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RDMA/ionic: Register device ops for miscellaneous functionality
Implement idbdev ops for device and port information. Co-developed-by: Andrew Boyer <andrew.boyer@amd.com> Signed-off-by: Andrew Boyer <andrew.boyer@amd.com> Co-developed-by: Allen Hubbe <allen.hubbe@amd.com> Signed-off-by: Allen Hubbe <allen.hubbe@amd.com> Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com> Link: https://patch.msgid.link/20250903061606.4139957-13-abhijit.gangurde@amd.com Signed-off-by: Leon Romanovsky <leon@kernel.org>
This commit is contained in:
Abhijit Gangurde
Leon Romanovsky
parent
b83c62055b
commit
2075bbe8ef
4 changed files with 217 additions and 0 deletions
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@ -3,7 +3,11 @@
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#include <linux/module.h>
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#include <linux/printk.h>
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#include <linux/pci.h>
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#include <linux/irq.h>
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#include <net/addrconf.h>
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#include <rdma/ib_addr.h>
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#include <rdma/ib_mad.h>
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#include "ionic_ibdev.h"
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@ -15,6 +19,192 @@ MODULE_DESCRIPTION(DRIVER_DESCRIPTION);
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MODULE_LICENSE("GPL");
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MODULE_IMPORT_NS("NET_IONIC");
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static int ionic_query_device(struct ib_device *ibdev,
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struct ib_device_attr *attr,
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struct ib_udata *udata)
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{
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struct ionic_ibdev *dev = to_ionic_ibdev(ibdev);
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struct net_device *ndev;
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ndev = ib_device_get_netdev(ibdev, 1);
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addrconf_ifid_eui48((u8 *)&attr->sys_image_guid, ndev);
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dev_put(ndev);
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attr->max_mr_size = dev->lif_cfg.npts_per_lif * PAGE_SIZE / 2;
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attr->page_size_cap = dev->lif_cfg.page_size_supported;
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attr->vendor_id = to_pci_dev(dev->lif_cfg.hwdev)->vendor;
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attr->vendor_part_id = to_pci_dev(dev->lif_cfg.hwdev)->device;
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attr->hw_ver = ionic_lif_asic_rev(dev->lif_cfg.lif);
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attr->fw_ver = 0;
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attr->max_qp = dev->lif_cfg.qp_count;
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attr->max_qp_wr = IONIC_MAX_DEPTH;
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attr->device_cap_flags =
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IB_DEVICE_MEM_WINDOW |
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IB_DEVICE_MEM_MGT_EXTENSIONS |
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IB_DEVICE_MEM_WINDOW_TYPE_2B |
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0;
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attr->max_send_sge =
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min(ionic_v1_send_wqe_max_sge(dev->lif_cfg.max_stride, 0, false),
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IONIC_SPEC_HIGH);
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attr->max_recv_sge =
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min(ionic_v1_recv_wqe_max_sge(dev->lif_cfg.max_stride, 0, false),
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IONIC_SPEC_HIGH);
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attr->max_sge_rd = attr->max_send_sge;
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attr->max_cq = dev->lif_cfg.cq_count / dev->lif_cfg.udma_count;
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attr->max_cqe = IONIC_MAX_CQ_DEPTH - IONIC_CQ_GRACE;
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attr->max_mr = dev->lif_cfg.nmrs_per_lif;
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attr->max_pd = IONIC_MAX_PD;
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attr->max_qp_rd_atom = IONIC_MAX_RD_ATOM;
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attr->max_ee_rd_atom = 0;
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attr->max_res_rd_atom = IONIC_MAX_RD_ATOM;
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attr->max_qp_init_rd_atom = IONIC_MAX_RD_ATOM;
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attr->max_ee_init_rd_atom = 0;
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attr->atomic_cap = IB_ATOMIC_GLOB;
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attr->masked_atomic_cap = IB_ATOMIC_GLOB;
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attr->max_mw = dev->lif_cfg.nmrs_per_lif;
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attr->max_mcast_grp = 0;
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attr->max_mcast_qp_attach = 0;
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attr->max_ah = dev->lif_cfg.nahs_per_lif;
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attr->max_fast_reg_page_list_len = dev->lif_cfg.npts_per_lif / 2;
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attr->max_pkeys = IONIC_PKEY_TBL_LEN;
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return 0;
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}
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static int ionic_query_port(struct ib_device *ibdev, u32 port,
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struct ib_port_attr *attr)
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{
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struct net_device *ndev;
