RDMA/ocrdma: Add driver for Emulex OneConnect IBoE RDMA adapter
Signed-off-by: Parav Pandit <parav.pandit@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
This commit is contained in:
Parav Pandit
Roland Dreier
parent
045508a8a3
commit
fe2caefcdf
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@ -51,6 +51,7 @@ source "drivers/infiniband/hw/cxgb3/Kconfig"
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source "drivers/infiniband/hw/cxgb4/Kconfig"
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source "drivers/infiniband/hw/mlx4/Kconfig"
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source "drivers/infiniband/hw/nes/Kconfig"
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source "drivers/infiniband/hw/ocrdma/Kconfig"
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source "drivers/infiniband/ulp/ipoib/Kconfig"
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@ -8,6 +8,7 @@ obj-$(CONFIG_INFINIBAND_CXGB3) += hw/cxgb3/
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obj-$(CONFIG_INFINIBAND_CXGB4) += hw/cxgb4/
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obj-$(CONFIG_MLX4_INFINIBAND) += hw/mlx4/
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obj-$(CONFIG_INFINIBAND_NES) += hw/nes/
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obj-$(CONFIG_INFINIBAND_OCRDMA) += hw/ocrdma/
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obj-$(CONFIG_INFINIBAND_IPOIB) += ulp/ipoib/
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obj-$(CONFIG_INFINIBAND_SRP) += ulp/srp/
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obj-$(CONFIG_INFINIBAND_SRPT) += ulp/srpt/
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@ -0,0 +1,8 @@
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config INFINIBAND_OCRDMA
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tristate "Emulex One Connect HCA support"
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depends on ETHERNET && NETDEVICES && PCI
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select NET_VENDOR_EMULEX
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select BE2NET
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---help---
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This driver provides low-level InfiniBand over Ethernet
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support for Emulex One Connect host channel adapters (HCAs).
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@ -0,0 +1,5 @@
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ccflags-y := -Idrivers/net/ethernet/emulex/benet
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obj-$(CONFIG_INFINIBAND_OCRDMA) += ocrdma.o
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ocrdma-y := ocrdma_main.o ocrdma_verbs.o ocrdma_hw.o ocrdma_ah.o
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@ -0,0 +1,392 @@
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/*******************************************************************
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* This file is part of the Emulex RoCE Device Driver for *
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* RoCE (RDMA over Converged Ethernet) adapters. *
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* Copyright (C) 2008-2012 Emulex. All rights reserved. *
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* EMULEX and SLI are trademarks of Emulex. *
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* www.emulex.com *
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* *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of version 2 of the GNU General *
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* Public License as published by the Free Software Foundation. *
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* This program is distributed in the hope that it will be useful. *
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* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
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* WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
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* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
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* DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
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* TO BE LEGALLY INVALID. See the GNU General Public License for *
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* more details, a copy of which can be found in the file COPYING *
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* included with this package. *
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*
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* Contact Information:
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* linux-drivers@emulex.com
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*
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* Emulex
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* 3333 Susan Street
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* Costa Mesa, CA 92626
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*******************************************************************/
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#ifndef __OCRDMA_H__
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#define __OCRDMA_H__
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#include <linux/mutex.h>
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#include <linux/list.h>
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#include <linux/spinlock.h>
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#include <linux/pci.h>
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#include <rdma/ib_verbs.h>
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#include <rdma/ib_user_verbs.h>
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#include <be_roce.h>
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#include "ocrdma_sli.h"
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#define OCRDMA_ROCE_DEV_VERSION "1.0.0"
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#define OCRDMA_NODE_DESC "Emulex OneConnect RoCE HCA"
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#define ocrdma_err(format, arg...) printk(KERN_ERR format, ##arg)
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#define OCRDMA_MAX_AH 512
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#define OCRDMA_UVERBS(CMD_NAME) (1ull << IB_USER_VERBS_CMD_##CMD_NAME)
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struct ocrdma_dev_attr {
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u8 fw_ver[32];
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u32 vendor_id;
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u32 device_id;
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u16 max_pd;
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u16 max_cq;
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u16 max_cqe;
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u16 max_qp;
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u16 max_wqe;
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u16 max_rqe;
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u32 max_inline_data;
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int max_send_sge;
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int max_recv_sge;
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int max_mr;
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u64 max_mr_size;
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u32 max_num_mr_pbl;
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int max_fmr;
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int max_map_per_fmr;
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int max_pages_per_frmr;
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u16 max_ord_per_qp;
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u16 max_ird_per_qp;
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int device_cap_flags;
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u8 cq_overflow_detect;
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u8 srq_supported;
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u32 wqe_size;
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u32 rqe_size;
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u32 ird_page_size;
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u8 local_ca_ack_delay;
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u8 ird;
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u8 num_ird_pages;
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};
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struct ocrdma_pbl {
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void *va;
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dma_addr_t pa;
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};
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struct ocrdma_queue_info {
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void *va;
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dma_addr_t dma;
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u32 size;
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u16 len;
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u16 entry_size; /* Size of an element in the queue */
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u16 id; /* qid, where to ring the doorbell. */
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u16 head, tail;
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bool created;
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atomic_t used; /* Number of valid elements in the queue */
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};
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struct ocrdma_eq {
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struct ocrdma_queue_info q;
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u32 vector;
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int cq_cnt;
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struct ocrdma_dev *dev;
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char irq_name[32];
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};
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struct ocrdma_mq {
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struct ocrdma_queue_info sq;
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struct ocrdma_queue_info cq;
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bool rearm_cq;
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};
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struct mqe_ctx {
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struct mutex lock; /* for serializing mailbox commands on MQ */
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wait_queue_head_t cmd_wait;
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u32 tag;
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u16 cqe_status;
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u16 ext_status;
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bool cmd_done;
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};
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struct ocrdma_dev {
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struct ib_device ibdev;
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struct ocrdma_dev_attr attr;
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struct mutex dev_lock; /* provides syncronise access to device data */
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spinlock_t flush_q_lock ____cacheline_aligned;
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struct ocrdma_cq **cq_tbl;
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struct ocrdma_qp **qp_tbl;
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struct ocrdma_eq meq;
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struct ocrdma_eq *qp_eq_tbl;
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int eq_cnt;
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u16 base_eqid;
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u16 max_eq;
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union ib_gid *sgid_tbl;
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/* provided synchronization to sgid table for
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* updating gid entries triggered by notifier.
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*/
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spinlock_t sgid_lock;
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int gsi_qp_created;
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struct ocrdma_cq *gsi_sqcq;
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struct ocrdma_cq *gsi_rqcq;
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struct {
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struct ocrdma_av *va;
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dma_addr_t pa;
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u32 size;
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u32 num_ah;
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/* provide synchronization for av
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* entry allocations.
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*/
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spinlock_t lock;
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u32 ahid;
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struct ocrdma_pbl pbl;
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} av_tbl;
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void *mbx_cmd;
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struct ocrdma_mq mq;
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struct mqe_ctx mqe_ctx;
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struct be_dev_info nic_info;
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struct list_head entry;
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int id;
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};
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struct ocrdma_cq {
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struct ib_cq ibcq;
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struct ocrdma_dev *dev;
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struct ocrdma_cqe *va;
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u32 phase;
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u32 getp; /* pointer to pending wrs to
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* return to stack, wrap arounds
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* at max_hw_cqe
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*/
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u32 max_hw_cqe;
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bool phase_change;
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bool armed, solicited;
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bool arm_needed;
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spinlock_t cq_lock ____cacheline_aligned; /* provide synchronization
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* to cq polling
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*/
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/* syncronizes cq completion handler invoked from multiple context */
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spinlock_t comp_handler_lock ____cacheline_aligned;
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u16 id;
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u16 eqn;
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struct ocrdma_ucontext *ucontext;
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dma_addr_t pa;
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u32 len;
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atomic_t use_cnt;
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/* head of all qp's sq and rq for which cqes need to be flushed
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* by the software.
