Commit e2187d7f authored by Krishna Gudipati's avatar Krishna Gudipati Committed by James Bottomley
Browse files

[SCSI] bfa: Enhancement for fcpim and IO tag handling. 



- Enhancements to FCPIM module.
- Introduced IO tag management to allocate/release IOs to FCPIM module
  from a free IOtag pool.

Signed-off-by: default avatarKrishna Gudipati <kgudipat@brocade.com>
Signed-off-by: default avatarJames Bottomley <JBottomley@Parallels.com>
parent be540a99

drivers/scsi/bfa/bfa_core.c

+7 −2
Original line number Diff line number Diff line
@@ -31,7 +31,7 @@ static struct bfa_module_s *hal_mods[] = { 
	&hal_mod_lps,

	&hal_mod_uf,

	&hal_mod_rport,

	&hal_mod_fcpim,

	&hal_mod_fcp,

	NULL

};
@@ -51,7 +51,7 @@ static bfa_isr_func_t bfa_isrs[BFI_MC_MAX] = { 
	bfa_fcxp_isr,		/* BFI_MC_FCXP */

	bfa_lps_isr,		/* BFI_MC_LPS */

	bfa_rport_isr,		/* BFI_MC_RPORT */

	bfa_itnim_isr,		/* BFI_MC_ITN */

	bfa_itn_isr,		/* BFI_MC_ITN */

	bfa_isr_unhandled,	/* BFI_MC_IOIM_READ */

	bfa_isr_unhandled,	/* BFI_MC_IOIM_WRITE */

	bfa_isr_unhandled,	/* BFI_MC_IOIM_IO */
@@ -448,6 +448,8 @@ bfa_iocfc_send_cfg(void *bfa_arg) 
	 */

	cfg_info->endian_sig = BFI_IOC_ENDIAN_SIG;

	cfg_info->num_cqs = cfg->fwcfg.num_cqs;

	cfg_info->num_ioim_reqs = cpu_to_be16(cfg->fwcfg.num_ioim_reqs);

	cfg_info->num_fwtio_reqs = cpu_to_be16(cfg->fwcfg.num_fwtio_reqs);



	bfa_dma_be_addr_set(cfg_info->cfgrsp_addr, iocfc->cfgrsp_dma.pa);

	/*
@@ -729,6 +731,7 @@ bfa_iocfc_cfgrsp(struct bfa_s *bfa) 


	fwcfg->num_cqs	      = fwcfg->num_cqs;

	fwcfg->num_ioim_reqs  = be16_to_cpu(fwcfg->num_ioim_reqs);

	fwcfg->num_fwtio_reqs = be16_to_cpu(fwcfg->num_fwtio_reqs);

	fwcfg->num_tskim_reqs = be16_to_cpu(fwcfg->num_tskim_reqs);

	fwcfg->num_fcxp_reqs  = be16_to_cpu(fwcfg->num_fcxp_reqs);

	fwcfg->num_uf_bufs    = be16_to_cpu(fwcfg->num_uf_bufs);
@@ -1272,6 +1275,7 @@ bfa_cfg_get_default(struct bfa_iocfc_cfg_s *cfg) 
	cfg->fwcfg.num_fcxp_reqs = DEF_CFG_NUM_FCXP_REQS;

	cfg->fwcfg.num_uf_bufs = DEF_CFG_NUM_UF_BUFS;

	cfg->fwcfg.num_cqs = DEF_CFG_NUM_CQS;

	cfg->fwcfg.num_fwtio_reqs = 0;



	cfg->drvcfg.num_reqq_elems = DEF_CFG_NUM_REQQ_ELEMS;

	cfg->drvcfg.num_rspq_elems = DEF_CFG_NUM_RSPQ_ELEMS;
@@ -1293,6 +1297,7 @@ bfa_cfg_get_min(struct bfa_iocfc_cfg_s *cfg) 
	cfg->fwcfg.num_fcxp_reqs   = BFA_FCXP_MIN;

	cfg->fwcfg.num_uf_bufs     = BFA_UF_MIN;

	cfg->fwcfg.num_rports      = BFA_RPORT_MIN;

	cfg->fwcfg.num_fwtio_reqs = 0;



	cfg->drvcfg.num_sgpgs      = BFA_SGPG_MIN;

	cfg->drvcfg.num_reqq_elems = BFA_REQQ_NELEMS_MIN;

drivers/scsi/bfa/bfa_defs_svc.h

+2 −1
Original line number Diff line number Diff line
@@ -47,11 +47,12 @@ struct bfa_iocfc_fwcfg_s { 
	u16        num_rports;	/*  number of remote ports	*/

	u16        num_ioim_reqs;	/*  number of IO reqs		*/

	u16        num_tskim_reqs;	/*  task management requests	*/

	u16	   num_fwtio_reqs;	/* number of TM IO reqs in FW */

	u16        num_fcxp_reqs;	/*  unassisted FC exchanges	*/

	u16        num_uf_bufs;	/*  unsolicited recv buffers	*/

	u8		num_cqs;

	u8		fw_tick_res;	/*  FW clock resolution in ms */

	u8		rsvd[4];

	u8		rsvd[2];

