diff options
author | Parav Pandit <parav.pandit@emulex.com> | 2012-03-21 04:09:06 +0530 |
---|---|---|
committer | Roland Dreier <roland@purestorage.com> | 2012-05-08 11:17:47 -0700 |
commit | fe2caefcdf5869f308c102e3d64d40683bfad711 (patch) | |
tree | 897e66d7aad31183fec317c4edba4f72f8d98e08 | |
parent | 045508a8a36f9a82b63d1f6362bd323085638588 (diff) |
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>
-rw-r--r-- | drivers/infiniband/Kconfig | 1 | ||||
-rw-r--r-- | drivers/infiniband/Makefile | 1 | ||||
-rw-r--r-- | drivers/infiniband/hw/ocrdma/Kconfig | 8 | ||||
-rw-r--r-- | drivers/infiniband/hw/ocrdma/Makefile | 5 | ||||
-rw-r--r-- | drivers/infiniband/hw/ocrdma/ocrdma.h | 392 | ||||
-rw-r--r-- | drivers/infiniband/hw/ocrdma/ocrdma_abi.h | 134 | ||||
-rw-r--r-- | drivers/infiniband/hw/ocrdma/ocrdma_ah.c | 172 | ||||
-rw-r--r-- | drivers/infiniband/hw/ocrdma/ocrdma_ah.h | 42 | ||||
-rw-r--r-- | drivers/infiniband/hw/ocrdma/ocrdma_hw.c | 2640 | ||||
-rw-r--r-- | drivers/infiniband/hw/ocrdma/ocrdma_hw.h | 132 | ||||
-rw-r--r-- | drivers/infiniband/hw/ocrdma/ocrdma_main.c | 558 | ||||
-rw-r--r-- | drivers/infiniband/hw/ocrdma/ocrdma_sli.h | 1672 | ||||
-rw-r--r-- | drivers/infiniband/hw/ocrdma/ocrdma_verbs.c | 2542 | ||||
-rw-r--r-- | drivers/infiniband/hw/ocrdma/ocrdma_verbs.h | 94 |
14 files changed, 8393 insertions, 0 deletions
diff --git a/drivers/infiniband/Kconfig b/drivers/infiniband/Kconfig index eb0add311dc8..a0f29c1d03bc 100644 --- a/drivers/infiniband/Kconfig +++ b/drivers/infiniband/Kconfig @@ -51,6 +51,7 @@ source "drivers/infiniband/hw/cxgb3/Kconfig" source "drivers/infiniband/hw/cxgb4/Kconfig" source "drivers/infiniband/hw/mlx4/Kconfig" source "drivers/infiniband/hw/nes/Kconfig" +source "drivers/infiniband/hw/ocrdma/Kconfig" source "drivers/infiniband/ulp/ipoib/Kconfig" diff --git a/drivers/infiniband/Makefile b/drivers/infiniband/Makefile index a3b2d8eac86e..bf846a14b9d3 100644 --- a/drivers/infiniband/Makefile +++ b/drivers/infiniband/Makefile @@ -8,6 +8,7 @@ obj-$(CONFIG_INFINIBAND_CXGB3) += hw/cxgb3/ obj-$(CONFIG_INFINIBAND_CXGB4) += hw/cxgb4/ obj-$(CONFIG_MLX4_INFINIBAND) += hw/mlx4/ obj-$(CONFIG_INFINIBAND_NES) += hw/nes/ +obj-$(CONFIG_INFINIBAND_OCRDMA) += hw/ocrdma/ obj-$(CONFIG_INFINIBAND_IPOIB) += ulp/ipoib/ obj-$(CONFIG_INFINIBAND_SRP) += ulp/srp/ obj-$(CONFIG_INFINIBAND_SRPT) += ulp/srpt/ diff --git a/drivers/infiniband/hw/ocrdma/Kconfig b/drivers/infiniband/hw/ocrdma/Kconfig new file mode 100644 index 000000000000..cf993424e2fb --- /dev/null +++ b/drivers/infiniband/hw/ocrdma/Kconfig @@ -0,0 +1,8 @@ +config INFINIBAND_OCRDMA + tristate "Emulex One Connect HCA support" + depends