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*/
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struct list_head sq_head, rq_head;
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};
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struct ocrdma_pd {
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struct ib_pd ibpd;
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struct ocrdma_dev *dev;
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struct ocrdma_ucontext *uctx;
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atomic_t use_cnt;
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u32 id;
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int num_dpp_qp;
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u32 dpp_page;
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bool dpp_enabled;
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};
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struct ocrdma_ah {
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struct ib_ah ibah;
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struct ocrdma_dev *dev;
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struct ocrdma_av *av;
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u16 sgid_index;
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u32 id;
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};
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struct ocrdma_qp_hwq_info {
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u8 *va; /* virtual address */
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u32 max_sges;
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u32 head, tail;
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u32 entry_size;
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u32 max_cnt;
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u32 max_wqe_idx;
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u32 free_delta;
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u16 dbid; /* qid, where to ring the doorbell. */
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u32 len;
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dma_addr_t pa;
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};
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struct ocrdma_srq {
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struct ib_srq ibsrq;
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struct ocrdma_dev *dev;
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u8 __iomem *db;
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/* provide synchronization to multiple context(s) posting rqe */
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spinlock_t q_lock ____cacheline_aligned;
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struct ocrdma_qp_hwq_info rq;
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struct ocrdma_pd *pd;
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atomic_t use_cnt;
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u32 id;
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u64 *rqe_wr_id_tbl;
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u32 *idx_bit_fields;
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u32 bit_fields_len;
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};
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struct ocrdma_qp {
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struct ib_qp ibqp;
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struct ocrdma_dev *dev;
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u8 __iomem *sq_db;
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/* provide synchronization to multiple context(s) posting wqe, rqe */
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spinlock_t q_lock ____cacheline_aligned;
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struct ocrdma_qp_hwq_info sq;
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struct {
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uint64_t wrid;
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uint16_t dpp_wqe_idx;
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uint16_t dpp_wqe;
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uint8_t signaled;
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uint8_t rsvd[3];
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} *wqe_wr_id_tbl;
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u32 max_inline_data;
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struct ocrdma_cq *sq_cq;
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/* list maintained per CQ to flush SQ errors */
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struct list_head sq_entry;
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u8 __iomem *rq_db;
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struct ocrdma_qp_hwq_info rq;
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u64 *rqe_wr_id_tbl;
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struct ocrdma_cq *rq_cq;
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struct ocrdma_srq *srq;
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/* list maintained per CQ to flush RQ errors */
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struct list_head rq_entry;
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enum ocrdma_qp_state state; /* QP state */
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int cap_flags;
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u32 max_ord, max_ird;
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u32 id;
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struct ocrdma_pd *pd;
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enum ib_qp_type qp_type;
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int sgid_idx;
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u32 qkey;
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bool dpp_enabled;
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u8 *ird_q_va;
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};
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#define OCRDMA_GET_NUM_POSTED_SHIFT_VAL(qp) \
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(((qp->dev->nic_info.dev_family == OCRDMA_GEN2_FAMILY) && \
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(qp->id < 64)) ? 24 : 16)
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struct ocrdma_hw_mr {
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struct ocrdma_dev *dev;
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u32 lkey;
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u8 fr_mr;
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u8 remote_atomic;
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u8 remote_rd;
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u8 remote_wr;
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u8 local_rd;
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u8 local_wr;
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u8 mw_bind;
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u8 rsvd;
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u64 len;
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struct ocrdma_pbl *pbl_table;
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u32 num_pbls;
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u32 num_pbes;
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u32 pbl_size;
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u32 pbe_size;
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u64 fbo;
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u64 va;
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};
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struct ocrdma_mr {
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struct ib_mr ibmr;
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struct ib_umem *umem;
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struct ocrdma_hw_mr hwmr;
