Commit f1d584d7 authored by Krishna Gudipati's avatar Krishna Gudipati Committed by James Bottomley
Browse files

[SCSI] bfa: IOC auto recovery fix. 



- Made IOC auto_recovery synchronized and not timer based.
- Only one PCI function will attempt to recover and reinitialize
  the ASIC on a failure, after all the active PCI fns
  acknowledge the IOC failure.

Signed-off-by: default avatarKrishna Gudipati <kgudipat@brocade.com>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@suse.de>
parent f3a060ca

drivers/scsi/bfa/bfa_ioc.c

+212 −76
Original line number Diff line number Diff line
@@ -29,7 +29,7 @@ BFA_TRC_FILE(CNA, IOC); 
#define BFA_IOC_TOV		3000	/* msecs */

#define BFA_IOC_HWSEM_TOV	500	/* msecs */

#define BFA_IOC_HB_TOV		500	/* msecs */

#define BFA_IOC_HWINIT_MAX	2

#define BFA_IOC_HWINIT_MAX	5

#define BFA_IOC_TOV_RECOVER	 BFA_IOC_HB_TOV



#define bfa_ioc_timer_start(__ioc)					\
@@ -54,17 +54,16 @@ BFA_TRC_FILE(CNA, IOC); 
			((__ioc)->ioc_hwif->ioc_firmware_unlock(__ioc))

#define bfa_ioc_reg_init(__ioc) ((__ioc)->ioc_hwif->ioc_reg_init(__ioc))

#define bfa_ioc_map_port(__ioc) ((__ioc)->ioc_hwif->ioc_map_port(__ioc))

#define bfa_ioc_notify_hbfail(__ioc)			\

			((__ioc)->ioc_hwif->ioc_notify_hbfail(__ioc))



#ifdef BFA_IOC_IS_UEFI

#define bfa_ioc_is_bios_optrom(__ioc) (0)

#define bfa_ioc_is_uefi(__ioc) BFA_IOC_IS_UEFI

#else

#define bfa_ioc_is_bios_optrom(__ioc)	\

	(bfa_cb_image_get_size(BFA_IOC_FWIMG_TYPE(__ioc)) < BFA_IOC_FWIMG_MINSZ)

#define bfa_ioc_is_uefi(__ioc) (0)

#endif

#define bfa_ioc_notify_fail(__ioc)              \

			((__ioc)->ioc_hwif->ioc_notify_fail(__ioc))

#define bfa_ioc_sync_join(__ioc)                \

			((__ioc)->ioc_hwif->ioc_sync_join(__ioc))

#define bfa_ioc_sync_leave(__ioc)               \

			((__ioc)->ioc_hwif->ioc_sync_leave(__ioc))

#define bfa_ioc_sync_ack(__ioc)                 \

			((__ioc)->ioc_hwif->ioc_sync_ack(__ioc))

#define bfa_ioc_sync_complete(__ioc)            \

			((__ioc)->ioc_hwif->ioc_sync_complete(__ioc))



#define bfa_ioc_mbox_cmd_pending(__ioc)		\

			(!list_empty(&((__ioc)->mbox_mod.cmd_q)) || \
@@ -104,10 +103,11 @@ enum ioc_event { 
	IOC_E_ENABLED		= 5,	/*  f/w enabled		*/

	IOC_E_FWRSP_GETATTR	= 6,	/*  IOC get attribute response	*/

	IOC_E_DISABLED		= 7,	/*  f/w disabled		*/

	IOC_E_PFFAILED		= 8,	/*  failure notice by iocpf sm	*/

	IOC_E_HBFAIL		= 9,	/*  heartbeat failure		*/

	IOC_E_HWERROR		= 10,	/*  hardware error interrupt	*/

	IOC_E_TIMEOUT		= 11,	/*  timeout			*/

	IOC_E_INITFAILED	= 8,	/*  failure notice by iocpf sm	*/

	IOC_E_PFFAILED		= 9,	/*  failure notice by iocpf sm	*/

	IOC_E_HBFAIL		= 10,	/*  heartbeat failure		*/

	IOC_E_HWERROR		= 11,	/*  hardware error interrupt	*/

	IOC_E_TIMEOUT		= 12,	/*  timeout			*/

};