};

#pragma pack()

drivers/scsi/bfa/bfa_fcpim.c

+197 −70
Original line number Diff line number Diff line
@@ -19,7 +19,6 @@ 
#include "bfa_modules.h"



BFA_TRC_FILE(HAL, FCPIM);

BFA_MODULE(fcpim);



/*

 *  BFA ITNIM Related definitions
@@ -295,16 +294,9 @@ bfa_fcpim_meminfo(struct bfa_iocfc_cfg_s *cfg, u32 *km_len, 
	/*

	 * IO memory

	 */

	if (cfg->fwcfg.num_ioim_reqs < BFA_IOIM_MIN)

		cfg->fwcfg.num_ioim_reqs = BFA_IOIM_MIN;

	else if (cfg->fwcfg.num_ioim_reqs > BFA_IOIM_MAX)

		cfg->fwcfg.num_ioim_reqs = BFA_IOIM_MAX;



	*km_len += cfg->fwcfg.num_ioim_reqs *

	  (sizeof(struct bfa_ioim_s) + sizeof(struct bfa_ioim_sp_s));



	*dm_len += cfg->fwcfg.num_ioim_reqs * BFI_IOIM_SNSLEN;



	/*

	 * task management command memory

	 */
@@ -315,19 +307,21 @@ bfa_fcpim_meminfo(struct bfa_iocfc_cfg_s *cfg, u32 *km_len, 




static void

bfa_fcpim_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg,

		struct bfa_meminfo_s *meminfo, struct bfa_pcidev_s *pcidev)

bfa_fcpim_attach(struct bfa_fcp_mod_s *fcp, void *bfad,

		struct bfa_iocfc_cfg_s *cfg, struct bfa_meminfo_s *meminfo,

		struct bfa_pcidev_s *pcidev)

{

	struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa);

	struct bfa_fcpim_s *fcpim = &fcp->fcpim;

	struct bfa_s *bfa = fcp->bfa;



	bfa_trc(bfa, cfg->drvcfg.path_tov);

	bfa_trc(bfa, cfg->fwcfg.num_rports);

	bfa_trc(bfa, cfg->fwcfg.num_ioim_reqs);

	bfa_trc(bfa, cfg->fwcfg.num_tskim_reqs);



	fcpim->fcp		= fcp;

	fcpim->bfa		= bfa;

	fcpim->num_itnims	= cfg->fwcfg.num_rports;

	fcpim->num_ioim_reqs  = cfg->fwcfg.num_ioim_reqs;

	fcpim->num_tskim_reqs = cfg->fwcfg.num_tskim_reqs;

	fcpim->path_tov		= cfg->drvcfg.path_tov;

	fcpim->delay_comp	= cfg->drvcfg.delay_comp;
@@ -340,24 +334,9 @@ bfa_fcpim_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg, 
}



static void

bfa_fcpim_detach(struct bfa_s *bfa)

{

}



static void

bfa_fcpim_start(struct bfa_s *bfa)

{

}



static void

bfa_fcpim_stop(struct bfa_s *bfa)

bfa_fcpim_iocdisable(struct bfa_fcp_mod_s *fcp)

{

}



static void

bfa_fcpim_iocdisable(struct bfa_s *bfa)

{

	struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa);

	struct bfa_fcpim_s *fcpim = &fcp->fcpim;

	struct bfa_itnim_s *itnim;

	struct list_head *qe, *qen;
@@ -370,7 +349,7 @@ bfa_fcpim_iocdisable(struct bfa_s *bfa) 
void

bfa_fcpim_path_tov_set(struct bfa_s *bfa, u16 path_tov)

{

	struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa);

	struct bfa_fcpim_s *fcpim = BFA_FCPIM(bfa);



	fcpim->path_tov = path_tov * 1000;

	if (fcpim->path_tov > BFA_FCPIM_PATHTOV_MAX)
@@ -380,7 +359,7 @@ bfa_fcpim_path_tov_set(struct bfa_s *bfa, u16 path_tov) 
u16

bfa_fcpim_path_tov_get(struct bfa_s *bfa)

{

	struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa);

	struct bfa_fcpim_s *fcpim = BFA_FCPIM(bfa);



	return fcpim->path_tov / 1000;

}
@@ -388,7 +367,7 @@ bfa_fcpim_path_tov_get(struct bfa_s *bfa) 
u16

bfa_fcpim_qdepth_get(struct bfa_s *bfa)

{

	struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa);

	struct bfa_fcpim_s *fcpim = BFA_FCPIM(bfa);



	return fcpim->q_depth;

