static void cq_event_callback(struct ehca_shca *shca,
u64 eqe)
{
struct ehca_cq *cq;
u32 token = EHCA_BMASK_GET(EQE_CQ_TOKEN, eqe);
read_lock(&ehca_cq_idr_lock);
cq = idr_find(&ehca_cq_idr, token);
if (cq)
atomic_inc(&cq->nr_events);
read_unlock(&ehca_cq_idr_lock);
if (!cq)
return;
ehca_error_data(shca, cq, cq->ipz_cq_handle.handle);
if (atomic_dec_and_test(&cq->nr_events))
wake_up(&cq->wait_completion);
return;
}
void ehca_tasklet_neq(unsigned long data)
{
struct ehca_shca *shca = (struct ehca_shca*)data;
struct ehca_eqe *eqe;
u64 ret;
eqe = ehca_poll_eq(shca, &shca->neq);
while (eqe) {
if (!EHCA_BMASK_GET(NEQE_COMPLETION_EVENT, eqe->entry))
parse_ec(shca, eqe->entry);
eqe = ehca_poll_eq(shca, &shca->neq);
}
ret = hipz_h_reset_event(shca->ipz_hca_handle,
shca->neq.ipz_eq_handle, 0xFFFFFFFFFFFFFFFFL);
if (ret != H_SUCCESS)
ehca_err(&shca->ib_device, "Can't clear notification events.");
return;
}
int ehca_query_device(struct ib_device *ibdev, struct ib_device_attr *props,
struct ib_udata *uhw)
{
int i, ret = 0;
struct ehca_shca *shca = container_of(ibdev, struct ehca_shca,
ib_device);
struct hipz_query_hca *rblock;
static const u32 cap_mapping[] = {
IB_DEVICE_RESIZE_MAX_WR, HCA_CAP_WQE_RESIZE,
IB_DEVICE_BAD_PKEY_CNTR, HCA_CAP_BAD_P_KEY_CTR,
IB_DEVICE_BAD_QKEY_CNTR, HCA_CAP_Q_KEY_VIOL_CTR,
IB_DEVICE_RAW_MULTI, HCA_CAP_RAW_PACKET_MCAST,
IB_DEVICE_AUTO_PATH_MIG, HCA_CAP_AUTO_PATH_MIG,
IB_DEVICE_CHANGE_PHY_PORT, HCA_CAP_SQD_RTS_PORT_CHANGE,
IB_DEVICE_UD_AV_PORT_ENFORCE, HCA_CAP_AH_PORT_NR_CHECK,
IB_DEVICE_CURR_QP_STATE_MOD, HCA_CAP_CUR_QP_STATE_MOD,
IB_DEVICE_SHUTDOWN_PORT, HCA_CAP_SHUTDOWN_PORT,
IB_DEVICE_INIT_TYPE, HCA_CAP_INIT_TYPE,
IB_DEVICE_PORT_ACTIVE_EVENT, HCA_CAP_PORT_ACTIVE_EVENT,
};
if (uhw->inlen || uhw->outlen)
return -EINVAL;
rblock = ehca_alloc_fw_ctrlblock(GFP_KERNEL);
if (!rblock) {
ehca_err(&shca->ib_device, "Can't allocate rblock memory.");
return -ENOMEM;
}
if (hipz_h_query_hca(shca->ipz_hca_handle, rblock) != H_SUCCESS) {
ehca_err(&shca->ib_device, "Can't query device properties");
ret = -EINVAL;
goto query_device1;
}
memset(props, 0, sizeof(struct ib_device_attr));
props->page_size_cap = shca->hca_cap_mr_pgsize;
props->fw_ver = rblock->hw_ver;
props->max_mr_size = rblock->max_mr_size;
props->vendor_id = rblock->vendor_id >> 8;
props->vendor_part_id = rblock->vendor_part_id >> 16;
props->hw_ver = rblock->hw_ver;
props->max_qp = limit_uint(rblock->max_qp);
props->max_qp_wr = limit_uint(rblock->max_wqes_wq);
props->max_sge = limit_uint(rblock->max_sge);
props->max_sge_rd = limit_uint(rblock->max_sge_rd);
props->max_cq = limit_uint(rblock->max_cq);
props->max_cqe = limit_uint(rblock->max_cqe);
props->max_mr = limit_uint(rblock->max_mr);
props->max_mw = limit_uint(rblock->max_mw);
props->max_pd = limit_uint(rblock->max_pd);
props->max_ah = limit_uint(rblock->max_ah);
props->max_ee = limit_uint(rblock->max_rd_ee_context);
props->max_rdd = limit_uint(rblock->max_rd_domain);
props->max_fmr = limit_uint(rblock->max_mr);
props->max_qp_rd_atom = limit_uint(rblock->max_rr_qp);
props->max_ee_rd_atom = limit_uint(rblock->max_rr_ee_context);
props->max_res_rd_atom = limit_uint(rblock->max_rr_hca);
props->max_qp_init_rd_atom = limit_uint(rblock->max_act_wqs_qp);
props->max_ee_init_rd_atom = limit_uint(rblock->max_act_wqs_ee_context);
if (EHCA_BMASK_GET(HCA_CAP_SRQ, shca->hca_cap)) {
props->max_srq = limit_uint(props->max_qp);
props->max_srq_wr = limit_uint(props->max_qp_wr);
props->max_srq_sge = 3;
}
props->max_pkeys = 16;
/* Some FW versions say 0 here; insert sensible value in that case */
props->local_ca_ack_delay = rblock->local_ca_ack_delay ?
