Instead, use the cached copy of the attributes present on the device.
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
int ipoib_cm_dev_init(struct net_device *dev)
{
struct ipoib_dev_priv *priv = netdev_priv(dev);
- int i, ret;
- struct ib_device_attr attr;
+ int max_srq_sge, i;
INIT_LIST_HEAD(&priv->cm.passive_ids);
INIT_LIST_HEAD(&priv->cm.reap_list);
skb_queue_head_init(&priv->cm.skb_queue);
- ret = ib_query_device(priv->ca, &attr);
- if (ret) {
- printk(KERN_WARNING "ib_query_device() failed with %d\n", ret);
- return ret;
- }
-
- ipoib_dbg(priv, "max_srq_sge=%d\n", attr.max_srq_sge);
+ ipoib_dbg(priv, "max_srq_sge=%d\n", priv->ca->attrs.max_srq_sge);
- attr.max_srq_sge = min_t(int, IPOIB_CM_RX_SG, attr.max_srq_sge);
- ipoib_cm_create_srq(dev, attr.max_srq_sge);
+ max_srq_sge = min_t(int, IPOIB_CM_RX_SG, priv->ca->attrs.max_srq_sge);
+ ipoib_cm_create_srq(dev, max_srq_sge);
if (ipoib_cm_has_srq(dev)) {
- priv->cm.max_cm_mtu = attr.max_srq_sge * PAGE_SIZE - 0x10;
- priv->cm.num_frags = attr.max_srq_sge;
+ priv->cm.max_cm_mtu = max_srq_sge * PAGE_SIZE - 0x10;
+ priv->cm.num_frags = max_srq_sge;
ipoib_dbg(priv, "max_cm_mtu = 0x%x, num_frags=%d\n",
priv->cm.max_cm_mtu, priv->cm.num_frags);
} else {
struct ethtool_drvinfo *drvinfo)
{
struct ipoib_dev_priv *priv = netdev_priv(netdev);
- struct ib_device_attr *attr;
-
- attr = kmalloc(sizeof(*attr), GFP_KERNEL);
- if (attr && !ib_query_device(priv->ca, attr))
- snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
- "%d.%d.%d", (int)(attr->fw_ver >> 32),
- (int)(attr->fw_ver >> 16) & 0xffff,
- (int)attr->fw_ver & 0xffff);
- kfree(attr);
+
+ snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
+ "%d.%d.%d", (int)(priv->ca->attrs.fw_ver >> 32),
+ (int)(priv->ca->attrs.fw_ver >> 16) & 0xffff,
+ (int)priv->ca->attrs.fw_ver & 0xffff);
strlcpy(drvinfo->bus_info, dev_name(priv->ca->dma_device),
sizeof(drvinfo->bus_info));
int ipoib_set_dev_features(struct ipoib_dev_priv *priv, struct ib_device *hca)
{
- struct ib_device_attr *device_attr;
- int result = -ENOMEM;
-
- device_attr = kmalloc(sizeof *device_attr, GFP_KERNEL);
- if (!device_attr) {
- printk(KERN_WARNING "%s: allocation of %zu bytes failed\n",
- hca->name, sizeof *device_attr);
- return result;
- }
-
- result = ib_query_device(hca, device_attr);
- if (result) {
- printk(KERN_WARNING "%s: ib_query_device failed (ret = %d)\n",
- hca->name, result);
- kfree(device_attr);
- return result;
- }
- priv->hca_caps = device_attr->device_cap_flags;
-
- kfree(device_attr);
+ priv->hca_caps = hca->attrs.device_cap_flags;
if (priv->hca_caps & IB_DEVICE_UD_IP_CSUM) {
priv->dev->hw_features = NETIF_F_SG |
ib_conn = &iser_conn->ib_conn;
if (ib_conn->pi_support) {
- u32 sig_caps = ib_conn->device->dev_attr.sig_prot_cap;
+ u32 sig_caps = ib_conn->device->ib_device->attrs.sig_prot_cap;
scsi_host_set_prot(shost, iser_dif_prot_caps(sig_caps));
scsi_host_set_guard(shost, SHOST_DIX_GUARD_IP |
* max fastreg page list length.