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if (port != 1)
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return -EINVAL;
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ndev = ib_device_get_netdev(ibdev, port);
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if (netif_running(ndev) && netif_carrier_ok(ndev)) {
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attr->state = IB_PORT_ACTIVE;
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attr->phys_state = IB_PORT_PHYS_STATE_LINK_UP;
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} else if (netif_running(ndev)) {
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attr->state = IB_PORT_DOWN;
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attr->phys_state = IB_PORT_PHYS_STATE_POLLING;
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} else {
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attr->state = IB_PORT_DOWN;
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attr->phys_state = IB_PORT_PHYS_STATE_DISABLED;
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}
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attr->max_mtu = iboe_get_mtu(ndev->max_mtu);
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attr->active_mtu = min(attr->max_mtu, iboe_get_mtu(ndev->mtu));
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attr->gid_tbl_len = IONIC_GID_TBL_LEN;
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attr->ip_gids = true;
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attr->port_cap_flags = 0;
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attr->max_msg_sz = 0x80000000;
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attr->pkey_tbl_len = IONIC_PKEY_TBL_LEN;
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attr->max_vl_num = 1;
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attr->subnet_prefix = 0xfe80000000000000ull;
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dev_put(ndev);
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return ib_get_eth_speed(ibdev, port,
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&attr->active_speed,
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&attr->active_width);
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}
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static enum rdma_link_layer ionic_get_link_layer(struct ib_device *ibdev,
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u32 port)
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{
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return IB_LINK_LAYER_ETHERNET;
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}
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static int ionic_query_pkey(struct ib_device *ibdev, u32 port, u16 index,
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u16 *pkey)
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{
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if (port != 1)
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return -EINVAL;
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if (index != 0)
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return -EINVAL;
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*pkey = IB_DEFAULT_PKEY_FULL;
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return 0;
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}
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static int ionic_modify_device(struct ib_device *ibdev, int mask,
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struct ib_device_modify *attr)
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{
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struct ionic_ibdev *dev = to_ionic_ibdev(ibdev);
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if (mask & ~IB_DEVICE_MODIFY_NODE_DESC)
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return -EOPNOTSUPP;
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if (mask & IB_DEVICE_MODIFY_NODE_DESC)
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memcpy(dev->ibdev.node_desc, attr->node_desc,
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IB_DEVICE_NODE_DESC_MAX);
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return 0;
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}
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static int ionic_get_port_immutable(struct ib_device *ibdev, u32 port,
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struct ib_port_immutable *attr)
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{
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if (port != 1)
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return -EINVAL;
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attr->core_cap_flags = RDMA_CORE_PORT_IBA_ROCE_UDP_ENCAP;
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attr->pkey_tbl_len = IONIC_PKEY_TBL_LEN;
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attr->gid_tbl_len = IONIC_GID_TBL_LEN;
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attr->max_mad_size = IB_MGMT_MAD_SIZE;
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return 0;
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}
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static void ionic_get_dev_fw_str(struct ib_device *ibdev, char *str)
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{
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struct ionic_ibdev *dev = to_ionic_ibdev(ibdev);
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ionic_lif_fw_version(dev->lif_cfg.lif, str, IB_FW_VERSION_NAME_MAX);
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}
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static ssize_t hw_rev_show(struct device *device, struct device_attribute *attr,
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char *buf)
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{
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struct ionic_ibdev *dev =
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rdma_device_to_drv_device(device, struct ionic_ibdev, ibdev);
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return sysfs_emit(buf, "0x%x\n", ionic_lif_asic_rev(dev->lif_cfg.lif));
