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linux/drivers/infiniband/hw/mthca/mthca_dev.h
Arnd Bergmann fbb7dc5db6 RDMa/mthca: Work around -Wenum-conversion warning 
gcc points out a suspicious mixing of enum types in a function that
converts from MTHCA_OPCODE_* values to IB_WC_* values:

drivers/infiniband/hw/mthca/mthca_cq.c: In function 'mthca_poll_one':
drivers/infiniband/hw/mthca/mthca_cq.c:607:21: warning: implicit conversion from 'enum <anonymous>' to 'enum ib_wc_opcode' [-Wenum-conversion]
  607 |    entry->opcode    = MTHCA_OPCODE_INVALID;

Nothing seems to ever check for MTHCA_OPCODE_INVALID again, no idea if
this is meaningful, but it seems harmless as it deals with an invalid
input.

Remove MTHCA_OPCODE_INVALID and set the ib_wc_opcode to 0xFF, which is
still bogus, but at least doesn't make compiler warnings.

Fixes: 2a4443a699 ("[PATCH] IB/mthca: fill in opcode field for send completions")
Link: https://lore.kernel.org/r/20201026211311.3887003-1-arnd@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2020-11-12 12:47:21 -04:00

586 lines
18 KiB
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/*
* Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
* Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
* Copyright (c) 2005, 2006 Cisco Systems. All rights reserved.
* Copyright (c) 2005 Mellanox Technologies. All rights reserved.
* Copyright (c) 2004 Voltaire, Inc. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef MTHCA_DEV_H
#define MTHCA_DEV_H
#include <linux/spinlock.h>
#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/dma-mapping.h>
#include <linux/timer.h>
#include <linux/mutex.h>
#include <linux/list.h>
#include <linux/semaphore.h>
#include "mthca_provider.h"
#include "mthca_doorbell.h"
#define DRV_NAME "ib_mthca"
#define PFX DRV_NAME ": "
#define DRV_VERSION "1.0"
#define DRV_RELDATE "April 4, 2008"
enum {
MTHCA_FLAG_DDR_HIDDEN = 1 << 1,
MTHCA_FLAG_SRQ = 1 << 2,
MTHCA_FLAG_MSI_X = 1 << 3,
MTHCA_FLAG_NO_LAM = 1 << 4,
MTHCA_FLAG_FMR = 1 << 5,
MTHCA_FLAG_MEMFREE = 1 << 6,
MTHCA_FLAG_PCIE = 1 << 7,
MTHCA_FLAG_SINAI_OPT = 1 << 8
};
enum {
MTHCA_MAX_PORTS = 2
};
enum {
MTHCA_BOARD_ID_LEN = 64
};
enum {
MTHCA_EQ_CONTEXT_SIZE = 0x40,
MTHCA_CQ_CONTEXT_SIZE = 0x40,
MTHCA_QP_CONTEXT_SIZE = 0x200,
MTHCA_RDB_ENTRY_SIZE = 0x20,
MTHCA_AV_SIZE = 0x20,
MTHCA_MGM_ENTRY_SIZE = 0x100,
/* Arbel FW gives us these, but we need them for Tavor */
MTHCA_MPT_ENTRY_SIZE = 0x40,
MTHCA_MTT_SEG_SIZE = 0x40,
MTHCA_QP_PER_MGM = 4 * (MTHCA_MGM_ENTRY_SIZE / 16 - 2)
};
enum {
MTHCA_EQ_CMD,
MTHCA_EQ_ASYNC,
MTHCA_EQ_COMP,
MTHCA_NUM_EQ
};
enum {
MTHCA_OPCODE_NOP = 0x00,
MTHCA_OPCODE_RDMA_WRITE = 0x08,
MTHCA_OPCODE_RDMA_WRITE_IMM = 0x09,
MTHCA_OPCODE_SEND = 0x0a,
MTHCA_OPCODE_SEND_IMM = 0x0b,
MTHCA_OPCODE_RDMA_READ = 0x10,
MTHCA_OPCODE_ATOMIC_CS = 0x11,
MTHCA_OPCODE_ATOMIC_FA = 0x12,
MTHCA_OPCODE_BIND_MW = 0x18,
};
enum {
MTHCA_CMD_USE_EVENTS = 1 << 0,
MTHCA_CMD_POST_DOORBELLS = 1 << 1
};
enum {
MTHCA_CMD_NUM_DBELL_DWORDS = 8
};
struct mthca_cmd {
struct dma_pool *pool;
struct mutex hcr_mutex;
struct semaphore poll_sem;
struct semaphore event_sem;
int max_cmds;
spinlock_t context_lock;
int free_head;
struct mthca_cmd_context *context;
u16 token_mask;
u32 flags;
void __iomem *dbell_map;