bfa_fsm_state_decl(bfa_ioc, uninit, struct bfa_ioc_s, enum ioc_event);
@@ -195,9 +195,14 @@ bfa_fsm_state_decl(bfa_iocpf, semwait, struct bfa_iocpf_s, enum iocpf_event); 
bfa_fsm_state_decl(bfa_iocpf, hwinit, struct bfa_iocpf_s, enum iocpf_event);

bfa_fsm_state_decl(bfa_iocpf, enabling, struct bfa_iocpf_s, enum iocpf_event);

bfa_fsm_state_decl(bfa_iocpf, ready, struct bfa_iocpf_s, enum iocpf_event);

bfa_fsm_state_decl(bfa_iocpf, initfail_sync, struct bfa_iocpf_s,

						enum iocpf_event);

bfa_fsm_state_decl(bfa_iocpf, initfail, struct bfa_iocpf_s, enum iocpf_event);

bfa_fsm_state_decl(bfa_iocpf, fail_sync, struct bfa_iocpf_s, enum iocpf_event);

bfa_fsm_state_decl(bfa_iocpf, fail, struct bfa_iocpf_s, enum iocpf_event);

bfa_fsm_state_decl(bfa_iocpf, disabling, struct bfa_iocpf_s, enum iocpf_event);

bfa_fsm_state_decl(bfa_iocpf, disabling_sync, struct bfa_iocpf_s,

						enum iocpf_event);

bfa_fsm_state_decl(bfa_iocpf, disabled, struct bfa_iocpf_s, enum iocpf_event);



static struct bfa_sm_table_s iocpf_sm_table[] = {
@@ -208,9 +213,12 @@ static struct bfa_sm_table_s iocpf_sm_table[] = { 
	{BFA_SM(bfa_iocpf_sm_hwinit), BFA_IOCPF_HWINIT},

	{BFA_SM(bfa_iocpf_sm_enabling), BFA_IOCPF_HWINIT},

	{BFA_SM(bfa_iocpf_sm_ready), BFA_IOCPF_READY},

	{BFA_SM(bfa_iocpf_sm_initfail_sync), BFA_IOCPF_INITFAIL},

	{BFA_SM(bfa_iocpf_sm_initfail), BFA_IOCPF_INITFAIL},

	{BFA_SM(bfa_iocpf_sm_fail_sync), BFA_IOCPF_FAIL},

	{BFA_SM(bfa_iocpf_sm_fail), BFA_IOCPF_FAIL},

	{BFA_SM(bfa_iocpf_sm_disabling), BFA_IOCPF_DISABLING},

	{BFA_SM(bfa_iocpf_sm_disabling_sync), BFA_IOCPF_DISABLING},

	{BFA_SM(bfa_iocpf_sm_disabled), BFA_IOCPF_DISABLED},

};
@@ -497,7 +505,7 @@ bfa_ioc_sm_fail_retry_entry(struct bfa_ioc_s *ioc) 
}



/*

 * Hardware initialization failed.

 * Hardware initialization retry.

 */

static void

bfa_ioc_sm_fail_retry(struct bfa_ioc_s *ioc, enum ioc_event event)
@@ -519,6 +527,10 @@ bfa_ioc_sm_fail_retry(struct bfa_ioc_s *ioc, enum ioc_event event) 
			bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_INITFAIL);

		break;



	case IOC_E_INITFAILED:

		bfa_fsm_set_state(ioc, bfa_ioc_sm_fail);

		break;



	case IOC_E_ENABLE:

		break;
@@ -561,6 +573,11 @@ bfa_ioc_sm_fail(struct bfa_ioc_s *ioc, enum ioc_event event) 
		bfa_fsm_set_state(ioc, bfa_ioc_sm_disabling);

		break;



	case IOC_E_DETACH:

		bfa_fsm_set_state(ioc, bfa_ioc_sm_uninit);

		bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_STOP);

		break;



	case IOC_E_HWERROR:

		/*

		 * HB failure notification, ignore.
@@ -630,8 +647,15 @@ bfa_iocpf_sm_fwcheck(struct bfa_iocpf_s *iocpf, enum iocpf_event event) 
	switch (event) {

	case IOCPF_E_SEMLOCKED:

		if (bfa_ioc_firmware_lock(ioc)) {

			if (bfa_ioc_sync_complete(ioc)) {

				iocpf->retry_count = 0;

				bfa_ioc_sync_join(ioc);

				bfa_fsm_set_state(iocpf, bfa_iocpf_sm_hwinit);