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}
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static DEVICE_ATTR_RO(hw_rev);
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static ssize_t hca_type_show(struct device *device,
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struct device_attribute *attr, char *buf)
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{
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struct ionic_ibdev *dev =
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rdma_device_to_drv_device(device, struct ionic_ibdev, ibdev);
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return sysfs_emit(buf, "%s\n", dev->ibdev.node_desc);
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}
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static DEVICE_ATTR_RO(hca_type);
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static struct attribute *ionic_rdma_attributes[] = {
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&dev_attr_hw_rev.attr,
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&dev_attr_hca_type.attr,
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NULL
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};
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static const struct attribute_group ionic_rdma_attr_group = {
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.attrs = ionic_rdma_attributes,
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};
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static void ionic_disassociate_ucontext(struct ib_ucontext *ibcontext)
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{
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/*
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* Dummy define disassociate_ucontext so that it does not
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* wait for user context before cleaning up hw resources.
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*/
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}
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static const struct ib_device_ops ionic_dev_ops = {
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.owner = THIS_MODULE,
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.driver_id = RDMA_DRIVER_IONIC,
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@ -50,6 +240,16 @@ static const struct ib_device_ops ionic_dev_ops = {
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.poll_cq = ionic_poll_cq,
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.req_notify_cq = ionic_req_notify_cq,
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.query_device = ionic_query_device,
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.query_port = ionic_query_port,
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.get_link_layer = ionic_get_link_layer,
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.query_pkey = ionic_query_pkey,
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.modify_device = ionic_modify_device,
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.get_port_immutable = ionic_get_port_immutable,
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.get_dev_fw_str = ionic_get_dev_fw_str,
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.device_group = &ionic_rdma_attr_group,
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.disassociate_ucontext = ionic_disassociate_ucontext,
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INIT_RDMA_OBJ_SIZE(ib_ucontext, ionic_ctx, ibctx),
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INIT_RDMA_OBJ_SIZE(ib_pd, ionic_pd, ibpd),
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INIT_RDMA_OBJ_SIZE(ib_ah, ionic_ah, ibah),
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@ -26,6 +26,11 @@
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#define IONIC_AQ_COUNT 4
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#define IONIC_EQ_ISR_BUDGET 10
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#define IONIC_EQ_WORK_BUDGET 1000
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#define IONIC_MAX_RD_ATOM 16
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#define IONIC_PKEY_TBL_LEN 1
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#define IONIC_GID_TBL_LEN 256
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#define IONIC_SPEC_HIGH 8
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#define IONIC_MAX_PD 1024
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#define IONIC_SPEC_HIGH 8
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#define IONIC_SQCMB_ORDER 5
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@ -99,3 +99,13 @@ struct net_device *ionic_lif_netdev(struct ionic_lif *lif)
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dev_hold(netdev);
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return netdev;
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}
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void ionic_lif_fw_version(struct ionic_lif *lif, char *str, size_t len)
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{
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strscpy(str, lif->ionic->idev.dev_info.fw_version, len);
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}
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u8 ionic_lif_asic_rev(struct ionic_lif *lif)
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{
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return lif->ionic->idev.dev_info.asic_rev;
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}
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@ -60,5 +60,7 @@ struct ionic_lif_cfg {
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void ionic_fill_lif_cfg(struct ionic_lif *lif, struct ionic_lif_cfg *cfg);
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struct net_device *ionic_lif_netdev(struct ionic_lif *lif);
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void ionic_lif_fw_version(struct ionic_lif *lif, char *str, size_t len);
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u8 ionic_lif_asic_rev(struct ionic_lif *lif);
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#endif /* _IONIC_LIF_CFG_H_ */
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