min_t(u8, rblock->local_ca_ack_delay, 255) : 12;
props->max_raw_ipv6_qp = limit_uint(rblock->max_raw_ipv6_qp);
props->max_raw_ethy_qp = limit_uint(rblock->max_raw_ethy_qp);
props->max_mcast_grp = limit_uint(rblock->max_mcast_grp);
props->max_mcast_qp_attach = limit_uint(rblock->max_mcast_qp_attach);
props->max_total_mcast_qp_attach
= limit_uint(rblock->max_total_mcast_qp_attach);
/* translate device capabilities */
props->device_cap_flags = IB_DEVICE_SYS_IMAGE_GUID |
IB_DEVICE_RC_RNR_NAK_GEN | IB_DEVICE_N_NOTIFY_CQ;
for (i = 0; i < ARRAY_SIZE(cap_mapping); i += 2)
if (rblock->hca_cap_indicators & cap_mapping[i + 1])
props->device_cap_flags |= cap_mapping[i];
query_device1:
ehca_free_fw_ctrlblock(rblock);
return ret;
}
void ehca_process_eq(struct ehca_shca *shca, int is_irq)
{
struct ehca_eq *eq = &shca->eq;
struct ehca_eqe_cache_entry *eqe_cache = eq->eqe_cache;
u64 eqe_value, ret;
unsigned long flags;
int eqe_cnt, i;
int eq_empty = 0;
spin_lock_irqsave(&eq->irq_spinlock, flags);
if (is_irq) {
const int max_query_cnt = 100;
int query_cnt = 0;
int int_state = 1;
do {
int_state = hipz_h_query_int_state(
shca->ipz_hca_handle, eq->ist);
query_cnt++;
iosync();
} while (int_state && query_cnt < max_query_cnt);
if (unlikely((query_cnt == max_query_cnt)))
ehca_dbg(&shca->ib_device, "int_state=%x query_cnt=%x",
int_state, query_cnt);
}
/* read out all eqes */
eqe_cnt = 0;
do {
u32 token;
eqe_cache[eqe_cnt].eqe = ehca_poll_eq(shca, eq);
if (!eqe_cache[eqe_cnt].eqe)
break;
eqe_value = eqe_cache[eqe_cnt].eqe->entry;
if (EHCA_BMASK_GET(EQE_COMPLETION_EVENT, eqe_value)) {
token = EHCA_BMASK_GET(EQE_CQ_TOKEN, eqe_value);
read_lock(&ehca_cq_idr_lock);
eqe_cache[eqe_cnt].cq = idr_find(&ehca_cq_idr, token);
if (eqe_cache[eqe_cnt].cq)
atomic_inc(&eqe_cache[eqe_cnt].cq->nr_events);
read_unlock(&ehca_cq_idr_lock);
if (!eqe_cache[eqe_cnt].cq) {
ehca_err(&shca->ib_device,
"Invalid eqe for non-existing cq "
"token=%x", token);
continue;
}
} else
eqe_cache[eqe_cnt].cq = NULL;
eqe_cnt++;
} while (eqe_cnt < EHCA_EQE_CACHE_SIZE);
if (!eqe_cnt) {
if (is_irq)
ehca_dbg(&shca->ib_device,
"No eqe found for irq event");
goto unlock_irq_spinlock;
} else if (!is_irq) {
ret = hipz_h_eoi(eq->ist);
if (ret != H_SUCCESS)
ehca_err(&shca->ib_device,
"bad return code EOI -rc = %lld\n", ret);
ehca_dbg(&shca->ib_device, "deadman found %x eqe", eqe_cnt);
}
if (unlikely(eqe_cnt == EHCA_EQE_CACHE_SIZE))
ehca_dbg(&shca->ib_device, "too many eqes for one irq event");
/* enable irq for new packets */
for (i = 0; i < eqe_cnt; i++) {
if (eq->eqe_cache[i].cq)
reset_eq_pending(eq->eqe_cache[i].cq);
}
/* check eq */
spin_lock(&eq->spinlock);
eq_empty = (!ipz_eqit_eq_peek_valid(&shca->eq.ipz_queue));
spin_unlock(&eq->spinlock);