on ETHERNET && NETDEVICES && PCI + select NET_VENDOR_EMULEX + select BE2NET + ---help--- + This driver provides low-level InfiniBand over Ethernet + support for Emulex One Connect host channel adapters (HCAs). diff --git a/drivers/infiniband/hw/ocrdma/Makefile b/drivers/infiniband/hw/ocrdma/Makefile new file mode 100644 index 000000000000..06a5bed12e43 --- /dev/null +++ b/drivers/infiniband/hw/ocrdma/Makefile @@ -0,0 +1,5 @@ +ccflags-y := -Idrivers/net/ethernet/emulex/benet + +obj-$(CONFIG_INFINIBAND_OCRDMA) += ocrdma.o + +ocrdma-y := ocrdma_main.o ocrdma_verbs.o ocrdma_hw.o ocrdma_ah.o diff --git a/drivers/infiniband/hw/ocrdma/ocrdma.h b/drivers/infiniband/hw/ocrdma/ocrdma.h new file mode 100644 index 000000000000..d7a44b812dfc --- /dev/null +++ b/drivers/infiniband/hw/ocrdma/ocrdma.h @@ -0,0 +1,392 @@ +/******************************************************************* + * 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_H__ +#define __OCRDMA_H__ + +#include <linux/mutex.h> +#include <linux/list.h> +#include <linux/spinlock.h> +#include <linux/pci.h> + +#include <rdma/ib_verbs.h> +#include <rdma/ib_user_verbs.h> + +#include <be_roce.h> +#include "ocrdma_sli.h" + +#define OCRDMA_ROCE_DEV_VERSION "1.0.0" +#define OCRDMA_NODE_DESC "Emulex OneConnect RoCE HCA" + +#define ocrdma_err(format, arg...) printk(KERN_ERR format, ##arg) + +#define OCRDMA_MAX_AH 512 + +#define OCRDMA_UVERBS(CMD_NAME) (1ull << IB_USER_VERBS_CMD_##CMD_NAME) + +struct ocrdma_dev_attr { + u8 fw_ver[32]; + u32 vendor_id; + u32 device_id; + u16 max_pd; + u16 max_cq; + u16 max_cqe; + u16 max_qp; + u16 max_wqe; + u16 max_rqe; + u32 max_inline_data; + int max_send_sge; + int max_recv_sge; + int max_mr; + u64 max_mr_size; + u32 max_num_mr_pbl; + int max_fmr; + int max_map_per_fmr; + int max_pages_per_frmr; + u16 max_ord_per_qp; + u16 max_ird_per_qp; + + int device_cap_flags; + u8 cq_overflow_detect; + u8 srq_supported; + + u32 wqe_size; + u32 rqe_size; + u32 ird_page_size; + u8 local_ca_ack_delay; + u8 ird; + u8 num_ird_pages; +}; + +struct ocrdma_pbl { + void *va; + dma_addr_t pa; +}; + +struct ocrdma_queue_info { + void *va; + dma_addr_t dma; + u32 size; + u16 len; + u16 entry_size; /* Size of an element in the queue */ + u16 id; /* qid, where to ring the doorbell. */ + u16 head, tail; + bool created; + atomic_t used; /* Number of valid elements in the queue */ +}; + +struct ocrdma_eq { + struct ocrdma_queue_info q; + u32 vector; + int cq_cnt; + struct ocrdma_dev *dev; + char irq_name[32]; +}; + +struct ocrdma_mq { + struct ocrdma_queue_info sq; + struct ocrdma_queue_info cq; + bool rearm_cq; +}; + +struct mqe_ctx { + struct mutex