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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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[SCSI] bfa: Add support for IO profiling.
- Made changes to support IO profiling. - Added support to configure and query IO profiling info. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
Krishna Gudipati
James Bottomley
parent
f2ee76017b
commit
42a8e6e298
@ -437,6 +437,59 @@ bfa_fcpim_port_iostats(struct bfa_s *bfa,
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return BFA_STATUS_OK;
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}
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void
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bfa_ioim_profile_comp(struct bfa_ioim_s *ioim)
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{
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struct bfa_itnim_latency_s *io_lat =
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&(ioim->itnim->ioprofile.io_latency);
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u32 val, idx;
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val = (u32)(jiffies - ioim->start_time);
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idx = bfa_ioim_get_index(scsi_bufflen((struct scsi_cmnd *)ioim->dio));
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bfa_itnim_ioprofile_update(ioim->itnim, idx);
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io_lat->count[idx]++;
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io_lat->min[idx] = (io_lat->min[idx] < val) ? io_lat->min[idx] : val;
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io_lat->max[idx] = (io_lat->max[idx] > val) ? io_lat->max[idx] : val;
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io_lat->avg[idx] += val;
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}
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void
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bfa_ioim_profile_start(struct bfa_ioim_s *ioim)
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{
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ioim->start_time = jiffies;
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}
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bfa_status_t
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bfa_fcpim_profile_on(struct bfa_s *bfa, u32 time)
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{
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struct bfa_itnim_s *itnim;
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struct bfa_fcpim_s *fcpim = BFA_FCPIM(bfa);
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struct list_head *qe, *qen;
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/* accumulate IO stats from itnim */
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list_for_each_safe(qe, qen, &fcpim->itnim_q) {
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itnim = (struct bfa_itnim_s *) qe;
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bfa_itnim_clear_stats(itnim);
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}
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fcpim->io_profile = BFA_TRUE;
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fcpim->io_profile_start_time = time;
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fcpim->profile_comp = bfa_ioim_profile_comp;
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fcpim->profile_start = bfa_ioim_profile_start;
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return BFA_STATUS_OK;
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}
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bfa_status_t
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bfa_fcpim_profile_off(struct bfa_s *bfa)
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{
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struct bfa_fcpim_s *fcpim = BFA_FCPIM(bfa);
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fcpim->io_profile = BFA_FALSE;
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fcpim->io_profile_start_time = 0;
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fcpim->profile_comp = NULL;
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fcpim->profile_start = NULL;
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return BFA_STATUS_OK;
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}
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u16
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bfa_fcpim_qdepth_get(struct bfa_s *bfa)
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{
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@ -1401,6 +1454,26 @@ bfa_itnim_hold_io(struct bfa_itnim_s *itnim)
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bfa_sm_cmp_state(itnim, bfa_itnim_sm_iocdisable));
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}
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#define bfa_io_lat_clock_res_div HZ
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#define bfa_io_lat_clock_res_mul 1000
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bfa_status_t
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bfa_itnim_get_ioprofile(struct bfa_itnim_s *itnim,
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struct bfa_itnim_ioprofile_s *ioprofile)
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{
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struct bfa_fcpim_s *fcpim = BFA_FCPIM(itnim->bfa);
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if (!fcpim->io_profile)
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return BFA_STATUS_IOPROFILE_OFF;
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itnim->ioprofile.index = BFA_IOBUCKET_MAX;
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itnim->ioprofile.io_profile_start_time =
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bfa_io_profile_start_time(itnim->bfa);
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itnim->ioprofile.clock_res_mul = bfa_io_lat_clock_res_mul;
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itnim->ioprofile.clock_res_div = bfa_io_lat_clock_res_div;
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*ioprofile = itnim->ioprofile;
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return BFA_STATUS_OK;
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}
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void
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bfa_itnim_clear_stats(struct bfa_itnim_s *itnim)
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{
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@ -79,14 +79,22 @@ bfa_ioim_get_index(u32 n) {
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if (n >= (1UL)<<22)
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return BFA_IOBUCKET_MAX - 1;
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n >>= 8;
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if (n >= (1UL)<<16)
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n >>= 16; pos += 16;
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if (n >= 1 << 8)
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n >>= 8; pos += 8;
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if (n >= 1 << 4)
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n >>= 4; pos += 4;
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if (n >= 1 << 2)
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n >>= 2; pos += 2;
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if (n >= (1UL)<<16) {
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n >>= 16;
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pos += 16;
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}
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if (n >= 1 << 8) {
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n >>= 8;
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pos += 8;
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}
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if (n >= 1 << 4) {
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n >>= 4;
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pos += 4;
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}
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if (n >= 1 << 2) {
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n >>= 2;