u16 dbell_offsets[MTHCA_CMD_NUM_DBELL_DWORDS];
};
struct mthca_limits {
int num_ports;
int vl_cap;
int mtu_cap;
int gid_table_len;
int pkey_table_len;
int local_ca_ack_delay;
int num_uars;
int max_sg;
int num_qps;
int max_wqes;
int max_desc_sz;
int max_qp_init_rdma;
int reserved_qps;
int num_srqs;
int max_srq_wqes;
int max_srq_sge;
int reserved_srqs;
int num_eecs;
int reserved_eecs;
int num_cqs;
int max_cqes;
int reserved_cqs;
int num_eqs;
int reserved_eqs;
int num_mpts;
int num_mtt_segs;
int mtt_seg_size;
int fmr_reserved_mtts;
int reserved_mtts;
int reserved_mrws;
int reserved_uars;
int num_mgms;
int num_amgms;
int reserved_mcgs;
int num_pds;
int reserved_pds;
u32 page_size_cap;
u32 flags;
u16 stat_rate_support;
u8 port_width_cap;
};
struct mthca_alloc {
u32 last;
u32 top;
u32 max;
u32 mask;
spinlock_t lock;
unsigned long *table;
};
struct mthca_array {
struct {
void **page;
int used;
} *page_list;
};
struct mthca_uar_table {
struct mthca_alloc alloc;
u64 uarc_base;
int uarc_size;
};
struct mthca_pd_table {
struct mthca_alloc alloc;
};
struct mthca_buddy {
unsigned long **bits;
int *num_free;
int max_order;
spinlock_t lock;
};
struct mthca_mr_table {
struct mthca_alloc mpt_alloc;
struct mthca_buddy mtt_buddy;
struct mthca_buddy *fmr_mtt_buddy;
u64 mtt_base;
u64 mpt_base;
struct mthca_icm_table *mtt_table;
struct mthca_icm_table *mpt_table;
struct {
void __iomem *mpt_base;
void __iomem *mtt_base;
struct mthca_buddy mtt_buddy;
} tavor_fmr;
};
struct mthca_eq_table {
struct mthca_alloc alloc;
void __iomem *clr_int;
u32 clr_mask;
u32 arm_mask;
struct mthca_eq eq[MTHCA_NUM_EQ];
u64 icm_virt;
struct page *icm_page;
dma_addr_t icm_dma;
int have_irq;
u8 inta_pin;
};
struct mthca_cq_table {
struct mthca_alloc alloc;
spinlock_t lock;
struct mthca_array cq;
struct mthca_icm_table *table;
};
struct mthca_srq_table {
struct mthca_alloc alloc;
spinlock_t lock;
struct mthca_array srq;
struct mthca_icm_table *table;
};
struct mthca_qp_table {
struct mthca_alloc alloc;
u32 rdb_base;
int rdb_shift;
int sqp_start;
spinlock_t lock;
struct mthca_array qp;
struct mthca_icm_table *qp_table;
struct mthca_icm_table *eqp_table;
struct mthca_icm_table *rdb_table;
};
struct mthca_av_table {
struct dma_pool *pool;
int num_ddr_avs;
u64 ddr_av_base;
void __iomem *av_map;
struct mthca_alloc alloc;
};
struct mthca_mcg_table {
struct mutex mutex;
struct mthca_alloc alloc;
struct mthca_icm_table *table;
};
struct mthca_catas_err {
u64 addr;
u32 __iomem *map;
u32 size;
struct timer_list timer;
struct list_head list;
};
extern struct mutex mthca_device_mutex;
struct mthca_dev {
struct ib_device ib_dev;
struct pci_dev *pdev;
int hca_type;
unsigned long mthca_flags;
unsigned long device_cap_flags;
u32 rev_id;
char board_id[MTHCA_BOARD_ID_LEN];
/* firmware info */
u64 fw_ver;
union {
struct {
u64 fw_start;
u64 fw_end;
} tavor;
struct {
u64 clr_int_base;
u64 eq_arm_base;
u64 eq_set_ci_base;
struct mthca_icm *fw_icm;
struct mthca_icm *aux_icm;
u16 fw_pages;
} arbel;
} fw;
u64 ddr_start;
u64 ddr_end;
MTHCA_DECLARE_DOORBELL_LOCK(doorbell_lock)
struct mutex cap_mask_mutex;
void __iomem *hcr;
void __iomem *kar;
void __iomem *clr_base;
union {
struct {
void __iomem *ecr_base;
} tavor;
struct {
void __iomem *eq_arm;
