/*-
* Copyright (c) 2018 Microsemi Corporation.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*/
/* $FreeBSD$ */
#include"smartpqi_includes.h"
/*
* Function to rescan the devices connected to adapter.
*/
int
pqisrc_rescan_devices(pqisrc_softstate_t *softs)
{
int ret;
DBG_FUNC("IN\n");
os_sema_lock(&softs->scan_lock);
ret = pqisrc_scan_devices(softs);
os_sema_unlock(&softs->scan_lock);
DBG_FUNC("OUT\n");
return ret;
}
void pqisrc_wait_for_rescan_complete(pqisrc_softstate_t *softs)
{
os_sema_lock(&softs->scan_lock);
os_sema_unlock(&softs->scan_lock);
}
/*
* Subroutine to acknowledge the events processed by the driver to the adapter.
*/
static void
pqisrc_acknowledge_event(pqisrc_softstate_t *softs,
struct pqi_event *event)
{
pqi_event_acknowledge_request_t request;
ib_queue_t *ib_q = &softs->op_raid_ib_q[0];
int tmo = PQISRC_EVENT_ACK_RESP_TIMEOUT;
memset(&request,0,sizeof(request));
DBG_FUNC("IN\n");
request.header.iu_type = PQI_REQUEST_IU_ACKNOWLEDGE_VENDOR_EVENT;
request.header.iu_length = (sizeof(pqi_event_acknowledge_request_t) -
PQI_REQUEST_HEADER_LENGTH);
request.event_type = event->event_type;
request.event_id = event->event_id;
request.additional_event_id = event->additional_event_id;
/* Submit Event Acknowledge */
pqisrc_submit_cmnd(softs, ib_q, &request);
/*
* We have to special-case this type of request because the firmware
* does not generate an interrupt when this type of request completes.
* Therefore, we have to poll until we see that the firmware has
* consumed the request before we move on.
*/
COND_WAIT(((ib_q->pi_local) == *(ib_q->ci_virt_addr)), tmo);
if (tmo <= 0) {
DBG_ERR("wait for event acknowledge timed out\n");
DBG_ERR("tmo : %d\n",tmo);
}
DBG_FUNC(" OUT\n");
}
/*
* Acknowledge processed events to the adapter.
*/
void
pqisrc_ack_all_events(void *arg1)
{
int i;
struct pqi_event *pending_event;
pqisrc_softstate_t *softs = (pqisrc_softstate_t*)arg1;
DBG_FUNC(" IN\n");
pending_event = &softs->pending_events[0];
for (i=0; i < PQI_NUM_SUPPORTED_EVENTS; i++) {
if (pending_event->pending == true) {
pending_event->pending = false;
pqisrc_acknowledge_event(softs, pending_event);
}
pending_event++;
}
/* Rescan devices except for heartbeat event */
if ((pqisrc_rescan_devices(softs)) != PQI_STATUS_SUCCESS) {
DBG_ERR(" Failed to Re-Scan devices\n ");
}
DBG_FUNC(" OUT\n");
}
/*
* Get event index from event type to validate the type of event.
*/
static int
pqisrc_event_type_to_event_index(unsigned event_type)
{
int index;
switch (event_type) {
case PQI_EVENT_TYPE_HOTPLUG:
index = PQI_EVENT_HOTPLUG;
break;
case PQI_EVENT_TYPE_HARDWARE:
index = PQI_EVENT_HARDWARE;
break;
case PQI_EVENT_TYPE_PHYSICAL_DEVICE:
index = PQI_EVENT_PHYSICAL_DEVICE;
break;
case PQI_EVENT_TYPE_LOGICAL_DEVICE:
index = PQI_EVENT_LOGICAL_DEVICE;
break;
case PQI_EVENT_TYPE_AIO_STATE_CHANGE:
index = PQI_EVENT_AIO_STATE_CHANGE;
break;
case PQI_EVENT_TYPE_AIO_CONFIG_CHANGE:
index = PQI_EVENT_AIO_CONFIG_CHANGE;
break;
default:
index = -1;
break;
}
return index;
}
/*
* Function used to process the events supported by the adapter.
