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-rw-r--r--drivers/infiniband/hw/cxgb4/cm.c80
-rw-r--r--drivers/infiniband/hw/cxgb4/device.c2
-rw-r--r--drivers/infiniband/hw/cxgb4/iw_cxgb4.h9
-rw-r--r--drivers/infiniband/hw/cxgb4/provider.c6
-rw-r--r--drivers/infiniband/hw/cxgb4/qp.c54
-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/cxgb4.h3
-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c18
-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h2
-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h2
9 files changed, 142 insertions, 34 deletions
diff --git a/drivers/infiniband/hw/cxgb4/cm.c b/drivers/infiniband/hw/cxgb4/cm.c
index d62a0f9dd11a..df5bd3df08a2 100644
--- a/drivers/infiniband/hw/cxgb4/cm.c
+++ b/drivers/infiniband/hw/cxgb4/cm.c
@@ -79,9 +79,10 @@ static int dack_mode = 1;
module_param(dack_mode, int, 0644);
MODULE_PARM_DESC(dack_mode, "Delayed ack mode (default=1)");
-int c4iw_max_read_depth = 8;
+uint c4iw_max_read_depth = 32;
module_param(c4iw_max_read_depth, int, 0644);
-MODULE_PARM_DESC(c4iw_max_read_depth, "Per-connection max ORD/IRD (default=8)");
+MODULE_PARM_DESC(c4iw_max_read_depth,
+ "Per-connection max ORD/IRD (default=32)");
static int enable_tcp_timestamps;
module_param(enable_tcp_timestamps, int, 0644);
@@ -813,6 +814,8 @@ static void send_mpa_req(struct c4iw_ep *ep, struct sk_buff *skb,
if (mpa_rev_to_use == 2) {
mpa->private_data_size = htons(ntohs(mpa->private_data_size) +
sizeof (struct mpa_v2_conn_params));
+ PDBG("%s initiator ird %u ord %u\n", __func__, ep->ird,
+ ep->ord);
mpa_v2_params.ird = htons((u16)ep->ird);
mpa_v2_params.ord = htons((u16)ep->ord);
@@ -1182,8 +1185,8 @@ static int connect_request_upcall(struct c4iw_ep *ep)
sizeof(struct mpa_v2_conn_params);
} else {
/* this means MPA_v1 is used. Send max supported */
- event.ord = c4iw_max_read_depth;
- event.ird = c4iw_max_read_depth;
+ event.ord = cur_max_read_depth(ep->com.dev);
+ event.ird = cur_max_read_depth(ep->com.dev);
event.private_data_len = ep->plen;
event.private_data = ep->mpa_pkt + sizeof(struct mpa_message);
}
@@ -1247,6 +1250,8 @@ static int update_rx_credits(struct c4iw_ep *ep, u32 credits)
return credits;
}
+#define RELAXED_IRD_NEGOTIATION 1
+
static int process_mpa_reply(struct c4iw_ep *ep, struct sk_buff *skb)
{
struct mpa_message *mpa;
@@ -1358,17 +1363,33 @@ static int process_mpa_reply(struct c4iw_ep *ep, struct sk_buff *skb)
MPA_V2_IRD_ORD_MASK;
resp_ord = ntohs(mpa_v2_params->ord) &
MPA_V2_IRD_ORD_MASK;
+ PDBG("%s responder ird %u ord %u ep ird %u ord %u\n",
+ __func__, resp_ird, resp_ord, ep->ird, ep->ord);
/*
* This is a double-check. Ideally, below checks are
* not required since ird/ord stuff has been taken
* care of in c4iw_accept_cr
*/
- if ((ep->ird < resp_ord) || (ep->ord > resp_ird)) {
+ if (ep->ird < resp_ord) {