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pos += 2;
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}
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if (n >= 1 << 1)
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pos += 1;
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@ -297,6 +305,8 @@ bfa_status_t bfa_fcpim_port_iostats(struct bfa_s *bfa,
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struct bfa_itnim_iostats_s *stats, u8 lp_tag);
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void bfa_fcpim_add_stats(struct bfa_itnim_iostats_s *fcpim_stats,
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struct bfa_itnim_iostats_s *itnim_stats);
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bfa_status_t bfa_fcpim_profile_on(struct bfa_s *bfa, u32 time);
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bfa_status_t bfa_fcpim_profile_off(struct bfa_s *bfa);
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#define bfa_fcpim_ioredirect_enabled(__bfa) \
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(((struct bfa_fcpim_s *)(BFA_FCPIM(__bfa)))->ioredirect)
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@ -1977,6 +1977,52 @@ bfad_iocmd_porglog_ctl(struct bfad_s *bfad, void *cmd)
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return 0;
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}
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int
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bfad_iocmd_fcpim_cfg_profile(struct bfad_s *bfad, void *cmd, unsigned int v_cmd)
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{
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struct bfa_bsg_fcpim_profile_s *iocmd =
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(struct bfa_bsg_fcpim_profile_s *)cmd;
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struct timeval tv;
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unsigned long flags;
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do_gettimeofday(&tv);
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spin_lock_irqsave(&bfad->bfad_lock, flags);
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if (v_cmd == IOCMD_FCPIM_PROFILE_ON)
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iocmd->status = bfa_fcpim_profile_on(&bfad->bfa, tv.tv_sec);
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else if (v_cmd == IOCMD_FCPIM_PROFILE_OFF)
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iocmd->status = bfa_fcpim_profile_off(&bfad->bfa);
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spin_unlock_irqrestore(&bfad->bfad_lock, flags);
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return 0;
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}
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static int
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bfad_iocmd_itnim_get_ioprofile(struct bfad_s *bfad, void *cmd)
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{
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struct bfa_bsg_itnim_ioprofile_s *iocmd =
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(struct bfa_bsg_itnim_ioprofile_s *)cmd;
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struct bfa_fcs_lport_s *fcs_port;
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struct bfa_fcs_itnim_s *itnim;
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unsigned long flags;
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spin_lock_irqsave(&bfad->bfad_lock, flags);
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fcs_port = bfa_fcs_lookup_port(&bfad->bfa_fcs,
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iocmd->vf_id, iocmd->lpwwn);
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if (!fcs_port)
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iocmd->status = BFA_STATUS_UNKNOWN_LWWN;
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else {
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itnim = bfa_fcs_itnim_lookup(fcs_port, iocmd->rpwwn);
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if (itnim == NULL)
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iocmd->status = BFA_STATUS_UNKNOWN_RWWN;
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else
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iocmd->status = bfa_itnim_get_ioprofile(
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bfa_fcs_itnim_get_halitn(itnim),
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&iocmd->ioprofile);
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}
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spin_unlock_irqrestore(&bfad->bfad_lock, flags);
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return 0;
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}
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static int
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bfad_iocmd_handler(struct bfad_s *bfad, unsigned int cmd, void *iocmd,
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unsigned int payload_len)
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@ -2238,6 +2284,13 @@ bfad_iocmd_handler(struct bfad_s *bfad, unsigned int cmd, void *iocmd,
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case IOCMD_DEBUG_PORTLOG_CTL:
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rc = bfad_iocmd_porglog_ctl(bfad, iocmd);
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break;
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case IOCMD_FCPIM_PROFILE_ON:
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case IOCMD_FCPIM_PROFILE_OFF:
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rc = bfad_iocmd_fcpim_cfg_profile(bfad, iocmd, cmd);
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break;
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case IOCMD_ITNIM_GET_IOPROFILE:
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rc = bfad_iocmd_itnim_get_ioprofile(bfad, iocmd);
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break;
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default:
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rc = -EINVAL;
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break;
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@ -116,6 +116,9 @@ enum {
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IOCMD_DEBUG_START_DTRC,
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IOCMD_DEBUG_STOP_DTRC,
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IOCMD_DEBUG_PORTLOG_CTL,
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IOCMD_FCPIM_PROFILE_ON,
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IOCMD_FCPIM_PROFILE_OFF,
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IOCMD_ITNIM_GET_IOPROFILE,
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};
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struct bfa_bsg_gen_s {
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@ -132,6 +135,21 @@ struct bfa_bsg_portlogctl_s {
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int inst_no;
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};
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struct bfa_bsg_fcpim_profile_s {
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bfa_status_t status;
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u16 bfad_num;
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u16 rsvd;
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};
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struct bfa_bsg_itnim_ioprofile_s {
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bfa_status_t status;
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u16 bfad_num;
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u16 vf_id;
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wwn_t lpwwn;
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wwn_t rpwwn;
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struct bfa_itnim_ioprofile_s ioprofile;
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};
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struct bfa_bsg_ioc_name_s {
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bfa_status_t status;
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u16 bfad_num;
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