lock; /* for serializing mailbox commands on MQ */ + wait_queue_head_t cmd_wait; + u32 tag; + u16 cqe_status; + u16 ext_status; + bool cmd_done; +}; + +struct ocrdma_dev { + struct ib_device ibdev; + struct ocrdma_dev_attr attr; + + struct mutex dev_lock; /* provides syncronise access to device data */ + spinlock_t flush_q_lock ____cacheline_aligned; + + struct ocrdma_cq **cq_tbl; + struct ocrdma_qp **qp_tbl; + + struct ocrdma_eq meq; + struct ocrdma_eq *qp_eq_tbl; + int eq_cnt; + u16 base_eqid; + u16 max_eq; + + union ib_gid *sgid_tbl; + /* provided synchronization to sgid table for + * updating gid entries triggered by notifier. + */ + spinlock_t sgid_lock; + + int gsi_qp_created; + struct ocrdma_cq *gsi_sqcq; + struct ocrdma_cq *gsi_rqcq; + + struct { + struct ocrdma_av *va; + dma_addr_t pa; + u32 size; + u32 num_ah; + /* provide synchronization for av + * entry allocations. + */ + spinlock_t lock; + u32 ahid; + struct ocrdma_pbl pbl; + } av_tbl; + + void *mbx_cmd; + struct ocrdma_mq mq; + struct mqe_ctx mqe_ctx; + + struct be_dev_info nic_info; + + struct list_head entry; + int id; +}; + +struct ocrdma_cq { + struct ib_cq ibcq; + struct ocrdma_dev *dev; + struct ocrdma_cqe *va; + u32 phase; + u32 getp; /* pointer to pending wrs to + * return to stack, wrap arounds + * at max_hw_cqe + */ + u32 max_hw_cqe; + bool phase_change; + bool armed, solicited; + bool arm_needed; + + spinlock_t cq_lock ____cacheline_aligned; /* provide synchronization + * to cq polling + */ + /* syncronizes cq completion handler invoked from multiple context */ + spinlock_t comp_handler_lock ____cacheline_aligned; + u16 id; + u16 eqn; + + struct ocrdma_ucontext *ucontext; + dma_addr_t pa; + u32 len; + atomic_t use_cnt; + + /* head of all qp's sq and rq for which cqes need to be flushed + * by the software. + */ + struct list_head sq_head, rq_head; +}; + +struct ocrdma_pd { + struct ib_pd ibpd; + struct ocrdma_dev *dev; + struct ocrdma_ucontext *uctx; + atomic_t use_cnt; + u32 id; + int num_dpp_qp; + u32 dpp_page; + bool dpp_enabled; +}; + +struct ocrdma_ah { + struct ib_ah ibah; + struct ocrdma_dev *dev; + struct ocrdma_av *av; + u16 sgid_index; + u32 id; +}; + +struct ocrdma_qp_hwq_info { + u8 *va; /* virtual address */ + u32 max_sges; + u32 head, tail; + u32 entry_size; + u32 max_cnt; + u32 max_wqe_idx; + u32 free_delta; + u16 dbid; /* qid, where to ring the doorbell. */ + u32 len; + dma_addr_t pa; +}; + +struct ocrdma_srq { + struct ib_srq ibsrq; + struct ocrdma_dev *dev; + u8 __iomem *db; + /* provide synchronization to multiple context(s) posting rqe */ + spinlock_t q_lock ____cacheline_aligned; + + struct ocrdma_qp_hwq_info