_hash_key_t)(intptr_t)xch->xch_rxid, &val) == 0) {
if (xch->xch_dbuf_num) {
kmem_free((void*)xch->xch_dbufs,
xch->xch_dbuf_num * sizeof (void *));
xch->xch_dbufs = NULL;
xch->xch_dbuf_num = 0;
}
ASSERT(xch->xch_flags & XCH_FLAG_IN_HASH_TABLE);
ASSERT((fcoet_exchange_t *)val == xch);
xch->xch_flags &= ~XCH_FLAG_IN_HASH_TABLE;
return (FCOE_SUCCESS);
}
FCOET_LOG("fcoet_clear_unsol_exchange", "xch %p already cleared from "
"hash table", xch);
return (FCOE_FAILURE);
}
void
fcoet_clear_sol_exchange(fcoet_exchange_t *xch)
{
mod_hash_val_t val = NULL;
if (xch->xch_flags & XCH_FLAG_IN_HASH_TABLE) {
(void) mod_hash_remove(xch->xch_ss->ss_sol_oxid_hash,
(mod_hash_key_t)(intptr_t)xch->xch_oxid, &val);
ASSERT((fcoet_exchange_t *)val == xch);
xch->xch_flags &= ~XCH_FLAG_IN_HASH_TABLE;
}
}
static int
fcoet_process_sol_fcp_data(fcoe_frame_t *frm)
{
fcoet_exchange_t *xch = NULL;
fcoet_soft_state_t *ss = NULL;
fct_status_t fc_st;
uint32_t iof;
uint16_t unsol_rxid;
int sge_idx;
stmf_data_buf_t *dbuf;
int data_offset;
unsol_rxid = FRM_RXID(frm);
if (mod_hash_find_cb(FRM2SS(frm)->ss_unsol_rxid_hash,
(mod_hash_key_t)(intptr_t)unsol_rxid,
(mod_hash_val_t)&xch, fcoet_modhash_find_cb) != 0) {
return (FCOE_FAILURE);
}
/*
* we will always have a buf waiting there
*/
data_offset = FRM_PARAM(frm);
dbuf = xch->xch_dbufs[data_offset/FCOET_MAX_DBUF_LEN];
ASSERT(dbuf);
ss = xch->xch_ss;
sge_idx = (data_offset % FCOET_MAX_DBUF_LEN)/
ss->ss_fcp_data_payload_size;
ASSERT(((sge_idx < FCOET_GET_SEG_NUM(dbuf) - 1) &&
(frm->frm_payload_size == ss->ss_fcp_data_payload_size)) ||
((sge_idx == FCOET_GET_SEG_NUM(dbuf) - 1) &&
(frm->frm_payload_size % ss->ss_fcp_data_payload_size ==
dbuf->db_data_size % ss->ss_fcp_data_payload_size)));
bcopy(frm->frm_payload, dbuf->db_sglist[sge_idx].seg_addr,
frm->frm_payload_size);
atomic_add_16(&dbuf->db_sglist_length, 1);
xch->xch_left_data_size -= frm->frm_payload_size;
if ((xch->xch_left_data_size <= 0) ||
dbuf->db_sglist_length >= FCOET_GET_SEG_NUM(dbuf)) {
fc_st = FCT_SUCCESS;
iof = 0;
dbuf->db_xfer_status = fc_st;
dbuf->db_flags |= DB_DONT_REUSE;
fct_scsi_data_xfer_done(xch->xch_cmd, dbuf, iof);
}
FCOET_RELE_XCHG(xch);
return (FCOE_SUCCESS);
}
static int
fcoet_process_unsol_fcp_cmd(fcoe_frame_t *frm)
{
fcoet_exchange_t *xch;
fcoe_fcp_cmnd_t *ffc;
uint8_t tm;
scsi_task_t *task;
xch = fcoet_create_unsol_exchange(frm);
if (xch == NULL) {
FCOET_LOG("fcoet_process_unsol_fcp_cmd", "can't get exchange");
return (FCOE_FAILURE);
}
ffc = (fcoe_fcp_cmnd_t *)frm->frm_payload;
task = XCH2TASK(xch);
task->task_csn_size = 8;
task->task_max_nbufs = 1;
task->task_cmd_seq_no = FCOE_B2V_1(ffc->ffc_ref_num);
task->task_flags = FCOE_B2V_1(ffc->ffc_attribute) & 0x07;