/* call completion handler for cached eqes */
for (i = 0; i < eqe_cnt; i++)
if (eq->eqe_cache[i].cq) {
if (ehca_scaling_code)
queue_comp_task(eq->eqe_cache[i].cq);
else {
struct ehca_cq *cq = eq->eqe_cache[i].cq;
comp_event_callback(cq);
if (atomic_dec_and_test(&cq->nr_events))
wake_up(&cq->wait_completion);
}
} else {
ehca_dbg(&shca->ib_device, "Got non completion event");
parse_identifier(shca, eq->eqe_cache[i].eqe->entry);
}
/* poll eq if not empty */
if (eq_empty)
goto unlock_irq_spinlock;
do {
struct ehca_eqe *eqe;
eqe = ehca_poll_eq(shca, &shca->eq);
if (!eqe)
break;
process_eqe(shca, eqe);
} while (1);
unlock_irq_spinlock:
spin_unlock_irqrestore(&eq->irq_spinlock, flags);
}
static void parse_ec(struct ehca_shca *shca, u64 eqe)
{
u8 ec = EHCA_BMASK_GET(NEQE_EVENT_CODE, eqe);
u8 port = EHCA_BMASK_GET(NEQE_PORT_NUMBER, eqe);
u8 spec_event;
struct ehca_sport *sport = &shca->sport[port - 1];
switch (ec) {
case 0x30: /* port availability change */
if (EHCA_BMASK_GET(NEQE_PORT_AVAILABILITY, eqe)) {
/* only replay modify_qp calls in autodetect mode;
* if AQP1 was destroyed, the port is already down
* again and we can drop the event.
*/
if (ehca_nr_ports < 0)
if (replay_modify_qp(sport))
break;
sport->port_state = IB_PORT_ACTIVE;
dispatch_port_event(shca, port, IB_EVENT_PORT_ACTIVE,
"is active");
ehca_query_sma_attr(shca, port, &sport->saved_attr);
} else {
sport->port_state = IB_PORT_DOWN;
dispatch_port_event(shca, port, IB_EVENT_PORT_ERR,
"is inactive");
}
break;
case 0x31:
/* port configuration change
* disruptive change is caused by
* LID, PKEY or SM change
*/
if (EHCA_BMASK_GET(NEQE_DISRUPTIVE, eqe)) {
ehca_warn(&shca->ib_device, "disruptive port "
"%d configuration change", port);
sport->port_state = IB_PORT_DOWN;
dispatch_port_event(shca, port, IB_EVENT_PORT_ERR,
"is inactive");
sport->port_state = IB_PORT_ACTIVE;
dispatch_port_event(shca, port, IB_EVENT_PORT_ACTIVE,
"is active");
ehca_query_sma_attr(shca, port,
&sport->saved_attr);
} else
notify_port_conf_change(shca, port);
break;
case 0x32: /* adapter malfunction */
ehca_err(&shca->ib_device, "Adapter malfunction.");
break;
case 0x33: /* trace stopped */
ehca_err(&shca->ib_device, "Traced stopped.");
break;
case 0x34: /* util async event */
spec_event = EHCA_BMASK_GET(NEQE_SPECIFIC_EVENT, eqe);
if (spec_event == 0x80) /* client reregister required */
dispatch_port_event(shca, port,
IB_EVENT_CLIENT_REREGISTER,
"client reregister req.");
else
ehca_warn(&shca->ib_device, "Unknown util async "
"event %x on port %x", spec_event, port);
break;
default:
ehca_err(&shca->ib_device, "Unknown event code: %x on %s.",
ec, shca->ib_device.name);
break;
}
return;
}
static void parse_identifier(struct ehca_shca *shca, u64 eqe)