*/
shost->sg_tablesize = min_t(unsigned short, shost->sg_tablesize,
- ib_conn->device->dev_attr.max_fast_reg_page_list_len);
+ ib_conn->device->ib_device->attrs.max_fast_reg_page_list_len);
shost->max_sectors = min_t(unsigned int,
1024, (shost->sg_tablesize * PAGE_SIZE) >> 9);
*
* @ib_device: RDMA device
* @pd: Protection Domain for this device
- * @dev_attr: Device attributes container
* @mr: Global DMA memory region
* @event_handler: IB events handle routine
* @ig_list: entry in devices list
struct iser_device {
struct ib_device *ib_device;
struct ib_pd *pd;
- struct ib_device_attr dev_attr;
struct ib_mr *mr;
struct ib_event_handler event_handler;
struct list_head ig_list;
int iser_assign_reg_ops(struct iser_device *device)
{
- struct ib_device_attr *dev_attr = &device->dev_attr;
+ struct ib_device *ib_dev = device->ib_device;
/* Assign function handles - based on FMR support */
- if (device->ib_device->alloc_fmr && device->ib_device->dealloc_fmr &&
- device->ib_device->map_phys_fmr && device->ib_device->unmap_fmr) {
+ if (ib_dev->alloc_fmr && ib_dev->dealloc_fmr &&
+ ib_dev->map_phys_fmr && ib_dev->unmap_fmr) {
iser_info("FMR supported, using FMR for registration\n");
device->reg_ops = &fmr_ops;
- } else
- if (dev_attr->device_cap_flags & IB_DEVICE_MEM_MGT_EXTENSIONS) {
+ } else if (ib_dev->attrs.device_cap_flags & IB_DEVICE_MEM_MGT_EXTENSIONS) {
iser_info("FastReg supported, using FastReg for registration\n");
device->reg_ops = &fastreg_ops;
} else {
*/
static int iser_create_device_ib_res(struct iser_device *device)
{
- struct ib_device_attr *dev_attr = &device->dev_attr;
+ struct ib_device *ib_dev = device->ib_device;
int ret, i, max_cqe;
- ret = ib_query_device(device->ib_device, dev_attr);
- if (ret) {
- pr_warn("Query device failed for %s\n", device->ib_device->name);
- return ret;
- }
-
ret = iser_assign_reg_ops(device);
if (ret)
return ret;
device->comps_used = min_t(int, num_online_cpus(),
- device->ib_device->num_comp_vectors);
+ ib_dev->num_comp_vectors);
device->comps = kcalloc(device->comps_used, sizeof(*device->comps),
GFP_KERNEL);
if (!device->comps)
goto comps_err;
- max_cqe = min(ISER_MAX_CQ_LEN, dev_attr->max_cqe);
+ max_cqe = min(ISER_MAX_CQ_LEN, ib_dev->attrs.max_cqe);
iser_info("using %d CQs, device %s supports %d vectors max_cqe %d\n",
- device->comps_used, device->ib_device->name,
- device->ib_device->num_comp_vectors, max_cqe);
+ device->comps_used, ib_dev->name,
+ ib_dev->num_comp_vectors, max_cqe);
- device->pd = ib_alloc_pd(device->ib_device);
+ device->pd = ib_alloc_pd(ib_dev);
if (IS_ERR(device->pd))
goto pd_err;
comp->device = device;
cq_attr.cqe = max_cqe;
cq_attr.comp_vector = i;
- comp->cq = ib_create_cq(device->ib_device,
+ comp->cq = ib_create_cq(ib_dev,
iser_cq_callback,
iser_cq_event_callback,
(void *)comp,
struct iser_conn *iser_conn = container_of(ib_conn, struct iser_conn,
ib_conn);
struct iser_device *device;
- struct ib_device_attr *dev_attr;
+ struct ib_device *ib_dev;