task->task_flags |=
(FCOE_B2V_1(ffc->ffc_addlen_rdwr) & 0x03) << 5;
task->task_expected_xfer_length = FCOE_B2V_4(ffc->ffc_fcp_dl);
tm = FCOE_B2V_1(ffc->ffc_management_flags);
if (tm) {
if (tm & BIT_1) {
task->task_mgmt_function = TM_ABORT_TASK_SET;
} else if (tm & BIT_2) {
task->task_mgmt_function = TM_CLEAR_TASK_SET;
} else if (tm & BIT_4) {
task->task_mgmt_function = TM_LUN_RESET;
} else if (tm & BIT_5) {
task->task_mgmt_function = TM_TARGET_COLD_RESET;
} else if (tm & BIT_6) {
task->task_mgmt_function = TM_CLEAR_ACA;
} else {
task->task_mgmt_function = TM_ABORT_TASK;
}
}
bcopy(ffc->ffc_cdb, task->task_cdb, 16);
fct_post_rcvd_cmd(xch->xch_cmd, NULL);
return (FCOE_SUCCESS);
}
/*
* It must be from link
* req_payload has been allocated when create_unsol_exchange
*/
static int
fcoet_process_unsol_els_req(fcoe_frame_t *frm)
{
int ret = FCOE_SUCCESS;
fcoet_exchange_t *xch;
xch = fcoet_create_unsol_exchange(frm);
ASSERT(xch);
ASSERT(FRM_IS_LAST_FRAME(frm));
/*
* For the reason of keeping symmetric, we do copy here as in
* process_sol_els instead of in create_unsol_exchange.
* req_payload depends on how to allocate buf in create_unsol_exchange
*/
XCH2ELS(xch)->els_req_alloc_size = 0;
XCH2ELS(xch)->els_req_size = frm->frm_payload_size;
XCH2ELS(xch)->els_req_payload =
GET_BYTE_OFFSET(xch, GET_STRUCT_SIZE(fcoet_exchange_t));
bcopy(frm->frm_payload, XCH2ELS(xch)->els_req_payload,
XCH2ELS(xch)->els_req_size);
if (XCH2ELS(xch)->els_req_payload[0] != ELS_OP_FLOGI) {
/*
* Ensure LINK_UP event has been handled, or PLOIG has
* been processed by FCT, or else it will be discarded.
* It need more consideration later ???
*/
if ((XCH2ELS(xch)->els_req_payload[0] == ELS_OP_PLOGI) &&
(xch->xch_ss->ss_flags & SS_FLAG_DELAY_PLOGI)) {
delay(STMF_SEC2TICK(1)/2);
}
if ((XCH2ELS(xch)->els_req_payload[0] == ELS_OP_PRLI) &&
(xch->xch_ss->ss_flags & SS_FLAG_DELAY_PLOGI)) {
atomic_and_32(&xch->xch_ss->ss_flags,
~SS_FLAG_DELAY_PLOGI);
delay(STMF_SEC2TICK(1)/3);
}
fct_post_rcvd_cmd(xch->xch_cmd, NULL);
} else {
/*
* We always handle FLOGI internally
* Save dst mac address from FLOGI request to restore later
*/
bcopy((char *)frm->frm_hdr-22,
frm->frm_eport->eport_efh_dst, ETHERADDRL);
ret = fcoet_process_unsol_flogi_req(xch);
}
return (ret);
}
/*
* It must be from link, but could be incomplete because of network problems
*/
static int
fcoet_process_sol_els_rsp(fcoe_frame_t *frm)
{
uint32_t actual_size;
fct_status_t fc_st;
uint32_t iof;
uint16_t sol_oxid;
fcoet_exchange_t *xch = NULL;
fct_els_t *els = NULL;
int ret = FCOE_SUCCESS;
sol_oxid = FRM_OXID(frm);
if (mod_hash_find_cb(FRM2SS(frm)->ss_sol_oxid_hash,
(mod_hash_key_t)(intptr_t)sol_oxid,