{
u8 identifier = EHCA_BMASK_GET(EQE_EE_IDENTIFIER, eqe);
switch (identifier) {
case 0x02: /* path migrated */
qp_event_callback(shca, eqe, IB_EVENT_PATH_MIG, 0);
break;
case 0x03: /* communication established */
qp_event_callback(shca, eqe, IB_EVENT_COMM_EST, 0);
break;
case 0x04: /* send queue drained */
qp_event_callback(shca, eqe, IB_EVENT_SQ_DRAINED, 0);
break;
case 0x05: /* QP error */
case 0x06: /* QP error */
qp_event_callback(shca, eqe, IB_EVENT_QP_FATAL, 1);
break;
case 0x07: /* CQ error */
case 0x08: /* CQ error */
cq_event_callback(shca, eqe);
break;
case 0x09: /* MRMWPTE error */
ehca_err(&shca->ib_device, "MRMWPTE error.");
break;
case 0x0A: /* port event */
ehca_err(&shca->ib_device, "Port event.");
break;
case 0x0B: /* MR access error */
ehca_err(&shca->ib_device, "MR access error.");
break;
case 0x0C: /* EQ error */
ehca_err(&shca->ib_device, "EQ error.");
break;
case 0x0D: /* P/Q_Key mismatch */
ehca_err(&shca->ib_device, "P/Q_Key mismatch.");
break;
case 0x10: /* sampling complete */
ehca_err(&shca->ib_device, "Sampling complete.");
break;
case 0x11: /* unaffiliated access error */
ehca_err(&shca->ib_device, "Unaffiliated access error.");
break;
case 0x12: /* path migrating */
ehca_err(&shca->ib_device, "Path migrating.");
break;
case 0x13: /* interface trace stopped */
ehca_err(&shca->ib_device, "Interface trace stopped.");
break;
case 0x14: /* first error capture info available */
ehca_info(&shca->ib_device, "First error capture available");
break;
case 0x15: /* SRQ limit reached */
qp_event_callback(shca, eqe, IB_EVENT_SRQ_LIMIT_REACHED, 0);
break;
default:
ehca_err(&shca->ib_device, "Unknown identifier: %x on %s.",
identifier, shca->ib_device.name);
break;
}
return;
}
static void parse_ec(struct ehca_shca *shca, u64 eqe)
{
u8 ec = EHCA_BMASK_GET(NEQE_EVENT_CODE, eqe);
u8 port = EHCA_BMASK_GET(NEQE_PORT_NUMBER, eqe);
u8 spec_event;
struct ehca_sport *sport = &shca->sport[port - 1];
unsigned long flags;
switch (ec) {
case 0x30: /* port availability change */
if (EHCA_BMASK_GET(NEQE_PORT_AVAILABILITY, eqe)) {
int suppress_event;
/* replay modify_qp for sqps */
spin_lock_irqsave(&sport->mod_sqp_lock, flags);
suppress_event = !sport->ibqp_sqp[IB_QPT_GSI];
if (sport->ibqp_sqp[IB_QPT_SMI])
ehca_recover_sqp(sport->ibqp_sqp[IB_QPT_SMI]);
if (!suppress_event)
ehca_recover_sqp(sport->ibqp_sqp[IB_QPT_GSI]);
spin_unlock_irqrestore(&sport->mod_sqp_lock, flags);
/* AQP1 was destroyed, ignore this event */
if (suppress_event)
break;
sport->port_state = IB_PORT_ACTIVE;
dispatch_port_event(shca, port, IB_EVENT_PORT_ACTIVE,
"is active");
ehca_query_sma_attr(shca, port,
&sport->saved_attr);
} else {
sport->port_state = IB_PORT_DOWN;
dispatch_port_event(shca, port, IB_EVENT_PORT_ERR,