void __iomem *eq_set_ci_base;
} arbel;
} eq_regs;
struct mthca_cmd cmd;
struct mthca_limits limits;
struct mthca_uar_table uar_table;
struct mthca_pd_table pd_table;
struct mthca_mr_table mr_table;
struct mthca_eq_table eq_table;
struct mthca_cq_table cq_table;
struct mthca_srq_table srq_table;
struct mthca_qp_table qp_table;
struct mthca_av_table av_table;
struct mthca_mcg_table mcg_table;
struct mthca_catas_err catas_err;
struct mthca_uar driver_uar;
struct mthca_db_table *db_tab;
struct mthca_pd driver_pd;
struct mthca_mr driver_mr;
struct ib_mad_agent *send_agent[MTHCA_MAX_PORTS][2];
struct ib_ah *sm_ah[MTHCA_MAX_PORTS];
spinlock_t sm_lock;
u8 rate[MTHCA_MAX_PORTS];
bool active;
};
#ifdef CONFIG_INFINIBAND_MTHCA_DEBUG
extern int mthca_debug_level;
#define mthca_dbg(mdev, format, arg...) \
do { \
if (mthca_debug_level) \
dev_printk(KERN_DEBUG, &mdev->pdev->dev, format, ## arg); \
} while (0)
#else /* CONFIG_INFINIBAND_MTHCA_DEBUG */
#define mthca_dbg(mdev, format, arg...) do { (void) mdev; } while (0)
#endif /* CONFIG_INFINIBAND_MTHCA_DEBUG */
#define mthca_err(mdev, format, arg...) \
dev_err(&mdev->pdev->dev, format, ## arg)
#define mthca_info(mdev, format, arg...) \
dev_info(&mdev->pdev->dev, format, ## arg)
#define mthca_warn(mdev, format, arg...) \
dev_warn(&mdev->pdev->dev, format, ## arg)
extern void __buggy_use_of_MTHCA_GET(void);
extern void __buggy_use_of_MTHCA_PUT(void);
#define MTHCA_GET(dest, source, offset) \
do { \
void *__p = (char *) (source) + (offset); \
switch (sizeof (dest)) { \
case 1: (dest) = *(u8 *) __p; break; \
case 2: (dest) = be16_to_cpup(__p); break; \
case 4: (dest) = be32_to_cpup(__p); break; \
case 8: (dest) = be64_to_cpup(__p); break; \
default: __buggy_use_of_MTHCA_GET(); \
} \
} while (0)
#define MTHCA_PUT(dest, source, offset) \
do { \
void *__d = ((char *) (dest) + (offset)); \
switch (sizeof(source)) { \
case 1: *(u8 *) __d = (source); break; \
case 2: *(__be16 *) __d = cpu_to_be16(source); break; \
case 4: *(__be32 *) __d = cpu_to_be32(source); break; \
case 8: *(__be64 *) __d = cpu_to_be64(source); break; \
default: __buggy_use_of_MTHCA_PUT(); \
} \
} while (0)
int mthca_reset(struct mthca_dev *mdev);
u32 mthca_alloc(struct mthca_alloc *alloc);
void mthca_free(struct mthca_alloc *alloc, u32 obj);
int mthca_alloc_init(struct mthca_alloc *alloc, u32 num, u32 mask,
u32 reserved);
void mthca_alloc_cleanup(struct mthca_alloc *alloc);
void *mthca_array_get(struct mthca_array *array, int index);
int mthca_array_set(struct mthca_array *array, int index, void *value);
void mthca_array_clear(struct mthca_array *array, int index);
int mthca_array_init(struct mthca_array *array, int nent);
void mthca_array_cleanup(struct mthca_array *array, int nent);
int mthca_buf_alloc(struct mthca_dev *dev, int size, int max_direct,
union mthca_buf *buf, int *is_direct, struct mthca_pd *pd,
int hca_write, struct mthca_mr *mr);
void mthca_buf_free(struct mthca_dev *dev, int size, union mthca_buf *buf,
int is_direct, struct mthca_mr *mr);
int mthca_init_uar_table(struct mthca_dev *dev);
int mthca_init_pd_table(struct mthca_dev *dev);
int mthca_init_mr_table(struct mthca_dev *dev);
int mthca_init_eq_table(struct mthca_dev *dev);
int mthca_init_cq_table(struct mthca_dev *dev);