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struct ocrdma_pd *pd;
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};
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struct ocrdma_ucontext {
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struct ib_ucontext ibucontext;
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struct ocrdma_dev *dev;
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struct list_head mm_head;
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struct mutex mm_list_lock; /* protects list entries of mm type */
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struct {
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u32 *va;
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dma_addr_t pa;
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u32 len;
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} ah_tbl;
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};
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struct ocrdma_mm {
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struct {
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u64 phy_addr;
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unsigned long len;
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} key;
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struct list_head entry;
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};
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static inline struct ocrdma_dev *get_ocrdma_dev(struct ib_device *ibdev)
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{
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return container_of(ibdev, struct ocrdma_dev, ibdev);
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}
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static inline struct ocrdma_ucontext *get_ocrdma_ucontext(struct ib_ucontext
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*ibucontext)
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{
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return container_of(ibucontext, struct ocrdma_ucontext, ibucontext);
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}
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static inline struct ocrdma_pd *get_ocrdma_pd(struct ib_pd *ibpd)
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{
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return container_of(ibpd, struct ocrdma_pd, ibpd);
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}
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static inline struct ocrdma_cq *get_ocrdma_cq(struct ib_cq *ibcq)
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{
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return container_of(ibcq, struct ocrdma_cq, ibcq);
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}
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static inline struct ocrdma_qp *get_ocrdma_qp(struct ib_qp *ibqp)
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{
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return container_of(ibqp, struct ocrdma_qp, ibqp);
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}
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static inline struct ocrdma_mr *get_ocrdma_mr(struct ib_mr *ibmr)
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{
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return container_of(ibmr, struct ocrdma_mr, ibmr);
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}
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static inline struct ocrdma_ah *get_ocrdma_ah(struct ib_ah *ibah)
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{
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return container_of(ibah, struct ocrdma_ah, ibah);
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}
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static inline struct ocrdma_srq *get_ocrdma_srq(struct ib_srq *ibsrq)
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{
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return container_of(ibsrq, struct ocrdma_srq, ibsrq);
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}
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#endif
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@ -0,0 +1,134 @@
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/*******************************************************************
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* This file is part of the Emulex RoCE Device Driver for *
|
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* RoCE (RDMA over Converged Ethernet) adapters. *
|
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* Copyright (C) 2008-2012 Emulex. All rights reserved. *
|
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* EMULEX and SLI are trademarks of Emulex. *
|
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* www.emulex.com *
|
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* *
|
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* This program is free software; you can redistribute it and/or *
|
||||
* modify it under the terms of version 2 of the GNU General *
|
||||
* Public License as published by the Free Software Foundation. *
|
||||
* This program is distributed in the hope that it will be useful. *
|
||||
* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
|
||||
* WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
|
||||
* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
|
||||
* DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
|
||||
* TO BE LEGALLY INVALID. See the GNU General Public License for *
|
||||
* more details, a copy of which can be found in the file COPYING *
|
||||
* included with this package. *
|
||||
*
|
||||
* Contact Information:
|
||||
* linux-drivers@emulex.com
|
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*
|
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* Emulex
|
||||
* 3333 Susan Street
|
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* Costa Mesa, CA 92626
|
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*******************************************************************/
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#ifndef __OCRDMA_ABI_H__
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#define __OCRDMA_ABI_H__
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struct ocrdma_alloc_ucontext_resp {
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u32 dev_id;
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u32 wqe_size;
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u32 max_inline_data;
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u32 dpp_wqe_size;
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u64 ah_tbl_page;
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u32 ah_tbl_len;
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u32 rsvd;
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u8 fw_ver[32];
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u32 rqe_size;
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u64 rsvd1;
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} __packed;
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/* user kernel communication data structures. */
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struct ocrdma_alloc_pd_ureq {
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u64 rsvd1;
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} __packed;
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struct ocrdma_alloc_pd_uresp {
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u32 id;
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u32 dpp_enabled;
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u32 dpp_page_addr_hi;
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u32 dpp_page_addr_lo;
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u64 rsvd1;