}
@@ -1000,7 +979,7 @@ bfa_itnim_meminfo(struct bfa_iocfc_cfg_s *cfg, u32 *km_len, 
}



void

bfa_itnim_attach(struct bfa_fcpim_mod_s *fcpim, struct bfa_meminfo_s *minfo)

bfa_itnim_attach(struct bfa_fcpim_s *fcpim, struct bfa_meminfo_s *minfo)

{

	struct bfa_s	*bfa = fcpim->bfa;

	struct bfa_itnim_s *itnim;
@@ -1224,7 +1203,7 @@ bfa_itnim_iotov_delete(struct bfa_itnim_s *itnim) 
static void

bfa_itnim_update_del_itn_stats(struct bfa_itnim_s *itnim)

{

	struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(itnim->bfa);

	struct bfa_fcpim_s *fcpim = BFA_FCPIM(itnim->bfa);

	fcpim->del_itn_stats.del_itn_iocomp_aborted +=

		itnim->stats.iocomp_aborted;

	fcpim->del_itn_stats.del_itn_iocomp_timedout +=
@@ -1250,7 +1229,7 @@ bfa_itnim_update_del_itn_stats(struct bfa_itnim_s *itnim) 
void

bfa_itnim_isr(struct bfa_s *bfa, struct bfi_msg_s *m)

{

	struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa);

	struct bfa_fcpim_s *fcpim = BFA_FCPIM(bfa);

	union bfi_itn_i2h_msg_u msg;

	struct bfa_itnim_s *itnim;
@@ -1295,9 +1274,11 @@ bfa_itnim_isr(struct bfa_s *bfa, struct bfi_msg_s *m) 
struct bfa_itnim_s *

bfa_itnim_create(struct bfa_s *bfa, struct bfa_rport_s *rport, void *ditn)

{

	struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa);

	struct bfa_fcpim_s *fcpim = BFA_FCPIM(bfa);

	struct bfa_itnim_s *itnim;



	bfa_itn_create(bfa, rport, bfa_itnim_isr);



	itnim = BFA_ITNIM_FROM_TAG(fcpim, rport->rport_tag);

	WARN_ON(itnim->rport != rport);
@@ -1991,7 +1972,8 @@ __bfa_cb_ioim_comp(void *cbarg, bfa_boolean_t complete) 
		if ((m->scsi_status == SCSI_STATUS_CHECK_CONDITION) &&

					m->sns_len) {

			sns_len = m->sns_len;

			snsinfo = ioim->iosp->snsinfo;

			snsinfo = BFA_SNSINFO_FROM_TAG(ioim->fcpim->fcp,

						ioim->iotag);

		}



		/*
@@ -2360,46 +2342,31 @@ bfa_ioim_delayed_comp(struct bfa_ioim_s *ioim, bfa_boolean_t iotov) 
 * Memory allocation and initialization.

 */

void

bfa_ioim_attach(struct bfa_fcpim_mod_s *fcpim, struct bfa_meminfo_s *minfo)

bfa_ioim_attach(struct bfa_fcpim_s *fcpim, struct bfa_meminfo_s *minfo)

{

	struct bfa_ioim_s		*ioim;

	struct bfa_ioim_sp_s	*iosp;

	u16		i;

	u8			*snsinfo;

	u32		snsbufsz;



	/*

	 * claim memory first

	 */

	ioim = (struct bfa_ioim_s *) bfa_meminfo_kva(minfo);

	fcpim->ioim_arr = ioim;

	bfa_meminfo_kva(minfo) = (u8 *) (ioim + fcpim->num_ioim_reqs);

	bfa_meminfo_kva(minfo) = (u8 *) (ioim + fcpim->fcp->num_ioim_reqs);



	iosp = (struct bfa_ioim_sp_s *) bfa_meminfo_kva(minfo);

	fcpim->ioim_sp_arr = iosp;

	bfa_meminfo_kva(minfo) = (u8 *) (iosp + fcpim->num_ioim_reqs);



	/*

	 * Claim DMA memory for per IO sense data.

	 */

	snsbufsz = fcpim->num_ioim_reqs * BFI_IOIM_SNSLEN;

	fcpim->snsbase.pa  = bfa_meminfo_dma_phys(minfo);

	bfa_meminfo_dma_phys(minfo) += snsbufsz;



	fcpim->snsbase.kva = bfa_meminfo_dma_virt(minfo);

	bfa_meminfo_dma_virt(minfo) += snsbufsz;

	snsinfo = fcpim->snsbase.kva;

	bfa_iocfc_set_snsbase(fcpim->bfa, fcpim->snsbase.pa);

	bfa_meminfo_kva(minfo) = (u8 *) (iosp + fcpim->fcp->num_ioim_reqs);



	/*

	 * Initialize ioim free queues

	 */

	INIT_LIST_HEAD(&fcpim->ioim_free_q);

	INIT_LIST_HEAD(&fcpim->ioim_resfree_q);