			} else {

				bfa_ioc_firmware_unlock(ioc);

				writel(1, ioc->ioc_regs.ioc_sem_reg);

				bfa_sem_timer_start(ioc);

			}

		} else {

			writel(1, ioc->ioc_regs.ioc_sem_reg);

			bfa_fsm_set_state(iocpf, bfa_iocpf_sm_mismatch);
@@ -722,13 +746,18 @@ bfa_iocpf_sm_semwait(struct bfa_iocpf_s *iocpf, enum iocpf_event event) 


	switch (event) {

	case IOCPF_E_SEMLOCKED:

		iocpf->retry_count = 0;

		if (bfa_ioc_sync_complete(ioc)) {

			bfa_ioc_sync_join(ioc);

			bfa_fsm_set_state(iocpf, bfa_iocpf_sm_hwinit);

		} else {

			writel(1, ioc->ioc_regs.ioc_sem_reg);

			bfa_sem_timer_start(ioc);

		}

		break;



	case IOCPF_E_DISABLE:

		bfa_sem_timer_stop(ioc);

		bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabled);

		bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabling_sync);

		break;



	default:
@@ -767,23 +796,16 @@ bfa_iocpf_sm_hwinit(struct bfa_iocpf_s *iocpf, enum iocpf_event event) 
		 */



	case IOCPF_E_TIMEOUT:

		iocpf->retry_count++;

		if (iocpf->retry_count < BFA_IOC_HWINIT_MAX) {

			bfa_iocpf_timer_start(ioc);

			bfa_ioc_hwinit(ioc, BFA_TRUE);

			break;

		}



		writel(1, ioc->ioc_regs.ioc_sem_reg);

		bfa_fsm_set_state(iocpf, bfa_iocpf_sm_initfail);



		if (event == IOCPF_E_TIMEOUT)

			bfa_fsm_send_event(ioc, IOC_E_PFFAILED);

		bfa_fsm_set_state(iocpf, bfa_iocpf_sm_initfail_sync);

		break;



	case IOCPF_E_DISABLE:

		writel(1, ioc->ioc_regs.ioc_sem_reg);

		bfa_iocpf_timer_stop(ioc);

		bfa_ioc_sync_leave(ioc);

		writel(1, ioc->ioc_regs.ioc_sem_reg);

		bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabled);

		break;
@@ -824,18 +846,10 @@ bfa_iocpf_sm_enabling(struct bfa_iocpf_s *iocpf, enum iocpf_event event) 
		 */



	case IOCPF_E_TIMEOUT:

		iocpf->retry_count++;

		if (iocpf->retry_count < BFA_IOC_HWINIT_MAX) {

			writel(BFI_IOC_UNINIT, ioc->ioc_regs.ioc_fwstate);

			bfa_fsm_set_state(iocpf, bfa_iocpf_sm_hwinit);

			break;

		}



		writel(1, ioc->ioc_regs.ioc_sem_reg);

		bfa_fsm_set_state(iocpf, bfa_iocpf_sm_initfail);



		if (event == IOCPF_E_TIMEOUT)

			bfa_fsm_send_event(ioc, IOC_E_PFFAILED);

		bfa_fsm_set_state(iocpf, bfa_iocpf_sm_initfail_sync);

		break;



	case IOCPF_E_DISABLE:
@@ -872,20 +886,21 @@ bfa_iocpf_sm_ready(struct bfa_iocpf_s *iocpf, enum iocpf_event event) 
		break;



	case IOCPF_E_GETATTRFAIL:

		bfa_fsm_set_state(iocpf, bfa_iocpf_sm_initfail);

		bfa_fsm_set_state(iocpf, bfa_iocpf_sm_initfail_sync);

		break;



	case IOCPF_E_FAIL:

		bfa_fsm_set_state(iocpf, bfa_iocpf_sm_fail);

		bfa_fsm_set_state(iocpf, bfa_iocpf_sm_fail_sync);

		break;



	case IOCPF_E_FWREADY:

		if (bfa_fsm_cmp_state(ioc, bfa_ioc_sm_op))

			bfa_fsm_set_state(iocpf, bfa_iocpf_sm_fail);

		else

			bfa_fsm_set_state(iocpf, bfa_iocpf_sm_initfail);



		if (bfa_ioc_is_operational(ioc)) {

			bfa_fsm_send_event(ioc, IOC_E_PFFAILED);

			bfa_fsm_set_state(iocpf, bfa_iocpf_sm_fail_sync);

