FEX-Emu/linux
1
0
Fork 0
mirror of https://github.com/FEX-Emu/linux.git synced 2024-12-20 08:22:39 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

[SCSI] bfa: add dynamic queue selection

Browse Source 
Add new bfa functionality to support dynamic queue selection (IO redirection).
IO redirection can only be enabled when QoS is disabled.

Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Jing Huang 2010-07-08 19:57:33 -07:00 committed by James Bottomley
parent 4b5e759dca
commit 36d345a703
14 changed files with 117 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/scsi/bfa/bfa_cb_ioim_macros.h
View File

@ -171,6 +171,11 @@ bfa_cb_ioim_get_cdblen(struct bfad_ioim_s *dio)
return cmnd->cmd_len;
}
/**
* Assign queue to be used for the I/O request. This value depends on whether
* the driver wants to use the queues via any specific algorithm. Currently,
* this is not supported.
*/
#define bfa_cb_ioim_get_reqq(__dio) BFA_FALSE
#endif /* __BFA_HCB_IOIM_MACROS_H__ */

24
drivers/scsi/bfa/bfa_fcpim.c
View File

@ -167,4 +167,28 @@ bfa_fcpim_qdepth_get(struct bfa_s *bfa)
return fcpim->q_depth;
}
void
bfa_fcpim_update_ioredirect(struct bfa_s *bfa)
{
bfa_boolean_t ioredirect;
/*
* IO redirection is turned off when QoS is enabled and vice versa
*/
ioredirect = bfa_fcport_is_qos_enabled(bfa) ? BFA_FALSE : BFA_TRUE;
/*
* Notify the bfad module of a possible state change in
* IO redirection capability, due to a QoS state change. bfad will
* check on the support for io redirection and update the
* fcpim's ioredirect state accordingly.
*/
bfa_cb_ioredirect_state_change((void *)(bfa->bfad), ioredirect);
}
void
bfa_fcpim_set_ioredirect(struct bfa_s *bfa, bfa_boolean_t state)
{
struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa);
fcpim->ioredirect = state;
}

5
drivers/scsi/bfa/bfa_fcpim_priv.h
View File

@ -49,7 +49,8 @@ struct bfa_fcpim_mod_s {
int num_tskim_reqs;
u32 path_tov;
u16 q_depth;
u16 rsvd;
u8 reqq; /* Request queue to be used */
u8 rsvd;
struct list_head itnim_q; /* queue of active itnim */
struct list_head ioim_free_q; /* free IO resources */
struct list_head ioim_resfree_q; /* IOs waiting for f/w */
@ -58,6 +59,7 @@ struct bfa_fcpim_mod_s {
u32 ios_active; /* current active IOs */
u32 delay_comp;
struct bfa_fcpim_stats_s stats;
bfa_boolean_t ioredirect;
};
struct bfa_ioim_s;
@ -82,6 +84,7 @@ struct bfa_ioim_s {
struct bfa_cb_qe_s hcb_qe; /* bfa callback qelem */
bfa_cb_cbfn_t io_cbfn; /* IO completion handler */
struct bfa_ioim_sp_s *iosp; /* slow-path IO handling */
u8 reqq; /* Request queue for I/O */
};
struct bfa_ioim_sp_s {

13
drivers/scsi/bfa/bfa_fcport.c
View File

@ -1857,8 +1857,13 @@ bfa_fcport_cfg_qos(struct bfa_s *bfa, bfa_boolean_t on_off)
bfa_trc(bfa, ioc_type);
if (ioc_type == BFA_IOC_TYPE_FC)
if (ioc_type == BFA_IOC_TYPE_FC) {
fcport->cfg.qos_enabled = on_off;
/**
* Notify fcpim of the change in QoS state
*/
bfa_fcpim_update_ioredirect(bfa);
}
}
void
@ -1942,4 +1947,10 @@ bfa_fcport_is_linkup(struct bfa_s *bfa)
return bfa_sm_cmp_state(BFA_FCPORT_MOD(bfa), bfa_fcport_sm_linkup);
}
bfa_boolean_t
bfa_fcport_is_qos_enabled(struct bfa_s *bfa)
{
struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
return fcport->cfg.qos_enabled;
}