	INIT_LIST_HEAD(&fcpim->ioim_comp_q);



	for (i = 0; i < fcpim->num_ioim_reqs;

	     i++, ioim++, iosp++, snsinfo += BFI_IOIM_SNSLEN) {

	for (i = 0; i < fcpim->fcp->num_ioim_reqs;

	     i++, ioim++, iosp++) {

		/*

		 * initialize IOIM

		 */
@@ -2408,22 +2375,19 @@ bfa_ioim_attach(struct bfa_fcpim_mod_s *fcpim, struct bfa_meminfo_s *minfo) 
		ioim->bfa     = fcpim->bfa;

		ioim->fcpim   = fcpim;

		ioim->iosp    = iosp;

		iosp->snsinfo = snsinfo;

		INIT_LIST_HEAD(&ioim->sgpg_q);

		bfa_reqq_winit(&ioim->iosp->reqq_wait,

				   bfa_ioim_qresume, ioim);

		bfa_sgpg_winit(&ioim->iosp->sgpg_wqe,

				   bfa_ioim_sgpg_alloced, ioim);

		bfa_sm_set_state(ioim, bfa_ioim_sm_uninit);



		list_add_tail(&ioim->qe, &fcpim->ioim_free_q);

	}

}



void

bfa_ioim_isr(struct bfa_s *bfa, struct bfi_msg_s *m)

{

	struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa);

	struct bfa_fcpim_s *fcpim = BFA_FCPIM(bfa);

	struct bfi_ioim_rsp_s *rsp = (struct bfi_ioim_rsp_s *) m;

	struct bfa_ioim_s *ioim;

	u16	iotag;
@@ -2507,7 +2471,7 @@ bfa_ioim_isr(struct bfa_s *bfa, struct bfi_msg_s *m) 
void

bfa_ioim_good_comp_isr(struct bfa_s *bfa, struct bfi_msg_s *m)

{

	struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa);

	struct bfa_fcpim_s *fcpim = BFA_FCPIM(bfa);

	struct bfi_ioim_rsp_s *rsp = (struct bfi_ioim_rsp_s *) m;

	struct bfa_ioim_s *ioim;

	u16	iotag;
@@ -2573,18 +2537,21 @@ struct bfa_ioim_s * 
bfa_ioim_alloc(struct bfa_s *bfa, struct bfad_ioim_s *dio,

		struct bfa_itnim_s *itnim, u16 nsges)

{

	struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa);

	struct bfa_fcpim_s *fcpim = BFA_FCPIM(bfa);

	struct bfa_ioim_s *ioim;

	struct bfa_iotag_s *iotag = NULL;



	/*

	 * alocate IOIM resource

	 */

	bfa_q_deq(&fcpim->ioim_free_q, &ioim);

	if (!ioim) {

	bfa_q_deq(&fcpim->fcp->iotag_ioim_free_q, &iotag);

	if (!iotag) {

		bfa_stats(itnim, no_iotags);

		return NULL;

	}



	ioim = BFA_IOIM_FROM_TAG(fcpim, iotag->tag);



	ioim->dio = dio;

	ioim->itnim = itnim;

	ioim->nsges = nsges;
@@ -2601,7 +2568,8 @@ bfa_ioim_alloc(struct bfa_s *bfa, struct bfad_ioim_s *dio, 
void

bfa_ioim_free(struct bfa_ioim_s *ioim)

{

	struct bfa_fcpim_mod_s *fcpim = ioim->fcpim;

	struct bfa_fcpim_s *fcpim = ioim->fcpim;

	struct bfa_iotag_s *iotag;



	if (ioim->nsgpgs > 0)

		bfa_sgpg_mfree(ioim->bfa, &ioim->sgpg_q, ioim->nsgpgs);
@@ -2610,8 +2578,17 @@ bfa_ioim_free(struct bfa_ioim_s *ioim) 
	fcpim->ios_active--;



	ioim->iotag &= BFA_IOIM_IOTAG_MASK;



	WARN_ON(!(ioim->iotag <

		(fcpim->fcp->num_ioim_reqs + fcpim->fcp->num_fwtio_reqs)));

	iotag = BFA_IOTAG_FROM_TAG(fcpim->fcp, ioim->iotag);



	if (ioim->iotag < fcpim->fcp->num_ioim_reqs)

		list_add_tail(&iotag->qe, &fcpim->fcp->iotag_ioim_free_q);

	else

		list_add_tail(&iotag->qe, &fcpim->fcp->iotag_tio_free_q);



	list_del(&ioim->qe);

	list_add_tail(&ioim->qe, &fcpim->ioim_free_q);

}



void
@@ -3129,7 +3106,7 @@ bfa_tskim_cleanup(struct bfa_tskim_s *tskim) 
 * Memory allocation and initialization.