(mod_hash_val_t *)&xch, fcoet_modhash_find_cb) != 0) {
return (FCOE_FAILURE);
}
if (xch != FRM2SS(frm)->ss_sol_flogi) {
fcoet_clear_sol_exchange(xch);
}
fcoet_init_tfm(frm, xch);
els = CMD2ELS(xch->xch_cmd);
ASSERT(FRM_IS_LAST_FRAME(frm));
actual_size = els->els_resp_size;
if (actual_size > frm->frm_payload_size) {
actual_size = frm->frm_payload_size;
}
els->els_resp_size = (uint16_t)actual_size;
bcopy(frm->frm_payload, els->els_resp_payload, actual_size);
if (xch->xch_ss->ss_sol_flogi == xch) {
/*
* We handle FLOGI internally
*/
ret = fcoet_process_sol_flogi_rsp(frm);
FCOET_RELE_XCHG(xch);
} else {
fc_st = FCT_SUCCESS;
iof = FCT_IOF_FCA_DONE;
FCOET_RELE_XCHG(xch);
fct_send_cmd_done(xch->xch_cmd, fc_st, iof);
}
return (ret);
}
/*
* It's still in the context of being aborted exchange, but FCT can't support
* this scheme, so there are two fct_cmd_t that are bound with one exchange.
*/
static int
fcoet_process_unsol_abts_req(fcoe_frame_t *frm)
{
fct_cmd_t *cmd;
fcoet_exchange_t *xch = NULL;
uint16_t unsol_rxid;
FCOET_LOG("fcoet_process_unsol_abts_req", "ABTS: %x/%x",
FRM_OXID(frm), FRM_RXID(frm));
unsol_rxid = FRM_RXID(frm);
if (mod_hash_find_cb(FRM2SS(frm)->ss_unsol_rxid_hash,
(mod_hash_key_t)(intptr_t)unsol_rxid,
(mod_hash_val_t *)&xch, fcoet_modhash_find_cb) != 0) {
FCOET_LOG("fcoet_process_unsol_abts_req",
"can't find aborted exchange");
return (FCOE_SUCCESS);
}
fcoet_init_tfm(frm, xch);
if (!FRM_IS_LAST_FRAME(frm)) {
FCOET_LOG("fcoet_process_unsol_abts_req",
"not supported this kind frame");
FCOET_RELE_XCHG(xch);
return (FCOE_FAILURE);
}
cmd = (fct_cmd_t *)fct_alloc(FCT_STRUCT_CMD_RCVD_ABTS, 0, 0);
if (cmd == NULL) {
FCOET_LOG("fcoet_process_unsol_abts_req",
"can't alloc fct_cmd_t");
FCOET_RELE_XCHG(xch);
return (FCOE_FAILURE);
}
xch->xch_flags |= XCH_FLAG_INI_ASKED_ABORT;
cmd->cmd_fca_private = xch;
cmd->cmd_port = xch->xch_cmd->cmd_port;
cmd->cmd_rp_handle = xch->xch_cmd->cmd_rp_handle;
cmd->cmd_rportid = xch->xch_cmd->cmd_rportid;
cmd->cmd_lportid = xch->xch_cmd->cmd_lportid;
cmd->cmd_oxid = xch->xch_cmd->cmd_oxid;
cmd->cmd_rxid = xch->xch_cmd->cmd_rxid;
fct_post_rcvd_cmd(cmd, NULL);
FCOET_LOG("fcoet_process_unsol_abts_req",
"abts now: xch/%p, frm/%p - time/%p",
xch, frm, ddi_get_lbolt());
FCOET_RELE_XCHG(xch);
return (FCOE_SUCCESS);
}
static int
fcoet_process_sol_abts_acc(fcoe_frame_t *frm)
{
fcoet_exchange_t *xch = NULL;
uint16_t sol_oxid;
sol_oxid = FRM_OXID(frm);
if (mod_hash_remove(FRM2SS(frm)->ss_sol_oxid_hash,
(mod_hash_key_t)(intptr_t)sol_oxid,
(mod_hash_val_t *)&xch) != 0) {
/*
* So far ABTS for FLOGI might be removed from ss_sol_oxid_hash
* in fcoet_watch_handle_sol_flogi, Will improve it later
*/
return (FCOE_SUCCESS);
}