rq; + struct ocrdma_pd *pd; + atomic_t use_cnt; + u32 id; + u64 *rqe_wr_id_tbl; + u32 *idx_bit_fields; + u32 bit_fields_len; +}; + +struct ocrdma_qp { + struct ib_qp ibqp; + struct ocrdma_dev *dev; + + u8 __iomem *sq_db; + /* provide synchronization to multiple context(s) posting wqe, rqe */ + spinlock_t q_lock ____cacheline_aligned; + struct ocrdma_qp_hwq_info sq; + struct { + uint64_t wrid; + uint16_t dpp_wqe_idx; + uint16_t dpp_wqe; + uint8_t signaled; + uint8_t rsvd[3]; + } *wqe_wr_id_tbl; + u32 max_inline_data; + struct ocrdma_cq *sq_cq; + /* list maintained per CQ to flush SQ errors */ + struct list_head sq_entry; + + u8 __iomem *rq_db; + struct ocrdma_qp_hwq_info rq; + u64 *rqe_wr_id_tbl; + struct ocrdma_cq *rq_cq; + struct ocrdma_srq *srq; + /* list maintained per CQ to flush RQ errors */ + struct list_head rq_entry; + + enum ocrdma_qp_state state; /* QP state */ + int cap_flags; + u32 max_ord, max_ird; + + u32 id; + struct ocrdma_pd *pd; + + enum ib_qp_type qp_type; + + int sgid_idx; + u32 qkey; + bool dpp_enabled; + u8 *ird_q_va; +}; + +#define OCRDMA_GET_NUM_POSTED_SHIFT_VAL(qp) \ + (((qp->dev->nic_info.dev_family == OCRDMA_GEN2_FAMILY) && \ + (qp->id < 64)) ? 24 : 16) + +struct ocrdma_hw_mr { + struct ocrdma_dev *dev; + u32 lkey; + u8 fr_mr; + u8 remote_atomic; + u8 remote_rd; + u8 remote_wr; + u8 local_rd; + u8 local_wr; + u8 mw_bind; + u8 rsvd; + u64 len; + struct ocrdma_pbl *pbl_table; + u32 num_pbls; + u32 num_pbes; + u32 pbl_size; + u32 pbe_size; + u64 fbo; + u64 va; +}; + +struct ocrdma_mr { + struct ib_mr ibmr; + struct ib_umem *umem; + struct ocrdma_hw_mr hwmr; + struct ocrdma_pd *pd; +}; + +struct ocrdma_ucontext { + struct ib_ucontext ibucontext; + struct ocrdma_dev *dev; + + struct list_head mm_head; + struct mutex mm_list_lock; /* protects list entries of mm type */ + struct { + u32 *va; + dma_addr_t pa; + u32 len; + } ah_tbl; +}; + +struct ocrdma_mm { + struct { + u64 phy_addr; + unsigned long len; + } key; + struct list_head entry; +}; + +static inline struct ocrdma_dev *get_ocrdma_dev(struct ib_device *ibdev) +{ + return container_of(ibdev, struct ocrdma_dev, ibdev); +} + +static inline struct ocrdma_ucontext *get_ocrdma_ucontext(struct ib_ucontext + *ibucontext) +{ + return container_of(ibucontext, struct ocrdma_ucontext, ibucontext); +} + +static inline struct ocrdma_pd *get_ocrdma_pd(struct ib_pd *ibpd) +{ + return container_of(ibpd, struct ocrdma_pd, ibpd); +} + +static inline struct ocrdma_cq *get_ocrdma_cq(struct ib_cq *ibcq) +{ + return container_of(ibcq, struct ocrdma_cq, ibcq); +} + +static inline struct ocrdma_qp *get_ocrdma_qp(struct ib_qp *ibqp) +{ + return container_of(ibqp, struct