/*
* Function name: tw_cli_init_connection
* Description: Sends init_connection cmd to firmware
*
* Input: ctlr -- ptr to per ctlr structure
* message_credits -- max # of requests that we might send
* down simultaneously. This will be
* typically set to 256 at init-time or
* after a reset, and to 1 at shutdown-time
* set_features -- indicates if we intend to use 64-bit
* sg, also indicates if we want to do a
* basic or an extended init_connection;
*
* Note: The following input/output parameters are valid, only in case of an
* extended init_connection:
*
* current_fw_srl -- srl of fw we are bundled
* with, if any; 0 otherwise
* current_fw_arch_id -- arch_id of fw we are bundled
* with, if any; 0 otherwise
* current_fw_branch -- branch # of fw we are bundled
* with, if any; 0 otherwise
* current_fw_build -- build # of fw we are bundled
* with, if any; 0 otherwise
* Output: fw_on_ctlr_srl -- srl of fw on ctlr
* fw_on_ctlr_arch_id -- arch_id of fw on ctlr
* fw_on_ctlr_branch -- branch # of fw on ctlr
* fw_on_ctlr_build -- build # of fw on ctlr
* init_connect_result -- result bitmap of fw response
* Return value: 0 -- success
* non-zero-- failure
*/
TW_INT32
tw_cli_init_connection(struct tw_cli_ctlr_context *ctlr,
TW_UINT16 message_credits, TW_UINT32 set_features,
TW_UINT16 current_fw_srl, TW_UINT16 current_fw_arch_id,
TW_UINT16 current_fw_branch, TW_UINT16 current_fw_build,
TW_UINT16 *fw_on_ctlr_srl, TW_UINT16 *fw_on_ctlr_arch_id,
TW_UINT16 *fw_on_ctlr_branch, TW_UINT16 *fw_on_ctlr_build,
TW_UINT32 *init_connect_result)
{
struct tw_cli_req_context *req;
struct tw_cl_command_init_connect *init_connect;
TW_INT32 error = TW_OSL_EBUSY;
tw_cli_dbg_printf(3, ctlr->ctlr_handle, tw_osl_cur_func(), "entered");
/* Get a request packet. */
if ((req = tw_cli_get_request(ctlr
)) == TW_CL_NULL)
goto out;
req->flags |= TW_CLI_REQ_FLAGS_INTERNAL;
/* Build the cmd pkt. */
init_connect = &(req->cmd_pkt->command.cmd_pkt_7k.init_connect);
req->cmd_pkt->cmd_hdr.header_desc.size_header = 128;
init_connect->res1__opcode =
BUILD_RES__OPCODE(0, TWA_FW_CMD_INIT_CONNECTION);
init_connect->request_id =
(TW_UINT8)(TW_CL_SWAP16(req->request_id));
init_connect->message_credits = TW_CL_SWAP16(message_credits);
init_connect->features = TW_CL_SWAP32(set_features);
if (ctlr->flags & TW_CL_64BIT_ADDRESSES)
init_connect->features |= TW_CL_SWAP32(TWA_64BIT_SG_ADDRESSES);
if (set_features & TWA_EXTENDED_INIT_CONNECT) {
/*
* Fill in the extra fields needed for an extended
* init_connect.
*/
init_connect->size = 6;
init_connect->fw_srl = TW_CL_SWAP16(current_fw_srl);
init_connect->fw_arch_id = TW_CL_SWAP16(current_fw_arch_id);
init_connect->fw_branch = TW_CL_SWAP16(current_fw_branch);
init_connect->fw_build = TW_CL_SWAP16(current_fw_build);
} else
init_connect->size = 3;
/* Submit the command, and wait for it to complete. */
error = tw_cli_submit_and_poll_request(req,
TW_CLI_REQUEST_TIMEOUT_PERIOD);
if (error == TW_OSL_ETIMEDOUT)
/* Clean-up done by tw_cli_submit_and_poll_request. */
return(error);
if (error)
goto out;
if ((error = init_connect->status)) {
tw_cli_create_ctlr_event(ctlr,
TW_CL_MESSAGE_SOURCE_CONTROLLER_ERROR,
&(req->cmd_pkt->cmd_hdr));
goto out;
}
if (set_features & TWA_EXTENDED_INIT_CONNECT) {
*fw_on_ctlr_srl = TW_CL_SWAP16(init_connect->fw_srl);
*fw_on_ctlr_arch_id = TW_CL_SWAP16(init_connect->fw_arch_id);
*fw_on_ctlr_branch = TW_CL_SWAP16(init_connect->fw_branch);
*fw_on_ctlr_build = TW_CL_SWAP16(init_connect->fw_build);
*init_connect_result = TW_CL_SWAP32(init_connect->result);
}
tw_cli_req_q_insert_tail(req, TW_CLI_FREE_Q);
return(error);
out:
tw_cl_create_event(ctlr->ctlr_handle, TW_CL_FALSE,
TW_CL_MESSAGE_SOURCE_COMMON_LAYER_ERROR,
0x1016, 0x1, TW_CL_SEVERITY_ERROR_STRING,
"init_connection failed",
"error = %d", error);
if (req)
tw_cli_req_q_insert_tail(req, TW_CLI_FREE_Q);
return(error);
}
/*
* Function name: tw_cl_start_io
* Description: Interface to OS Layer for accepting SCSI requests.