 */

void

bfa_tskim_attach(struct bfa_fcpim_mod_s *fcpim, struct bfa_meminfo_s *minfo)

bfa_tskim_attach(struct bfa_fcpim_s *fcpim, struct bfa_meminfo_s *minfo)

{

	struct bfa_tskim_s *tskim;

	u16	i;
@@ -3161,7 +3138,7 @@ bfa_tskim_attach(struct bfa_fcpim_mod_s *fcpim, struct bfa_meminfo_s *minfo) 
void

bfa_tskim_isr(struct bfa_s *bfa, struct bfi_msg_s *m)

{

	struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa);

	struct bfa_fcpim_s *fcpim = BFA_FCPIM(bfa);

	struct bfi_tskim_rsp_s *rsp = (struct bfi_tskim_rsp_s *) m;

	struct bfa_tskim_s *tskim;

	u16	tsk_tag = be16_to_cpu(rsp->tsk_tag);
@@ -3188,7 +3165,7 @@ bfa_tskim_isr(struct bfa_s *bfa, struct bfi_msg_s *m) 
struct bfa_tskim_s *

bfa_tskim_alloc(struct bfa_s *bfa, struct bfad_tskim_s *dtsk)

{

	struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa);

	struct bfa_fcpim_s *fcpim = BFA_FCPIM(bfa);

	struct bfa_tskim_s *tskim;



	bfa_q_deq(&fcpim->tskim_free_q, &tskim);
@@ -3233,3 +3210,153 @@ bfa_tskim_start(struct bfa_tskim_s *tskim, struct bfa_itnim_s *itnim, 
	list_add_tail(&tskim->qe, &itnim->tsk_q);

	bfa_sm_send_event(tskim, BFA_TSKIM_SM_START);

}



/* BFA FCP module - parent module for fcpim */



BFA_MODULE(fcp);



static void

bfa_fcp_meminfo(struct bfa_iocfc_cfg_s *cfg, u32 *km_len, u32 *dm_len)

{

	u16	num_io_req;



	/*

	 * ZERO for num_ioim_reqs and num_fwtio_reqs is allowed config value.

	 * So if the values are non zero, adjust them appropriately.

	 */

	if (cfg->fwcfg.num_ioim_reqs &&

	    cfg->fwcfg.num_ioim_reqs < BFA_IOIM_MIN)

		cfg->fwcfg.num_ioim_reqs = BFA_IOIM_MIN;

	else if (cfg->fwcfg.num_ioim_reqs > BFA_IOIM_MAX)

		cfg->fwcfg.num_ioim_reqs = BFA_IOIM_MAX;



	if (cfg->fwcfg.num_fwtio_reqs > BFA_FWTIO_MAX)

		cfg->fwcfg.num_fwtio_reqs = BFA_FWTIO_MAX;



	num_io_req = (cfg->fwcfg.num_ioim_reqs + cfg->fwcfg.num_fwtio_reqs);

	if (num_io_req > BFA_IO_MAX) {

		if (cfg->fwcfg.num_ioim_reqs && cfg->fwcfg.num_fwtio_reqs) {

			cfg->fwcfg.num_ioim_reqs = BFA_IO_MAX/2;

			cfg->fwcfg.num_fwtio_reqs = BFA_IO_MAX/2;

		} else if (cfg->fwcfg.num_fwtio_reqs)

			cfg->fwcfg.num_fwtio_reqs = BFA_FWTIO_MAX;

		else

			cfg->fwcfg.num_ioim_reqs = BFA_IOIM_MAX;

	}



	bfa_fcpim_meminfo(cfg, km_len, dm_len);



	num_io_req = (cfg->fwcfg.num_ioim_reqs + cfg->fwcfg.num_fwtio_reqs);

	*km_len += num_io_req * sizeof(struct bfa_iotag_s);

	*km_len += cfg->fwcfg.num_rports * sizeof(struct bfa_itn_s);

	*dm_len += num_io_req * BFI_IOIM_SNSLEN;

}



static void

bfa_fcp_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg,

		struct bfa_meminfo_s *meminfo, struct bfa_pcidev_s *pcidev)

{

	struct bfa_fcp_mod_s *fcp = BFA_FCP_MOD(bfa);

	u32	snsbufsz;



	fcp->num_ioim_reqs = cfg->fwcfg.num_ioim_reqs;

	fcp->num_fwtio_reqs  = cfg->fwcfg.num_fwtio_reqs;

	fcp->num_itns	= cfg->fwcfg.num_rports;

	fcp->bfa = bfa;



	snsbufsz = (fcp->num_ioim_reqs + fcp->num_fwtio_reqs) * BFI_IOIM_SNSLEN;

	fcp->snsbase.pa = bfa_meminfo_dma_phys(meminfo);

	bfa_meminfo_dma_phys(meminfo) += snsbufsz;



	fcp->snsbase.kva = bfa_meminfo_dma_virt(meminfo);

	bfa_meminfo_dma_virt(meminfo) += snsbufsz;

	bfa_iocfc_set_snsbase(bfa, fcp->snsbase.pa);



	bfa_fcpim_attach(fcp, bfad, cfg, meminfo, pcidev);



	fcp->itn_arr = (struct bfa_itn_s *) bfa_meminfo_kva(meminfo);

	bfa_meminfo_kva(meminfo) = (u8 *)fcp->itn_arr +

			(fcp->num_itns * sizeof(struct bfa_itn_s));

	memset(fcp->itn_arr, 0,

			(fcp->num_itns * sizeof(struct bfa_itn_s)));



	bfa_iotag_attach(fcp, meminfo);