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} __packed;
|
||||
|
||||
struct ocrdma_create_cq_ureq {
|
||||
u32 dpp_cq;
|
||||
u32 rsvd;
|
||||
} __packed;
|
||||
|
||||
#define MAX_CQ_PAGES 8
|
||||
struct ocrdma_create_cq_uresp {
|
||||
u32 cq_id;
|
||||
u32 page_size;
|
||||
u32 num_pages;
|
||||
u32 max_hw_cqe;
|
||||
u64 page_addr[MAX_CQ_PAGES];
|
||||
u64 db_page_addr;
|
||||
u32 db_page_size;
|
||||
u32 phase_change;
|
||||
u64 rsvd1;
|
||||
u64 rsvd2;
|
||||
} __packed;
|
||||
|
||||
#define MAX_QP_PAGES 8
|
||||
#define MAX_UD_AV_PAGES 8
|
||||
|
||||
struct ocrdma_create_qp_ureq {
|
||||
u8 enable_dpp_cq;
|
||||
u8 rsvd;
|
||||
u16 dpp_cq_id;
|
||||
u32 rsvd1;
|
||||
};
|
||||
|
||||
struct ocrdma_create_qp_uresp {
|
||||
u16 qp_id;
|
||||
u16 sq_dbid;
|
||||
u16 rq_dbid;
|
||||
u16 resv0;
|
||||
u32 sq_page_size;
|
||||
u32 rq_page_size;
|
||||
u32 num_sq_pages;
|
||||
u32 num_rq_pages;
|
||||
u64 sq_page_addr[MAX_QP_PAGES];
|
||||
u64 rq_page_addr[MAX_QP_PAGES];
|
||||
u64 db_page_addr;
|
||||
u32 db_page_size;
|
||||
u32 dpp_credit;
|
||||
u32 dpp_offset;
|
||||
u32 rsvd1;
|
||||
u32 num_wqe_allocated;
|
||||
u32 num_rqe_allocated;
|
||||
u32 free_wqe_delta;
|
||||
u32 free_rqe_delta;
|
||||
u32 db_sq_offset;
|
||||
u32 db_rq_offset;
|
||||
u32 db_shift;
|
||||
u64 rsvd2;
|
||||
u64 rsvd3;
|
||||
} __packed;
|
||||
|
||||
struct ocrdma_create_srq_uresp {
|
||||
u16 rq_dbid;
|
||||
u16 resv0;
|
||||
u32 resv1;
|
||||
|
||||
u32 rq_page_size;
|
||||
u32 num_rq_pages;
|
||||
|
||||
u64 rq_page_addr[MAX_QP_PAGES];
|
||||
u64 db_page_addr;
|
||||
|
||||
u32 db_page_size;
|
||||
u32 num_rqe_allocated;
|
||||
u32 db_rq_offset;
|
||||
u32 db_shift;
|
||||
|
||||
u32 free_rqe_delta;
|
||||
u32 rsvd2;
|
||||
u64 rsvd3;
|
||||
} __packed;
|
||||
|
||||
#endif /* __OCRDMA_ABI_H__ */
|
||||
|
|
@ -0,0 +1,172 @@
|
|||
/*******************************************************************
|
||||
* This file is part of the Emulex RoCE Device Driver for *
|
||||
* RoCE (RDMA over Converged Ethernet) adapters. *
|
||||
* Copyright (C) 2008-2012 Emulex. All rights reserved. *
|
||||
* EMULEX and SLI are trademarks of Emulex. *
|
||||
* www.emulex.com *
|
||||
* *
|
||||
* This program is free software; you can redistribute it and/or *
|
||||
* modify it under the terms of version 2 of the GNU General *
|
||||
* Public License as published by the Free Software Foundation. *
|
||||
* This program is distributed in the hope that it will be useful. *
|
||||
* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
|
||||
* WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
|
||||
* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
|
||||
* DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
|
||||
* TO BE LEGALLY INVALID. See the GNU General Public License for *
|
||||
* more details, a copy of which can be found in the file COPYING *
|
||||
* included with this package. *
|
||||
*
|
||||
* Contact Information:
|
||||
* linux-drivers@emulex.com
|
||||
*
|
||||
* Emulex
|
||||
* 3333 Susan Street
|
||||
* Costa Mesa, CA 92626
|
||||
*******************************************************************/
|
||||
|
||||
#include <net/neighbour.h>
|
||||
#include <net/netevent.h>
|
||||
|
||||
#include <rdma/ib_addr.h>
|
||||
#include <rdma/ib_cache.h>
|
||||
|
||||
#include "ocrdma.h"
|
||||
#include "ocrdma_verbs.h"
|
||||
#include "ocrdma_ah.h"
|
||||
#include "ocrdma_hw.h"
|
||||
|
||||
static inline int set_av_attr(struct ocrdma_ah *ah,
|
||||
struct ib_ah_attr *attr, int pdid)
|
||||
{
|
||||
int status = 0;
|
||||
u16 vlan_tag; bool vlan_enabled = false;
|
||||
struct ocrdma_dev *dev = ah->dev;
|
||||
struct ocrdma_eth_vlan eth;
|
||||
struct ocrdma_grh grh;
|
||||
int eth_sz;
|
||||
|
||||
memset(ð, 0, sizeof(eth));
|
||||
memset(&grh, 0, sizeof(grh));
|
||||
|
||||
ah->sgid_index = attr->grh.sgid_index;
|
||||
|
||||
vlan_tag = rdma_get_vlan_id(&attr->grh.dgid);
|
||||
if (vlan_tag && (vlan_tag < 0x1000)) {
|
||||
eth.eth_type = cpu_to_be16(0x8100);
|
||||
eth.roce_eth_type = cpu_to_be16(OCRDMA_ROCE_ETH_TYPE);
|
||||
vlan_tag |= (attr->sl & 7) << 13;
|
||||
eth.vlan_tag = cpu_to_be16(vlan_tag);
|
||||
eth_sz = sizeof(struct ocrdma_eth_vlan);
|
||||
vlan_enabled = true;
|
||||
} else {
|
||||
eth.eth_type = cpu_to_be16(OCRDMA_ROCE_ETH_TYPE);
|
||||
eth_sz = sizeof(struct ocrdma_eth_basic);
|
||||
}
|
||||
memcpy(ð.smac[0], &dev->nic_info.mac_addr[0], ETH_ALEN);
|
||||
status = ocrdma_resolve_dgid(dev, &attr->grh.dgid, ð.dmac[0]);
|
||||
if (status)
|
||||
return status;
|
||||
status = ocrdma_query_gid(&dev->ibdev, 1, attr->grh.sgid_index,
|
||||
(union ib_gid *)&grh.sgid[0]);
|
||||
if (status)
|
||||
return status;
|
||||
|
||||
grh.tclass_flow = cpu_to_be32((6 << 28) |
|
||||
(attr->grh.traffic_class << 24) |
|
||||
attr->grh.flow_label);
|
||||
/* 0x1b is next header value in GRH */
|
||||
grh.pdid_hoplimit = cpu_to_be32((pdid << 16) |
|
||||
(0x1b << 8) | attr->grh.hop_limit);
|
||||
|
||||
memcpy(&grh.dgid[0], attr->grh.dgid.raw, sizeof(attr->grh.dgid.raw));
|
||||
memcpy(&ah->av->eth_hdr, ð, eth_sz);
|
||||
memcpy((u8 *)ah->av + eth_sz, &grh, sizeof(struct ocrdma_grh));
|
||||
if (vlan_enabled)
|
||||
ah->av->valid |= OCRDMA_AV_VLAN_VALID;
|
||||
return status;
|
||||
}
|
||||
|
||||
struct ib_ah *ocrdma_create_ah(struct ib_pd *ibpd, struct ib_ah_attr *attr)
|
||||
{
|
||||
u32 *ahid_addr;
|
||||
int status;
|
||||
struct ocrdma_ah *ah;
|
||||
struct ocrdma_pd *pd = get_ocrdma_pd(ibpd);
|
||||
struct ocrdma_dev *dev = pd->dev;
|
||||
|
||||
if (!(attr->ah_flags & IB_AH_GRH))
|
||||
return ERR_PTR(-EINVAL);
|
||||
|
||||
ah = kzalloc(sizeof *ah, GFP_ATOMIC);
|
||||
if (!ah)
|
||||
return ERR_PTR(-ENOMEM);
|
||||
ah->dev = pd->dev;
|
||||
|
||||
status = ocrdma_alloc_av(dev, ah);
|
||||
if (status)
|
||||
goto av_err;
|
||||
status = set_av_attr(ah, attr, pd->id);
|
||||
if (status)
|
||||
goto av_conf_err;
|
||||
|
||||
/* if pd is for the user process, pass the ah_id to user space */
|
||||
if ((pd->uctx) && (pd->uctx->ah_tbl.va)) {
|
||||
ahid_addr = pd->uctx->ah_tbl.va + attr->dlid;
|
||||
*ahid_addr = ah->id;
|
||||
}
|
||||
return &ah->ibah;
|
||||
|
||||
av_conf_err:
|
||||
ocrdma_free_av(dev, ah);
|
||||
av_err:
|
||||
kfree(ah);
|
||||
return ERR_PTR(status);
|
||||
}
|
||||
|
||||
int ocrdma_destroy_ah(struct ib_ah *ibah)
|
||||
{
|
||||
struct ocrdma_ah *ah = get_ocrdma_ah(ibah);
|
||||
ocrdma_free_av(ah->dev, ah);
|
||||
kfree(ah);
|
||||
return 0;
|
||||
}
|
||||
|
||||
int ocrdma_query_ah(struct ib_ah *ibah, struct ib_ah_attr *attr)
|
||||
{
|
||||
struct ocrdma_ah *ah = get_ocrdma_ah(ibah);
|
||||
struct ocrdma_av *av = ah->av;
|
||||
struct ocrdma_grh *grh;
|
||||
attr->ah_flags |= IB_AH_GRH;
|
||||
if (ah->av->valid & Bit(1)) {
|
||||
grh = (struct ocrdma_grh *)((u8 *)ah->av +
|
||||
sizeof(struct ocrdma_eth_vlan));
|
||||
attr->sl = be16_to_cpu(av->eth_hdr.vlan_tag) >> 13;
|
||||
} else {
|
||||
grh = (struct ocrdma_grh *)((u8 *)ah->av +
|
||||
sizeof(struct ocrdma_eth_basic));
|
||||
attr->sl = 0;
|
||||
}
|
||||
memcpy(&attr->grh.dgid.raw[0], &grh->dgid[0], sizeof(grh->dgid));
|
||||
attr->grh.sgid_index = ah->sgid_index;
|
||||
attr->grh.hop_limit = be32_to_cpu(grh->pdid_hoplimit) & 0xff;
|
||||
attr->grh.traffic_class = be32_to_cpu(grh->tclass_flow) >> 24;
|
||||
attr->grh.flow_label = be32_to_cpu(grh->tclass_flow) & 0x00ffffffff;
|
||||
return 0;
|
||||
}
|
||||
|
||||
int ocrdma_modify_ah(struct ib_ah *ibah, struct ib_ah_attr *attr)
|
||||
{
|
||||
/* modify_ah is unsupported */
|
||||
return -ENOSYS;
|
||||
}
|
||||
|
||||
int ocrdma_process_mad(struct ib_device *ibdev,
|
||||
int process_mad_flags,
|
||||
u8 port_num,
|
||||
struct ib_wc *in_wc,
|
||||
struct ib_grh *in_grh,
|
||||
struct ib_mad *in_mad, struct ib_mad *out_mad)
|
||||
{
|
||||
return IB_MAD_RESULT_SUCCESS;
|
||||
}
|
||||
|
|
@ -0,0 +1,42 @@
|
|||
/*******************************************************************
|
||||