int mthca_init_srq_table(struct mthca_dev *dev);
int mthca_init_qp_table(struct mthca_dev *dev);
int mthca_init_av_table(struct mthca_dev *dev);
int mthca_init_mcg_table(struct mthca_dev *dev);
void mthca_cleanup_uar_table(struct mthca_dev *dev);
void mthca_cleanup_pd_table(struct mthca_dev *dev);
void mthca_cleanup_mr_table(struct mthca_dev *dev);
void mthca_cleanup_eq_table(struct mthca_dev *dev);
void mthca_cleanup_cq_table(struct mthca_dev *dev);
void mthca_cleanup_srq_table(struct mthca_dev *dev);
void mthca_cleanup_qp_table(struct mthca_dev *dev);
void mthca_cleanup_av_table(struct mthca_dev *dev);
void mthca_cleanup_mcg_table(struct mthca_dev *dev);
int mthca_register_device(struct mthca_dev *dev);
void mthca_unregister_device(struct mthca_dev *dev);
void mthca_start_catas_poll(struct mthca_dev *dev);
void mthca_stop_catas_poll(struct mthca_dev *dev);
int __mthca_restart_one(struct pci_dev *pdev);
int mthca_catas_init(void);
void mthca_catas_cleanup(void);
int mthca_uar_alloc(struct mthca_dev *dev, struct mthca_uar *uar);
void mthca_uar_free(struct mthca_dev *dev, struct mthca_uar *uar);
int mthca_pd_alloc(struct mthca_dev *dev, int privileged, struct mthca_pd *pd);
void mthca_pd_free(struct mthca_dev *dev, struct mthca_pd *pd);
int mthca_write_mtt_size(struct mthca_dev *dev);
struct mthca_mtt *mthca_alloc_mtt(struct mthca_dev *dev, int size);
void mthca_free_mtt(struct mthca_dev *dev, struct mthca_mtt *mtt);
int mthca_write_mtt(struct mthca_dev *dev, struct mthca_mtt *mtt,
int start_index, u64 *buffer_list, int list_len);
int mthca_mr_alloc(struct mthca_dev *dev, u32 pd, int buffer_size_shift,
u64 iova, u64 total_size, u32 access, struct mthca_mr *mr);
int mthca_mr_alloc_notrans(struct mthca_dev *dev, u32 pd,
u32 access, struct mthca_mr *mr);
int mthca_mr_alloc_phys(struct mthca_dev *dev, u32 pd,
u64 *buffer_list, int buffer_size_shift,
int list_len, u64 iova, u64 total_size,
u32 access, struct mthca_mr *mr);
void mthca_free_mr(struct mthca_dev *dev, struct mthca_mr *mr);
int mthca_map_eq_icm(struct mthca_dev *dev, u64 icm_virt);
void mthca_unmap_eq_icm(struct mthca_dev *dev);
int mthca_poll_cq(struct ib_cq *ibcq, int num_entries,
struct ib_wc *entry);
int mthca_tavor_arm_cq(struct ib_cq *cq, enum ib_cq_notify_flags flags);
int mthca_arbel_arm_cq(struct ib_cq *cq, enum ib_cq_notify_flags flags);
int mthca_init_cq(struct mthca_dev *dev, int nent,
struct mthca_ucontext *ctx, u32 pdn,
struct mthca_cq *cq);
void mthca_free_cq(struct mthca_dev *dev,
struct mthca_cq *cq);
void mthca_cq_completion(struct mthca_dev *dev, u32 cqn);
void mthca_cq_event(struct mthca_dev *dev, u32 cqn,
enum ib_event_type event_type);
void mthca_cq_clean(struct mthca_dev *dev, struct mthca_cq *cq, u32 qpn,
struct mthca_srq *srq);
void mthca_cq_resize_copy_cqes(struct mthca_cq *cq);
int mthca_alloc_cq_buf(struct mthca_dev *dev, struct mthca_cq_buf *buf, int nent);
void mthca_free_cq_buf(struct mthca_dev *dev, struct mthca_cq_buf *buf, int cqe);
int mthca_alloc_srq(struct mthca_dev *dev, struct mthca_pd *pd,
struct ib_srq_attr *attr, struct mthca_srq *srq,
struct ib_udata *udata);
void mthca_free_srq(struct mthca_dev *dev, struct mthca_srq *srq);
int mthca_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,
