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linux-next/drivers/infiniband/hw/mthca/mthca_cmd.h
Goldwyn Rodrigues cdb73db0b6 IB/mthca: Stop returning separate error and status from FW commands 
Instead of having firmware command functions return an error and also
a status, leading to code like:

	err = mthca_FW_COMMAND(..., &status);
	if (err)
		goto out;
        if (status) {
		err = -E...;
		goto out;
	}

all over the place, just handle the FW status inside the FW command
handling code (the way mlx4 does it), so we can simply write:

	err = mthca_FW_COMMAND(...);
	if (err)
		goto out;

In addition to simplifying the source code, this also saves a healthy
chunk of text:

    add/remove: 0/0 grow/shrink: 10/88 up/down: 510/-3357 (-2847)
    function                                     old     new   delta
    static.trans_table                           324     584    +260
    mthca_cmd_poll                               352     477    +125
    mthca_cmd_wait                               511     567     +56
    mthca_table_put                              213     240     +27
    mthca_cleanup_db_tab                         372     387     +15
    __mthca_remove_one                           314     323      +9
    mthca_cleanup_user_db_tab                    275     283      +8
    __mthca_init_one                            1738    1746      +8
    mthca_cleanup                                 20      21      +1
    mthca_MAD_IFC                               1081    1082      +1
    mthca_MGID_HASH                               43      40      -3
    mthca_MAP_ICM_AUX                             23      20      -3
    mthca_MAP_ICM                                 19      16      -3
    mthca_MAP_FA                                  23      20      -3
    mthca_READ_MGM                                43      38      -5
    mthca_QUERY_SRQ                               43      38      -5
    mthca_QUERY_QP                                59      54      -5
    mthca_HW2SW_SRQ                               43      38      -5
    mthca_HW2SW_MPT                               60      55      -5
    mthca_HW2SW_EQ                                43      38      -5
    mthca_HW2SW_CQ                                43      38      -5
    mthca_free_icm_table                         120     114      -6
    mthca_query_srq                              214     206      -8
    mthca_free_qp                                662     654      -8
    mthca_cmd                                     38      28     -10
    mthca_alloc_db                              1321    1311     -10
    mthca_setup_hca                             1067    1055     -12
    mthca_WRITE_MTT                               35      22     -13
    mthca_WRITE_MGM                               40      27     -13
    mthca_UNMAP_ICM_AUX                           36      23     -13
    mthca_UNMAP_FA                                36      23     -13
    mthca_SYS_DIS                                 36      23     -13
    mthca_SYNC_TPT                                36      23     -13
    mthca_SW2HW_SRQ                               35      22     -13
    mthca_SW2HW_MPT                               35      22     -13
    mthca_SW2HW_EQ                                35      22     -13
    mthca_SW2HW_CQ                                35      22     -13
    mthca_RUN_FW                                  36      23     -13
    mthca_DISABLE_LAM                             36      23     -13
    mthca_CLOSE_IB                                36      23     -13
    mthca_CLOSE_HCA                               38      25     -13
    mthca_ARM_SRQ                                 39      26     -13
    mthca_free_icms                              178     164     -14
    mthca_QUERY_DDR                              389     375     -14
    mthca_resize_cq                             1063    1048     -15
    mthca_unmap_eq_icm                           123     107     -16
    mthca_map_eq_icm                             396     380     -16
    mthca_cmd_box                                 90      74     -16
    mthca_SET_IB                                 433     417     -16
    mthca_RESIZE_CQ                              369     353     -16
    mthca_MAP_ICM_page                           240     224     -16
    mthca_MAP_EQ                                 183     167     -16
    mthca_INIT_IB                                473     457     -16
    mthca_INIT_HCA                               745     729     -16
    mthca_map_user_db                            816     798     -18
    mthca_SYS_EN                                 157     139     -18
    mthca_cleanup_qp_table                        78      59     -19
    mthca_cleanup_eq_table                       168     149     -19
    mthca_UNMAP_ICM                              143     121     -22
    mthca_modify_srq                             172     149     -23
    mthca_unmap_fmr                              198     174     -24
    mthca_query_qp                               814     790     -24
    mthca_query_pkey                             343     319     -24
    mthca_SET_ICM_SIZE                            34      10     -24
    mthca_QUERY_DEV_LIM                         1870    1846     -24
    mthca_map_cmd                               1130    1105     -25
    mthca_ENABLE_LAM                             401     375     -26
    mthca_modify_port                            247     220     -27
    mthca_query_device                           884     850     -34
    mthca_NOP                                     75      41     -34
    mthca_table_get                              287     249     -38
    mthca_init_qp_table                          333     293     -40
    mthca_MODIFY_QP                              348     308     -40
    mthca_close_hca                              131      89     -42
    mthca_free_eq                                435     390     -45
    mthca_query_port                             755     705     -50
    mthca_free_cq                                581     528     -53
    mthca_alloc_icm_table                        578     524     -54
    mthca_multicast_attach                      1041     986     -55
    mthca_init_hca                               326     271     -55
    mthca_query_gid                              487     431     -56
    mthca_free_srq                               524     468     -56
    mthca_free_mr                                168     111     -57
    mthca_create_eq                             1560    1501     -59
    mthca_multicast_detach                       790     728     -62
    mthca_write_mtt                              918     854     -64
    mthca_register_device                       1406    1342     -64
    mthca_fmr_alloc                              947     883     -64
    mthca_mr_alloc                               652     582     -70
    mthca_process_mad                           1242    1164     -78
    mthca_dev_lim                                910     830     -80
    find_mgm                                     482     400     -82
    mthca_modify_qp                             3852    3753     -99
    mthca_init_cq                               1281    1181    -100
    mthca_alloc_srq                             1719    1610    -109
    mthca_init_eq_table                         1807    1679    -128
    mthca_init_tavor                             761     491    -270
    mthca_init_arbel                            2617    2098    -519

Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.de>
2011-07-15 13:33:20 -07:00

326 lines
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/*
* Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
* Copyright (c) 2005 Mellanox Technologies. All rights reserved.
* Copyright (c) 2006 Cisco Systems. 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_CMD_H
#define MTHCA_CMD_H
#include <rdma/ib_verbs.h>
#define MTHCA_MAILBOX_SIZE 4096
enum {
/* command completed successfully: */
MTHCA_CMD_STAT_OK = 0x00,
/* Internal error (such as a bus error) occurred while processing command: */
MTHCA_CMD_STAT_INTERNAL_ERR = 0x01,
/* Operation/command not supported or opcode modifier not supported: */
MTHCA_CMD_STAT_BAD_OP = 0x02,
/* Parameter not supported or parameter out of range: */
MTHCA_CMD_STAT_BAD_PARAM = 0x03,
/* System not enabled or bad system state: */
MTHCA_CMD_STAT_BAD_SYS_STATE = 0x04,
/* Attempt to access reserved or unallocaterd resource: */
MTHCA_CMD_STAT_BAD_RESOURCE = 0x05,
/* Requested resource is currently executing a command, or is otherwise busy: */
MTHCA_CMD_STAT_RESOURCE_BUSY = 0x06,
/* memory error: */
MTHCA_CMD_STAT_DDR_MEM_ERR = 0x07,
/* Required capability exceeds device limits: */
MTHCA_CMD_STAT_EXCEED_LIM = 0x08,
/* Resource is not in the appropriate state or ownership: */
MTHCA_CMD_STAT_BAD_RES_STATE = 0x09,
/* Index out of range: */
MTHCA_CMD_STAT_BAD_INDEX = 0x0a,
/* FW image corrupted: */
MTHCA_CMD_STAT_BAD_NVMEM = 0x0b,
/* Attempt to modify a QP/EE which is not in the presumed state: */
MTHCA_CMD_STAT_BAD_QPEE_STATE = 0x10,
/* Bad segment parameters (Address/Size): */
MTHCA_CMD_STAT_BAD_SEG_PARAM = 0x20,
/* Memory Region has Memory Windows bound to: */
MTHCA_CMD_STAT_REG_BOUND = 0x21,
/* HCA local attached memory not present: */
MTHCA_CMD_STAT_LAM_NOT_PRE = 0x22,
/* Bad management packet (silently discarded): */
MTHCA_CMD_STAT_BAD_PKT = 0x30,
/* More outstanding CQEs in CQ than new CQ size: */
MTHCA_CMD_STAT_BAD_SIZE = 0x40
};
enum {
MTHCA_TRANS_INVALID = 0,
MTHCA_TRANS_RST2INIT,
MTHCA_TRANS_INIT2INIT,
MTHCA_TRANS_INIT2RTR,
MTHCA_TRANS_RTR2RTS,
MTHCA_TRANS_RTS2RTS,
MTHCA_TRANS_SQERR2RTS,
MTHCA_TRANS_ANY2ERR,
MTHCA_TRANS_RTS2SQD,
MTHCA_TRANS_SQD2SQD,
MTHCA_TRANS_SQD2RTS,
MTHCA_TRANS_ANY2RST,
};
enum {
DEV_LIM_FLAG_RC = 1 << 0,
DEV_LIM_FLAG_UC = 1 << 1,
DEV_LIM_FLAG_UD = 1 << 2,
DEV_LIM_FLAG_RD = 1 << 3,
DEV_LIM_FLAG_RAW_IPV6 = 1 << 4,
DEV_LIM_FLAG_RAW_ETHER = 1 << 5,
DEV_LIM_FLAG_SRQ = 1 << 6,
DEV_LIM_FLAG_IPOIB_CSUM = 1 << 7,
DEV_LIM_FLAG_BAD_PKEY_CNTR = 1 << 8,
DEV_LIM_FLAG_BAD_QKEY_CNTR = 1 << 9,
DEV_LIM_FLAG_MW = 1 << 16,
DEV_LIM_FLAG_AUTO_PATH_MIG = 1 << 17,
DEV_LIM_FLAG_ATOMIC = 1 << 18,
DEV_LIM_FLAG_RAW_MULTI = 1 << 19,
DEV_LIM_FLAG_UD_AV_PORT_ENFORCE = 1 << 20,
DEV_LIM_FLAG_UD_MULTI = 1 << 21,
};
struct mthca_mailbox {
dma_addr_t dma;
void *buf;