"is inactive");
}
break;
case 0x31:
/* port configuration change
* disruptive change is caused by
* LID, PKEY or SM change
*/
if (EHCA_BMASK_GET(NEQE_DISRUPTIVE, eqe)) {
ehca_warn(&shca->ib_device, "disruptive port "
"%d configuration change", port);
sport->port_state = IB_PORT_DOWN;
dispatch_port_event(shca, port, IB_EVENT_PORT_ERR,
"is inactive");
sport->port_state = IB_PORT_ACTIVE;
dispatch_port_event(shca, port, IB_EVENT_PORT_ACTIVE,
"is active");
ehca_query_sma_attr(shca, port,
&sport->saved_attr);
} else
notify_port_conf_change(shca, port);
break;
case 0x32: /* adapter malfunction */
ehca_err(&shca->ib_device, "Adapter malfunction.");
break;
case 0x33: /* trace stopped */
ehca_err(&shca->ib_device, "Traced stopped.");
break;
case 0x34: /* util async event */
spec_event = EHCA_BMASK_GET(NEQE_SPECIFIC_EVENT, eqe);
if (spec_event == 0x80) /* client reregister required */
dispatch_port_event(shca, port,
IB_EVENT_CLIENT_REREGISTER,
"client reregister req.");
else
ehca_warn(&shca->ib_device, "Unknown util async "
"event %x on port %x", spec_event, port);
break;
default:
ehca_err(&shca->ib_device, "Unknown event code: %x on %s.",
ec, shca->ib_device.name);
break;
}
return;
}
u64 hipz_h_alloc_resource_qp(const struct ipz_adapter_handle adapter_handle,
struct ehca_alloc_qp_parms *parms, int is_user)
{
int rc;
u64 ret;
u64 allocate_controls, max_r10_reg, r11, r12;
unsigned long outs[PLPAR_HCALL9_BUFSIZE];
allocate_controls =
EHCA_BMASK_SET(H_ALL_RES_QP_ENHANCED_OPS, parms->ext_type)
| EHCA_BMASK_SET(H_ALL_RES_QP_PTE_PIN, 0)
| EHCA_BMASK_SET(H_ALL_RES_QP_SERVICE_TYPE, parms->servicetype)
| EHCA_BMASK_SET(H_ALL_RES_QP_SIGNALING_TYPE, parms->sigtype)
| EHCA_BMASK_SET(H_ALL_RES_QP_STORAGE, parms->qp_storage)
| EHCA_BMASK_SET(H_ALL_RES_QP_SMALL_SQ_PAGE_SIZE,
parms->squeue.page_size)
| EHCA_BMASK_SET(H_ALL_RES_QP_SMALL_RQ_PAGE_SIZE,
parms->rqueue.page_size)
| EHCA_BMASK_SET(H_ALL_RES_QP_LL_RQ_CQE_POSTING,
!!(parms->ll_comp_flags & LLQP_RECV_COMP))
| EHCA_BMASK_SET(H_ALL_RES_QP_LL_SQ_CQE_POSTING,
!!(parms->ll_comp_flags & LLQP_SEND_COMP))
| EHCA_BMASK_SET(H_ALL_RES_QP_UD_AV_LKEY_CTRL,
parms->ud_av_l_key_ctl)
| EHCA_BMASK_SET(H_ALL_RES_QP_RESOURCE_TYPE, 1);
max_r10_reg =
EHCA_BMASK_SET(H_ALL_RES_QP_MAX_OUTST_SEND_WR,
parms->squeue.max_wr + 1)
| EHCA_BMASK_SET(H_ALL_RES_QP_MAX_OUTST_RECV_WR,
parms->rqueue.max_wr + 1)
| EHCA_BMASK_SET(H_ALL_RES_QP_MAX_SEND_SGE,
parms->squeue.max_sge)
| EHCA_BMASK_SET(H_ALL_RES_QP_MAX_RECV_SGE,
parms->rqueue.max_sge);
r11 = EHCA_BMASK_SET(H_ALL_RES_QP_SRQ_QP_TOKEN, parms->srq_token);
if (parms->ext_type == EQPT_SRQ)
r12 = EHCA_BMASK_SET(H_ALL_RES_QP_SRQ_LIMIT, parms->srq_limit);
else
r12 = EHCA_BMASK_SET(H_ALL_RES_QP_SRQ_QPN, parms->srq_qpn);