struct ib_qp_init_attr init_attr;
int ret = -ENOMEM;
int index, min_index = 0;
BUG_ON(ib_conn->device == NULL);
device = ib_conn->device;
- dev_attr = &device->dev_attr;
+ ib_dev = device->ib_device;
memset(&init_attr, 0, sizeof init_attr);
iser_conn->max_cmds =
ISER_GET_MAX_XMIT_CMDS(ISER_QP_SIG_MAX_REQ_DTOS);
} else {
- if (dev_attr->max_qp_wr > ISER_QP_MAX_REQ_DTOS) {
+ if (ib_dev->attrs.max_qp_wr > ISER_QP_MAX_REQ_DTOS) {
init_attr.cap.max_send_wr = ISER_QP_MAX_REQ_DTOS + 1;
iser_conn->max_cmds =
ISER_GET_MAX_XMIT_CMDS(ISER_QP_MAX_REQ_DTOS);
} else {
- init_attr.cap.max_send_wr = dev_attr->max_qp_wr;
+ init_attr.cap.max_send_wr = ib_dev->attrs.max_qp_wr;
iser_conn->max_cmds =
- ISER_GET_MAX_XMIT_CMDS(dev_attr->max_qp_wr);
+ ISER_GET_MAX_XMIT_CMDS(ib_dev->attrs.max_qp_wr);
iser_dbg("device %s supports max_send_wr %d\n",
- device->ib_device->name, dev_attr->max_qp_wr);
+ device->ib_device->name, ib_dev->attrs.max_qp_wr);
}
}
sg_tablesize = DIV_ROUND_UP(max_sectors * 512, SIZE_4K);
sup_sg_tablesize = min_t(unsigned, ISCSI_ISER_MAX_SG_TABLESIZE,
- device->dev_attr.max_fast_reg_page_list_len);
+ device->ib_device->attrs.max_fast_reg_page_list_len);
if (sg_tablesize > sup_sg_tablesize) {
sg_tablesize = sup_sg_tablesize;
/* connection T10-PI support */
if (iser_pi_enable) {
- if (!(device->dev_attr.device_cap_flags &
+ if (!(device->ib_device->attrs.device_cap_flags &
IB_DEVICE_SIGNATURE_HANDOVER)) {
iser_warn("T10-PI requested but not supported on %s, "
"continue without T10-PI\n",
goto failure;
memset(&conn_param, 0, sizeof conn_param);
- conn_param.responder_resources = device->dev_attr.max_qp_rd_atom;
+ conn_param.responder_resources = device->ib_device->attrs.max_qp_rd_atom;
conn_param.initiator_depth = 1;
conn_param.retry_count = 7;
conn_param.rnr_retry_count = 6;
}
}
-static int
-isert_query_device(struct ib_device *ib_dev, struct ib_device_attr *devattr)
-{
- int ret;
-
- ret = ib_query_device(ib_dev, devattr);
- if (ret) {
- isert_err("ib_query_device() failed: %d\n", ret);
- return ret;
- }
- isert_dbg("devattr->max_sge: %d\n", devattr->max_sge);
- isert_dbg("devattr->max_sge_rd: %d\n", devattr->max_sge_rd);
-
- return 0;
-}
-
static struct isert_comp *
isert_comp_get(struct isert_conn *isert_conn)
{
attr.recv_cq = comp->cq;
attr.cap.max_send_wr = ISERT_QP_MAX_REQ_DTOS;
attr.cap.max_recv_wr = ISERT_QP_MAX_RECV_DTOS + 1;
- attr.cap.max_send_sge = device->dev_attr.max_sge;
- isert_conn->max_sge = min(device->dev_attr.max_sge,
- device->dev_attr.max_sge_rd);
+ attr.cap.max_send_sge = device->ib_device->attrs.max_sge;
+ isert_conn->max_sge = min(device->ib_device->attrs.max_sge,
+ device->ib_device->attrs.max_sge_rd);
attr.cap.max_recv_sge = 1;
attr.sq_sig_type = IB_SIGNAL_REQ_WR;
attr.qp_type = IB_QPT_RC;
}
static int
-isert_alloc_comps(struct isert_device *device,
- struct ib_device_attr *attr)
+isert_alloc_comps(struct isert_device *device)
{
int i, max_cqe, ret = 0;
return -ENOMEM;
}