+ if (RELAXED_IRD_NEGOTIATION && resp_ord <=
+ ep->com.dev->rdev.lldi.max_ordird_qp)
+ ep->ird = resp_ord;
+ else
+ insuff_ird = 1;
+ } else if (ep->ird > resp_ord) {
+ ep->ird = resp_ord;
+ }
+ if (ep->ord > resp_ird) {
+ if (RELAXED_IRD_NEGOTIATION)
+ ep->ord = resp_ird;
+ else
+ insuff_ird = 1;
+ }
+ if (insuff_ird) {
err = -ENOMEM;
ep->ird = resp_ord;
ep->ord = resp_ird;
- insuff_ird = 1;
}
if (ntohs(mpa_v2_params->ird) &
@@ -1571,6 +1592,8 @@ static void process_mpa_request(struct c4iw_ep *ep, struct sk_buff *skb)
MPA_V2_IRD_ORD_MASK;
ep->ord = ntohs(mpa_v2_params->ord) &
MPA_V2_IRD_ORD_MASK;
+ PDBG("%s initiator ird %u ord %u\n", __func__, ep->ird,
+ ep->ord);
if (ntohs(mpa_v2_params->ird) & MPA_V2_PEER2PEER_MODEL)
if (peer2peer) {
if (ntohs(mpa_v2_params->ord) &
@@ -2724,8 +2747,8 @@ int c4iw_accept_cr(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
BUG_ON(!qp);
set_bit(ULP_ACCEPT, &ep->com.history);
- if ((conn_param->ord > c4iw_max_read_depth) ||
- (conn_param->ird > c4iw_max_read_depth)) {
+ if ((conn_param->ord > cur_max_read_depth(ep->com.dev)) ||
+ (conn_param->ird > cur_max_read_depth(ep->com.dev))) {
abort_connection(ep, NULL, GFP_KERNEL);
err = -EINVAL;
goto err;
@@ -2733,31 +2756,41 @@ int c4iw_accept_cr(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
if (ep->mpa_attr.version == 2 && ep->mpa_attr.enhanced_rdma_conn) {
if (conn_param->ord > ep->ird) {
- ep->ird = conn_param->ird;
- ep->ord = conn_param->ord;
- send_mpa_reject(ep, conn_param->private_data,
- conn_param->private_data_len);
- abort_connection(ep, NULL, GFP_KERNEL);
- err = -ENOMEM;
- goto err;
+ if (RELAXED_IRD_NEGOTIATION) {
+ ep->ord = ep->ird;
+ } else {
+ ep->ird = conn_param->ird;
+ ep->ord = conn_param->ord;
+ send_mpa_reject(ep, conn_param->private_data,
+ conn_param->private_data_len);
+ abort_connection(ep, NULL, GFP_KERNEL);
+ err = -ENOMEM;
+ goto err;
+ }
}
- if (conn_param->ird > ep->ord) {
- if (!ep->ord)
- conn_param->ird = 1;
- else {
+ if (conn_param->ird < ep->ord) {
+ if (RELAXED_IRD_NEGOTIATION &&
+ ep->ord <= h->rdev.lldi.max_ordird_qp) {
+ conn_param->ird = ep->ord;
+ } else {
abort_connection(ep, NULL, GFP_KERNEL);
err = -ENOMEM;
goto err;
}
}
-
}
ep->ird = conn_param->ird;
ep->ord = conn_param->ord;
- if (ep->mpa_attr.version != 2)
+ if (ep->mpa_attr.version == 1) {
if (peer2peer && ep->ird == 0)
ep->ird = 1;
+ } else {
+ if (peer2peer &&
+ (ep->mpa_attr.p2p_type != FW_RI_INIT_P2PTYPE_DISABLED) &&
+ (p2p_type == FW_RI_INIT_P2PTYPE_READ_REQ) && ep->ord == 0)
+ ep->ird = 1;
+ }
PDBG("%s %d ird %d ord %d\n", __func__, __LINE__, ep->ird, ep->ord);
@@ -2796,6 +2829,7 @@ int c4iw_accept_cr(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
return 0;
err1:
ep->com.cm_id = NULL;
+ abort_connection(ep, NULL, GFP_KERNEL);