ret = ehca_plpar_hcall9(H_ALLOC_RESOURCE, outs,
adapter_handle.handle,
allocate_controls,
parms->send_cq_handle.handle,
parms->recv_cq_handle.handle,
parms->eq_handle.handle,
((u64)parms->token << 32) | parms->pd.value,
max_r10_reg, r11, r12);
parms->qp_handle.handle = outs[0];
parms->real_qp_num = (u32)outs[1];
parms->squeue.act_nr_wqes =
(u16)EHCA_BMASK_GET(H_ALL_RES_QP_ACT_OUTST_SEND_WR, outs[2]);
parms->rqueue.act_nr_wqes =
(u16)EHCA_BMASK_GET(H_ALL_RES_QP_ACT_OUTST_RECV_WR, outs[2]);
parms->squeue.act_nr_sges =
(u8)EHCA_BMASK_GET(H_ALL_RES_QP_ACT_SEND_SGE, outs[3]);
parms->rqueue.act_nr_sges =
(u8)EHCA_BMASK_GET(H_ALL_RES_QP_ACT_RECV_SGE, outs[3]);
parms->squeue.queue_size =
(u32)EHCA_BMASK_GET(H_ALL_RES_QP_SQUEUE_SIZE_PAGES, outs[4]);
parms->rqueue.queue_size =
(u32)EHCA_BMASK_GET(H_ALL_RES_QP_RQUEUE_SIZE_PAGES, outs[4]);
if (ret == H_SUCCESS) {
rc = hcp_galpas_ctor(&parms->galpas, is_user, outs[6], outs[6]);
if (rc) {
ehca_gen_err("Could not establish HW access. rc=%d paddr=%#lx",
rc, outs[6]);
ehca_plpar_hcall_norets(H_FREE_RESOURCE,
adapter_handle.handle,
parms->qp_handle.handle,
0, 0, 0, 0, 0);
ret = H_NO_MEM;
}
}
if (ret == H_NOT_ENOUGH_RESOURCES)
ehca_gen_err("Not enough resources. ret=%lli", ret);
return ret;
}
u64 hipz_h_alloc_resource_qp(const struct ipz_adapter_handle adapter_handle,
struct ehca_qp *qp,
struct ehca_alloc_qp_parms *parms)
{
u64 ret;
u64 allocate_controls;
u64 max_r10_reg;
u64 outs[PLPAR_HCALL9_BUFSIZE];
u16 max_nr_receive_wqes = qp->init_attr.cap.max_recv_wr + 1;
u16 max_nr_send_wqes = qp->init_attr.cap.max_send_wr + 1;
int daqp_ctrl = parms->daqp_ctrl;
allocate_controls =
EHCA_BMASK_SET(H_ALL_RES_QP_ENHANCED_OPS,
(daqp_ctrl & DAQP_CTRL_ENABLE) ? 1 : 0)
| EHCA_BMASK_SET(H_ALL_RES_QP_PTE_PIN, 0)
| EHCA_BMASK_SET(H_ALL_RES_QP_SERVICE_TYPE, parms->servicetype)
| EHCA_BMASK_SET(H_ALL_RES_QP_SIGNALING_TYPE, parms->sigtype)
| EHCA_BMASK_SET(H_ALL_RES_QP_LL_RQ_CQE_POSTING,
(daqp_ctrl & DAQP_CTRL_RECV_COMP) ? 1 : 0)
| EHCA_BMASK_SET(H_ALL_RES_QP_LL_SQ_CQE_POSTING,
(daqp_ctrl & DAQP_CTRL_SEND_COMP) ? 1 : 0)
| EHCA_BMASK_SET(H_ALL_RES_QP_UD_AV_LKEY_CTRL,
parms->ud_av_l_key_ctl)
| EHCA_BMASK_SET(H_ALL_RES_QP_RESOURCE_TYPE, 1);
max_r10_reg =
EHCA_BMASK_SET(H_ALL_RES_QP_MAX_OUTST_SEND_WR,
max_nr_send_wqes)
| EHCA_BMASK_SET(H_ALL_RES_QP_MAX_OUTST_RECV_WR,
max_nr_receive_wqes)
| EHCA_BMASK_SET(H_ALL_RES_QP_MAX_SEND_SGE,
parms->max_send_sge)
| EHCA_BMASK_SET(H_ALL_RES_QP_MAX_RECV_SGE,
parms->max_recv_sge);
ret = ehca_plpar_hcall9(H_ALLOC_RESOURCE, outs,
adapter_handle.handle, /* r4 */
allocate_controls, /* r5 */
qp->send_cq->ipz_cq_handle.handle,
qp->recv_cq->ipz_cq_handle.handle,
parms->ipz_eq_handle.handle,
((u64)qp->token << 32) | parms->pd.value,