7
drivers/scsi/bfa/bfa_hw_cb.c
View File

@ -152,4 +152,9 @@ bfa_hwcb_isr_mode_set(struct bfa_s *bfa, bfa_boolean_t msix)
bfa->iocfc.hwif.hw_rspq_ack = bfa_hwcb_rspq_ack_msix;
}
void
bfa_hwcb_msix_get_rme_range(struct bfa_s *bfa, u32 *start, u32 *end)
{
*start = BFA_MSIX_RME_Q0;
*end = BFA_MSIX_RME_Q7;
}

7
drivers/scsi/bfa/bfa_hw_ct.c
View File

@ -168,4 +168,9 @@ bfa_hwct_isr_mode_set(struct bfa_s *bfa, bfa_boolean_t msix)
bfa_ioc_isr_mode_set(&bfa->ioc, msix);
}
void
bfa_hwct_msix_get_rme_range(struct bfa_s *bfa, u32 *start, u32 *end)
{
*start = BFA_MSIX_RME_Q0;
*end = BFA_MSIX_RME_Q3;
}

1
drivers/scsi/bfa/bfa_intr.c
View File

@ -134,6 +134,7 @@ bfa_isr_enable(struct bfa_s *bfa)
bfa_reg_write(bfa->iocfc.bfa_regs.intr_status, intr_unmask);
bfa_reg_write(bfa->iocfc.bfa_regs.intr_mask, ~intr_unmask);
bfa->iocfc.intr_mask = ~intr_unmask;
bfa_isr_mode_set(bfa, bfa->msix.nvecs != 0);
}

2
drivers/scsi/bfa/bfa_iocfc.c
View File

@ -187,6 +187,7 @@ bfa_iocfc_init_mem(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg,
iocfc->hwif.hw_msix_uninstall = bfa_hwct_msix_uninstall;
iocfc->hwif.hw_isr_mode_set = bfa_hwct_isr_mode_set;
iocfc->hwif.hw_msix_getvecs = bfa_hwct_msix_getvecs;
iocfc->hwif.hw_msix_get_rme_range = bfa_hwct_msix_get_rme_range;
} else {
iocfc->hwif.hw_reginit = bfa_hwcb_reginit;
iocfc->hwif.hw_reqq_ack = bfa_hwcb_reqq_ack;
@ -196,6 +197,7 @@ bfa_iocfc_init_mem(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg,
iocfc->hwif.hw_msix_uninstall = bfa_hwcb_msix_uninstall;
iocfc->hwif.hw_isr_mode_set = bfa_hwcb_isr_mode_set;
iocfc->hwif.hw_msix_getvecs = bfa_hwcb_msix_getvecs;
iocfc->hwif.hw_msix_get_rme_range = bfa_hwcb_msix_get_rme_range;
}
iocfc->hwif.hw_reginit(bfa);

9
drivers/scsi/bfa/bfa_iocfc.h
View File

@ -63,6 +63,8 @@ struct bfa_hwif_s {
void (*hw_isr_mode_set)(struct bfa_s *bfa, bfa_boolean_t msix);
void (*hw_msix_getvecs)(struct bfa_s *bfa, u32 *vecmap,
u32 *nvecs, u32 *maxvec);
void (*hw_msix_get_rme_range) (struct bfa_s *bfa, u32 *start,
u32 *end);
};
typedef void (*bfa_cb_iocfc_t) (void *cbarg, enum bfa_status status);
@ -104,7 +106,8 @@ struct bfa_iocfc_s {
struct bfa_hwif_s hwif;
bfa_cb_iocfc_t updateq_cbfn; /* bios callback function */
void *updateq_cbarg; /* bios callback arg */
void *updateq_cbarg; /* bios callback arg */
u32 intr_mask;
};
#define bfa_lpuid(__bfa) bfa_ioc_portid(&(__bfa)->ioc)
@ -119,6 +122,8 @@ struct bfa_iocfc_s {
#define bfa_msix_getvecs(__bfa, __vecmap, __nvecs, __maxvec) \
((__bfa)->iocfc.hwif.hw_msix_getvecs(__bfa, __vecmap, \
__nvecs, __maxvec))
#define bfa_msix_get_rme_range(__bfa, __start, __end) \
((__bfa)->iocfc.hwif.hw_msix_get_rme_range(__bfa, __start, __end))
/*
* FC specific IOC functions.
@ -154,6 +159,7 @@ void bfa_hwcb_msix_uninstall(struct bfa_s *bfa);
void bfa_hwcb_isr_mode_set(struct bfa_s *bfa, bfa_boolean_t msix);
void bfa_hwcb_msix_getvecs(struct bfa_s *bfa, u32 *vecmap,
u32 *nvecs, u32 *maxvec);
void bfa_hwcb_msix_get_rme_range(struct bfa_s *bfa, u32 *start, u32 *end);
void bfa_hwct_reginit(struct bfa_s *bfa);
void bfa_hwct_reqq_ack(struct bfa_s *bfa, int rspq);
void bfa_hwct_rspq_ack(struct bfa_s *bfa, int rspq);
@ -163,6 +169,7 @@ void bfa_hwct_msix_uninstall(struct bfa_s *bfa);
void bfa_hwct_isr_mode_set(struct bfa_s *bfa, bfa_boolean_t msix);
void bfa_hwct_msix_getvecs(struct bfa_s *bfa, u32 *vecmap,
u32 *nvecs, u32 *maxvec);
void bfa_hwct_msix_get_rme_range(struct bfa_s *bfa, u32 *start, u32 *end);
void bfa_com_meminfo(bfa_boolean_t mincfg, u32 *dm_len);
void bfa_com_attach(struct bfa_s *bfa, struct bfa_meminfo_s *mi,