		} else {

			bfa_fsm_send_event(ioc, IOC_E_PFFAILED);

			bfa_fsm_set_state(iocpf, bfa_iocpf_sm_initfail_sync);

		}

		break;



	default:
@@ -914,7 +929,7 @@ bfa_iocpf_sm_disabling(struct bfa_iocpf_s *iocpf, enum iocpf_event event) 
	case IOCPF_E_FWRSP_DISABLE:

	case IOCPF_E_FWREADY:

		bfa_iocpf_timer_stop(ioc);

		bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabled);

		bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabling_sync);

		break;



	case IOCPF_E_FAIL:
@@ -925,7 +940,7 @@ bfa_iocpf_sm_disabling(struct bfa_iocpf_s *iocpf, enum iocpf_event event) 


	case IOCPF_E_TIMEOUT:

		writel(BFI_IOC_FAIL, ioc->ioc_regs.ioc_fwstate);

		bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabled);

		bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabling_sync);

		break;



	case IOCPF_E_FWRSP_ENABLE:
@@ -936,6 +951,37 @@ bfa_iocpf_sm_disabling(struct bfa_iocpf_s *iocpf, enum iocpf_event event) 
	}

}



static void

bfa_iocpf_sm_disabling_sync_entry(struct bfa_iocpf_s *iocpf)

{

	bfa_ioc_hw_sem_get(iocpf->ioc);

}



/**

 * IOC hb ack request is being removed.

 */

static void

bfa_iocpf_sm_disabling_sync(struct bfa_iocpf_s *iocpf, enum iocpf_event event)

{

	struct bfa_ioc_s *ioc = iocpf->ioc;



	bfa_trc(ioc, event);



	switch (event) {

	case IOCPF_E_SEMLOCKED:

		bfa_ioc_sync_leave(ioc);

		writel(1, ioc->ioc_regs.ioc_sem_reg);

		bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabled);

		break;



	case IOCPF_E_FAIL:

		break;



	default:

		bfa_sm_fault(ioc, event);

	}

}



/*

 * IOC disable completion entry.

 */
@@ -954,14 +1000,70 @@ bfa_iocpf_sm_disabled(struct bfa_iocpf_s *iocpf, enum iocpf_event event) 


	switch (event) {

	case IOCPF_E_ENABLE:

		iocpf->retry_count = 0;

		bfa_fsm_set_state(iocpf, bfa_iocpf_sm_semwait);

		break;



	case IOCPF_E_STOP:

		bfa_ioc_firmware_unlock(ioc);

		bfa_fsm_set_state(iocpf, bfa_iocpf_sm_reset);

		break;



	default:

		bfa_sm_fault(ioc, event);

	}

}



static void

bfa_iocpf_sm_initfail_sync_entry(struct bfa_iocpf_s *iocpf)

{

	bfa_ioc_hw_sem_get(iocpf->ioc);

}



/**

 * @brief

 * Hardware initialization failed.

 */

static void

bfa_iocpf_sm_initfail_sync(struct bfa_iocpf_s *iocpf, enum iocpf_event event)

{

	struct bfa_ioc_s *ioc = iocpf->ioc;



	bfa_trc(ioc, event);



	switch (event) {

	case IOCPF_E_SEMLOCKED:

		bfa_ioc_notify_fail(ioc);

		bfa_ioc_sync_ack(ioc);

		iocpf->retry_count++;

		if (iocpf->retry_count >= BFA_IOC_HWINIT_MAX) {

			bfa_ioc_sync_leave(ioc);

			writel(1, ioc->ioc_regs.ioc_sem_reg);

			bfa_fsm_set_state(iocpf, bfa_iocpf_sm_initfail);