xch->xch_flags &= ~XCH_FLAG_IN_HASH_TABLE;
if (!FRM_IS_LAST_FRAME(frm)) {
FCOET_LOG("fcoet_process_sol_abts_acc",
"not supported this kind frame");
FCOET_RELE_XCHG(xch);
return (FCOE_FAILURE);
}
FCOET_LOG("fcoet_process_sol_abts_acc",
"ABTS received but there is nothing to do");
return (FCOE_SUCCESS);
}
static int
fcoet_process_sol_abts_rjt(fcoe_frame_t *frm)
{
fcoet_exchange_t *xch = NULL;
uint16_t sol_oxid;
sol_oxid = FRM_OXID(frm);
if (mod_hash_remove(FRM2SS(frm)->ss_sol_oxid_hash,
(mod_hash_key_t)(intptr_t)sol_oxid,
(mod_hash_val_t *)&xch) != 0) {
/*
* So far ABTS for FLOGI might be removed from ss_sol_oxid_hash
* in fcoet_watch_handle_sol_flogi, Will improve it later
*/
return (FCOE_SUCCESS);
}
xch->xch_flags &= ~XCH_FLAG_IN_HASH_TABLE;
if (!FRM_IS_LAST_FRAME(frm)) {
FCOET_LOG("fcoet_process_sol_abts_rjt",
"not supported this kind frame");
return (FCOE_FAILURE);
}
FCOET_LOG("fcoet_process_sol_abts_rjt",
"ABTS_RJT received rjt reason %x but there is nothing to do",
frm->frm_payload[1]);
return (FCOE_SUCCESS);
}
static int
fcoet_process_unsol_ct_req(fcoe_frame_t *frm)
{
/*
* If you want to implement virtual name server, or FC/ETH
* gateway, you can do it here
*/
if (!FRM_IS_LAST_FRAME(frm)) {
FCOET_LOG("fcoet_process_unsol_ct_req",
"not supported this kind frame");
return (FCOE_FAILURE);
}
FCOET_LOG("fcoet_process_unsol_ct_req",
"No support for unsolicited CT request");
return (FCOE_SUCCESS);
}
static int
fcoet_process_sol_ct_rsp(fcoe_frame_t *frm)
{
uint32_t actual_size;
fct_status_t fc_st;
uint32_t iof;
fct_sol_ct_t *ct = NULL;
fcoet_exchange_t *xch = NULL;
uint16_t sol_oxid;
sol_oxid = FRM_OXID(frm);
if (mod_hash_remove(FRM2SS(frm)->ss_sol_oxid_hash,
(mod_hash_key_t)(intptr_t)sol_oxid,
(mod_hash_val_t *)&xch) != 0) {
return (FCOE_SUCCESS);
}
xch->xch_flags &= ~XCH_FLAG_IN_HASH_TABLE;
fcoet_init_tfm(frm, xch);
ASSERT(FRM_IS_LAST_FRAME(frm));
actual_size = CMD2ELS(xch->xch_cmd)->els_resp_size;
if (actual_size > frm->frm_payload_size) {
actual_size = frm->frm_payload_size;
}
ct = CMD2CT(xch->xch_cmd);
ct->ct_resp_size = (uint16_t)actual_size;
bcopy(frm->frm_payload,
CMD2CT(xch->xch_cmd)->ct_resp_payload, actual_size);
fc_st = FCT_SUCCESS;
iof = FCT_IOF_FCA_DONE;
fct_send_cmd_done(xch->xch_cmd, fc_st, iof);
return (FCOE_SUCCESS);
}
static int
fcoet_send_sol_fcp_data_done(fcoe_frame_t *frm)
{
fcoet_exchange_t *xch = FRM2TFM(frm)->tfm_xch;
stmf_data_buf_t *dbuf;
int dbuf_index;
uint32_t iof;
dbuf_index = FRM2TFM(frm)->tfm_buf_idx;
xch->xch_left_data_size -= frm->frm_payload_size;
dbuf = xch->xch_dbufs[dbuf_index];
ASSERT((dbuf) && (dbuf->db_flags & DB_DIRECTION_TO_RPORT));
/*
* We decrease db_sglist_length only for READ-type commands.