ocrdma_qp, ibqp); +} + +static inline struct ocrdma_mr *get_ocrdma_mr(struct ib_mr *ibmr) +{ + return container_of(ibmr, struct ocrdma_mr, ibmr); +} + +static inline struct ocrdma_ah *get_ocrdma_ah(struct ib_ah *ibah) +{ + return container_of(ibah, struct ocrdma_ah, ibah); +} + +static inline struct ocrdma_srq *get_ocrdma_srq(struct ib_srq *ibsrq) +{ + return container_of(ibsrq, struct ocrdma_srq, ibsrq); +} + +#endif diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_abi.h b/drivers/infiniband/hw/ocrdma/ocrdma_abi.h new file mode 100644 index 000000000000..a411a4e3193d --- /dev/null +++ b/drivers/infiniband/hw/ocrdma/ocrdma_abi.h @@ -0,0 +1,134 @@ +/******************************************************************* + * 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_ABI_H__ +#define __OCRDMA_ABI_H__ + +struct ocrdma_alloc_ucontext_resp { + u32 dev_id; + u32 wqe_size; + u32 max_inline_data; + u32 dpp_wqe_size; + u64 ah_tbl_page; + u32 ah_tbl_len; + u32 rsvd; + u8 fw_ver[32]; + u32 rqe_size; + u64 rsvd1; +} __packed; + +/* user kernel communication data structures. */ +struct ocrdma_alloc_pd_ureq { + u64 rsvd1; +} __packed; + +struct ocrdma_alloc_pd_uresp { + u32 id; + u32 dpp_enabled; + u32 dpp_page_addr_hi; + u32 dpp_page_addr_lo; + u64 rsvd1; +} __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__ */ diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_ah.c b/drivers/infiniband/hw/ocrdma/ocrdma_ah.c new file mode 100644 index 000000000000..a877a8ed7907 --- /dev/null +++ b/drivers/infiniband/hw/ocrdma/ocrdma_ah.c @@ -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; +} diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_ah.h b/drivers/infiniband/hw/ocrdma/ocrdma_ah.h new file mode 100644 index 000000000000..8ac49e7f96d1 --- /dev/null +++ b/drivers/infiniband/hw/ocrdma/ocrdma_ah.h @@ -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__ */ diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_hw.c b/drivers/infiniband/hw/ocrdma/ocrdma_hw.c new file mode 100644 index 000000000000..c53545f1baf6 --- /dev/null +++ b/drivers/infiniband/hw/ocrdma/ocrdma_hw.c @@ -0,0 +1,2640 @@ +/******************************************************************* + * 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 + *******************************************************************/ + +#include <linux/sched.h> +#include <linux/interrupt.h> +#include <linux/log2.h> +#include <linux/dma-mapping.h> + +#include <rdma/ib_verbs.h> +#include <rdma/ib_user_verbs.h> +#include <rdma/ib_addr.h> + +#include "ocrdma.h" +#include "ocrdma_hw.h" +#include "ocrdma_verbs.h" +#include "ocrdma_ah.h" + +enum