RDMA/ionic: Register device ops for miscellaneous functionality (2075bbe8) · Commits · git / linux-net

drivers/infiniband/hw/ionic/ionic_ibdev.c

+200 −0

Original line number	Diff line number	Diff line
		@@ -3,7 +3,11 @@

		#include <linux/module.h>
		#include <linux/printk.h>
		#include <linux/pci.h>
		#include <linux/irq.h>
		#include <net/addrconf.h>
		#include <rdma/ib_addr.h>
		#include <rdma/ib_mad.h>

		#include "ionic_ibdev.h"

		@@ -15,6 +19,192 @@ MODULE_DESCRIPTION(DRIVER_DESCRIPTION);
		MODULE_LICENSE("GPL");
		MODULE_IMPORT_NS("NET_IONIC");

		static int ionic_query_device(struct ib_device *ibdev,
		struct ib_device_attr *attr,
		struct ib_udata *udata)
		{
		struct ionic_ibdev *dev = to_ionic_ibdev(ibdev);
		struct net_device *ndev;

		ndev = ib_device_get_netdev(ibdev, 1);
		addrconf_ifid_eui48((u8 *)&attr->sys_image_guid, ndev);
		dev_put(ndev);
		attr->max_mr_size = dev->lif_cfg.npts_per_lif * PAGE_SIZE / 2;
		attr->page_size_cap = dev->lif_cfg.page_size_supported;

		attr->vendor_id = to_pci_dev(dev->lif_cfg.hwdev)->vendor;
		attr->vendor_part_id = to_pci_dev(dev->lif_cfg.hwdev)->device;

		attr->hw_ver = ionic_lif_asic_rev(dev->lif_cfg.lif);
		attr->fw_ver = 0;
		attr->max_qp = dev->lif_cfg.qp_count;
		attr->max_qp_wr = IONIC_MAX_DEPTH;
		attr->device_cap_flags =
		IB_DEVICE_MEM_WINDOW \|
		IB_DEVICE_MEM_MGT_EXTENSIONS \|
		IB_DEVICE_MEM_WINDOW_TYPE_2B \|
		0;
		attr->max_send_sge =
		min(ionic_v1_send_wqe_max_sge(dev->lif_cfg.max_stride, 0, false),
		IONIC_SPEC_HIGH);
		attr->max_recv_sge =
		min(ionic_v1_recv_wqe_max_sge(dev->lif_cfg.max_stride, 0, false),
		IONIC_SPEC_HIGH);
		attr->max_sge_rd = attr->max_send_sge;
		attr->max_cq = dev->lif_cfg.cq_count / dev->lif_cfg.udma_count;
		attr->max_cqe = IONIC_MAX_CQ_DEPTH - IONIC_CQ_GRACE;
		attr->max_mr = dev->lif_cfg.nmrs_per_lif;
		attr->max_pd = IONIC_MAX_PD;
		attr->max_qp_rd_atom = IONIC_MAX_RD_ATOM;
		attr->max_ee_rd_atom = 0;
		attr->max_res_rd_atom = IONIC_MAX_RD_ATOM;
		attr->max_qp_init_rd_atom = IONIC_MAX_RD_ATOM;
		attr->max_ee_init_rd_atom = 0;
		attr->atomic_cap = IB_ATOMIC_GLOB;
		attr->masked_atomic_cap = IB_ATOMIC_GLOB;
		attr->max_mw = dev->lif_cfg.nmrs_per_lif;
		attr->max_mcast_grp = 0;
		attr->max_mcast_qp_attach = 0;
		attr->max_ah = dev->lif_cfg.nahs_per_lif;
		attr->max_fast_reg_page_list_len = dev->lif_cfg.npts_per_lif / 2;
		attr->max_pkeys = IONIC_PKEY_TBL_LEN;

		return 0;
		}

		static int ionic_query_port(struct ib_device *ibdev, u32 port,
		struct ib_port_attr *attr)
		{
		struct net_device *ndev;

		if (port != 1)
		return -EINVAL;

		ndev = ib_device_get_netdev(ibdev, port);

		if (netif_running(ndev) && netif_carrier_ok(ndev)) {
		attr->state = IB_PORT_ACTIVE;
		attr->phys_state = IB_PORT_PHYS_STATE_LINK_UP;
		} else if (netif_running(ndev)) {
		attr->state = IB_PORT_DOWN;
		attr->phys_state = IB_PORT_PHYS_STATE_POLLING;
		} else {
		attr->state = IB_PORT_DOWN;
		attr->phys_state = IB_PORT_PHYS_STATE_DISABLED;
		}

		attr->max_mtu = iboe_get_mtu(ndev->max_mtu);
		attr->active_mtu = min(attr->max_mtu, iboe_get_mtu(ndev->mtu));
		attr->gid_tbl_len = IONIC_GID_TBL_LEN;
		attr->ip_gids = true;
		attr->port_cap_flags = 0;
		attr->max_msg_sz = 0x80000000;
		attr->pkey_tbl_len = IONIC_PKEY_TBL_LEN;
		attr->max_vl_num = 1;
		attr->subnet_prefix = 0xfe80000000000000ull;

		dev_put(ndev);

		return ib_get_eth_speed(ibdev, port,
		&attr->active_speed,
		&attr->active_width);
		}

		static enum rdma_link_layer ionic_get_link_layer(struct ib_device *ibdev,
		u32 port)
		{
		return IB_LINK_LAYER_ETHERNET;
		}

		static int ionic_query_pkey(struct ib_device *ibdev, u32 port, u16 index,
		u16 *pkey)
		{
		if (port != 1)
		return -EINVAL;

		if (index != 0)
		return -EINVAL;