*/
int
pqisrc_process_event_intr_src(pqisrc_softstate_t *softs,int obq_id)
{
uint32_t obq_pi,obq_ci;
pqi_event_response_t response;
ob_queue_t *event_q;
struct pqi_event *pending_event;
boolean_t need_delayed_work = false;
DBG_FUNC(" IN\n");
OS_ATOMIC64_INC(softs, num_intrs);
event_q = &softs->event_q;
obq_ci = event_q->ci_local;
obq_pi = *(event_q->pi_virt_addr);
DBG_INFO("Initial Event_q ci : %d Event_q pi : %d\n", obq_ci, obq_pi);
while(1) {
int event_index;
DBG_INFO("queue_id : %d ci : %d pi : %d\n",obq_id, obq_ci, obq_pi);
if (obq_pi == obq_ci)
break;
need_delayed_work = true;
/* Copy the response */
memcpy(&response, event_q->array_virt_addr + (obq_ci * event_q->elem_size),
sizeof(pqi_event_response_t));
DBG_INFO("response.header.iu_type : 0x%x \n", response.header.iu_type);
DBG_INFO("response.event_type : 0x%x \n", response.event_type);
event_index = pqisrc_event_type_to_event_index(response.event_type);
if (event_index >= 0) {
if(response.request_acknowledge) {
pending_event = &softs->pending_events[event_index];
pending_event->pending = true;
pending_event->event_type = response.event_type;
pending_event->event_id = response.event_id;
pending_event->additional_event_id = response.additional_event_id;
}
}
obq_ci = (obq_ci + 1) % event_q->num_elem;
}
/* Update CI */
event_q->ci_local = obq_ci;
PCI_MEM_PUT32(softs, event_q->ci_register_abs,
event_q->ci_register_offset, event_q->ci_local);
/*Adding events to the task queue for acknowledging*/
if (need_delayed_work == true) {
os_eventtaskqueue_enqueue(softs);
}
DBG_FUNC("OUT");
return PQI_STATUS_SUCCESS;
}
/*
* Function used to send a general management request to adapter.
*/
int pqisrc_submit_management_req(pqisrc_softstate_t *softs,
pqi_event_config_request_t *request)
{
int ret = PQI_STATUS_SUCCESS;
ib_queue_t *op_ib_q = &softs->op_raid_ib_q[0];
rcb_t *rcb = NULL;
DBG_FUNC(" IN\n");
/* Get the tag */
request->request_id = pqisrc_get_tag(&softs->taglist);
if (INVALID_ELEM == request->request_id) {
DBG_ERR("Tag not available\n");
ret = PQI_STATUS_FAILURE;
goto err_out;
}
rcb = &softs->rcb[request->request_id];
rcb->req_pending = true;
rcb->tag = request->request_id;
/* Submit command on operational raid ib queue */
ret = pqisrc_submit_cmnd(softs, op_ib_q, request);
if (ret != PQI_STATUS_SUCCESS) {
DBG_ERR(" Unable to submit command\n");
goto err_cmd;
}
ret = pqisrc_wait_on_condition(softs, rcb);
if (ret != PQI_STATUS_SUCCESS) {
DBG_ERR("Management request timed out !!\n");
goto err_cmd;
}
os_reset_rcb(rcb);
pqisrc_put_tag(&softs->taglist,request->request_id);
DBG_FUNC("OUT\n");
return ret;
err_cmd:
os_reset_rcb(rcb);
pqisrc_put_tag(&softs->taglist,request->request_id);
err_out:
DBG_FUNC(" failed OUT : %d\n", ret);
return ret;
}
/*
* Build and send the general management request.
*/
static int
pqi_event_configure(pqisrc_softstate_t *softs ,
pqi_event_config_request_t *request,
dma_mem_t *buff)
{
int ret = PQI_STATUS_SUCCESS;
DBG_FUNC(" IN\n");
request->header.comp_feature = 0x00;
request->header.iu_length = sizeof(pqi_event_config_request_t) -
PQI_REQUEST_HEADER_LENGTH; /* excluding IU header length */
/*Op OQ id where response to be delivered */
request->response_queue_id = softs->op_ob_q[0].q_id;
request->buffer_length = buff->size;
request->sg_desc.addr = buff->dma_addr;
request->sg_desc.length = buff->size;
request->sg_desc.zero = 0;
request->sg_desc.type = SGL_DESCRIPTOR_CODE_LAST_ALTERNATIVE_SGL_SEGMENT;
/* submit management req IU*/
ret = pqisrc_submit_management_req(softs,request);
if(ret)
goto err_out;
DBG_FUNC(" OUT\n");
return ret;
err_out:
DBG_FUNC("Failed OUT\n");
return ret;
}
/*
* Prepare REPORT EVENT CONFIGURATION IU to request that
* event configuration information be reported.