mbx_status { + OCRDMA_MBX_STATUS_FAILED = 1, + OCRDMA_MBX_STATUS_ILLEGAL_FIELD = 3, + OCRDMA_MBX_STATUS_OOR = 100, + OCRDMA_MBX_STATUS_INVALID_PD = 101, + OCRDMA_MBX_STATUS_PD_INUSE = 102, + OCRDMA_MBX_STATUS_INVALID_CQ = 103, + OCRDMA_MBX_STATUS_INVALID_QP = 104, + OCRDMA_MBX_STATUS_INVALID_LKEY = 105, + OCRDMA_MBX_STATUS_ORD_EXCEEDS = 106, + OCRDMA_MBX_STATUS_IRD_EXCEEDS = 107, + OCRDMA_MBX_STATUS_SENDQ_WQE_EXCEEDS = 108, + OCRDMA_MBX_STATUS_RECVQ_RQE_EXCEEDS = 109, + OCRDMA_MBX_STATUS_SGE_SEND_EXCEEDS = 110, + OCRDMA_MBX_STATUS_SGE_WRITE_EXCEEDS = 111, + OCRDMA_MBX_STATUS_SGE_RECV_EXCEEDS = 112, + OCRDMA_MBX_STATUS_INVALID_STATE_CHANGE = 113, + OCRDMA_MBX_STATUS_MW_BOUND = 114, + OCRDMA_MBX_STATUS_INVALID_VA = 115, + OCRDMA_MBX_STATUS_INVALID_LENGTH = 116, + OCRDMA_MBX_STATUS_INVALID_FBO = 117, + OCRDMA_MBX_STATUS_INVALID_ACC_RIGHTS = 118, + OCRDMA_MBX_STATUS_INVALID_PBE_SIZE = 119, + OCRDMA_MBX_STATUS_INVALID_PBL_ENTRY = 120, + OCRDMA_MBX_STATUS_INVALID_PBL_SHIFT = 121, + OCRDMA_MBX_STATUS_INVALID_SRQ_ID = 129, + OCRDMA_MBX_STATUS_SRQ_ERROR = 133, + OCRDMA_MBX_STATUS_RQE_EXCEEDS = 134, + OCRDMA_MBX_STATUS_MTU_EXCEEDS = 135, + OCRDMA_MBX_STATUS_MAX_QP_EXCEEDS = 136, + OCRDMA_MBX_STATUS_SRQ_LIMIT_EXCEEDS = 137, + OCRDMA_MBX_STATUS_SRQ_SIZE_UNDERUNS = 138, + OCRDMA_MBX_STATUS_QP_BOUND = 130, + OCRDMA_MBX_STATUS_INVALID_CHANGE = 139, + OCRDMA_MBX_STATUS_ATOMIC_OPS_UNSUP = 140, + OCRDMA_MBX_STATUS_INVALID_RNR_NAK_TIMER = 141, + OCRDMA_MBX_STATUS_MW_STILL_BOUND = 142, + OCRDMA_MBX_STATUS_PKEY_INDEX_INVALID = 143, + OCRDMA_MBX_STATUS_PKEY_INDEX_EXCEEDS = 144 +}; + +enum additional_status { + OCRDMA_MBX_ADDI_STATUS_INSUFFICIENT_RESOURCES = 22 +}; + +enum cqe_status { + OCRDMA_MBX_CQE_STATUS_INSUFFICIENT_PRIVILEDGES = 1, + OCRDMA_MBX_CQE_STATUS_INVALID_PARAMETER = 2, + OCRDMA_MBX_CQE_STATUS_INSUFFICIENT_RESOURCES = 3, + OCRDMA_MBX_CQE_STATUS_QUEUE_FLUSHING = 4, + OCRDMA_MBX_CQE_STATUS_DMA_FAILED = 5 +}; + +static inline void *ocrdma_get_eqe(struct ocrdma_eq *eq) +{ + return (u8 *)eq->q.va + (eq->q.tail * sizeof(struct ocrdma_eqe)); +} + +static inline void ocrdma_eq_inc_tail(struct ocrdma_eq *eq) +{ + eq->q.tail = (eq->q.tail + 1) & (OCRDMA_EQ_LEN - 1); +} + +static inline void *ocrdma_get_mcqe(struct ocrdma_dev *dev) +{ + struct ocrdma_mcqe *cqe = (struct ocrdma_mcqe *) + ((u8 *) dev->mq.cq.va + + (dev->mq.cq.tail * sizeof(struct ocrdma_mcqe))); + + if (!