cm_id->rem_ref(cm_id);
err:
mutex_unlock(&ep->com.mutex);
@@ -2879,8 +2913,8 @@ int c4iw_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
int iptype;
int iwpm_err = 0;
- if ((conn_param->ord > c4iw_max_read_depth) ||
- (conn_param->ird > c4iw_max_read_depth)) {
+ if ((conn_param->ord > cur_max_read_depth(dev)) ||
+ (conn_param->ird > cur_max_read_depth(dev))) {
err = -EINVAL;
goto out;
}
diff --git a/drivers/infiniband/hw/cxgb4/device.c b/drivers/infiniband/hw/cxgb4/device.c
index 88291ef82941..e76358efcaa1 100644
--- a/drivers/infiniband/hw/cxgb4/device.c
+++ b/drivers/infiniband/hw/cxgb4/device.c
@@ -348,6 +348,7 @@ static int stats_show(struct seq_file *seq, void *v)
dev->rdev.stats.act_ofld_conn_fails);
seq_printf(seq, "PAS_OFLD_CONN_FAILS: %10llu\n",
dev->rdev.stats.pas_ofld_conn_fails);
+ seq_printf(seq, "AVAILABLE IRD: %10u\n", dev->avail_ird);
return 0;
}
@@ -839,6 +840,7 @@ static struct c4iw_dev *c4iw_alloc(const struct cxgb4_lld_info *infop)
mutex_init(&devp->rdev.stats.lock);
mutex_init(&devp->db_mutex);
INIT_LIST_HEAD(&devp->db_fc_list);
+ devp->avail_ird = devp->rdev.lldi.max_ird_adapter;
if (c4iw_debugfs_root) {
devp->debugfs_root = debugfs_create_dir(
diff --git a/drivers/infiniband/hw/cxgb4/iw_cxgb4.h b/drivers/infiniband/hw/cxgb4/iw_cxgb4.h
index 9b9754c69ea0..75541cb833c6 100644
--- a/drivers/infiniband/hw/cxgb4/iw_cxgb4.h
+++ b/drivers/infiniband/hw/cxgb4/iw_cxgb4.h
@@ -249,6 +249,7 @@ struct c4iw_dev {
struct idr atid_idr;
struct idr stid_idr;
struct list_head db_fc_list;
+ u32 avail_ird;
};
static inline struct c4iw_dev *to_c4iw_dev(struct ib_device *ibdev)
@@ -330,6 +331,13 @@ static inline void remove_handle_nolock(struct c4iw_dev *rhp,
_remove_handle(rhp, idr, id, 0);
}
+extern uint c4iw_max_read_depth;
+
+static inline int cur_max_read_depth(struct c4iw_dev *dev)
+{
+ return min(dev->rdev.lldi.max_ordird_qp, c4iw_max_read_depth);
+}
+
struct c4iw_pd {
struct ib_pd ibpd;
u32 pdid;
@@ -1003,7 +1011,6 @@ void c4iw_ev_dispatch(struct c4iw_dev *dev, struct t4_cqe *err_cqe);
extern struct cxgb4_client t4c_client;
extern c4iw_handler_func c4iw_handlers[NUM_CPL_CMDS];
-extern int c4iw_max_read_depth;
extern int db_fc_threshold;
extern int db_coalescing_threshold;
extern int use_dsgl;
diff --git a/drivers/infiniband/hw/cxgb4/provider.c b/drivers/infiniband/hw/cxgb4/provider.c
index 1d41b92caaf5..67c4a6908021 100644
--- a/drivers/infiniband/hw/cxgb4/provider.c
+++ b/drivers/infiniband/hw/cxgb4/provider.c
@@ -322,8 +322,10 @@ static int c4iw_query_device(struct ib_device *ibdev,
props->max_qp_wr = dev->rdev.hw_queue.t4_max_qp_depth;
props->max_sge = T4_MAX_RECV_SGE;
props->max_sge_rd = 1;
- props->max_qp_rd_atom = c4iw_max_read_depth;
- props->max_qp_init_rd_atom = c4iw_max_read_depth;
+ props->max_res_rd_atom = dev->rdev.lldi.max_ird_adapter;