		*pkey = IB_DEFAULT_PKEY_FULL;

		return 0;
		}

		static int ionic_modify_device(struct ib_device *ibdev, int mask,
		struct ib_device_modify *attr)
		{
		struct ionic_ibdev *dev = to_ionic_ibdev(ibdev);

		if (mask & ~IB_DEVICE_MODIFY_NODE_DESC)
		return -EOPNOTSUPP;

		if (mask & IB_DEVICE_MODIFY_NODE_DESC)
		memcpy(dev->ibdev.node_desc, attr->node_desc,
		IB_DEVICE_NODE_DESC_MAX);

		return 0;
		}

		static int ionic_get_port_immutable(struct ib_device *ibdev, u32 port,
		struct ib_port_immutable *attr)
		{
		if (port != 1)
		return -EINVAL;

		attr->core_cap_flags = RDMA_CORE_PORT_IBA_ROCE_UDP_ENCAP;

		attr->pkey_tbl_len = IONIC_PKEY_TBL_LEN;
		attr->gid_tbl_len = IONIC_GID_TBL_LEN;
		attr->max_mad_size = IB_MGMT_MAD_SIZE;

		return 0;
		}

		static void ionic_get_dev_fw_str(struct ib_device ibdev, char str)
		{
		struct ionic_ibdev *dev = to_ionic_ibdev(ibdev);

		ionic_lif_fw_version(dev->lif_cfg.lif, str, IB_FW_VERSION_NAME_MAX);
		}

		static ssize_t hw_rev_show(struct device device, struct device_attribute attr,
		char *buf)
		{
		struct ionic_ibdev *dev =
		rdma_device_to_drv_device(device, struct ionic_ibdev, ibdev);

		return sysfs_emit(buf, "0x%x\n", ionic_lif_asic_rev(dev->lif_cfg.lif));
		}
		static DEVICE_ATTR_RO(hw_rev);

		static ssize_t hca_type_show(struct device *device,
		struct device_attribute attr, char buf)
		{
		struct ionic_ibdev *dev =
		rdma_device_to_drv_device(device, struct ionic_ibdev, ibdev);

		return sysfs_emit(buf, "%s\n", dev->ibdev.node_desc);
		}
		static DEVICE_ATTR_RO(hca_type);

		static struct attribute *ionic_rdma_attributes[] = {
		&dev_attr_hw_rev.attr,
		&dev_attr_hca_type.attr,
		NULL
		};

		static const struct attribute_group ionic_rdma_attr_group = {
		.attrs = ionic_rdma_attributes,
		};

		static void ionic_disassociate_ucontext(struct ib_ucontext *ibcontext)
		{
		/*
		* Dummy define disassociate_ucontext so that it does not
		* wait for user context before cleaning up hw resources.
		*/
		}

		static const struct ib_device_ops ionic_dev_ops = {
		.owner = THIS_MODULE,
		.driver_id = RDMA_DRIVER_IONIC,
		@@ -50,6 +240,16 @@ static const struct ib_device_ops ionic_dev_ops = {
		.poll_cq = ionic_poll_cq,
		.req_notify_cq = ionic_req_notify_cq,

		.query_device = ionic_query_device,
		.query_port = ionic_query_port,
		.get_link_layer = ionic_get_link_layer,
		.query_pkey = ionic_query_pkey,
		.modify_device = ionic_modify_device,
		.get_port_immutable = ionic_get_port_immutable,
		.get_dev_fw_str = ionic_get_dev_fw_str,
		.device_group = &ionic_rdma_attr_group,
		.disassociate_ucontext = ionic_disassociate_ucontext,

		INIT_RDMA_OBJ_SIZE(ib_ucontext, ionic_ctx, ibctx),
		INIT_RDMA_OBJ_SIZE(ib_pd, ionic_pd, ibpd),
		INIT_RDMA_OBJ_SIZE(ib_ah, ionic_ah, ibah),

drivers/infiniband/hw/ionic/ionic_ibdev.h

+5 −0

Original line number	Diff line number	Diff line
		@@ -26,6 +26,11 @@
		#define IONIC_AQ_COUNT 4
		#define IONIC_EQ_ISR_BUDGET 10
		#define IONIC_EQ_WORK_BUDGET 1000
		#define IONIC_MAX_RD_ATOM 16
		#define IONIC_PKEY_TBL_LEN 1
		#define IONIC_GID_TBL_LEN 256

		#define IONIC_SPEC_HIGH 8
		#define IONIC_MAX_PD 1024
		#define IONIC_SPEC_HIGH 8
		#define IONIC_SQCMB_ORDER 5

drivers/infiniband/hw/ionic/ionic_lif_cfg.c

+10 −0

Original line number	Diff line number	Diff line
		@@ -99,3 +99,13 @@ struct net_device ionic_lif_netdev(struct ionic_lif lif)
		dev_hold(netdev);
		return netdev;
		}

		void ionic_lif_fw_version(struct ionic_lif lif, char str, size_t len)
		{
		strscpy(str, lif->ionic->idev.dev_info.fw_version, len);
		}

		u8 ionic_lif_asic_rev(struct ionic_lif *lif)
		{
		return lif->ionic->idev.dev_info.asic_rev;
		}

drivers/infiniband/hw/ionic/ionic_lif_cfg.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -60,5 +60,7 @@ struct ionic_lif_cfg {

		void ionic_fill_lif_cfg(struct ionic_lif lif, struct ionic_lif_cfg cfg);
		struct net_device ionic_lif_netdev(struct ionic_lif lif);
		void ionic_lif_fw_version(struct ionic_lif lif, char str, size_t len);
		u8 ionic_lif_asic_rev(struct ionic_lif *lif);

		#endif /* _IONIC_LIF_CFG_H_ */