- max_cqe = min(ISER_MAX_CQ_LEN, attr->max_cqe);
+ max_cqe = min(ISER_MAX_CQ_LEN, device->ib_device->attrs.max_cqe);
for (i = 0; i < device->comps_used; i++) {
struct ib_cq_init_attr cq_attr = {};
static int
isert_create_device_ib_res(struct isert_device *device)
{
- struct ib_device_attr *dev_attr;
+ struct ib_device *ib_dev = device->ib_device;
int ret;
- dev_attr = &device->dev_attr;
- ret = isert_query_device(device->ib_device, dev_attr);
- if (ret)
- return ret;
+ isert_dbg("devattr->max_sge: %d\n", ib_dev->attrs.max_sge);
+ isert_dbg("devattr->max_sge_rd: %d\n", ib_dev->attrs.max_sge_rd);
/* asign function handlers */
- if (dev_attr->device_cap_flags & IB_DEVICE_MEM_MGT_EXTENSIONS &&
- dev_attr->device_cap_flags & IB_DEVICE_SIGNATURE_HANDOVER) {
+ if (ib_dev->attrs.device_cap_flags & IB_DEVICE_MEM_MGT_EXTENSIONS &&
+ ib_dev->attrs.device_cap_flags & IB_DEVICE_SIGNATURE_HANDOVER) {
device->use_fastreg = 1;
device->reg_rdma_mem = isert_reg_rdma;
device->unreg_rdma_mem = isert_unreg_rdma;
device->unreg_rdma_mem = isert_unmap_cmd;
}
- ret = isert_alloc_comps(device, dev_attr);
+ ret = isert_alloc_comps(device);
if (ret)
return ret;
- device->pd = ib_alloc_pd(device->ib_device);
+ device->pd = ib_alloc_pd(ib_dev);
if (IS_ERR(device->pd)) {
ret = PTR_ERR(device->pd);
isert_err("failed to allocate pd, device %p, ret=%d\n",
}
/* Check signature cap */
- device->pi_capable = dev_attr->device_cap_flags &
+ device->pi_capable = ib_dev->attrs.device_cap_flags &
IB_DEVICE_SIGNATURE_HANDOVER ? true : false;
return 0;
/* Set max inflight RDMA READ requests */
isert_conn->initiator_depth = min_t(u8,
event->param.conn.initiator_depth,
- device->dev_attr.max_qp_init_rd_atom);
+ device->ib_device->attrs.max_qp_init_rd_atom);
isert_dbg("Using initiator_depth: %u\n", isert_conn->initiator_depth);
ret = isert_conn_setup_qp(isert_conn, cma_id);
struct isert_comp *comps;
int comps_used;
struct list_head dev_node;
- struct ib_device_attr dev_attr;
int (*reg_rdma_mem)(struct iscsi_conn *conn,
struct iscsi_cmd *cmd,
struct isert_rdma_wr *wr);
static void srp_add_one(struct ib_device *device)
{
struct srp_device *srp_dev;
- struct ib_device_attr *dev_attr;
struct srp_host *host;
int mr_page_shift, p;
u64 max_pages_per_mr;
- dev_attr = kmalloc(sizeof *dev_attr, GFP_KERNEL);
- if (!dev_attr)
- return;
-
- if (ib_query_device(device, dev_attr)) {
- pr_warn("Query device failed for %s\n", device->name);
- goto free_attr;
- }
-
srp_dev = kmalloc(sizeof *srp_dev, GFP_KERNEL);
if (!srp_dev)
- goto free_attr;
+ return;
srp_dev->has_fmr = (device->alloc_fmr && device->dealloc_fmr &&
device->map_phys_fmr && device->unmap_fmr);
- srp_dev->has_fr = (dev_attr->device_cap_flags &
+ srp_dev->has_fr = (device->attrs.device_cap_flags &
IB_DEVICE_MEM_MGT_EXTENSIONS);
if (!srp_dev->has_fmr && !srp_dev->has_fr)
dev_warn(&device->dev, "neither FMR nor FR is supported\n");
* minimum of 4096 bytes. We're unlikely to build large sglists
* out of smaller entries.