+ props->max_qp_rd_atom = min(dev->rdev.lldi.max_ordird_qp,
+ c4iw_max_read_depth);
+ props->max_qp_init_rd_atom = props->max_qp_rd_atom;
props->max_cq = T4_MAX_NUM_CQ;
props->max_cqe = dev->rdev.hw_queue.t4_max_cq_depth;
props->max_mr = c4iw_num_stags(&dev->rdev);
diff --git a/drivers/infiniband/hw/cxgb4/qp.c b/drivers/infiniband/hw/cxgb4/qp.c
index 6f74e0e9a022..0de3cf64eb5e 100644
--- a/drivers/infiniband/hw/cxgb4/qp.c
+++ b/drivers/infiniband/hw/cxgb4/qp.c
@@ -58,6 +58,31 @@ static int max_fr_immd = T4_MAX_FR_IMMD;
module_param(max_fr_immd, int, 0644);
MODULE_PARM_DESC(max_fr_immd, "fastreg threshold for using DSGL instead of immedate");
+static int alloc_ird(struct c4iw_dev *dev, u32 ird)
+{
+ int ret = 0;
+
+ spin_lock_irq(&dev->lock);
+ if (ird <= dev->avail_ird)
+ dev->avail_ird -= ird;
+ else
+ ret = -ENOMEM;
+ spin_unlock_irq(&dev->lock);
+
+ if (ret)
+ dev_warn(&dev->rdev.lldi.pdev->dev,
+ "device IRD resources exhausted\n");
+
+ return ret;
+}
+
+static void free_ird(struct c4iw_dev *dev, int ird)
+{
+ spin_lock_irq(&dev->lock);
+ dev->avail_ird += ird;
+ spin_unlock_irq(&dev->lock);
+}
+
static void set_state(struct c4iw_qp *qhp, enum c4iw_qp_state state)
{
unsigned long flag;
@@ -1204,12 +1229,20 @@ static int rdma_init(struct c4iw_dev *rhp, struct c4iw_qp *qhp)
int ret;
struct sk_buff *skb;
- PDBG("%s qhp %p qid 0x%x tid %u\n", __func__, qhp, qhp->wq.sq.qid,
- qhp->ep->hwtid);
+ PDBG("%s qhp %p qid 0x%x tid %u ird %u ord %u\n", __func__, qhp,
+ qhp->wq.sq.qid, qhp->ep->hwtid, qhp->ep->ird, qhp->ep->ord);
skb = alloc_skb(sizeof *wqe, GFP_KERNEL);
- if (!skb)
- return -ENOMEM;
+ if (!skb) {
+ ret = -ENOMEM;
+ goto out;
+ }
+ ret = alloc_ird(rhp, qhp->attr.max_ird);
+ if (ret) {
+ qhp->attr.max_ird = 0;
+ kfree_skb(skb);
+ goto out;
+ }
set_wr_txq(skb, CPL_PRIORITY_DATA, qhp->ep->txq_idx);
wqe = (struct fw_ri_wr *)__skb_put(skb, sizeof(*wqe));
@@ -1260,10 +1293,14 @@ static int rdma_init(struct c4iw_dev *rhp, struct c4iw_qp *qhp)
ret = c4iw_ofld_send(&rhp->rdev, skb);
if (ret)
- goto out;
+ goto err1;
ret = c4iw_wait_for_reply(&rhp->rdev, &qhp->ep->com.wr_wait,
qhp->ep->hwtid, qhp->wq.sq.qid, __func__);
+ if (!ret)
+ goto out;
+err1:
+ free_ird(rhp, qhp->attr.max_ird);
out:
PDBG("%s ret %d\n", __func__, ret);
return ret;
@@ -1308,7 +1345,7 @@ int c4iw_modify_qp(struct c4iw_dev *rhp, struct c4iw_qp *qhp,
newattr.max_ord = attrs->max_ord;
}
if (mask & C4IW_QP_ATTR_MAX_IRD) {
- if (attrs->max_ird > c4iw_max_read_depth) {
+ if (attrs->max_ird > cur_max_read_depth(rhp)) {
ret = -EINVAL;
goto out;
}
@@ -1531,6 +1568,7 @@ int c4iw_destroy_qp(struct ib_qp *ib_qp)
if (!list_empty(&qhp->db_fc_entry))
list_del_init(&qhp->db_fc_entry);
spin_unlock_irq(&rhp->lock);
+ free_ird(rhp, qhp->attr.max_ird);
ucontext = ib_qp->uobject ?