*
* Input: ctlr_handle -- controller handle
* req_pkt -- OSL built request packet
* req_handle -- request handle
* Output: None
* Return value: 0 -- success
* non-zero-- failure
*/
TW_INT32
tw_cl_start_io(struct tw_cl_ctlr_handle *ctlr_handle,
struct tw_cl_req_packet *req_pkt, struct tw_cl_req_handle *req_handle)
{
struct tw_cli_ctlr_context *ctlr;
struct tw_cli_req_context *req;
struct tw_cl_command_9k *cmd;
struct tw_cl_scsi_req_packet *scsi_req;
TW_INT32 error = TW_CL_ERR_REQ_SUCCESS;
tw_cli_dbg_printf(10, ctlr_handle, tw_osl_cur_func(), "entered");
ctlr = (struct tw_cli_ctlr_context *)(ctlr_handle->cl_ctlr_ctxt);
/*
* If working with a firmware version that does not support multiple
* luns, and this request is directed at a non-zero lun, error it
* back right away.
*/
if ((req_pkt->gen_req_pkt.scsi_req.lun) &&
(ctlr->working_srl < TWA_MULTI_LUN_FW_SRL)) {
req_pkt->status |= (TW_CL_ERR_REQ_INVALID_LUN |
TW_CL_ERR_REQ_SCSI_ERROR);
req_pkt->tw_osl_callback(req_handle);
return(TW_CL_ERR_REQ_SUCCESS);
}
if ((req = tw_cli_get_request(ctlr
)) == TW_CL_NULL) {
tw_cli_dbg_printf(2, ctlr_handle, tw_osl_cur_func(),
"Out of request context packets: returning busy");
return(TW_OSL_EBUSY);
}
req_handle->cl_req_ctxt = req;
req->req_handle = req_handle;
req->orig_req = req_pkt;
req->tw_cli_callback = tw_cli_complete_io;
req->flags |= TW_CLI_REQ_FLAGS_EXTERNAL;
req->flags |= TW_CLI_REQ_FLAGS_9K;
scsi_req = &(req_pkt->gen_req_pkt.scsi_req);
/* Build the cmd pkt. */
cmd = &(req->cmd_pkt->command.cmd_pkt_9k);
req->cmd_pkt->cmd_hdr.header_desc.size_header = 128;
cmd->res__opcode = BUILD_RES__OPCODE(0, TWA_FW_CMD_EXECUTE_SCSI);
cmd->unit = (TW_UINT8)(scsi_req->unit);
cmd->lun_l4__req_id = TW_CL_SWAP16(
BUILD_LUN_L4__REQ_ID(scsi_req->lun, req->request_id));
cmd->status = 0;
cmd->sgl_offset = 16; /* offset from end of hdr = max cdb len */
tw_osl_memcpy(cmd->cdb, scsi_req->cdb, scsi_req->cdb_len);
if (req_pkt->flags & TW_CL_REQ_CALLBACK_FOR_SGLIST) {
TW_UINT32 num_sgl_entries;
req_pkt->tw_osl_sgl_callback(req_handle, cmd->sg_list,
&num_sgl_entries);
cmd->lun_h4__sgl_entries =
TW_CL_SWAP16(BUILD_LUN_H4__SGL_ENTRIES(scsi_req->lun,
num_sgl_entries));
} else {
cmd->lun_h4__sgl_entries =
TW_CL_SWAP16(BUILD_LUN_H4__SGL_ENTRIES(scsi_req->lun,
scsi_req->sgl_entries));
tw_cli_fill_sg_list(ctlr, scsi_req->sg_list,
cmd->sg_list, scsi_req->sgl_entries);
}
if (((TW_CL_Q_FIRST_ITEM(&(ctlr->req_q_head[TW_CLI_PENDING_Q]))) != TW_CL_NULL) ||
(ctlr->reset_in_progress)) {
tw_cli_req_q_insert_tail(req, TW_CLI_PENDING_Q);
TW_CLI_WRITE_CONTROL_REGISTER(ctlr_handle,
TWA_CONTROL_UNMASK_COMMAND_INTERRUPT);
} else if ((error = tw_cli_submit_cmd(req))) {
tw_cli_dbg_printf(2, ctlr_handle, tw_osl_cur_func(),
"Could not start request. request = %p, error = %d",
req, error);
tw_cli_req_q_insert_tail(req, TW_CLI_FREE_Q);
}
return(error);
}
/*
* Function name: tw_cli_print_req_info
* Description: Prints CL internal details of a given request.