* This file is part of the Emulex RoCE Device Driver for *
|
||||
* RoCE (RDMA over Converged Ethernet) adapters. *
|
||||
* Copyright (C) 2008-2012 Emulex. All rights reserved. *
|
||||
* EMULEX and SLI are trademarks of Emulex. *
|
||||
* www.emulex.com *
|
||||
* *
|
||||
* This program is free software; you can redistribute it and/or *
|
||||
* modify it under the terms of version 2 of the GNU General *
|
||||
* Public License as published by the Free Software Foundation. *
|
||||
* This program is distributed in the hope that it will be useful. *
|
||||
* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
|
||||
* WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
|
||||
* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
|
||||
* DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
|
||||
* TO BE LEGALLY INVALID. See the GNU General Public License for *
|
||||
* more details, a copy of which can be found in the file COPYING *
|
||||
* included with this package. *
|
||||
*
|
||||
* Contact Information:
|
||||
* linux-drivers@emulex.com
|
||||
*
|
||||
* Emulex
|
||||
* 3333 Susan Street
|
||||
* Costa Mesa, CA 92626
|
||||
*******************************************************************/
|
||||
|
||||
#ifndef __OCRDMA_AH_H__
|
||||
#define __OCRDMA_AH_H__
|
||||
|
||||
struct ib_ah *ocrdma_create_ah(struct ib_pd *, struct ib_ah_attr *);
|
||||
int ocrdma_destroy_ah(struct ib_ah *);
|
||||
int ocrdma_query_ah(struct ib_ah *, struct ib_ah_attr *);
|
||||
int ocrdma_modify_ah(struct ib_ah *, struct ib_ah_attr *);
|
||||
|
||||
int ocrdma_process_mad(struct ib_device *,
|
||||
int process_mad_flags,
|
||||
u8 port_num,
|
||||
struct ib_wc *in_wc,
|
||||
struct ib_grh *in_grh,
|
||||
struct ib_mad *in_mad, struct ib_mad *out_mad);
|
||||
#endif /* __OCRDMA_AH_H__ */
|
||||
File diff suppressed because it is too large
Load Diff
|
|
@ -0,0 +1,132 @@
|
|||
/*******************************************************************
|
||||
* This file is part of the Emulex RoCE Device Driver for *
|
||||
* RoCE (RDMA over Converged Ethernet) CNA Adapters. *
|
||||
* Copyright (C) 2008-2012 Emulex. All rights reserved. *
|
||||
* EMULEX and SLI are trademarks of Emulex. *
|
||||
* www.emulex.com *
|
||||
* *
|
||||
* This program is free software; you can redistribute it and/or *
|
||||
* modify it under the terms of version 2 of the GNU General *
|
||||
* Public License as published by the Free Software Foundation. *
|
||||
* This program is distributed in the hope that it will be useful. *
|
||||
* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
|
||||
* WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
|
||||
* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
|
||||
* DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
|
||||
* TO BE LEGALLY INVALID. See the GNU General Public License for *
|
||||
* more details, a copy of which can be found in the file COPYING *
|
||||
* included with this package. *
|
||||
*
|
||||
* Contact Information:
|
||||
* linux-drivers@emulex.com
|
||||
*
|
||||
* Emulex
|
||||
* 3333 Susan Street
|
||||
* Costa Mesa, CA 92626
|
||||
*******************************************************************/
|
||||
|
||||
#ifndef __OCRDMA_HW_H__
|
||||
#define __OCRDMA_HW_H__
|
||||
|
||||
#include "ocrdma_sli.h"
|
||||
|
||||
static inline void ocrdma_cpu_to_le32(void *dst, u32 len)
|
||||
{
|
||||
#ifdef __BIG_ENDIAN
|
||||
int i = 0;
|
||||
u32 *src_ptr = dst;
|
||||
u32 *dst_ptr = dst;
|
||||
for (; i < (len / 4); i++)
|
||||
*(dst_ptr + i) = cpu_to_le32p(src_ptr + i);
|
||||
#endif
|
||||
}
|
||||
|
||||
static inline void ocrdma_le32_to_cpu(void *dst, u32 len)
|
||||
{
|
||||
#ifdef __BIG_ENDIAN
|
||||
int i = 0;
|
||||
u32 *src_ptr = dst;
|
||||
u32 *dst_ptr = dst;
|
||||
for (; i < (len / sizeof(u32)); i++)
|
||||
*(dst_ptr + i) = le32_to_cpu(*(src_ptr + i));
|
||||
#endif
|
||||
}
|
||||
|
||||
static inline void ocrdma_copy_cpu_to_le32(void *dst, void *src, u32 len)
|
||||
{
|
||||
#ifdef __BIG_ENDIAN
|
||||
int i = 0;
|
||||
u32 *src_ptr = src;
|
||||
u32 *dst_ptr = dst;
|
||||
for (; i < (len / sizeof(u32)); i++)
|
||||
*(dst_ptr + i) = cpu_to_le32p(src_ptr + i);
|
||||
#else
|
||||
memcpy(dst, src, len);
|
||||
#endif
|
||||
}
|
||||
|
||||
static inline void ocrdma_copy_le32_to_cpu(void *dst, void *src, u32 len)
|
||||
{
|
||||
#ifdef __BIG_ENDIAN
|
||||
int i = 0;
|
||||
u32 *src_ptr = src;
|
||||
u32 *dst_ptr = dst;
|
||||
for (; i < len / sizeof(u32); i++)
|
||||
*(dst_ptr + i) = le32_to_cpu(*(src_ptr + i));
|
||||
#else
|
||||
memcpy(dst, src, len);
|
||||
#endif
|
||||
}
|
||||
|
||||
int ocrdma_init_hw(struct ocrdma_dev *);
|
||||
void ocrdma_cleanup_hw(struct ocrdma_dev *);
|
||||
|
||||
enum ib_qp_state get_ibqp_state(enum ocrdma_qp_state qps);
|
||||
void ocrdma_ring_cq_db(struct ocrdma_dev *, u16 cq_id, bool armed,
|
||||
bool solicited, u16 cqe_popped);
|
||||
|
||||
/* verbs specific mailbox commands */
|
||||
int ocrdma_query_config(struct ocrdma_dev *,
|
||||
struct ocrdma_mbx_query_config *config);
|
||||
int ocrdma_resolve_dgid(struct ocrdma_dev *, union ib_gid *dgid, u8 *mac_addr);
|
||||
|
||||
int ocrdma_mbx_alloc_pd(struct ocrdma_dev *, struct ocrdma_pd *);
|
||||
int ocrdma_mbx_dealloc_pd(struct ocrdma_dev *, struct ocrdma_pd *);
|
||||
|
||||
int ocrdma_mbx_alloc_lkey(struct ocrdma_dev *, struct ocrdma_hw_mr *hwmr,
|
||||
u32 pd_id, int addr_check);
|
||||
int ocrdma_mbx_dealloc_lkey(struct ocrdma_dev *, int fmr, u32 lkey);
|
||||
|
||||
int ocrdma_reg_mr(struct ocrdma_dev *, struct ocrdma_hw_mr *hwmr,
|
||||
u32 pd_id, int acc);
|
||||
int ocrdma_mbx_create_cq(struct ocrdma_dev *, struct ocrdma_cq *,
|
||||
int entries, int dpp_cq);
|
||||
int ocrdma_mbx_destroy_cq(struct ocrdma_dev *, struct ocrdma_cq *);
|
||||
|
||||
int ocrdma_mbx_create_qp(struct ocrdma_qp *, struct ib_qp_init_attr *attrs,
|
||||
u8 enable_dpp_cq, u16 dpp_cq_id, u16 *dpp_offset,
|
||||
u16 *dpp_credit_lmt);
|
||||
int ocrdma_mbx_modify_qp(struct ocrdma_dev *, struct ocrdma_qp *,
|
||||
struct ib_qp_attr *attrs, int attr_mask,
|
||||
enum ib_qp_state old_qps);
|
||||
int ocrdma_mbx_query_qp(struct ocrdma_dev *, struct ocrdma_qp *,
|
||||
struct ocrdma_qp_params *param);
|
||||
int ocrdma_mbx_destroy_qp(struct ocrdma_dev *, struct ocrdma_qp *);
|
||||
|
||||
int ocrdma_mbx_create_srq(struct ocrdma_srq *,
|
||||
struct ib_srq_init_attr *,
|
||||
struct ocrdma_pd *);
|
||||
int ocrdma_mbx_modify_srq(struct ocrdma_srq *, struct ib_srq_attr *);
|
||||
int ocrdma_mbx_query_srq(struct ocrdma_srq *, struct ib_srq_attr *);
|
||||
int ocrdma_mbx_destroy_srq(struct ocrdma_dev *, struct ocrdma_srq *);
|
||||
|
||||
int ocrdma_alloc_av(struct ocrdma_dev *, struct ocrdma_ah *);
|
||||
int ocrdma_free_av(struct ocrdma_dev *, struct ocrdma_ah *);
|
||||
|
||||
int ocrdma_qp_state_machine(struct ocrdma_qp *, enum ib_qp_state new_state,
|
||||
enum ib_qp_state *old_ib_state);
|
||||
bool ocrdma_is_qp_in_sq_flushlist(struct ocrdma_cq *, struct ocrdma_qp *);
|
||||
bool ocrdma_is_qp_in_rq_flushlist(struct ocrdma_cq *, struct ocrdma_qp *);
|
||||
void ocrdma_flush_qp(struct ocrdma_qp *);
|
||||
|
||||
#endif /* __OCRDMA_HW_H__ */
|
||||
|
|
@ -0,0 +1,558 @@
|
|||
/*******************************************************************
|
||||
* This file is part of the Emulex RoCE Device Driver for *
|
||||
* RoCE (RDMA over Converged Ethernet) adapters. *
|
||||
* Copyright (C) 2008-2012 Emulex. All rights reserved. *
|
||||
* EMULEX and SLI are trademarks of Emulex. *
|
||||
* www.emulex.com *
|
||||
* *
|
||||
* This program is free software; you can redistribute it and/or *
|
||||
* modify it under the terms of version 2 of the GNU General *
|
||||
* Public License as published by the Free Software Foundation. *
|
||||
* This program is distributed in the hope that it will be useful. *
|
||||
* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
|
||||
* WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