* For INQUIRY, resid could be non-zero, then db_sglist_length will
* be useful.
*/
dbuf->db_sglist_length--;
if ((xch->xch_left_data_size <= 0) || (!dbuf->db_sglist_length)) {
iof = 0;
dbuf->db_xfer_status = FCT_SUCCESS;
dbuf->db_flags |= DB_DONT_REUSE;
if (dbuf->db_flags & DB_SEND_STATUS_GOOD) {
if (fcoet_send_status(xch->xch_cmd) != FCT_SUCCESS) {
return (FCOE_FAILURE);
}
} else {
fct_scsi_data_xfer_done(xch->xch_cmd, dbuf, iof);
}
}
FCOET_RELE_XCHG(xch);
return (FCOE_SUCCESS);
}
static int
fcoet_send_fcp_status_done(fcoe_frame_t *frm)
{
fcoet_exchange_t *xch = FRM2TFM(frm)->tfm_xch;
fct_status_t fc_st = FCT_SUCCESS;
uint32_t iof = FCT_IOF_FCA_DONE;
if (xch->xch_flags & XCH_FLAG_FCT_CALLED_ABORT) {
FCOET_RELE_XCHG(xch);
return (FCOE_SUCCESS);
}
if (fcoet_clear_unsol_exchange(xch) == FCOE_SUCCESS) {
FCOET_RELE_XCHG(xch);
fct_send_response_done(xch->xch_cmd, fc_st, iof);
} else {
/* Already cleared from hash table by abort */
FCOET_RELE_XCHG(xch);
}
return (FCOE_SUCCESS);
}
/*
* Solicited frames callback area
*/
static int
fcoet_send_unsol_els_rsp_done(fcoe_frame_t *frm)
{
fcoet_exchange_t *xch = FRM2TFM(frm)->tfm_xch;
fct_status_t fc_st;
uint32_t iof;
FCOET_EXT_LOG("fcoet_send_unsol_els_rsp_done",
"frm/oxid/els: %p/%x/%x",
frm, FRM_OXID(frm), XCH2ELS(xch)->els_req_payload[0]);
if (xch->xch_flags & XCH_FLAG_FCT_CALLED_ABORT) {
FCOET_RELE_XCHG(xch);
return (FCOE_SUCCESS);
}
if (fcoet_clear_unsol_exchange(xch) == FCOE_FAILURE) {
FCOET_RELE_XCHG(xch);
return (FCOE_SUCCESS);
}
FCOET_RELE_XCHG(xch);
if (XCH2ELS(xch)->els_req_payload[0] != ELS_OP_FLOGI) {
fc_st = FCT_SUCCESS;
iof = FCT_IOF_FCA_DONE;
fct_send_response_done(xch->xch_cmd, fc_st, iof);
} else {
/*
* We need update ss_link_info and flags.
*/
mutex_enter(&xch->xch_ss->ss_watch_mutex);
xch->xch_ss->ss_link_info.portid =
xch->xch_cmd->cmd_lportid;
xch->xch_ss->ss_link_info.port_topology =
PORT_TOPOLOGY_PT_TO_PT;
if (frm->frm_eport->eport_link_speed == FCOE_PORT_SPEED_1G) {
xch->xch_ss->ss_link_info.port_speed = PORT_SPEED_1G;
} else if (frm->frm_eport->eport_link_speed ==
FCOE_PORT_SPEED_10G) {
xch->xch_ss->ss_link_info.port_speed = PORT_SPEED_10G;
}
xch->xch_ss->ss_link_info.port_no_fct_flogi = 1;
xch->xch_ss->ss_link_info.port_fca_flogi_done = 1;
xch->xch_ss->ss_link_info.port_fct_flogi_done = 0;
bcopy(XCH2ELS(xch)->els_req_payload + 20,
xch->xch_ss->ss_link_info.port_rpwwn, 8);
bcopy(XCH2ELS(xch)->els_req_payload + 28,
xch->xch_ss->ss_link_info.port_rnwwn, 8);
atomic_or_32(&xch->xch_ss->ss_flags,
SS_FLAG_UNSOL_FLOGI_DONE);
atomic_or_32(&xch->xch_ss->ss_flags,
SS_FLAG_REPORT_TO_FCT);
xch->xch_ss->ss_sol_flogi_state = SFS_FLOGI_ACC;
mutex_exit(&xch->xch_ss->ss_watch_mutex);
fct_free(xch->xch_cmd);
}
return (FCOE_SUCCESS);
}
/* ARGSUSED */
static int
fcoet_send_sol_els_req_done(fcoe_frame_t *frm)
{
return (FCOE_SUCCESS);
}
/*
* FCT have released relevant fct_cmd_t and fcoet_exchange_t now, so it's not
* needed to notify FCT anything. Just do nothing.
