summaryrefslogtreecommitdiff
path: root/drivers/infiniband/hw/cxgb3/iwch_provider.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/infiniband/hw/cxgb3/iwch_provider.c')
-rw-r--r--drivers/infiniband/hw/cxgb3/iwch_provider.c199
1 files changed, 190 insertions, 9 deletions
diff --git a/drivers/infiniband/hw/cxgb3/iwch_provider.c b/drivers/infiniband/hw/cxgb3/iwch_provider.c
index 95f82cfb6c54..b89640aa6e10 100644
--- a/drivers/infiniband/hw/cxgb3/iwch_provider.c
+++ b/drivers/infiniband/hw/cxgb3/iwch_provider.c
@@ -56,6 +56,7 @@
#include "iwch_provider.h"
#include "iwch_cm.h"
#include "iwch_user.h"
+#include "common.h"
static int iwch_modify_port(struct ib_device *ibdev,
u8 port, int port_modify_mask,
@@ -747,6 +748,7 @@ static struct ib_mw *iwch_alloc_mw(struct ib_pd *pd)
mhp->attr.type = TPT_MW;
mhp->attr.stag = stag;
mmid = (stag) >> 8;
+ mhp->ibmw.rkey = stag;
insert_handle(rhp, &rhp->mmidr, mhp, mmid);
PDBG("%s mmid 0x%x mhp %p stag 0x%x\n", __func__, mmid, mhp, stag);
return &(mhp->ibmw);
@@ -768,6 +770,68 @@ static int iwch_dealloc_mw(struct ib_mw *mw)
return 0;
}
+static struct ib_mr *iwch_alloc_fast_reg_mr(struct ib_pd *pd, int pbl_depth)
+{
+ struct iwch_dev *rhp;
+ struct iwch_pd *php;
+ struct iwch_mr *mhp;
+ u32 mmid;
+ u32 stag = 0;
+ int ret;
+
+ php = to_iwch_pd(pd);
+ rhp = php->rhp;
+ mhp = kzalloc(sizeof(*mhp), GFP_KERNEL);
+ if (!mhp)
+ return ERR_PTR(-ENOMEM);
+
+ mhp->rhp = rhp;
+ ret = iwch_alloc_pbl(mhp, pbl_depth);
+ if (ret) {
+ kfree(mhp);
+ return ERR_PTR(ret);
+ }
+ mhp->attr.pbl_size = pbl_depth;
+ ret = cxio_allocate_stag(&rhp->rdev, &stag, php->pdid,
+ mhp->attr.pbl_size, mhp->attr.pbl_addr);
+ if (ret) {
+ iwch_free_pbl(mhp);
+ kfree(mhp);
+ return ERR_PTR(ret);
+ }
+ mhp->attr.pdid = php->pdid;
+ mhp->attr.type = TPT_NON_SHARED_MR;
+ mhp->attr.stag = stag;
+ mhp->attr.state = 1;
+ mmid = (stag) >> 8;
+ mhp->ibmr.rkey = mhp->ibmr.lkey = stag;
+ insert_handle(rhp, &rhp->mmidr, mhp, mmid);
+ PDBG("%s mmid 0x%x mhp %p stag 0x%x\n", __func__, mmid, mhp, stag);
+ return &(mhp->ibmr);
+}
+
+static struct ib_fast_reg_page_list *iwch_alloc_fastreg_pbl(
+ struct ib_device *device,
+ int page_list_len)
+{
+ struct ib_fast_reg_page_list *page_list;
+
+ page_list = kmalloc(sizeof *page_list + page_list_len * sizeof(u64),
+ GFP_KERNEL);
+ if (!page_list)
+ return ERR_PTR(-ENOMEM);
+
+ page_list->page_list = (u64 *)(page_list + 1);
+ page_list->max_page_list_len = page_list_len;
+
+ return page_list;
+}
+
+static void iwch_free_fastreg_pbl(struct ib_fast_reg_page_list *page_list)
+{
+ kfree(page_list);
+}
+
static int iwch_destroy_qp(struct ib_qp *ib_qp)
{
struct iwch_dev *rhp;
@@ -843,6 +907,15 @@ static struct ib_qp *iwch_create_qp(struct ib_pd *pd,
*/
sqsize = roundup_pow_of_two(attrs->cap.max_send_wr);
wqsize = roundup_pow_of_two(rqsize + sqsize);
+
+ /*
+ * Kernel users need more wq space for fastreg WRs which can take
+ * 2 WR fragments.