*/
int pqisrc_report_event_config(pqisrc_softstate_t *softs)
{
int ret,i ;
pqi_event_config_request_t request;
pqi_event_config_t *event_config_p ;
dma_mem_t buf_report_event ;
/*bytes to be allocaed for report event config data-in buffer */
uint32_t alloc_size = sizeof(pqi_event_config_t) ;
memset(&request, 0 , sizeof(request));
DBG_FUNC(" IN\n");
memset(&buf_report_event, 0, sizeof(struct dma_mem));
buf_report_event.tag = "pqi_report_event_buf" ;
buf_report_event.size = alloc_size;
buf_report_event.align = PQISRC_DEFAULT_DMA_ALIGN;
/* allocate memory */
ret = os_dma_mem_alloc(softs, &buf_report_event);
if (ret) {
DBG_ERR("Failed to Allocate report event config buffer : %d\n", ret);
goto err_out;
}
DBG_INFO("buf_report_event.dma_addr = %p \n",(void*)buf_report_event.dma_addr);
DBG_INFO("buf_report_event.virt_addr = %p \n",(void*)buf_report_event.virt_addr);
request.header.iu_type = PQI_REQUEST_IU_REPORT_VENDOR_EVENT_CONFIG;
/* Event configuration */
ret=pqi_event_configure(softs,&request,&buf_report_event);
if(ret)
goto free_mem;
event_config_p = (pqi_event_config_t*)buf_report_event.virt_addr;
softs->event_config.num_event_descriptors = MIN(event_config_p->num_event_descriptors,
PQI_MAX_EVENT_DESCRIPTORS) ;
for (i=0; i < softs->event_config.num_event_descriptors ;i++){
softs->event_config.descriptors[i].event_type =
event_config_p->descriptors[i].event_type;
}
/* free the allocated memory*/
os_dma_mem_free(softs, &buf_report_event);
DBG_FUNC(" OUT\n");
return ret;
free_mem:
os_dma_mem_free(softs, &buf_report_event);
err_out:
DBG_FUNC("Failed OUT\n");
return PQI_STATUS_FAILURE;
}
/*
* Prepare SET EVENT CONFIGURATION IU to request that
* event configuration parameters be set.
*/
int pqisrc_set_event_config(pqisrc_softstate_t *softs)
{
int ret,i;
pqi_event_config_request_t request;
pqi_event_config_t *event_config_p;
dma_mem_t buf_set_event;
/*bytes to be allocaed for set event config data-out buffer */
uint32_t alloc_size = sizeof(pqi_event_config_t);
memset(&request, 0 , sizeof(request));
DBG_FUNC(" IN\n");
memset(&buf_set_event, 0, sizeof(struct dma_mem));
buf_set_event.tag = "pqi_set_event_buf";
buf_set_event.size = alloc_size;
buf_set_event.align = PQISRC_DEFAULT_DMA_ALIGN;
/* allocate memory */
ret = os_dma_mem_alloc(softs, &buf_set_event);
if (ret) {
DBG_ERR("Failed to Allocate set event config buffer : %d\n", ret);
goto err_out;
}
DBG_INFO("buf_set_event.dma_addr = %p\n",(void*)buf_set_event.dma_addr);
DBG_INFO("buf_set_event.virt_addr = %p\n",(void*)buf_set_event.virt_addr);
request.header.iu_type = PQI_REQUEST_IU_SET_EVENT_CONFIG;
request.iu_specific.global_event_oq_id = softs->event_q.q_id;
/*pointer to data-out buffer*/
event_config_p = (pqi_event_config_t *)buf_set_event.virt_addr;
event_config_p->num_event_descriptors = softs->event_config.num_event_descriptors;
for (i=0; i < softs->event_config.num_event_descriptors ; i++){
event_config_p->descriptors[i].event_type =
softs->event_config.descriptors[i].event_type;
if( pqisrc_event_type_to_event_index(event_config_p->descriptors[i].event_type) != -1)
event_config_p->descriptors[i].oq_id = softs->event_q.q_id;
else
event_config_p->descriptors[i].oq_id = 0; /* Not supported this event. */
}
/* Event configuration */
ret = pqi_event_configure(softs,&request,&buf_set_event);
if(ret)
goto free_mem;
os_dma_mem_free(softs, &buf_set_event);
DBG_FUNC(" OUT\n");
return ret;
free_mem:
os_dma_mem_free(softs, &buf_set_event);
err_out:
DBG_FUNC("Failed OUT\n");
return PQI_STATUS_FAILURE;
}