*/
/* ARGSUSED */
static int
fcoet_send_unsol_bls_acc_done(fcoe_frame_t *frm)
{
FCOET_LOG("fcoet_send_unsol_bls_acc_done",
"Unsolicited BA_ACC sent out and released ");
return (FCOE_SUCCESS);
}
/* ARGSUSED */
static int
fcoet_send_unsol_bls_rjt_done(fcoe_frame_t *frm)
{
FCOET_LOG("fcoet_send_unsol_bls_rjt_done",
"Unsolicited BA_RJT sent out and released");
return (FCOE_SUCCESS);
}
/* ARGSUSED */
static int
fcoet_send_sol_bls_req_done(fcoe_frame_t *frm)
{
FCOET_LOG("fcoet_send_sol_bls_req_done",
"Soclited ABTS was sent out and released");
return (FCOE_SUCCESS);
}
/* ARGSUSED */
static int
fcoet_send_sol_ct_req_done(fcoe_frame_t *frm)
{
FCOET_LOG("fcoet_send_sol_ct_req_done",
"CT request was sent out and released");
return (FCOE_SUCCESS);
}
/*
* FCoET can only interpret solicited and unsolicited FLOGI, all the other
* ELS/CT/FCP should be passed up to FCT.
*/
static int
fcoet_process_unsol_flogi_req(fcoet_exchange_t *xch)
{
fcoe_frame_t *frm;
atomic_or_32(&xch->xch_ss->ss_flags, SS_FLAG_DELAY_PLOGI);
/*
* In spec, common service parameter should indicate if it's from
* N-port or F-port, but the initial intel implementation is not
* spec-compliant, so we use eport_flags to workaround the problem
*/
if (!(xch->xch_ss->ss_eport->eport_flags & EPORT_FLAG_IS_DIRECT_P2P)) {
/*
* The topology is switch P2P, so there's no need to respond
* to this FLOGI
*/
FCOET_LOG("fcoet_process_unsol_flogi_req",
"skip FLOGI, since we are in switch topology");
return (FCOE_SUCCESS);
}
/*
* Send ACC according to the spec.
*/
frm = xch->xch_ss->ss_eport->eport_alloc_frame(xch->xch_ss->ss_eport,
FLOGI_ACC_PAYLOAD_SIZE + FCFH_SIZE, 0);
if (frm == NULL) {
ASSERT(0);
return (FCOE_FAILURE);
} else {
fcoet_init_tfm(frm, xch);
bzero(frm->frm_payload, frm->frm_payload_size);
}
FFM_R_CTL(0x23, frm);
FRM2TFM(frm)->tfm_rctl = 0x23;
FFM_TYPE(0x01, frm);
FFM_F_CTL(0x980000, frm);
FFM_OXID(xch->xch_oxid, frm);
FFM_RXID(xch->xch_rxid, frm);
FFM_S_ID(0xFFFFFE, frm);
/*
* ACC
*/
frm->frm_payload[0] = 0x02;
/*
* Common Svc Parameters
*/
frm->frm_payload[4] = 0x20;
frm->frm_payload[5] = 0x20;
frm->frm_payload[7] = 0x0A;
frm->frm_payload[10] = 0x05;
frm->frm_payload[11] = 0xAC;
bcopy(xch->xch_ss->ss_eport->eport_portwwn, frm->frm_payload + 20, 8);
bcopy(xch->xch_ss->ss_eport->eport_nodewwn, frm->frm_payload + 28, 8);
/*
* Class3 Svc Parameters
*/
frm->frm_payload[68] = 0x88;
/*
* Send FLOGI ACC out
* After this, we should never use the exchange, because it could
* have been released. Please pay attention to other similiar cases.