max_r10_reg, /* r10 */
parms->ud_av_l_key_ctl, /* r11 */
0);
qp->ipz_qp_handle.handle = outs[0];
qp->real_qp_num = (u32)outs[1];
parms->act_nr_send_wqes =
(u16)EHCA_BMASK_GET(H_ALL_RES_QP_ACT_OUTST_SEND_WR, outs[2]);
parms->act_nr_recv_wqes =
(u16)EHCA_BMASK_GET(H_ALL_RES_QP_ACT_OUTST_RECV_WR, outs[2]);
parms->act_nr_send_sges =
(u8)EHCA_BMASK_GET(H_ALL_RES_QP_ACT_SEND_SGE, outs[3]);
parms->act_nr_recv_sges =
(u8)EHCA_BMASK_GET(H_ALL_RES_QP_ACT_RECV_SGE, outs[3]);
parms->nr_sq_pages =
(u32)EHCA_BMASK_GET(H_ALL_RES_QP_SQUEUE_SIZE_PAGES, outs[4]);
parms->nr_rq_pages =
(u32)EHCA_BMASK_GET(H_ALL_RES_QP_RQUEUE_SIZE_PAGES, outs[4]);
if (ret == H_SUCCESS)
hcp_galpas_ctor(&qp->galpas, outs[6], outs[6]);
if (ret == H_NOT_ENOUGH_RESOURCES)
ehca_gen_err("Not enough resources. ret=%lx", ret);
return ret;
}
int ehca_query_device(struct ib_device *ibdev, struct ib_device_attr *props)
{
int i, ret = 0;
struct ehca_shca *shca = container_of(ibdev, struct ehca_shca,
ib_device);
struct hipz_query_hca *rblock;
static const u32 cap_mapping[] = {
IB_DEVICE_RESIZE_MAX_WR, HCA_CAP_WQE_RESIZE,
IB_DEVICE_BAD_PKEY_CNTR, HCA_CAP_BAD_P_KEY_CTR,
IB_DEVICE_BAD_QKEY_CNTR, HCA_CAP_Q_KEY_VIOL_CTR,
IB_DEVICE_RAW_MULTI, HCA_CAP_RAW_PACKET_MCAST,
IB_DEVICE_AUTO_PATH_MIG, HCA_CAP_AUTO_PATH_MIG,
IB_DEVICE_CHANGE_PHY_PORT, HCA_CAP_SQD_RTS_PORT_CHANGE,
IB_DEVICE_UD_AV_PORT_ENFORCE, HCA_CAP_AH_PORT_NR_CHECK,
IB_DEVICE_CURR_QP_STATE_MOD, HCA_CAP_CUR_QP_STATE_MOD,
IB_DEVICE_SHUTDOWN_PORT, HCA_CAP_SHUTDOWN_PORT,
IB_DEVICE_INIT_TYPE, HCA_CAP_INIT_TYPE,
IB_DEVICE_PORT_ACTIVE_EVENT, HCA_CAP_PORT_ACTIVE_EVENT,
};
rblock = ehca_alloc_fw_ctrlblock(GFP_KERNEL);
if (!rblock) {
ehca_err(&shca->ib_device, "Can't allocate rblock memory.");
return -ENOMEM;
}
if (hipz_h_query_hca(shca->ipz_hca_handle, rblock) != H_SUCCESS) {
ehca_err(&shca->ib_device, "Can't query device properties");
ret = -EINVAL;
goto query_device1;
}
memset(props, 0, sizeof(struct ib_device_attr));
props->fw_ver = rblock->hw_ver;
props->max_mr_size = rblock->max_mr_size;
props->vendor_id = rblock->vendor_id >> 8;
props->vendor_part_id = rblock->vendor_part_id >> 16;
props->hw_ver = rblock->hw_ver;
props->max_qp = min_t(int, rblock->max_qp, INT_MAX);
props->max_qp_wr = min_t(int, rblock->max_wqes_wq, INT_MAX);
props->max_sge = min_t(int, rblock->max_sge, INT_MAX);
props->max_sge_rd = min_t(int, rblock->max_sge_rd, INT_MAX);
props->max_cq = min_t(int, rblock->max_cq, INT_MAX);
props->max_cqe = min_t(int, rblock->max_cqe, INT_MAX);
props->max_mr = min_t(int, rblock->max_mr, INT_MAX);
props->max_mw = min_t(int, rblock->max_mw, INT_MAX);
props->max_pd = min_t(int, rblock->max_pd, INT_MAX);
props->max_ah = min_t(int, rblock->max_ah, INT_MAX);