};
struct mthca_dev_lim {
int max_srq_sz;
int max_qp_sz;
int reserved_qps;
int max_qps;
int reserved_srqs;
int max_srqs;
int reserved_eecs;
int max_eecs;
int max_cq_sz;
int reserved_cqs;
int max_cqs;
int max_mpts;
int reserved_eqs;
int max_eqs;
int reserved_mtts;
int max_mrw_sz;
int reserved_mrws;
int max_mtt_seg;
int max_requester_per_qp;
int max_responder_per_qp;
int max_rdma_global;
int local_ca_ack_delay;
int max_mtu;
int max_port_width;
int max_vl;
int num_ports;
int max_gids;
u16 stat_rate_support;
int max_pkeys;
u32 flags;
int reserved_uars;
int uar_size;
int min_page_sz;
int max_sg;
int max_desc_sz;
int max_qp_per_mcg;
int reserved_mgms;
int max_mcgs;
int reserved_pds;
int max_pds;
int reserved_rdds;
int max_rdds;
int eec_entry_sz;
int qpc_entry_sz;
int eeec_entry_sz;
int eqpc_entry_sz;
int eqc_entry_sz;
int cqc_entry_sz;
int srq_entry_sz;
int uar_scratch_entry_sz;
int mpt_entry_sz;
union {
struct {
int max_avs;
} tavor;
struct {
int resize_srq;
int max_pbl_sz;
u8 bmme_flags;
u32 reserved_lkey;
int lam_required;
u64 max_icm_sz;
} arbel;
} hca;
};
struct mthca_adapter {
u32 vendor_id;
u32 device_id;
u32 revision_id;
char board_id[MTHCA_BOARD_ID_LEN];
u8 inta_pin;
};
struct mthca_init_hca_param {
u64 qpc_base;
u64 eec_base;
u64 srqc_base;
u64 cqc_base;
u64 eqpc_base;
u64 eeec_base;
u64 eqc_base;
u64 rdb_base;
u64 mc_base;
u64 mpt_base;
u64 mtt_base;
u64 uar_scratch_base;
u64 uarc_base;
u16 log_mc_entry_sz;
u16 mc_hash_sz;
u8 log_num_qps;
u8 log_num_eecs;
u8 log_num_srqs;
u8 log_num_cqs;
u8 log_num_eqs;
u8 log_mc_table_sz;
u8 mtt_seg_sz;
u8 log_mpt_sz;
u8 log_uar_sz;
u8 log_uarc_sz;
};
struct mthca_init_ib_param {
int port_width;
int vl_cap;
int mtu_cap;
u16 gid_cap;
u16 pkey_cap;
int set_guid0;
u64 guid0;
int set_node_guid;
u64 node_guid;
int set_si_guid;
u64 si_guid;
};
struct mthca_set_ib_param {
int set_si_guid;
int reset_qkey_viol;
u64 si_guid;
u32 cap_mask;
};
int mthca_cmd_init(struct mthca_dev *dev);
void mthca_cmd_cleanup(struct mthca_dev *dev);
int mthca_cmd_use_events(struct mthca_dev *dev);
void mthca_cmd_use_polling(struct mthca_dev *dev);
void mthca_cmd_event(struct mthca_dev *dev, u16 token,
u8 status, u64 out_param);
struct mthca_mailbox *mthca_alloc_mailbox(struct mthca_dev *dev,
gfp_t gfp_mask);
void mthca_free_mailbox(struct mthca_dev *dev, struct mthca_mailbox *mailbox);
int mthca_SYS_EN(struct mthca_dev *dev);
int mthca_SYS_DIS(struct mthca_dev *dev);
int mthca_MAP_FA(struct mthca_dev *dev, struct mthca_icm *icm);
int mthca_UNMAP_FA(struct mthca_dev *dev);
int mthca_RUN_FW(struct mthca_dev *dev);
int mthca_QUERY_FW(struct mthca_dev *dev);
int mthca_ENABLE_LAM(struct mthca_dev *dev);
int mthca_DISABLE_LAM(struct mthca_dev *dev);
int mthca_QUERY_DDR(struct mthca_dev *dev);
int mthca_QUERY_DEV_LIM(struct mthca_dev *dev,
struct mthca_dev_lim *dev_lim);