}



static void

bfa_fcp_detach(struct bfa_s *bfa)

{

}



static void

bfa_fcp_start(struct bfa_s *bfa)

{

}



static void

bfa_fcp_stop(struct bfa_s *bfa)

{

}



static void

bfa_fcp_iocdisable(struct bfa_s *bfa)

{

	struct bfa_fcp_mod_s *fcp = BFA_FCP_MOD(bfa);



	bfa_fcpim_iocdisable(fcp);

}



void

bfa_itn_create(struct bfa_s *bfa, struct bfa_rport_s *rport,

		void (*isr)(struct bfa_s *bfa, struct bfi_msg_s *m))

{

	struct bfa_fcp_mod_s *fcp = BFA_FCP_MOD(bfa);

	struct bfa_itn_s *itn;



	itn =  BFA_ITN_FROM_TAG(fcp, rport->rport_tag);

	itn->isr = isr;

}



/*

 * Itn interrupt processing.

 */

void

bfa_itn_isr(struct bfa_s *bfa, struct bfi_msg_s *m)

{

	struct bfa_fcp_mod_s *fcp = BFA_FCP_MOD(bfa);

	union bfi_itn_i2h_msg_u msg;

	struct bfa_itn_s *itn;



	msg.msg = m;

	itn =  BFA_ITN_FROM_TAG(fcp, msg.create_rsp->bfa_handle);



	if (itn->isr)

		itn->isr(bfa, m);

	else

		WARN_ON(1);

}



void

bfa_iotag_attach(struct bfa_fcp_mod_s *fcp, struct bfa_meminfo_s *minfo)

{

	struct bfa_iotag_s *iotag;

	u16	num_io_req, i;



	iotag = (struct bfa_iotag_s *) bfa_meminfo_kva(minfo);

	fcp->iotag_arr = iotag;



	INIT_LIST_HEAD(&fcp->iotag_ioim_free_q);

	INIT_LIST_HEAD(&fcp->iotag_tio_free_q);



	num_io_req = fcp->num_ioim_reqs + fcp->num_fwtio_reqs;

	for (i = 0; i < num_io_req; i++, iotag++) {

		memset(iotag, 0, sizeof(struct bfa_iotag_s));

		iotag->tag = i;

		if (i < fcp->num_ioim_reqs)

			list_add_tail(&iotag->qe, &fcp->iotag_ioim_free_q);

		else

			list_add_tail(&iotag->qe, &fcp->iotag_tio_free_q);

	}



	bfa_meminfo_kva(minfo) = (u8 *) iotag;

}

drivers/scsi/bfa/bfa_fcpim.h

+52 −17
Original line number Diff line number Diff line
@@ -24,6 +24,32 @@ 
#include "bfa_defs_svc.h"

#include "bfa_cs.h"



/* FCP module related definitions */

#define BFA_IO_MAX	2000

#define BFA_FWTIO_MAX	0



struct bfa_fcp_mod_s;

struct bfa_iotag_s {

	struct list_head	qe;	/* queue element	*/

	u16	tag;			/* FW IO tag		*/

};



struct bfa_itn_s {

	bfa_isr_func_t isr;

};



void bfa_itn_create(struct bfa_s *bfa, struct bfa_rport_s *rport,

		void (*isr)(struct bfa_s *bfa, struct bfi_msg_s *m));

void bfa_itn_isr(struct bfa_s *bfa, struct bfi_msg_s *m);

void bfa_iotag_attach(struct bfa_fcp_mod_s *fcp, struct bfa_meminfo_s *minfo);



#define BFA_FCP_MOD(_hal)	(&(_hal)->modules.fcp_mod)

#define BFA_IOTAG_FROM_TAG(_fcp, _tag)	\

	(&(_fcp)->iotag_arr[(_tag & BFA_IOIM_IOTAG_MASK)])

#define BFA_ITN_FROM_TAG(_fcp, _tag)	\

	((_fcp)->itn_arr + ((_tag) & ((_fcp)->num_itns - 1)))

#define BFA_SNSINFO_FROM_TAG(_fcp, _tag) \

	(((u8 *)(_fcp)->snsbase.kva) + (_tag * BFI_IOIM_SNSLEN))