|
||||
* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
|
||||
* DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
|
||||
* TO BE LEGALLY INVALID. See the GNU General Public License for *
|
||||
* more details, a copy of which can be found in the file COPYING *
|
||||
* included with this package. *
|
||||
*
|
||||
* Contact Information:
|
||||
* linux-drivers@emulex.com
|
||||
*
|
||||
* Emulex
|
||||
* 3333 Susan Street
|
||||
* Costa Mesa, CA 92626
|
||||
*******************************************************************/
|
||||
|
||||
#include <linux/module.h>
|
||||
#include <linux/version.h>
|
||||
#include <linux/idr.h>
|
||||
#include <rdma/ib_verbs.h>
|
||||
#include <rdma/ib_user_verbs.h>
|
||||
#include <rdma/ib_addr.h>
|
||||
|
||||
#include <linux/netdevice.h>
|
||||
#include <net/addrconf.h>
|
||||
|
||||
#include "ocrdma.h"
|
||||
#include "ocrdma_verbs.h"
|
||||
#include "ocrdma_ah.h"
|
||||
#include "be_roce.h"
|
||||
#include "ocrdma_hw.h"
|
||||
|
||||
MODULE_VERSION(OCRDMA_ROCE_DEV_VERSION);
|
||||
MODULE_DESCRIPTION("Emulex RoCE HCA Driver");
|
||||
MODULE_AUTHOR("Emulex Corporation");
|
||||
MODULE_LICENSE("GPL");
|
||||
|
||||
static LIST_HEAD(ocrdma_dev_list);
|
||||
static DEFINE_MUTEX(ocrdma_devlist_lock);
|
||||
static DEFINE_IDR(ocrdma_dev_id);
|
||||
|
||||
static union ib_gid ocrdma_zero_sgid;
|
||||
static int ocrdma_inet6addr_event(struct notifier_block *,
|
||||
unsigned long, void *);
|
||||
|
||||
static struct notifier_block ocrdma_inet6addr_notifier = {
|
||||
.notifier_call = ocrdma_inet6addr_event
|
||||
};
|
||||
|
||||
int ocrdma_get_instance(void)
|
||||
{
|
||||
int instance = 0;
|
||||
|
||||
/* Assign an unused number */
|
||||
if (!idr_pre_get(&ocrdma_dev_id, GFP_KERNEL))
|
||||
return -1;
|
||||
if (idr_get_new(&ocrdma_dev_id, NULL, &instance))
|
||||
return -1;
|
||||
return instance;
|
||||
}
|
||||
|
||||
void ocrdma_get_guid(struct ocrdma_dev *dev, u8 *guid)
|
||||
{
|
||||
u8 mac_addr[6];
|
||||
|
||||
memcpy(&mac_addr[0], &dev->nic_info.mac_addr[0], ETH_ALEN);
|
||||
guid[0] = mac_addr[0] ^ 2;
|
||||
guid[1] = mac_addr[1];
|
||||
guid[2] = mac_addr[2];
|
||||
guid[3] = 0xff;
|
||||
guid[4] = 0xfe;
|
||||
guid[5] = mac_addr[3];
|
||||
guid[6] = mac_addr[4];
|
||||
guid[7] = mac_addr[5];
|
||||
}
|
||||
|
||||
static void ocrdma_build_sgid_mac(union ib_gid *sgid, unsigned char *mac_addr,
|
||||
bool is_vlan, u16 vlan_id)
|
||||
{
|
||||
sgid->global.subnet_prefix = cpu_to_be64(0xfe80000000000000LL);
|
||||
sgid->raw[8] = mac_addr[0] ^ 2;
|
||||
sgid->raw[9] = mac_addr[1];
|
||||
sgid->raw[10] = mac_addr[2];
|
||||
if (is_vlan) {
|
||||
sgid->raw[11] = vlan_id >> 8;
|
||||
sgid->raw[12] = vlan_id & 0xff;
|
||||
} else {
|
||||
sgid->raw[11] = 0xff;
|
||||
sgid->raw[12] = 0xfe;
|
||||
}
|
||||
sgid->raw[13] = mac_addr[3];
|
||||
sgid->raw[14] = mac_addr[4];
|
||||
sgid->raw[15] = mac_addr[5];
|
||||
}
|
||||
|
||||
static void ocrdma_add_sgid(struct ocrdma_dev *dev, unsigned char *mac_addr,
|
||||
bool is_vlan, u16 vlan_id)
|
||||
{
|
||||
int i;
|
||||
bool found = false;
|
||||
union ib_gid new_sgid;
|
||||
int free_idx = OCRDMA_MAX_SGID;
|
||||
unsigned long flags;
|
||||
|
||||
memset(&ocrdma_zero_sgid, 0, sizeof(union ib_gid));
|
||||
|
||||
ocrdma_build_sgid_mac(&new_sgid, mac_addr, is_vlan, vlan_id);
|
||||
|
||||
spin_lock_irqsave(&dev->sgid_lock, flags);
|
||||
for (i = 0; i < OCRDMA_MAX_SGID; i++) {
|
||||
if (!memcmp(&dev->sgid_tbl[i], &ocrdma_zero_sgid,
|
||||
sizeof(union ib_gid))) {
|
||||
/* found free entry */
|
||||
if (!found) {
|
||||
free_idx = i;
|
||||
found = true;
|
||||
break;
|
||||
}
|
||||
} else if (!memcmp(&dev->sgid_tbl[i], &new_sgid,
|
||||
sizeof(union ib_gid))) {
|
||||
/* entry already present, no addition is required. */
|
||||
spin_unlock_irqrestore(&dev->sgid_lock, flags);
|
||||
return;
|
||||
}
|
||||
}
|
||||
/* if entry doesn't exist and if table has some space, add entry */
|
||||
if (found)
|
||||
memcpy(&dev->sgid_tbl[free_idx], &new_sgid,
|
||||
sizeof(union ib_gid));
|
||||
spin_unlock_irqrestore(&dev->sgid_lock, flags);
|
||||
}
|
||||
|
||||
static bool ocrdma_del_sgid(struct ocrdma_dev *dev, unsigned char *mac_addr,
|
||||
bool is_vlan, u16 vlan_id)
|
||||
{
|
||||
int found = false;
|
||||
int i;
|
||||
union ib_gid sgid;
|
||||
unsigned long flags;
|
||||
|
||||
ocrdma_build_sgid_mac(&sgid, mac_addr, is_vlan, vlan_id);
|
||||
|
||||
spin_lock_irqsave(&dev->sgid_lock, flags);
|
||||
/* first is default sgid, which cannot be deleted. */
|
||||
for (i = 1; i < OCRDMA_MAX_SGID; i++) {
|
||||
if (!memcmp(&dev->sgid_tbl[i], &sgid, sizeof(union ib_gid))) {
|
||||
/* found matching entry */
|
||||
memset(&dev->sgid_tbl[i], 0, sizeof(union ib_gid));
|
||||
found = true;
|
||||
break;
|
||||
}
|
||||
}
|
||||
spin_unlock_irqrestore(&dev->sgid_lock, flags);
|
||||
return found;
|
||||
}
|
||||
|
||||
static void ocrdma_add_default_sgid(struct ocrdma_dev *dev)
|
||||
{
|
||||
/* GID Index 0 - Invariant manufacturer-assigned EUI-64 */
|
||||
union ib_gid *sgid = &dev->sgid_tbl[0];
|
||||
|
||||
sgid->global.subnet_prefix = cpu_to_be64(0xfe80000000000000LL);
|
||||
ocrdma_get_guid(dev, &sgid->raw[8]);
|
||||
}
|
||||
|
||||
static int ocrdma_build_sgid_tbl(struct ocrdma_dev *dev)
|
||||
{
|
||||
struct net_device *netdev, *tmp;
|
||||
u16 vlan_id;
|
||||
bool is_vlan;
|
||||
|
||||
netdev = dev->nic_info.netdev;
|
||||
|
||||
ocrdma_add_default_sgid(dev);
|
||||
|
||||
rcu_read_lock();
|
||||
for_each_netdev_rcu(&init_net, tmp) {
|
||||
if (netdev == tmp || vlan_dev_real_dev(tmp) == netdev) {
|
||||
if (!netif_running(tmp) || !netif_oper_up(tmp))
|
||||
continue;
|
||||
if (netdev != tmp) {
|
||||
vlan_id = vlan_dev_vlan_id(tmp);
|
||||
is_vlan = true;
|
||||
} else {
|
||||
is_vlan = false;
|
||||
vlan_id = 0;
|
||||
tmp = netdev;
|
||||
}
|
||||
ocrdma_add_sgid(dev, tmp->dev_addr, is_vlan, vlan_id);
|
||||
}
|
||||
}
|
||||
rcu_read_unlock();
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int ocrdma_inet6addr_event(struct notifier_block *notifier,
|
||||
unsigned long event, void *ptr)
|
||||
{
|
||||
struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
|
||||
struct net_device *event_netdev = ifa->idev->dev;
|
||||
struct net_device *netdev = NULL;
|
||||
struct ib_event gid_event;
|
||||
struct ocrdma_dev *dev;
|
||||
bool found = false;
|
||||
bool is_vlan = false;
|
||||
u16 vid = 0;
|
||||
|
||||
netdev = vlan_dev_real_dev(event_netdev);
|
||||
if (netdev != event_netdev) {
|
||||
is_vlan = true;
|
||||
vid = vlan_dev_vlan_id(event_netdev);
|
||||
}
|
||||
mutex_lock(&ocrdma_devlist_lock);
|
||||
list_for_each_entry(dev, &ocrdma_dev_list, entry) {
|
||||
if (dev->nic_info.netdev == netdev) {
|
||||
found = true;
|
||||
break;
|
||||
}
|
||||
}
|
||||
mutex_unlock(&ocrdma_devlist_lock);
|
||||
|
||||
if (!found)
|
||||
return NOTIFY_DONE;
|
||||
if (!rdma_link_local_addr((struct in6_addr *)&ifa->addr))
|
||||
return NOTIFY_DONE;
|
||||
|
||||
mutex_lock(&dev->dev_lock);
|
||||
switch (event) {
|
||||
case NETDEV_UP:
|
||||
ocrdma_add_sgid(dev, netdev->dev_addr, is_vlan, vid);
|
||||
break;
|
||||
case NETDEV_DOWN:
|
||||
found = ocrdma_del_sgid(dev, netdev->dev_addr, is_vlan, vid);
|
||||
if (found) {
|
||||
/* found the matching entry, notify
|
||||
* the consumers about it
|
||||
*/
|
||||
gid_event.device = &dev->ibdev;
|
||||
gid_event.element.port_num = 1;
|
||||
gid_event.event = IB_EVENT_GID_CHANGE;
|
||||
ib_dispatch_event(&gid_event);
|
||||
}
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
mutex_unlock(&dev->dev_lock);
|
||||
return NOTIFY_OK;
|
||||
}
|
||||
|
||||
static enum rdma_link_layer ocrdma_link_layer(struct ib_device *device,
|
||||
u8 port_num)
|
||||
{
|
||||
return IB_LINK_LAYER_ETHERNET;
|
||||
}
|
||||
|
||||
int ocrdma_register_device(struct ocrdma_dev *dev)
|
||||
{
|
||||
strlcpy(dev->ibdev.name, "ocrdma%d", IB_DEVICE_NAME_MAX);
|
||||