enum ib_srq_attr_mask attr_mask, struct ib_udata *udata);
int mthca_query_srq(struct ib_srq *srq, struct ib_srq_attr *srq_attr);
int mthca_max_srq_sge(struct mthca_dev *dev);
void mthca_srq_event(struct mthca_dev *dev, u32 srqn,
enum ib_event_type event_type);
void mthca_free_srq_wqe(struct mthca_srq *srq, u32 wqe_addr);
int mthca_tavor_post_srq_recv(struct ib_srq *srq, const struct ib_recv_wr *wr,
const struct ib_recv_wr **bad_wr);
int mthca_arbel_post_srq_recv(struct ib_srq *srq, const struct ib_recv_wr *wr,
const struct ib_recv_wr **bad_wr);
void mthca_qp_event(struct mthca_dev *dev, u32 qpn,
enum ib_event_type event_type);
int mthca_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int qp_attr_mask,
struct ib_qp_init_attr *qp_init_attr);
int mthca_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask,
struct ib_udata *udata);
int mthca_tavor_post_send(struct ib_qp *ibqp, const struct ib_send_wr *wr,
const struct ib_send_wr **bad_wr);
int mthca_tavor_post_receive(struct ib_qp *ibqp, const struct ib_recv_wr *wr,
const struct ib_recv_wr **bad_wr);
int mthca_arbel_post_send(struct ib_qp *ibqp, const struct ib_send_wr *wr,
const struct ib_send_wr **bad_wr);
int mthca_arbel_post_receive(struct ib_qp *ibqp, const struct ib_recv_wr *wr,
const struct ib_recv_wr **bad_wr);
void mthca_free_err_wqe(struct mthca_dev *dev, struct mthca_qp *qp, int is_send,
int index, int *dbd, __be32 *new_wqe);
int mthca_alloc_qp(struct mthca_dev *dev,
struct mthca_pd *pd,
struct mthca_cq *send_cq,
struct mthca_cq *recv_cq,
enum ib_qp_type type,
enum ib_sig_type send_policy,
struct ib_qp_cap *cap,
struct mthca_qp *qp,
struct ib_udata *udata);
int mthca_alloc_sqp(struct mthca_dev *dev,
struct mthca_pd *pd,
struct mthca_cq *send_cq,
struct mthca_cq *recv_cq,
enum ib_sig_type send_policy,
struct ib_qp_cap *cap,
int qpn,
int port,
struct mthca_qp *qp,
struct ib_udata *udata);
void mthca_free_qp(struct mthca_dev *dev, struct mthca_qp *qp);
int mthca_create_ah(struct mthca_dev *dev,
struct mthca_pd *pd,
struct rdma_ah_attr *ah_attr,
struct mthca_ah *ah);
int mthca_destroy_ah(struct mthca_dev *dev, struct mthca_ah *ah);
int mthca_read_ah(struct mthca_dev *dev, struct mthca_ah *ah,
struct ib_ud_header *header);
int mthca_ah_query(struct ib_ah *ibah, struct rdma_ah_attr *attr);
int mthca_ah_grh_present(struct mthca_ah *ah);
u8 mthca_get_rate(struct mthca_dev *dev, int static_rate, u8 port);
enum ib_rate mthca_rate_to_ib(struct mthca_dev *dev, u8 mthca_rate, u8 port);
int mthca_multicast_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid);
int mthca_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid);
int mthca_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,
const struct ib_wc *in_wc, const struct ib_grh *in_grh,
const struct ib_mad *in, struct ib_mad *out,
size_t *out_mad_size, u16 *out_mad_pkey_index);
int mthca_create_agents(struct mthca_dev *dev);
void mthca_free_agents(struct mthca_dev *dev);
static inline struct mthca_dev *to_mdev(struct ib_device *ibdev)
{
return container_of(ibdev, struct mthca_dev, ib_dev);
}
static inline int mthca_is_memfree(struct mthca_dev *dev)
{
return dev->mthca_flags & MTHCA_FLAG_MEMFREE;
}
#endif /* MTHCA_DEV_H */
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