29
drivers/scsi/bfa/bfa_ioim.c
View File

@ -234,8 +234,8 @@ bfa_ioim_sm_active(struct bfa_ioim_s *ioim, enum bfa_ioim_event event)
bfa_sm_set_state(ioim, bfa_ioim_sm_abort);
else {
bfa_sm_set_state(ioim, bfa_ioim_sm_abort_qfull);
bfa_reqq_wait(ioim->bfa, ioim->itnim->reqq,
&ioim->iosp->reqq_wait);
bfa_reqq_wait(ioim->bfa, ioim->reqq,
&ioim->iosp->reqq_wait);
}
break;
@ -247,8 +247,8 @@ bfa_ioim_sm_active(struct bfa_ioim_s *ioim, enum bfa_ioim_event event)
bfa_sm_set_state(ioim, bfa_ioim_sm_cleanup);
else {
bfa_sm_set_state(ioim, bfa_ioim_sm_cleanup_qfull);
bfa_reqq_wait(ioim->bfa, ioim->itnim->reqq,
&ioim->iosp->reqq_wait);
bfa_reqq_wait(ioim->bfa, ioim->reqq,
&ioim->iosp->reqq_wait);
}
break;
@ -305,7 +305,7 @@ bfa_ioim_sm_abort(struct bfa_ioim_s *ioim, enum bfa_ioim_event event)
bfa_sm_set_state(ioim, bfa_ioim_sm_cleanup);
else {
bfa_sm_set_state(ioim, bfa_ioim_sm_cleanup_qfull);
bfa_reqq_wait(ioim->bfa, ioim->itnim->reqq,
bfa_reqq_wait(ioim->bfa, ioim->reqq,
&ioim->iosp->reqq_wait);
}
break;
@ -738,9 +738,9 @@ bfa_ioim_send_ioreq(struct bfa_ioim_s *ioim)
/**
* check for room in queue to send request now
*/
m = bfa_reqq_next(ioim->bfa, itnim->reqq);
m = bfa_reqq_next(ioim->bfa, ioim->reqq);
if (!m) {
bfa_reqq_wait(ioim->bfa, ioim->itnim->reqq,
bfa_reqq_wait(ioim->bfa, ioim->reqq,
&ioim->iosp->reqq_wait);
return BFA_FALSE;
}
@ -832,7 +832,7 @@ bfa_ioim_send_ioreq(struct bfa_ioim_s *ioim)
/**
* queue I/O message to firmware
*/
bfa_reqq_produce(ioim->bfa, itnim->reqq);
bfa_reqq_produce(ioim->bfa, ioim->reqq);
return BFA_TRUE;
}
@ -930,14 +930,13 @@ bfa_ioim_sgpg_setup(struct bfa_ioim_s *ioim)
static bfa_boolean_t
bfa_ioim_send_abort(struct bfa_ioim_s *ioim)
{
struct bfa_itnim_s *itnim = ioim->itnim;
struct bfi_ioim_abort_req_s *m;
enum bfi_ioim_h2i msgop;
/**
* check for room in queue to send request now
*/
m = bfa_reqq_next(ioim->bfa, itnim->reqq);
m = bfa_reqq_next(ioim->bfa, ioim->reqq);
if (!m)
return BFA_FALSE;
@ -956,7 +955,7 @@ bfa_ioim_send_abort(struct bfa_ioim_s *ioim)
/**
* queue I/O message to firmware
*/
bfa_reqq_produce(ioim->bfa, itnim->reqq);
bfa_reqq_produce(ioim->bfa, ioim->reqq);
return BFA_TRUE;
}
@ -1306,6 +1305,14 @@ void
bfa_ioim_start(struct bfa_ioim_s *ioim)
{
bfa_trc_fp(ioim->bfa, ioim->iotag);
/**
* Obtain the queue over which this request has to be issued
*/
ioim->reqq = bfa_fcpim_ioredirect_enabled(ioim->bfa) ?
bfa_cb_ioim_get_reqq(ioim->dio) :
bfa_itnim_get_reqq(ioim);
bfa_sm_send_event(ioim, BFA_IOIM_SM_START);
}

