/**
* allocates memory for a queue and registers pages in phyp
*/
int ehea_qp_alloc_register(struct ehea_qp *qp, struct hw_queue *hw_queue,
int nr_pages, int wqe_size, int act_nr_sges,
struct ehea_adapter *adapter, int h_call_q_selector)
{
u64 hret, rpage;
int ret, cnt;
void *vpage;
ret = hw_queue_ctor(hw_queue, nr_pages, EHEA_PAGESIZE, wqe_size);
if (ret)
return ret;
for (cnt = 0; cnt < nr_pages; cnt++) {
vpage = hw_qpageit_get_inc(hw_queue);
if (!vpage) {
ehea_error("hw_qpageit_get_inc failed");
goto out_kill_hwq;
}
rpage = virt_to_abs(vpage);
hret = ehea_h_register_rpage(adapter->handle,
0, h_call_q_selector,
qp->fw_handle, rpage, 1);
if (hret < H_SUCCESS) {
ehea_error("register_rpage_qp failed");
goto out_kill_hwq;
}
}
hw_qeit_reset(hw_queue);
return 0;
out_kill_hwq:
hw_queue_dtor(hw_queue);
return -EIO;
}
u64 ehea_h_register_rpage_mr(const u64 adapter_handle, const u64 mr_handle,
const u8 pagesize, const u8 queue_type,
const u64 log_pageaddr, const u64 count)
{
if ((count > 1) && (log_pageaddr & ~PAGE_MASK)) {
pr_err("not on pageboundary\n");
return H_PARAMETER;
}
return ehea_h_register_rpage(adapter_handle, pagesize,
queue_type, mr_handle,
log_pageaddr, count);
}
struct ehea_eq *ehea_create_eq(struct ehea_adapter *adapter,
const enum ehea_eq_type type,
const u32 max_nr_of_eqes, const u8 eqe_gen)
{
int ret, i;
u64 hret, rpage;
void *vpage;
struct ehea_eq *eq;
eq = kzalloc(sizeof(*eq), GFP_KERNEL);
if (!eq) {
ehea_error("no mem for eq");
return NULL;
}
eq->adapter = adapter;
eq->attr.type = type;
eq->attr.max_nr_of_eqes = max_nr_of_eqes;
eq->attr.eqe_gen = eqe_gen;
spin_lock_init(&eq->spinlock);
hret = ehea_h_alloc_resource_eq(adapter->handle,
&eq->attr, &eq->fw_handle);
if (hret != H_SUCCESS) {
ehea_error("alloc_resource_eq failed");
goto out_freemem;
}
ret = hw_queue_ctor(&eq->hw_queue, eq->attr.nr_pages,
EHEA_PAGESIZE, sizeof(struct ehea_eqe));
if (ret) {
ehea_error("can't allocate eq pages");
goto out_freeres;
}
for (i = 0; i < eq->attr.nr_pages; i++) {
vpage = hw_qpageit_get_inc(&eq->hw_queue);
if (!vpage) {
ehea_error("hw_qpageit_get_inc failed");
hret = H_RESOURCE;
goto out_kill_hwq;
}
rpage = virt_to_abs(vpage);
hret = ehea_h_register_rpage(adapter->handle, 0,
EHEA_EQ_REGISTER_ORIG,
eq->fw_handle, rpage, 1);
if (i == (eq->attr.nr_pages - 1)) {
/* last page */
vpage = hw_qpageit_get_inc(&eq->hw_queue);
if ((hret != H_SUCCESS) || (vpage)) {
goto out_kill_hwq;
}
} else {
if ((hret != H_PAGE_REGISTERED) || (!vpage)) {
goto out_kill_hwq;
}
}
}
hw_qeit_reset(&eq->hw_queue);
return eq;
out_kill_hwq:
hw_queue_dtor(&eq->hw_queue);
out_freeres:
ehea_h_free_resource(adapter->handle, eq->fw_handle, FORCE_FREE);
out_freemem:
kfree(eq);
return NULL;
}
struct ehea_cq *ehea_create_cq(struct ehea_adapter *adapter,
int nr_of_cqe, u64 eq_handle, u32 cq_token)
{
struct ehea_cq *cq;
struct h_epa epa;
u64 *cq_handle_ref, hret, rpage;
u32 act_nr_of_entries, act_pages, counter;
int ret;
void *vpage;
cq = kzalloc(sizeof(*cq), GFP_KERNEL);
if (!cq) {
ehea_error("no mem for cq");
goto out_nomem;
}
cq->attr.max_nr_of_cqes = nr_of_cqe;
cq->attr.cq_token = cq_token;
cq->attr.eq_handle = eq_handle;
cq->adapter = adapter;
cq_handle_ref = &cq->fw_handle;
act_nr_of_entries = 0;
act_pages = 0;
hret = ehea_h_alloc_resource_cq(adapter->handle, &cq->attr,
&cq->fw_handle, &cq->epas);
if (hret != H_SUCCESS) {
ehea_error("alloc_resource_cq failed");
goto out_freemem;
}
ret = hw_queue_ctor(&cq->hw_queue, cq->attr.nr_pages,
EHEA_PAGESIZE, sizeof(struct ehea_cqe));
if (ret)
goto out_freeres;
for (counter = 0; counter < cq->attr.nr_pages; counter++) {
vpage = hw_qpageit_get_inc(&cq->hw_queue);
if (!vpage) {
ehea_error("hw_qpageit_get_inc failed");
goto out_kill_hwq;
}
rpage = virt_to_abs(vpage);
hret = ehea_h_register_rpage(adapter->handle,
0, EHEA_CQ_REGISTER_ORIG,
cq->fw_handle, rpage, 1);
if (hret < H_SUCCESS) {
ehea_error("register_rpage_cq failed ehea_cq=%p "
"hret=%lx counter=%i act_pages=%i",
cq, hret, counter, cq->attr.nr_pages);
goto out_kill_hwq;
}
if (counter == (cq->attr.nr_pages - 1)) {
vpage = hw_qpageit_get_inc(&cq->hw_queue);
if ((hret != H_SUCCESS) || (vpage)) {
ehea_error("registration of pages not "
"complete hret=%lx\n", hret);
goto out_kill_hwq;
}
} else {
if ((hret != H_PAGE_REGISTERED) || (!vpage)) {
ehea_error("CQ: registration of page failed "
"hret=%lx\n", hret);
goto out_kill_hwq;
}
}
}
hw_qeit_reset(&cq->hw_queue);
epa = cq->epas.kernel;
ehea_reset_cq_ep(cq);
ehea_reset_cq_n1(cq);
return cq;
out_kill_hwq:
hw_queue_dtor(&cq->hw_queue);
out_freeres:
ehea_h_free_resource(adapter->handle, cq->fw_handle, FORCE_FREE);
out_freemem:
kfree(cq);
out_nomem:
return NULL;
}