*/
xch->xch_ss->ss_eport->eport_tx_frame(frm);
return (FCOE_SUCCESS);
}
static int
fcoet_process_sol_flogi_rsp(fcoe_frame_t *frm)
{
int ret = FCOE_SUCCESS;
fcoet_exchange_t *xch = FRM2TFM(frm)->tfm_xch;
fct_els_t *els = CMD2ELS(xch->xch_cmd);
fcoet_soft_state_t *ss = FRM2SS(frm);
if (els->els_resp_payload[0] == ELS_OP_ACC) {
/*
* We need always update ss_link_info and flags for solicited
* FLOGI, because someone has assigned address for you. The
* initial intel implementation will always assign address for
* you even you are in back-to-back mode (direct P2P).
*/
mutex_enter(&ss->ss_watch_mutex);
if (ss->ss_flags & SS_FLAG_PORT_DISABLED ||
(ss->ss_sol_flogi_state != SFS_FLOGI_INIT &&
ss->ss_sol_flogi_state != SFS_FLOGI_CHECK_TIMEOUT &&
ss->ss_sol_flogi_state != SFS_ABTS_INIT)) {
/*
* The status is not correct, this response may be
* obsolete.
*/
mutex_exit(&ss->ss_watch_mutex);
FCOET_LOG("fcoet_process_sol_flogi_rsp",
"FLOGI response is obsolete");
return (FCOE_FAILURE);
}
if (xch->xch_flags & XCH_FLAG_NONFCP_REQ_SENT) {
xch->xch_cmd->cmd_lportid = FRM_D_ID(frm);
xch->xch_ss->ss_link_info.portid =
xch->xch_cmd->cmd_lportid;
/*
* Check the bit 28 in 3rd word of the payload
* in common service parameters to know the
* remote port is F_PORT or N_PORT
*/
if (els->els_resp_payload[8] & 0x10) {
uint8_t src_addr[ETHERADDRL];
frm->frm_eport->eport_flags &=
~EPORT_FLAG_IS_DIRECT_P2P;
FCOE_SET_DEFAULT_OUI(src_addr);
bcopy(frm->frm_hdr->hdr_d_id, src_addr + 3, 3);
bcopy((char *)frm->frm_hdr-22,
frm->frm_eport->eport_efh_dst,
ETHERADDRL);
frm->frm_eport->eport_set_mac_address(
frm->frm_eport, src_addr, B_TRUE);
xch->xch_ss->ss_link_info.port_topology =
PORT_TOPOLOGY_FABRIC_PT_TO_PT;
} else {
xch->xch_ss->ss_link_info.port_topology =
PORT_TOPOLOGY_PT_TO_PT;
}
xch->xch_ss->ss_link_info.port_speed = PORT_SPEED_10G;
xch->xch_ss->ss_link_info.port_no_fct_flogi = 1;
xch->xch_ss->ss_link_info.port_fca_flogi_done = 1;
xch->xch_ss->ss_link_info.port_fct_flogi_done = 0;
xch->xch_ss->ss_sol_flogi_state = SFS_FLOGI_ACC;
cv_signal(&xch->xch_ss->ss_watch_cv);
FCOET_LOG("fcoet_process_sol_flogi_rsp",
"FLOGI is accecpted");
} else {
FCOET_LOG("fcoet_process_sol_flogi_rsp",
"FLOGI xch_flags/%x", xch->xch_flags);
ret = FCOE_FAILURE;
}
mutex_exit(&ss->ss_watch_mutex);
} else {
FCOET_LOG("fcoet_process_sol_flogi_rsp", "FLOGI is rejected");
ret = FCOE_FAILURE;
}
return (ret);
}