9
drivers/scsi/bfa/bfad_im.c
View File

@ -702,6 +702,15 @@ bfad_im_probe_undo(struct bfad_s *bfad)
}
}
/**
* Call back function to handle IO redirection state change
*/
void
bfa_cb_ioredirect_state_change(void *hcb_bfad, bfa_boolean_t ioredirect)
{
/* Do nothing */
}
struct Scsi_Host *
bfad_os_scsi_host_alloc(struct bfad_im_port_s *im_port, struct bfad_s *bfad)
{

20
drivers/scsi/bfa/include/bfa_fcpim.h
View File

@ -42,6 +42,24 @@ u16 bfa_fcpim_qdepth_get(struct bfa_s *bfa);
bfa_status_t bfa_fcpim_get_modstats(struct bfa_s *bfa,
struct bfa_fcpim_stats_s *modstats);
bfa_status_t bfa_fcpim_clr_modstats(struct bfa_s *bfa);
void bfa_fcpim_set_ioredirect(struct bfa_s *bfa, bfa_boolean_t state);
void bfa_fcpim_update_ioredirect(struct bfa_s *bfa);
void bfa_cb_ioredirect_state_change(void *hcb_bfad, bfa_boolean_t ioredirect);
#define bfa_fcpim_ioredirect_enabled(__bfa) \
(((struct bfa_fcpim_mod_s *)(BFA_FCPIM_MOD(__bfa)))->ioredirect)
#define bfa_fcpim_get_next_reqq(__bfa, __qid) \
{ \
struct bfa_fcpim_mod_s *__fcpim = BFA_FCPIM_MOD(__bfa); \
__fcpim->reqq++; \
__fcpim->reqq &= (BFI_IOC_MAX_CQS - 1); \
*(__qid) = __fcpim->reqq; \
}
#define bfa_iocfc_map_msg_to_qid(__msg, __qid) \
*(__qid) = (u8)((__msg) & (BFI_IOC_MAX_CQS - 1));
/*
* bfa itnim API functions
@ -56,6 +74,7 @@ void bfa_itnim_get_stats(struct bfa_itnim_s *itnim,
struct bfa_itnim_hal_stats_s *stats);
void bfa_itnim_clear_stats(struct bfa_itnim_s *itnim);
#define bfa_itnim_get_reqq(__ioim) (((struct bfa_ioim_s *)__ioim)->itnim->reqq)
/**
* BFA completion callback for bfa_itnim_online().
@ -156,4 +175,3 @@ void bfa_cb_tskim_done(void *bfad, struct bfad_tskim_s *dtsk,
enum bfi_tskim_status tsk_status);
#endif /* __BFA_FCPIM_H__ */

1
drivers/scsi/bfa/include/bfa_svc.h
View File

@ -215,6 +215,7 @@ bfa_status_t bfa_fcport_get_stats(struct bfa_s *bfa,
bfa_cb_pport_t cbfn, void *cbarg);
bfa_status_t bfa_fcport_clear_stats(struct bfa_s *bfa, bfa_cb_pport_t cbfn,
void *cbarg);
bfa_boolean_t bfa_fcport_is_qos_enabled(struct bfa_s *bfa);
/*
* bfa rport API functions

2
drivers/scsi/bfa/include/defs/bfa_defs_driver.h
View File

@ -29,7 +29,7 @@ struct bfa_driver_stats_s {
u16 tm_target_reset;
u16 tm_bus_reset;
u16 ioc_restart; /* IOC restart count */
u16 io_pending; /* outstanding io count per-IOC */
u16 rsvd;
u64 control_req;
u64 input_req;
u64 output_req;