to_c4iw_ucontext(ib_qp->uobject->context) : NULL;
@@ -1621,8 +1659,8 @@ struct ib_qp *c4iw_create_qp(struct ib_pd *pd, struct ib_qp_init_attr *attrs,
qhp->attr.enable_rdma_read = 1;
qhp->attr.enable_rdma_write = 1;
qhp->attr.enable_bind = 1;
- qhp->attr.max_ord = 1;
- qhp->attr.max_ird = 1;
+ qhp->attr.max_ord = 0;
+ qhp->attr.max_ird = 0;
qhp->sq_sig_all = attrs->sq_sig_type == IB_SIGNAL_ALL_WR;
spin_lock_init(&qhp->lock);
mutex_init(&qhp->mutex);
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
index f338a7fcebf7..46156210df34 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
@@ -310,6 +310,9 @@ struct adapter_params {
unsigned int ofldq_wr_cred;
bool ulptx_memwrite_dsgl; /* use of T5 DSGL allowed */
+
+ unsigned int max_ordird_qp; /* Max read depth per RDMA QP */
+ unsigned int max_ird_adapter; /* Max read depth per adapter */
};
#include "t4fw_api.h"
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
index a7ce996630ed..767cbbaa3d1e 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
@@ -4113,6 +4113,8 @@ static void uld_attach(struct adapter *adap, unsigned int uld)
lli.sge_egrstatuspagesize = adap->sge.stat_len;
lli.sge_pktshift = adap->sge.pktshift;
lli.enable_fw_ofld_conn = adap->flags & FW_OFLD_CONN;
+ lli.max_ordird_qp = adap->params.max_ordird_qp;
+ lli.max_ird_adapter = adap->params.max_ird_adapter;
lli.ulptx_memwrite_dsgl = adap->params.ulptx_memwrite_dsgl;
handle = ulds[uld].add(&lli);
@@ -5877,6 +5879,22 @@ static int adap_init0(struct adapter *adap)
adap->vres.cq.size = val[3] - val[2] + 1;
adap->vres.ocq.start = val[4];
adap->vres.ocq.size = val[5] - val[4] + 1;
+
+ params[0] = FW_PARAM_DEV(MAXORDIRD_QP);
+ params[1] = FW_PARAM_DEV(MAXIRD_ADAPTER);
+ ret = t4_query_params(adap, 0, 0, 0, 2, params, val);
+ if (ret < 0) {
+ adap->params.max_ordird_qp = 8;
+ adap->params.max_ird_adapter = 32 * adap->tids.ntids;
+ ret = 0;
+ } else {
+ adap->params.max_ordird_qp = val[0];
+ adap->params.max_ird_adapter = val[1];
+ }
+ dev_info(adap->pdev_dev,
+ "max_ordird_qp %d max_ird_adapter %d\n",
+ adap->params.max_ordird_qp,
+ adap->params.max_ird_adapter);
}
if (caps_cmd.iscsicaps) {
params[0] = FW_PARAM_PFVF(ISCSI_START);
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h
index 962458f5d5b3..df1d9446768a 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h
@@ -258,6 +258,8 @@ struct cxgb4_lld_info {
unsigned int pf; /* Physical Function we're using */
bool enable_fw_ofld_conn; /* Enable connection through fw */
/* WR */
+ unsigned int max_ordird_qp; /* Max ORD/IRD depth per RDMA QP */
+ unsigned int max_ird_adapter; /* Max IRD memory per adapter */
bool ulptx_memwrite_dsgl; /* use of T5 DSGL allowed */
};
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h b/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h
index 4a6ae4db7397..ff709e3b3e7e 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h
@@ -934,6 +934,8 @@ enum fw_params_param_dev {
FW_PARAMS_PARAM_DEV_FWREV = 0x0B,
FW_PARAMS_PARAM_DEV_TPREV = 0x0C,
FW_PARAMS_PARAM_DEV_CF = 0x0D,
+ FW_PARAMS_PARAM_DEV_MAXORDIRD_QP = 0x13, /* max supported QP IRD/ORD */
+ FW_PARAMS_PARAM_DEV_MAXIRD_ADAPTER = 0x14, /* max supported adap IRD */
FW_PARAMS_PARAM_DEV_ULPTX_MEMWRITE_DSGL = 0x17,
};
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-14 11:14:00 +0100