#define BFA_ITNIM_MIN   32

#define BFA_ITNIM_MAX   1024
@@ -75,22 +101,20 @@ struct bfad_tskim_s; 


typedef void    (*bfa_fcpim_profile_t) (struct bfa_ioim_s *ioim);



struct bfa_fcpim_mod_s {

struct bfa_fcpim_s {

	struct bfa_s		*bfa;

	struct bfa_fcp_mod_s	*fcp;

	struct bfa_itnim_s	*itnim_arr;

	struct bfa_ioim_s	*ioim_arr;

	struct bfa_ioim_sp_s	*ioim_sp_arr;

	struct bfa_tskim_s	*tskim_arr;

	struct bfa_dma_s	snsbase;

	int			num_itnims;

	int			num_ioim_reqs;

	int			num_tskim_reqs;

	u32			path_tov;

	u16			q_depth;

	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 */

	struct list_head	ioim_comp_q;	/*  IO global comp Q	*/

	struct list_head	tskim_free_q;
@@ -104,6 +128,19 @@ struct bfa_fcpim_mod_s { 
	bfa_fcpim_profile_t     profile_start;

};



struct bfa_fcp_mod_s {

	struct bfa_s		*bfa;

	struct list_head	iotag_ioim_free_q;	/* free IO resources */

	struct list_head	iotag_tio_free_q;	/* free IO resources */

	struct bfa_iotag_s	*iotag_arr;

	struct bfa_itn_s	*itn_arr;

	int			num_ioim_reqs;

	int			num_fwtio_reqs;

	int			num_itns;

	struct bfa_dma_s	snsbase;

	struct bfa_fcpim_s	fcpim;

};



/*

 * BFA IO (initiator mode)

 */
@@ -111,7 +148,7 @@ struct bfa_ioim_s { 
	struct list_head	qe;		/*  queue elememt	*/

	bfa_sm_t		sm;		/*  BFA ioim state machine */

	struct bfa_s		*bfa;		/*  BFA module	*/

	struct bfa_fcpim_mod_s	*fcpim;		/*  parent fcpim module */

	struct bfa_fcpim_s	*fcpim;		/*  parent fcpim module */

	struct bfa_itnim_s	*itnim;		/*  i-t-n nexus for this IO  */

	struct bfad_ioim_s	*dio;		/*  driver IO handle	*/

	u16			iotag;		/*  FWI IO tag	*/
@@ -129,7 +166,6 @@ struct bfa_ioim_s { 


struct bfa_ioim_sp_s {

	struct bfi_msg_s	comp_rspmsg;	/*  IO comp f/w response */

	u8			*snsinfo;	/*  sense info for this IO   */

	struct bfa_sgpg_wqe_s	sgpg_wqe;	/*  waitq elem for sgpg	*/

	struct bfa_reqq_wait_s	reqq_wait;	/*  to wait for room in reqq */

	bfa_boolean_t		abort_explicit;	/*  aborted by OS	*/
@@ -143,7 +179,7 @@ struct bfa_tskim_s { 
	struct list_head	qe;

	bfa_sm_t		sm;

	struct bfa_s		*bfa;	/*  BFA module  */

	struct bfa_fcpim_mod_s  *fcpim;	/*  parent fcpim module	*/

	struct bfa_fcpim_s	*fcpim;	/*  parent fcpim module	*/

	struct bfa_itnim_s	*itnim;	/*  i-t-n nexus for this IO  */

	struct bfad_tskim_s	*dtsk;  /*  driver task mgmt cmnd	*/

	bfa_boolean_t		notify;	/*  notify itnim on TM comp  */
@@ -182,13 +218,13 @@ struct bfa_itnim_s { 
	struct bfa_wc_s	wc;		/*  waiting counter	*/

	struct bfa_timer_s timer;	/*  pending IO TOV	 */

	struct bfa_reqq_wait_s reqq_wait; /*  to wait for room in reqq */

	struct bfa_fcpim_mod_s *fcpim;	/*  fcpim module	*/

	struct bfa_fcpim_s *fcpim;	/*  fcpim module	*/

	struct bfa_itnim_iostats_s	stats;

	struct bfa_itnim_ioprofile_s  ioprofile;

};



#define bfa_itnim_is_online(_itnim) ((_itnim)->is_online)

#define BFA_FCPIM_MOD(_hal) (&(_hal)->modules.fcpim_mod)

#define BFA_FCPIM(_hal)	(&(_hal)->modules.fcp_mod.fcpim)

#define BFA_IOIM_TAG_2_ID(_iotag)	((_iotag) & BFA_IOIM_IOTAG_MASK)

#define BFA_IOIM_FROM_TAG(_fcpim, _iotag)	\

	(&fcpim->ioim_arr[(_iotag & BFA_IOIM_IOTAG_MASK)])
@@ -196,9 +232,9 @@ struct bfa_itnim_s { 
	(&fcpim->tskim_arr[_tmtag & (fcpim->num_tskim_reqs - 1)])



#define bfa_io_profile_start_time(_bfa)	\

	(_bfa->modules.fcpim_mod.io_profile_start_time)

	((_bfa)->modules.fcp_mod.fcpim.io_profile_start_time)