+ */
+ ucontext = pd->uobject ? to_iwch_ucontext(pd->uobject->context) : NULL;
+ if (!ucontext && wqsize < (rqsize + (2 * sqsize)))
+ wqsize = roundup_pow_of_two(rqsize +
+ roundup_pow_of_two(attrs->cap.max_send_wr * 2));
PDBG("%s wqsize %d sqsize %d rqsize %d\n", __func__,
wqsize, sqsize, rqsize);
qhp = kzalloc(sizeof(*qhp), GFP_KERNEL);
@@ -851,7 +924,6 @@ static struct ib_qp *iwch_create_qp(struct ib_pd *pd,
qhp->wq.size_log2 = ilog2(wqsize);
qhp->wq.rq_size_log2 = ilog2(rqsize);
qhp->wq.sq_size_log2 = ilog2(sqsize);
- ucontext = pd->uobject ? to_iwch_ucontext(pd->uobject->context) : NULL;
if (cxio_create_qp(&rhp->rdev, !udata, &qhp->wq,
ucontext ? &ucontext->uctx : &rhp->rdev.uctx)) {
kfree(qhp);
@@ -935,10 +1007,10 @@ static struct ib_qp *iwch_create_qp(struct ib_pd *pd,
qhp->ibqp.qp_num = qhp->wq.qpid;
init_timer(&(qhp->timer));
PDBG("%s sq_num_entries %d, rq_num_entries %d "
- "qpid 0x%0x qhp %p dma_addr 0x%llx size %d\n",
+ "qpid 0x%0x qhp %p dma_addr 0x%llx size %d rq_addr 0x%x\n",
__func__, qhp->attr.sq_num_entries, qhp->attr.rq_num_entries,
qhp->wq.qpid, qhp, (unsigned long long) qhp->wq.dma_addr,
- 1 << qhp->wq.size_log2);
+ 1 << qhp->wq.size_log2, qhp->wq.rq_addr);
return &qhp->ibqp;
}
@@ -1023,6 +1095,29 @@ static int iwch_query_gid(struct ib_device *ibdev, u8 port,
return 0;
}
+static u64 fw_vers_string_to_u64(struct iwch_dev *iwch_dev)
+{
+ struct ethtool_drvinfo info;
+ struct net_device *lldev = iwch_dev->rdev.t3cdev_p->lldev;
+ char *cp, *next;
+ unsigned fw_maj, fw_min, fw_mic;
+
+ rtnl_lock();
+ lldev->ethtool_ops->get_drvinfo(lldev, &info);
+ rtnl_unlock();
+
+ next = info.fw_version + 1;
+ cp = strsep(&next, ".");
+ sscanf(cp, "%i", &fw_maj);
+ cp = strsep(&next, ".");
+ sscanf(cp, "%i", &fw_min);
+ cp = strsep(&next, ".");
+ sscanf(cp, "%i", &fw_mic);
+
+ return (((u64)fw_maj & 0xffff) << 32) | ((fw_min & 0xffff) << 16) |
+ (fw_mic & 0xffff);
+}
+
static int iwch_query_device(struct ib_device *ibdev,
struct ib_device_attr *props)
{
@@ -1033,7 +1128,10 @@ static int iwch_query_device(struct ib_device *ibdev,
dev = to_iwch_dev(ibdev);
memset(props, 0, sizeof *props);
memcpy(&props->sys_image_guid, dev->rdev.t3cdev_p->lldev->dev_addr, 6);
+ props->hw_ver = dev->rdev.t3cdev_p->type;
+ props->fw_ver = fw_vers_string_to_u64(dev);
props->device_cap_flags = dev->device_cap_flags;
+ props->page_size_cap = dev->attr.mem_pgsizes_bitmask;
props->vendor_id = (u32)dev->rdev.rnic_info.pdev->vendor;
props->vendor_part_id = (u32)dev->rdev.rnic_info.pdev->device;
props->max_mr_size = dev->attr.max_mr_size;