ocrdma_get_guid(dev, (u8 *)&dev->ibdev.node_guid);
|
||||
memcpy(dev->ibdev.node_desc, OCRDMA_NODE_DESC,
|
||||
sizeof(OCRDMA_NODE_DESC));
|
||||
dev->ibdev.owner = THIS_MODULE;
|
||||
dev->ibdev.uverbs_cmd_mask =
|
||||
OCRDMA_UVERBS(GET_CONTEXT) |
|
||||
OCRDMA_UVERBS(QUERY_DEVICE) |
|
||||
OCRDMA_UVERBS(QUERY_PORT) |
|
||||
OCRDMA_UVERBS(ALLOC_PD) |
|
||||
OCRDMA_UVERBS(DEALLOC_PD) |
|
||||
OCRDMA_UVERBS(REG_MR) |
|
||||
OCRDMA_UVERBS(DEREG_MR) |
|
||||
OCRDMA_UVERBS(CREATE_COMP_CHANNEL) |
|
||||
OCRDMA_UVERBS(CREATE_CQ) |
|
||||
OCRDMA_UVERBS(RESIZE_CQ) |
|
||||
OCRDMA_UVERBS(DESTROY_CQ) |
|
||||
OCRDMA_UVERBS(REQ_NOTIFY_CQ) |
|
||||
OCRDMA_UVERBS(CREATE_QP) |
|
||||
OCRDMA_UVERBS(MODIFY_QP) |
|
||||
OCRDMA_UVERBS(QUERY_QP) |
|
||||
OCRDMA_UVERBS(DESTROY_QP) |
|
||||
OCRDMA_UVERBS(POLL_CQ) |
|
||||
OCRDMA_UVERBS(POST_SEND) |
|
||||
OCRDMA_UVERBS(POST_RECV);
|
||||
|
||||
dev->ibdev.uverbs_cmd_mask |=
|
||||
OCRDMA_UVERBS(CREATE_AH) |
|
||||
OCRDMA_UVERBS(MODIFY_AH) |
|
||||
OCRDMA_UVERBS(QUERY_AH) |
|
||||
OCRDMA_UVERBS(DESTROY_AH);
|
||||
|
||||
dev->ibdev.node_type = RDMA_NODE_IB_CA;
|
||||
dev->ibdev.phys_port_cnt = 1;
|
||||
dev->ibdev.num_comp_vectors = 1;
|
||||
|
||||
/* mandatory verbs. */
|
||||
dev->ibdev.query_device = ocrdma_query_device;
|
||||
dev->ibdev.query_port = ocrdma_query_port;
|
||||
dev->ibdev.modify_port = ocrdma_modify_port;
|
||||
dev->ibdev.query_gid = ocrdma_query_gid;
|
||||
dev->ibdev.get_link_layer = ocrdma_link_layer;
|
||||
dev->ibdev.alloc_pd = ocrdma_alloc_pd;
|
||||
dev->ibdev.dealloc_pd = ocrdma_dealloc_pd;
|
||||
|
||||
dev->ibdev.create_cq = ocrdma_create_cq;
|
||||
dev->ibdev.destroy_cq = ocrdma_destroy_cq;
|
||||
dev->ibdev.resize_cq = ocrdma_resize_cq;
|
||||
|
||||
dev->ibdev.create_qp = ocrdma_create_qp;
|
||||
dev->ibdev.modify_qp = ocrdma_modify_qp;
|
||||
dev->ibdev.query_qp = ocrdma_query_qp;
|
||||
dev->ibdev.destroy_qp = ocrdma_destroy_qp;
|
||||
|
||||
dev->ibdev.query_pkey = ocrdma_query_pkey;
|
||||
dev->ibdev.create_ah = ocrdma_create_ah;
|
||||
dev->ibdev.destroy_ah = ocrdma_destroy_ah;
|
||||
dev->ibdev.query_ah = ocrdma_query_ah;
|
||||
dev->ibdev.modify_ah = ocrdma_modify_ah;
|
||||
|
||||
dev->ibdev.poll_cq = ocrdma_poll_cq;
|
||||
dev->ibdev.post_send = ocrdma_post_send;
|
||||
dev->ibdev.post_recv = ocrdma_post_recv;
|
||||
dev->ibdev.req_notify_cq = ocrdma_arm_cq;
|
||||
|
||||
dev->ibdev.get_dma_mr = ocrdma_get_dma_mr;
|
||||
dev->ibdev.dereg_mr = ocrdma_dereg_mr;
|
||||
dev->ibdev.reg_user_mr = ocrdma_reg_user_mr;
|
||||
|
||||
/* mandatory to support user space verbs consumer. */
|
||||
dev->ibdev.alloc_ucontext = ocrdma_alloc_ucontext;
|
||||
dev->ibdev.dealloc_ucontext = ocrdma_dealloc_ucontext;
|
||||
dev->ibdev.mmap = ocrdma_mmap;
|
||||
dev->ibdev.dma_device = &dev->nic_info.pdev->dev;
|
||||
|
||||
dev->ibdev.process_mad = ocrdma_process_mad;
|
||||
|
||||
if (dev->nic_info.dev_family == OCRDMA_GEN2_FAMILY) {
|
||||
dev->ibdev.uverbs_cmd_mask |=
|
||||
OCRDMA_UVERBS(CREATE_SRQ) |
|
||||
OCRDMA_UVERBS(MODIFY_SRQ) |
|
||||
OCRDMA_UVERBS(QUERY_SRQ) |
|
||||
OCRDMA_UVERBS(DESTROY_SRQ) |
|
||||
OCRDMA_UVERBS(POST_SRQ_RECV);
|
||||
|
||||
dev->ibdev.create_srq = ocrdma_create_srq;
|
||||
dev->ibdev.modify_srq = ocrdma_modify_srq;
|
||||
dev->ibdev.query_srq = ocrdma_query_srq;
|
||||
dev->ibdev.destroy_srq = ocrdma_destroy_srq;
|
||||
dev->ibdev.post_srq_recv = ocrdma_post_srq_recv;
|
||||
}
|
||||
return ib_register_device(&dev->ibdev, NULL);
|
||||
}
|
||||
|
||||
static int ocrdma_alloc_resources(struct ocrdma_dev *dev)
|
||||
{
|
||||
mutex_init(&dev->dev_lock);
|
||||
dev->sgid_tbl = kzalloc(sizeof(union ib_gid) *
|
||||
OCRDMA_MAX_SGID, GFP_KERNEL);
|
||||
if (!dev->sgid_tbl)
|
||||
goto alloc_err;
|
||||
spin_lock_init(&dev->sgid_lock);
|
||||
|
||||
dev->cq_tbl = kzalloc(sizeof(struct ocrdma_cq *) *
|
||||
OCRDMA_MAX_CQ, GFP_KERNEL);
|
||||
if (!dev->cq_tbl)
|
||||
goto alloc_err;
|
||||
|
||||
if (dev->attr.max_qp) {
|
||||
dev->qp_tbl = kzalloc(sizeof(struct ocrdma_qp *) *
|
||||
OCRDMA_MAX_QP, GFP_KERNEL);
|
||||
if (!dev->qp_tbl)
|
||||
goto alloc_err;
|
||||
}
|
||||
spin_lock_init(&dev->av_tbl.lock);
|
||||
spin_lock_init(&dev->flush_q_lock);
|
||||
return 0;
|
||||
alloc_err:
|
||||
ocrdma_err("%s(%d) error.\n", __func__, dev->id);
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
static void ocrdma_free_resources(struct ocrdma_dev *dev)
|
||||
{
|
||||
kfree(dev->qp_tbl);
|
||||
kfree(dev->cq_tbl);
|
||||
kfree(dev->sgid_tbl);
|
||||
}
|
||||
|
||||
static struct ocrdma_dev *ocrdma_add(struct be_dev_info *dev_info)
|
||||
{
|
||||
int status = 0;
|
||||
struct ocrdma_dev *dev;
|
||||
|
||||
dev = (struct ocrdma_dev *)ib_alloc_device(sizeof(struct ocrdma_dev));
|
||||
if (!dev) {
|
||||
ocrdma_err("Unable to allocate ib device\n");
|
||||
return NULL;
|
||||
}
|
||||
dev->mbx_cmd = kzalloc(sizeof(struct ocrdma_mqe_emb_cmd), GFP_KERNEL);
|
||||
if (!dev->mbx_cmd)
|
||||
goto idr_err;
|
||||
|
||||
memcpy(&dev->nic_info, dev_info, sizeof(*dev_info));
|
||||
dev->id = ocrdma_get_instance();
|
||||
if (dev->id < 0)
|
||||
goto idr_err;
|
||||
|
||||
status = ocrdma_init_hw(dev);
|
||||
if (status)
|
||||
goto init_err;
|
||||
|
||||
status = ocrdma_alloc_resources(dev);
|
||||
if (status)
|
||||
goto alloc_err;
|
||||
|
||||
status = ocrdma_build_sgid_tbl(dev);
|
||||
if (status)
|
||||
goto alloc_err;
|
||||
|
||||
status = ocrdma_register_device(dev);
|
||||
if (status)
|
||||
goto alloc_err;
|
||||
|
||||
mutex_lock(&ocrdma_devlist_lock);
|
||||
list_add_tail(&dev->entry, &ocrdma_dev_list);
|
||||
mutex_unlock(&ocrdma_devlist_lock);
|
||||
return dev;
|
||||
|
||||
alloc_err:
|
||||
ocrdma_free_resources(dev);
|
||||
ocrdma_cleanup_hw(dev);
|
||||
init_err:
|
||||
idr_remove(&ocrdma_dev_id, dev->id);
|
||||
idr_err:
|
||||
kfree(dev->mbx_cmd);
|
||||
ib_dealloc_device(&dev->ibdev);
|
||||
ocrdma_err("%s() leaving. ret=%d\n", __func__, status);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static void ocrdma_remove(struct ocrdma_dev *dev)
|
||||
{
|
||||
/* first unregister with stack to stop all the active traffic
|
||||
* of the registered clients.
|
||||
*/
|
||||
ib_unregister_device(&dev->ibdev);
|
||||
|
||||
mutex_lock(&ocrdma_devlist_lock);
|
||||
list_del(&dev->entry);
|
||||
mutex_unlock(&ocrdma_devlist_lock);
|
||||
|
||||
ocrdma_free_resources(dev);
|
||||
ocrdma_cleanup_hw(dev);
|
||||
|
||||
idr_remove(&ocrdma_dev_id, dev->id);
|
||||
kfree(dev->mbx_cmd);
|
||||
ib_dealloc_device(&dev->ibdev);
|
||||
}
|
||||
|
||||
static int ocrdma_open(struct ocrdma_dev *dev)
|
||||
{
|
||||
struct ib_event port_event;
|
||||
|
||||
port_event.event = IB_EVENT_PORT_ACTIVE;
|
||||
port_event.element.port_num = 1;
|
||||
port_event.device = &dev->ibdev;
|
||||
ib_dispatch_event(&port_event);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int ocrdma_close(struct ocrdma_dev *dev)
|
||||
{
|
||||
int i;
|
||||
struct ocrdma_qp *qp, **cur_qp;
|
||||
struct ib_event err_event;
|
||||
struct ib_qp_attr attrs;
|
||||
int attr_mask = IB_QP_STATE;
|
||||
|
||||
attrs.qp_state = IB_QPS_ERR;
|
||||
mutex_lock(&dev->dev_lock);
|
||||
if (dev->qp_tbl) {
|
||||
cur_qp = dev->qp_tbl;
|
||||
for (i = 0; i < OCRDMA_MAX_QP; i++) {
|
||||
qp = cur_qp[i];
|
||||
if (qp) {
|
||||
/* change the QP state to ERROR */
|
||||
_ocrdma_modify_qp(&qp->ibqp, &attrs, attr_mask);
|
||||
|
||||
err_event.event = IB_EVENT_QP_FATAL;
|
||||
err_event.element.qp = &qp->ibqp;
|
||||
err_event.device = &dev->ibdev;
|
||||
ib_dispatch_event(&err_event);
|
||||
}
|
||||
}
|
||||
}
|
||||
mutex_unlock(&dev->dev_lock);
|
||||
|
||||
err_event.event = IB_EVENT_PORT_ERR;
|
||||
err_event.element.port_num = 1;
|
||||
err_event.device = &dev->ibdev;
|
||||
ib_dispatch_event(&err_event);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* event handling via NIC driver ensures that all the NIC specific
|
||||
* initialization done before RoCE driver notifies
|
||||
* event to stack.