#define bfa_fcpim_get_io_profile(_bfa)	\

	(_bfa->modules.fcpim_mod.io_profile)

	((_bfa)->modules.fcp_mod.fcpim.io_profile)

#define bfa_ioim_update_iotag(__ioim) do {				\

	uint16_t k = (__ioim)->iotag >> BFA_IOIM_RETRY_TAG_OFFSET;	\

	k++; (__ioim)->iotag &= BFA_IOIM_IOTAG_MASK;			\
@@ -217,7 +253,7 @@ bfa_ioim_maxretry_reached(struct bfa_ioim_s *ioim) 
/*

 * function prototypes

 */

void	bfa_ioim_attach(struct bfa_fcpim_mod_s *fcpim,

void	bfa_ioim_attach(struct bfa_fcpim_s *fcpim,

					struct bfa_meminfo_s *minfo);

void	bfa_ioim_isr(struct bfa_s *bfa, struct bfi_msg_s *msg);

void	bfa_ioim_good_comp_isr(struct bfa_s *bfa,
@@ -228,7 +264,7 @@ void bfa_ioim_cleanup_tm(struct bfa_ioim_s *ioim, 
void	bfa_ioim_iocdisable(struct bfa_ioim_s *ioim);

void	bfa_ioim_tov(struct bfa_ioim_s *ioim);



void	bfa_tskim_attach(struct bfa_fcpim_mod_s *fcpim,

void	bfa_tskim_attach(struct bfa_fcpim_s *fcpim,

					struct bfa_meminfo_s *minfo);

void	bfa_tskim_isr(struct bfa_s *bfa, struct bfi_msg_s *msg);

void	bfa_tskim_iodone(struct bfa_tskim_s *tskim);
@@ -237,9 +273,8 @@ void bfa_tskim_cleanup(struct bfa_tskim_s *tskim); 


void	bfa_itnim_meminfo(struct bfa_iocfc_cfg_s *cfg, u32 *km_len,

					u32 *dm_len);

void	bfa_itnim_attach(struct bfa_fcpim_mod_s *fcpim,

void	bfa_itnim_attach(struct bfa_fcpim_s *fcpim,

					struct bfa_meminfo_s *minfo);

void	bfa_itnim_detach(struct bfa_fcpim_mod_s *fcpim);

void	bfa_itnim_iocdisable(struct bfa_itnim_s *itnim);

void	bfa_itnim_isr(struct bfa_s *bfa, struct bfi_msg_s *msg);

void	bfa_itnim_iodone(struct bfa_itnim_s *itnim);
@@ -254,11 +289,11 @@ u16 bfa_fcpim_path_tov_get(struct bfa_s *bfa); 
u16	bfa_fcpim_qdepth_get(struct bfa_s *bfa);



#define bfa_fcpim_ioredirect_enabled(__bfa)				\

	(((struct bfa_fcpim_mod_s *)(BFA_FCPIM_MOD(__bfa)))->ioredirect)

	(((struct bfa_fcpim_s *)(BFA_FCPIM(__bfa)))->ioredirect)



#define bfa_fcpim_get_next_reqq(__bfa, __qid)				\

{									\

	struct bfa_fcpim_mod_s *__fcpim = BFA_FCPIM_MOD(__bfa);      \

	struct bfa_fcpim_s *__fcpim = BFA_FCPIM(__bfa);      \

	__fcpim->reqq++;						\

	__fcpim->reqq &= (BFI_IOC_MAX_CQS - 1);      \

	*(__qid) = __fcpim->reqq;					\

drivers/scsi/bfa/bfa_modules.h

+2 −3
Original line number Diff line number Diff line
@@ -34,7 +34,7 @@ struct bfa_modules_s { 
	struct bfa_lps_mod_s	lps_mod;	/*  fcxp module	      */

	struct bfa_uf_mod_s	uf_mod;		/*  unsolicited frame module */

	struct bfa_rport_mod_s	rport_mod;	/*  remote port module	      */

	struct bfa_fcpim_mod_s	fcpim_mod;	/*  FCP initiator module     */

	struct bfa_fcp_mod_s	fcp_mod;	/*  FCP initiator module     */

	struct bfa_sgpg_mod_s	sgpg_mod;	/*  SG page module	      */

	struct bfa_port_s	port;		/*  Physical port module     */

};
@@ -51,7 +51,6 @@ enum { 
	BFA_TRC_HAL_IOCFC_CB	= 5,

};





/*

 * Macro to define a new BFA module

 */
@@ -122,6 +121,6 @@ extern struct bfa_module_s hal_mod_fcxp; 
extern struct bfa_module_s hal_mod_lps;

extern struct bfa_module_s hal_mod_uf;

extern struct bfa_module_s hal_mod_rport;

extern struct bfa_module_s hal_mod_fcpim;

extern struct bfa_module_s hal_mod_fcp;



#endif /* __BFA_MODULES_H__ */

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