@@ -1048,6 +1146,7 @@ static int iwch_query_device(struct ib_device *ibdev,
props->max_mr = dev->attr.max_mem_regs;
props->max_pd = dev->attr.max_pds;
props->local_ca_ack_delay = 0;
+ props->max_fast_reg_page_list_len = T3_MAX_FASTREG_DEPTH;
return 0;
}
@@ -1088,6 +1187,28 @@ static ssize_t show_rev(struct device *dev, struct device_attribute *attr,
return sprintf(buf, "%d\n", iwch_dev->rdev.t3cdev_p->type);
}
+static int fw_supports_fastreg(struct iwch_dev *iwch_dev)
+{
+ struct ethtool_drvinfo info;
+ struct net_device *lldev = iwch_dev->rdev.t3cdev_p->lldev;
+ char *cp, *next;
+ unsigned fw_maj, fw_min;
+
+ rtnl_lock();
+ lldev->ethtool_ops->get_drvinfo(lldev, &info);
+ rtnl_unlock();
+
+ next = info.fw_version+1;
+ cp = strsep(&next, ".");
+ sscanf(cp, "%i", &fw_maj);
+ cp = strsep(&next, ".");
+ sscanf(cp, "%i", &fw_min);
+
+ PDBG("%s maj %u min %u\n", __func__, fw_maj, fw_min);
+
+ return fw_maj > 6 || (fw_maj == 6 && fw_min > 0);
+}
+
static ssize_t show_fw_ver(struct device *dev, struct device_attribute *attr, char *buf)
{
struct iwch_dev *iwch_dev = container_of(dev, struct iwch_dev,
@@ -1127,6 +1248,61 @@ static ssize_t show_board(struct device *dev, struct device_attribute *attr,
iwch_dev->rdev.rnic_info.pdev->device);
}
+static int iwch_get_mib(struct ib_device *ibdev,
+ union rdma_protocol_stats *stats)
+{
+ struct iwch_dev *dev;
+ struct tp_mib_stats m;
+ int ret;
+
+ PDBG("%s ibdev %p\n", __func__, ibdev);
+ dev = to_iwch_dev(ibdev);
+ ret = dev->rdev.t3cdev_p->ctl(dev->rdev.t3cdev_p, RDMA_GET_MIB, &m);
+ if (ret)
+ return -ENOSYS;
+
+ memset(stats, 0, sizeof *stats);
+ stats->iw.ipInReceives = ((u64) m.ipInReceive_hi << 32) +
+ m.ipInReceive_lo;
+ stats->iw.ipInHdrErrors = ((u64) m.ipInHdrErrors_hi << 32) +
+ m.ipInHdrErrors_lo;
+ stats->iw.ipInAddrErrors = ((u64) m.ipInAddrErrors_hi << 32) +
+ m.ipInAddrErrors_lo;
+ stats->iw.ipInUnknownProtos = ((u64) m.ipInUnknownProtos_hi << 32) +
+ m.ipInUnknownProtos_lo;
+ stats->iw.ipInDiscards = ((u64) m.ipInDiscards_hi << 32) +
+ m.ipInDiscards_lo;
+ stats->iw.ipInDelivers = ((u64) m.ipInDelivers_hi << 32) +
+ m.ipInDelivers_lo;
+ stats->iw.ipOutRequests = ((u64) m.ipOutRequests_hi << 32) +
+ m.ipOutRequests_lo;
+ stats->iw.ipOutDiscards = ((u64) m.ipOutDiscards_hi << 32) +
+ m.ipOutDiscards_lo;
+ stats->iw.ipOutNoRoutes = ((u64) m.ipOutNoRoutes_hi << 32) +
+ m.ipOutNoRoutes_lo;
+ stats->iw.ipReasmTimeout = (u64) m.ipReasmTimeout;
+ stats->iw.ipReasmReqds = (u64) m.ipReasmReqds;
+ stats->iw.ipReasmOKs = (u64) m.ipReasmOKs;
+ stats->iw.ipReasmFails = (u64) m.ipReasmFails;