props->max_fmr = min_t(int, rblock->max_mr, INT_MAX);
if (EHCA_BMASK_GET(HCA_CAP_SRQ, shca->hca_cap)) {
props->max_srq = props->max_qp;
props->max_srq_wr = props->max_qp_wr;
props->max_srq_sge = 3;
}
props->max_pkeys = 16;
props->local_ca_ack_delay
= rblock->local_ca_ack_delay;
props->max_raw_ipv6_qp
= min_t(int, rblock->max_raw_ipv6_qp, INT_MAX);
props->max_raw_ethy_qp
= min_t(int, rblock->max_raw_ethy_qp, INT_MAX);
props->max_mcast_grp
= min_t(int, rblock->max_mcast_grp, INT_MAX);
props->max_mcast_qp_attach
= min_t(int, rblock->max_mcast_qp_attach, INT_MAX);
props->max_total_mcast_qp_attach
= min_t(int, rblock->max_total_mcast_qp_attach, INT_MAX);
/* translate device capabilities */
props->device_cap_flags = IB_DEVICE_SYS_IMAGE_GUID |
IB_DEVICE_RC_RNR_NAK_GEN | IB_DEVICE_N_NOTIFY_CQ;
for (i = 0; i < ARRAY_SIZE(cap_mapping); i += 2)
if (rblock->hca_cap_indicators & cap_mapping[i + 1])
props->device_cap_flags |= cap_mapping[i];
query_device1:
ehca_free_fw_ctrlblock(rblock);
return ret;
}
static void parse_ec(struct ehca_shca *shca, u64 eqe)
{
struct ib_event event;
u8 ec = EHCA_BMASK_GET(NEQE_EVENT_CODE, eqe);
u8 port = EHCA_BMASK_GET(NEQE_PORT_NUMBER, eqe);
switch (ec) {
case 0x30: /* port availability change */
if (EHCA_BMASK_GET(NEQE_PORT_AVAILABILITY, eqe)) {
ehca_info(&shca->ib_device,
"port %x is active.", port);
event.device = &shca->ib_device;
event.event = IB_EVENT_PORT_ACTIVE;
event.element.port_num = port;
shca->sport[port - 1].port_state = IB_PORT_ACTIVE;
ib_dispatch_event(&event);
} else {
ehca_info(&shca->ib_device,
"port %x is inactive.", port);
event.device = &shca->ib_device;
event.event = IB_EVENT_PORT_ERR;
event.element.port_num = port;
shca->sport[port - 1].port_state = IB_PORT_DOWN;
ib_dispatch_event(&event);
}
break;
case 0x31:
/* port configuration change
* disruptive change is caused by
* LID, PKEY or SM change
*/
ehca_warn(&shca->ib_device,
"disruptive port %x configuration change", port);
ehca_info(&shca->ib_device,
"port %x is inactive.", port);
event.device = &shca->ib_device;
event.event = IB_EVENT_PORT_ERR;
event.element.port_num = port;
shca->sport[port - 1].port_state = IB_PORT_DOWN;
ib_dispatch_event(&event);
ehca_info(&shca->ib_device,
"port %x is active.", port);
event.device = &shca->ib_device;
event.event = IB_EVENT_PORT_ACTIVE;
event.element.port_num = port;
shca->sport[port - 1].port_state = IB_PORT_ACTIVE;
ib_dispatch_event(&event);
break;
case 0x32: /* adapter malfunction */
ehca_err(&shca->ib_device, "Adapter malfunction.");
break;
case 0x33: /* trace stopped */
ehca_err(&shca->ib_device, "Traced stopped.");
break;
default:
ehca_err(&shca->ib_device, "Unknown event code: %x on %s.",
ec, shca->ib_device.name);
break;
}
return;
}