*
* Input: req -- ptr to CL internal request context
* Output: None
* Return value: None
*/
TW_VOID
tw_cl_print_req_info(struct tw_cl_req_handle *req_handle)
{
struct tw_cli_req_context *req = req_handle->cl_req_ctxt;
struct tw_cli_ctlr_context *ctlr = req->ctlr;
struct tw_cl_ctlr_handle *ctlr_handle = ctlr->ctlr_handle;
struct tw_cl_command_packet *cmd_pkt = req->cmd_pkt;
struct tw_cl_command_9k *cmd9k;
union tw_cl_command_7k *cmd7k;
TW_UINT8 *cdb;
TW_VOID *sgl;
TW_UINT32 sgl_entries;
TW_UINT32 i;
tw_cli_dbg_printf(0, ctlr_handle, tw_osl_cur_func(),
"CL details for request:");
tw_cli_dbg_printf(0, ctlr_handle, tw_osl_cur_func(),
"req_handle = %p, ctlr = %p,\n"
"cmd_pkt = %p, cmd_pkt_phys = 0x%llx,\n"
"data = %p, length = 0x%x, data_phys = 0x%llx,\n"
"state = 0x%x, flags = 0x%x, error = 0x%x,\n"
"orig_req = %p, callback = %p, req_id = 0x%x,\n"
"next_req = %p, prev_req = %p",
req_handle, ctlr,
cmd_pkt, req->cmd_pkt_phys,
req->data, req->length, req->data_phys,
req->state, req->flags, req->error_code,
req->orig_req, req->tw_cli_callback, req->request_id,
req->link.next, req->link.prev);
if (req->flags & TW_CLI_REQ_FLAGS_9K) {
cmd9k = &(cmd_pkt->command.cmd_pkt_9k);
sgl = cmd9k->sg_list;
sgl_entries = TW_CL_SWAP16(
GET_SGL_ENTRIES(cmd9k->lun_h4__sgl_entries));
tw_cli_dbg_printf(0, ctlr_handle, tw_osl_cur_func(),
"9K cmd: opcode = 0x%x, unit = 0x%x, req_id = 0x%x,\n"
"status = 0x%x, sgl_offset = 0x%x, sgl_entries = 0x%x",
GET_OPCODE(cmd9k->res__opcode),
cmd9k->unit,
TW_CL_SWAP16(GET_REQ_ID(cmd9k->lun_l4__req_id)),
cmd9k->status,
cmd9k->sgl_offset,
sgl_entries);
cdb = (TW_UINT8 *)(cmd9k->cdb);
tw_cli_dbg_printf(0, ctlr_handle, tw_osl_cur_func(),
"CDB: %x %x %x %x %x %x %x %x"
"%x %x %x %x %x %x %x %x",
cdb[0], cdb[1], cdb[2], cdb[3],
cdb[4], cdb[5], cdb[6], cdb[7],
cdb[8], cdb[9], cdb[10], cdb[11],
cdb[12], cdb[13], cdb[14], cdb[15]);
} else {
cmd7k = &(cmd_pkt->command.cmd_pkt_7k);
sgl = cmd7k->param.sgl;
sgl_entries = (cmd7k->generic.size -
GET_SGL_OFF(cmd7k->generic.sgl_off__opcode)) /
((ctlr->flags & TW_CL_64BIT_ADDRESSES) ? 3 : 2);
tw_cli_dbg_printf(0, ctlr_handle, tw_osl_cur_func(),
"7K cmd: opcode = 0x%x, sgl_offset = 0x%x,\n"
"size = 0x%x, req_id = 0x%x, unit = 0x%x,\n"
"status = 0x%x, flags = 0x%x, count = 0x%x",
GET_OPCODE(cmd7k->generic.sgl_off__opcode),
GET_SGL_OFF(cmd7k->generic.sgl_off__opcode),
cmd7k->generic.size,
TW_CL_SWAP16(cmd7k->generic.request_id),
GET_UNIT(cmd7k->generic.host_id__unit),
cmd7k->generic.status,
cmd7k->generic.flags,
TW_CL_SWAP16(cmd7k->generic.count));
}
tw_cli_dbg_printf(0, ctlr_handle, tw_osl_cur_func(), "SG entries:");
if (ctlr->flags & TW_CL_64BIT_ADDRESSES) {
struct tw_cl_sg_desc64 *sgl64 = (struct tw_cl_sg_desc64 *)sgl;
for (i = 0; i < sgl_entries; i++) {
tw_cli_dbg_printf(0, ctlr_handle, tw_osl_cur_func(),
"0x%llx 0x%x",
sgl64[i].address, sgl64[i].length);
}
} else {
struct tw_cl_sg_desc32 *sgl32 = (struct tw_cl_sg_desc32 *)sgl;
for (i = 0; i < sgl_entries; i++) {
tw_cli_dbg_printf(0, ctlr_handle, tw_osl_cur_func(),
"0x%x 0x%x",
sgl32[i].address, sgl32[i].length);
}
}
}