+ stats->iw.tcpActiveOpens = (u64) m.tcpActiveOpens;
+ stats->iw.tcpPassiveOpens = (u64) m.tcpPassiveOpens;
+ stats->iw.tcpAttemptFails = (u64) m.tcpAttemptFails;
+ stats->iw.tcpEstabResets = (u64) m.tcpEstabResets;
+ stats->iw.tcpOutRsts = (u64) m.tcpOutRsts;
+ stats->iw.tcpCurrEstab = (u64) m.tcpCurrEstab;
+ stats->iw.tcpInSegs = ((u64) m.tcpInSegs_hi << 32) +
+ m.tcpInSegs_lo;
+ stats->iw.tcpOutSegs = ((u64) m.tcpOutSegs_hi << 32) +
+ m.tcpOutSegs_lo;
+ stats->iw.tcpRetransSegs = ((u64) m.tcpRetransSeg_hi << 32) +
+ m.tcpRetransSeg_lo;
+ stats->iw.tcpInErrs = ((u64) m.tcpInErrs_hi << 32) +
+ m.tcpInErrs_lo;
+ stats->iw.tcpRtoMin = (u64) m.tcpRtoMin;
+ stats->iw.tcpRtoMax = (u64) m.tcpRtoMax;
+ return 0;
+}
+
static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL);
static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL);
static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL);
@@ -1136,7 +1312,7 @@ static struct device_attribute *iwch_class_attributes[] = {
&dev_attr_hw_rev,
&dev_attr_fw_ver,
&dev_attr_hca_type,
- &dev_attr_board_id
+ &dev_attr_board_id,
};
int iwch_register_device(struct iwch_dev *dev)
@@ -1149,8 +1325,12 @@ int iwch_register_device(struct iwch_dev *dev)
memset(&dev->ibdev.node_guid, 0, sizeof(dev->ibdev.node_guid));
memcpy(&dev->ibdev.node_guid, dev->rdev.t3cdev_p->lldev->dev_addr, 6);
dev->ibdev.owner = THIS_MODULE;
- dev->device_cap_flags =
- (IB_DEVICE_ZERO_STAG | IB_DEVICE_MEM_WINDOW);
+ dev->device_cap_flags = IB_DEVICE_LOCAL_DMA_LKEY | IB_DEVICE_MEM_WINDOW;
+
+ /* cxgb3 supports STag 0. */
+ dev->ibdev.local_dma_lkey = 0;
+ if (fw_supports_fastreg(dev))
+ dev->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS;
dev->ibdev.uverbs_cmd_mask =
(1ull << IB_USER_VERBS_CMD_GET_CONTEXT) |
@@ -1202,15 +1382,16 @@ int iwch_register_device(struct iwch_dev *dev)
dev->ibdev.alloc_mw = iwch_alloc_mw;
dev->ibdev.bind_mw = iwch_bind_mw;
dev->ibdev.dealloc_mw = iwch_dealloc_mw;
-
+ dev->ibdev.alloc_fast_reg_mr = iwch_alloc_fast_reg_mr;
+ dev->ibdev.alloc_fast_reg_page_list = iwch_alloc_fastreg_pbl;
+ dev->ibdev.free_fast_reg_page_list = iwch_free_fastreg_pbl;
dev->ibdev.attach_mcast = iwch_multicast_attach;
dev->ibdev.detach_mcast = iwch_multicast_detach;
dev->ibdev.process_mad = iwch_process_mad;
-
dev->ibdev.req_notify_cq = iwch_arm_cq;
dev->ibdev.post_send = iwch_post_send;
dev->ibdev.post_recv = iwch_post_receive;
-
+ dev->ibdev.get_protocol_stats = iwch_get_mib;
dev->ibdev.iwcm = kmalloc(sizeof(struct iw_cm_verbs), GFP_KERNEL);
if (!dev->ibdev.iwcm)