int mthca_QUERY_ADAPTER(struct mthca_dev *dev,
struct mthca_adapter *adapter);
int mthca_INIT_HCA(struct mthca_dev *dev,
struct mthca_init_hca_param *param);
int mthca_INIT_IB(struct mthca_dev *dev,
struct mthca_init_ib_param *param,
int port);
int mthca_CLOSE_IB(struct mthca_dev *dev, int port);
int mthca_CLOSE_HCA(struct mthca_dev *dev, int panic);
int mthca_SET_IB(struct mthca_dev *dev, struct mthca_set_ib_param *param,
int port);
int mthca_MAP_ICM(struct mthca_dev *dev, struct mthca_icm *icm, u64 virt);
int mthca_MAP_ICM_page(struct mthca_dev *dev, u64 dma_addr, u64 virt);
int mthca_UNMAP_ICM(struct mthca_dev *dev, u64 virt, u32 page_count);
int mthca_MAP_ICM_AUX(struct mthca_dev *dev, struct mthca_icm *icm);
int mthca_UNMAP_ICM_AUX(struct mthca_dev *dev);
int mthca_SET_ICM_SIZE(struct mthca_dev *dev, u64 icm_size, u64 *aux_pages);
int mthca_SW2HW_MPT(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
int mpt_index);
int mthca_HW2SW_MPT(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
int mpt_index);
int mthca_WRITE_MTT(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
int num_mtt);
int mthca_SYNC_TPT(struct mthca_dev *dev);
int mthca_MAP_EQ(struct mthca_dev *dev, u64 event_mask, int unmap,
int eq_num);
int mthca_SW2HW_EQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
int eq_num);
int mthca_HW2SW_EQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
int eq_num);
int mthca_SW2HW_CQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
int cq_num);
int mthca_HW2SW_CQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
int cq_num);
int mthca_RESIZE_CQ(struct mthca_dev *dev, int cq_num, u32 lkey, u8 log_size);
int mthca_SW2HW_SRQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
int srq_num);
int mthca_HW2SW_SRQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
int srq_num);
int mthca_QUERY_SRQ(struct mthca_dev *dev, u32 num,
struct mthca_mailbox *mailbox);
int mthca_ARM_SRQ(struct mthca_dev *dev, int srq_num, int limit);
int mthca_MODIFY_QP(struct mthca_dev *dev, enum ib_qp_state cur,
enum ib_qp_state next, u32 num, int is_ee,
struct mthca_mailbox *mailbox, u32 optmask);
int mthca_QUERY_QP(struct mthca_dev *dev, u32 num, int is_ee,
struct mthca_mailbox *mailbox);
int mthca_CONF_SPECIAL_QP(struct mthca_dev *dev, int type, u32 qpn);
int mthca_MAD_IFC(struct mthca_dev *dev, int ignore_mkey, int ignore_bkey,
int port, struct ib_wc *in_wc, struct ib_grh *in_grh,
void *in_mad, void *response_mad);
int mthca_READ_MGM(struct mthca_dev *dev, int index,
struct mthca_mailbox *mailbox);
int mthca_WRITE_MGM(struct mthca_dev *dev, int index,
struct mthca_mailbox *mailbox);
int mthca_MGID_HASH(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
u16 *hash);
int mthca_NOP(struct mthca_dev *dev);
#endif /* MTHCA_CMD_H */
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