|
||||
*/
|
||||
static void ocrdma_event_handler(struct ocrdma_dev *dev, u32 event)
|
||||
{
|
||||
switch (event) {
|
||||
case BE_DEV_UP:
|
||||
ocrdma_open(dev);
|
||||
break;
|
||||
case BE_DEV_DOWN:
|
||||
ocrdma_close(dev);
|
||||
break;
|
||||
};
|
||||
}
|
||||
|
||||
struct ocrdma_driver ocrdma_drv = {
|
||||
.name = "ocrdma_driver",
|
||||
.add = ocrdma_add,
|
||||
.remove = ocrdma_remove,
|
||||
.state_change_handler = ocrdma_event_handler,
|
||||
};
|
||||
|
||||
static int __init ocrdma_init_module(void)
|
||||
{
|
||||
int status;
|
||||
|
||||
status = register_inet6addr_notifier(&ocrdma_inet6addr_notifier);
|
||||
if (status)
|
||||
return status;
|
||||
status = be_roce_register_driver(&ocrdma_drv);
|
||||
if (status)
|
||||
unregister_inet6addr_notifier(&ocrdma_inet6addr_notifier);
|
||||
return status;
|
||||
}
|
||||
|
||||
static void __exit ocrdma_exit_module(void)
|
||||
{
|
||||
be_roce_unregister_driver(&ocrdma_drv);
|
||||
unregister_inet6addr_notifier(&ocrdma_inet6addr_notifier);
|
||||
}
|
||||
|
||||
module_init(ocrdma_init_module);
|
||||
module_exit(ocrdma_exit_module);
|
||||
File diff suppressed because it is too large
Load Diff
File diff suppressed because it is too large
Load Diff
|
|
@ -0,0 +1,94 @@
|
|||
/*******************************************************************
|
||||
* This file is part of the Emulex RoCE Device Driver for *
|
||||
* RoCE (RDMA over Converged Ethernet) adapters. *
|
||||
* Copyright (C) 2008-2012 Emulex. All rights reserved. *
|
||||
* EMULEX and SLI are trademarks of Emulex. *
|
||||
* www.emulex.com *
|
||||
* *
|
||||
* This program is free software; you can redistribute it and/or *
|
||||
* modify it under the terms of version 2 of the GNU General *
|
||||
* Public License as published by the Free Software Foundation. *
|
||||
* This program is distributed in the hope that it will be useful. *
|
||||
* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
|
||||
* WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
|
||||
* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
|
||||
* DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
|
||||
* TO BE LEGALLY INVALID. See the GNU General Public License for *
|
||||
* more details, a copy of which can be found in the file COPYING *
|
||||
* included with this package. *
|
||||
*
|
||||
* Contact Information:
|
||||
* linux-drivers@emulex.com
|
||||
*
|
||||
* Emulex
|
||||
* 3333 Susan Street
|
||||
* Costa Mesa, CA 92626
|
||||
*******************************************************************/
|
||||
|
||||
#ifndef __OCRDMA_VERBS_H__
|
||||
#define __OCRDMA_VERBS_H__
|
||||
|
||||
#include <linux/version.h>
|
||||
int ocrdma_post_send(struct ib_qp *, struct ib_send_wr *,
|
||||
struct ib_send_wr **bad_wr);
|
||||
int ocrdma_post_recv(struct ib_qp *, struct ib_recv_wr *,
|
||||
struct ib_recv_wr **bad_wr);
|
||||
|
||||
int ocrdma_poll_cq(struct ib_cq *, int num_entries, struct ib_wc *wc);
|
||||
int ocrdma_arm_cq(struct ib_cq *, enum ib_cq_notify_flags flags);
|
||||
|
||||
int ocrdma_query_device(struct ib_device *, struct ib_device_attr *props);
|
||||
int ocrdma_query_port(struct ib_device *, u8 port, struct ib_port_attr *props);
|
||||
int ocrdma_modify_port(struct ib_device *, u8 port, int mask,
|
||||
struct ib_port_modify *props);
|
||||
|
||||
void ocrdma_get_guid(struct ocrdma_dev *, u8 *guid);
|
||||
int ocrdma_query_gid(struct ib_device *, u8 port,
|
||||
int index, union ib_gid *gid);
|
||||
int ocrdma_query_pkey(struct ib_device *, u8 port, u16 index, u16 *pkey);
|
||||
|
||||
struct ib_ucontext *ocrdma_alloc_ucontext(struct ib_device *,
|
||||
struct ib_udata *);
|
||||
int ocrdma_dealloc_ucontext(struct ib_ucontext *);
|
||||
|
||||
int ocrdma_mmap(struct ib_ucontext *, struct vm_area_struct *vma);
|
||||
|
||||
struct ib_pd *ocrdma_alloc_pd(struct ib_device *,
|
||||
struct ib_ucontext *, struct ib_udata *);
|
||||
int ocrdma_dealloc_pd(struct ib_pd *pd);
|
||||
|
||||
struct ib_cq *ocrdma_create_cq(struct ib_device *, int entries, int vector,
|
||||
struct ib_ucontext *, struct ib_udata *);
|
||||
int ocrdma_resize_cq(struct ib_cq *, int cqe, struct ib_udata *);
|
||||
int ocrdma_destroy_cq(struct ib_cq *);
|
||||
|
||||
struct ib_qp *ocrdma_create_qp(struct ib_pd *,
|
||||
struct ib_qp_init_attr *attrs,
|
||||
struct ib_udata *);
|
||||
int _ocrdma_modify_qp(struct ib_qp *, struct ib_qp_attr *attr,
|
||||
int attr_mask);
|
||||
int ocrdma_modify_qp(struct ib_qp *, struct ib_qp_attr *attr,
|
||||
int attr_mask, struct ib_udata *udata);
|
||||
int ocrdma_query_qp(struct ib_qp *,
|
||||
struct ib_qp_attr *qp_attr,
|
||||
int qp_attr_mask, struct ib_qp_init_attr *);
|
||||
int ocrdma_destroy_qp(struct ib_qp *);
|
||||
|
||||
struct ib_srq *ocrdma_create_srq(struct ib_pd *, struct ib_srq_init_attr *,
|
||||
struct ib_udata *);
|
||||
int ocrdma_modify_srq(struct ib_srq *, struct ib_srq_attr *,
|
||||
enum ib_srq_attr_mask, struct ib_udata *);
|
||||
int ocrdma_query_srq(struct ib_srq *, struct ib_srq_attr *);
|
||||
int ocrdma_destroy_srq(struct ib_srq *);
|
||||
int ocrdma_post_srq_recv(struct ib_srq *, struct ib_recv_wr *,
|
||||
struct ib_recv_wr **bad_recv_wr);
|
||||
|
||||
int ocrdma_dereg_mr(struct ib_mr *);
|
||||
struct ib_mr *ocrdma_get_dma_mr(struct ib_pd *, int acc);
|
||||
struct ib_mr *ocrdma_reg_kernel_mr(struct ib_pd *,
|
||||
struct ib_phys_buf *buffer_list,
|
||||
int num_phys_buf, int acc, u64 *iova_start);
|
||||
struct ib_mr *ocrdma_reg_user_mr(struct ib_pd *, u64 start, u64 length,
|
||||
u64 virt, int acc, struct ib_udata *);
|
||||
|
||||
#endif /* __OCRDMA_VERBS_H__ */
|
||||
Reference in New Issue