*/
- mr_page_shift = max(12, ffs(dev_attr->page_size_cap) - 1);
+ mr_page_shift = max(12, ffs(device->attrs.page_size_cap) - 1);
srp_dev->mr_page_size = 1 << mr_page_shift;
srp_dev->mr_page_mask = ~((u64) srp_dev->mr_page_size - 1);
- max_pages_per_mr = dev_attr->max_mr_size;
+ max_pages_per_mr = device->attrs.max_mr_size;
do_div(max_pages_per_mr, srp_dev->mr_page_size);
srp_dev->max_pages_per_mr = min_t(u64, SRP_MAX_PAGES_PER_MR,
max_pages_per_mr);
if (srp_dev->use_fast_reg) {
srp_dev->max_pages_per_mr =
min_t(u32, srp_dev->max_pages_per_mr,
- dev_attr->max_fast_reg_page_list_len);
+ device->attrs.max_fast_reg_page_list_len);
}
srp_dev->mr_max_size = srp_dev->mr_page_size *
srp_dev->max_pages_per_mr;
- pr_debug("%s: mr_page_shift = %d, dev_attr->max_mr_size = %#llx, dev_attr->max_fast_reg_page_list_len = %u, max_pages_per_mr = %d, mr_max_size = %#x\n",
- device->name, mr_page_shift, dev_attr->max_mr_size,
- dev_attr->max_fast_reg_page_list_len,
+ pr_debug("%s: mr_page_shift = %d, device->max_mr_size = %#llx, device->max_fast_reg_page_list_len = %u, max_pages_per_mr = %d, mr_max_size = %#x\n",
+ device->name, mr_page_shift, device->attrs.max_mr_size,
+ device->attrs.max_fast_reg_page_list_len,
srp_dev->max_pages_per_mr, srp_dev->mr_max_size);
INIT_LIST_HEAD(&srp_dev->dev_list);
}
ib_set_client_data(device, &srp_client, srp_dev);
-
- goto free_attr;
+ return;
err_pd:
ib_dealloc_pd(srp_dev->pd);
free_dev:
kfree(srp_dev);
-
-free_attr:
- kfree(dev_attr);
}
static void srp_remove_one(struct ib_device *device, void *client_data)
memset(iocp, 0, sizeof *iocp);
strcpy(iocp->id_string, SRPT_ID_STRING);
iocp->guid = cpu_to_be64(srpt_service_guid);
- iocp->vendor_id = cpu_to_be32(sdev->dev_attr.vendor_id);
- iocp->device_id = cpu_to_be32(sdev->dev_attr.vendor_part_id);
- iocp->device_version = cpu_to_be16(sdev->dev_attr.hw_ver);
- iocp->subsys_vendor_id = cpu_to_be32(sdev->dev_attr.vendor_id);
+ iocp->vendor_id = cpu_to_be32(sdev->device->attrs.vendor_id);
+ iocp->device_id = cpu_to_be32(sdev->device->attrs.vendor_part_id);
+ iocp->device_version = cpu_to_be16(sdev->device->attrs.hw_ver);
+ iocp->subsys_vendor_id = cpu_to_be32(sdev->device->attrs.vendor_id);
iocp->subsys_device_id = 0x0;
iocp->io_class = cpu_to_be16(SRP_REV16A_IB_IO_CLASS);
iocp->io_subclass = cpu_to_be16(SRP_IO_SUBCLASS);
init_waitqueue_head(&sdev->ch_releaseQ);
spin_lock_init(&sdev->spinlock);
- if (ib_query_device(device, &sdev->dev_attr))
- goto free_dev;
-
sdev->pd = ib_alloc_pd(device);
if (IS_ERR(sdev->pd))
goto free_dev;
- sdev->srq_size = min(srpt_srq_size, sdev->dev_attr.max_srq_wr);
+ sdev->srq_size = min(srpt_srq_size, sdev->device->attrs.max_srq_wr);
srq_attr.event_handler = srpt_srq_event;
srq_attr.srq_context = (void *)sdev;
goto err_pd;
pr_debug("%s: create SRQ #wr= %d max_allow=%d dev= %s\n",
- __func__, sdev->srq_size, sdev->dev_attr.max_srq_wr,
+ __func__, sdev->srq_size, sdev->device->attrs.max_srq_wr,
device->name);
if (!srpt_service_guid)
* @mr: L_Key (local key) with write access to all local memory.
* @srq: Per-HCA SRQ (shared receive queue).
* @cm_id: Connection identifier.
- * @dev_attr: Attributes of the InfiniBand device as obtained during the
- * ib_client.add() callback.
* @srq_size: SRQ size.
* @ioctx_ring: Per-HCA SRQ.
* @rch_list: Per-device channel list -- see also srpt_rdma_ch.list.
struct ib_pd *pd;
struct ib_srq *srq;
struct ib_cm_id *cm_id;
- struct ib_device_attr dev_attr;
int srq_size;
struct srpt_recv_ioctx **ioctx_ring;
struct list_head rch_list;
projects / GitHub / MotorolaMobilityLLC / kernel-slsi.git / commitdiff