(le32_to_cpu(cqe->valid_ae_cmpl_cons) & OCRDMA_MCQE_VALID_MASK)) + return NULL; + return cqe; +} + +static inline void ocrdma_mcq_inc_tail(struct ocrdma_dev *dev) +{ + dev->mq.cq.tail = (dev->mq.cq.tail + 1) & (OCRDMA_MQ_CQ_LEN - 1); +} + +static inline struct ocrdma_mqe *ocrdma_get_mqe(struct ocrdma_dev *dev) +{ + return (struct ocrdma_mqe *)((u8 *) dev->mq.sq.va + + (dev->mq.sq.head * + sizeof(struct ocrdma_mqe))); +} + +static inline void ocrdma_mq_inc_head(struct ocrdma_dev *dev) +{ + dev->mq.sq.head = (dev->mq.sq.head + 1) & (OCRDMA_MQ_LEN - 1); + atomic_inc(&dev->mq.sq.used); +} + +static inline void *ocrdma_get_mqe_rsp(struct ocrdma_dev *dev) +{ + return (void *)((u8 *) dev->mq.sq.va + + (dev->mqe_ctx.tag * sizeof(struct ocrdma_mqe))); +} + +enum ib_qp_state get_ibqp_state(enum ocrdma_qp_state qps) +{ + switch (qps) { + case OCRDMA_QPS_RST: + return IB_QPS_RESET; + case OCRDMA_QPS_INIT: + return IB_QPS_INIT; + case OCRDMA_QPS_RTR: + return IB_QPS_RTR; + case OCRDMA_QPS_RTS: + return IB_QPS_RTS; + case OCRDMA_QPS_SQD: + case OCRDMA_QPS_SQ_DRAINING: + return IB_QPS_SQD; + case OCRDMA_QPS_SQE: + return IB_QPS_SQE; + case OCRDMA_QPS_ERR: + return IB_QPS_ERR; + }; + return IB_QPS_ERR; +} + +enum ocrdma_qp_state get_ocrdma_qp_state(enum ib_qp_state qps) +{ + switch (qps) { + case IB_QPS_RESET: + return OCRDMA_QPS_RST; + case IB_QPS_INIT: + return OCRDMA_QPS_INIT; + case IB_QPS_RTR: + return OCRDMA_QPS_RTR; + case IB_QPS_RTS: + return OCRDMA_QPS_RTS; + case IB_QPS_SQD: + return OCRDMA_QPS_SQD; + case IB_QPS_SQE: + return OCRDMA_QPS_SQE; + case IB_QPS_ERR: + return OCRDMA_QPS_ERR; + }; + return OCRDMA_QPS_ERR; +} + +static int ocrdma_get_mbx_errno(u32 status) +{ + int err_num = -EFAULT; + u8 mbox_status = (status & OCRDMA_MBX_RSP_STATUS_MASK) >> + OCRDMA_MBX_RSP_STATUS_SHIFT; + u8 add_status = (status & OCRDMA_MBX_RSP_ASTATUS_MASK) >> + OCRDMA_MBX_RSP_ASTATUS_SHIFT; + + switch (mbox_status) { + case OCRDMA_MBX_STATUS_OOR: + case OCRDMA_MBX_STATUS_MAX_QP_EXCEEDS: + err_num = -EAGAIN; + break; + + case OCRDMA_MBX_STATUS_INVALID_PD: + case OCRDMA_MBX_STATUS_INVALID_CQ: + case OCRDMA_MBX_STATUS_INVALID_SRQ_ID: + case OCRDMA_MBX_STATUS_INVALID_QP: + case OCRDMA_MBX_STATUS_INVALID_CHANGE: + case OCRDMA_MBX_STATUS_MTU_EXCEEDS: + case OCRDMA_MBX_STATUS_INVALID_RNR_NAK_TIMER: + case OCRDMA_MBX_STATUS_PKEY_INDEX_INVALID: + case OCRDMA_MBX_STATUS_PKEY_INDEX_EXCEEDS: + case OCRDMA_MBX_STATUS_ILLEGAL_FIELD: + case OCRDMA_MBX_STATUS_INVALID_PBL_ENTRY: + case OCRDMA_MBX_STATUS_INVALID_LKEY: + case OCRDMA_MBX_STATUS_INVALID_VA: + case OCRDMA_MBX_STATUS_INVALID_LENGTH: + case OCRDMA_MBX_STATUS_INVALID_FBO: + case OCRDMA_MBX_STATUS_INVALID_ACC_RIGHTS: + case OCRDMA_MBX_STATUS_INVALID_PBE_SIZE: + case OCRDMA_MBX_STATUS_ATOMIC_OPS_UNSUP: + case OCRDMA_MBX_STATUS_SRQ_ERROR: + case OCRDMA_MBX_STATUS_SRQ_SIZE_UNDERUNS: + err_num = -EINVAL; + break; + + case OCRDMA_MBX_STATUS_PD_IN |