		} else {

			if (bfa_ioc_sync_complete(ioc))

				bfa_fsm_set_state(iocpf, bfa_iocpf_sm_hwinit);

			else {

				writel(1, ioc->ioc_regs.ioc_sem_reg);

				bfa_fsm_set_state(iocpf, bfa_iocpf_sm_semwait);

			}

		}

		break;



	case IOCPF_E_DISABLE:

		bfa_sem_timer_stop(ioc);

		bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabling_sync);

		break;



	case IOCPF_E_STOP:

		bfa_sem_timer_stop(ioc);

		bfa_ioc_firmware_unlock(ioc);

		bfa_fsm_set_state(iocpf, bfa_iocpf_sm_reset);

		break;



	case IOCPF_E_FAIL:

		break;



	default:

		bfa_sm_fault(ioc, event);

	}
@@ -970,7 +1072,7 @@ bfa_iocpf_sm_disabled(struct bfa_iocpf_s *iocpf, enum iocpf_event event) 
static void

bfa_iocpf_sm_initfail_entry(struct bfa_iocpf_s *iocpf)

{

	bfa_iocpf_timer_start(iocpf->ioc);

	bfa_fsm_send_event(iocpf->ioc, IOC_E_INITFAILED);

}



/*
@@ -985,46 +1087,77 @@ bfa_iocpf_sm_initfail(struct bfa_iocpf_s *iocpf, enum iocpf_event event) 


	switch (event) {

	case IOCPF_E_DISABLE:

		bfa_iocpf_timer_stop(ioc);

		bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabled);

		break;



	case IOCPF_E_STOP:

		bfa_iocpf_timer_stop(ioc);

		bfa_ioc_firmware_unlock(ioc);

		bfa_fsm_set_state(iocpf, bfa_iocpf_sm_reset);

		break;



	case IOCPF_E_TIMEOUT:

		bfa_fsm_set_state(iocpf, bfa_iocpf_sm_semwait);

		break;



	default:

		bfa_sm_fault(ioc, event);

	}

}



static void

bfa_iocpf_sm_fail_entry(struct bfa_iocpf_s *iocpf)

bfa_iocpf_sm_fail_sync_entry(struct bfa_iocpf_s *iocpf)

{

	/*

	/**

	 * Mark IOC as failed in hardware and stop firmware.

	 */

	bfa_ioc_lpu_stop(iocpf->ioc);

	writel(BFI_IOC_FAIL, iocpf->ioc->ioc_regs.ioc_fwstate);



	/*

	 * Notify other functions on HB failure.

	 */

	bfa_ioc_notify_hbfail(iocpf->ioc);



	/*

	/**

	 * Flush any queued up mailbox requests.

	 */

	bfa_ioc_mbox_hbfail(iocpf->ioc);



	if (iocpf->auto_recover)

		bfa_iocpf_recovery_timer_start(iocpf->ioc);

	bfa_ioc_hw_sem_get(iocpf->ioc);

}



static void

bfa_iocpf_sm_fail_sync(struct bfa_iocpf_s *iocpf, enum iocpf_event event)

{

	struct bfa_ioc_s *ioc = iocpf->ioc;



	bfa_trc(ioc, event);



	switch (event) {

	case IOCPF_E_SEMLOCKED:

		iocpf->retry_count = 0;

		bfa_ioc_sync_ack(ioc);

		bfa_ioc_notify_fail(ioc);

		if (!iocpf->auto_recover) {

			bfa_ioc_sync_leave(ioc);

			writel(1, ioc->ioc_regs.ioc_sem_reg);

			bfa_fsm_set_state(iocpf, bfa_iocpf_sm_fail);

		} else {

			if (bfa_ioc_sync_complete(ioc))

				bfa_fsm_set_state(iocpf, bfa_iocpf_sm_hwinit);

			else {

				writel(1, ioc->ioc_regs.ioc_sem_reg);

				bfa_fsm_set_state(iocpf, bfa_iocpf_sm_semwait);

			}

		}

		break;



	case IOCPF_E_DISABLE:

		bfa_sem_timer_stop(ioc);

		bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabling_sync);

		break;



	case IOCPF_E_FAIL:

		break;



	default:

		bfa_sm_fault(ioc, event);

	}

}



static void

bfa_iocpf_sm_fail_entry(struct bfa_iocpf_s *iocpf)

{

}



/*
@@ -1039,15 +1172,9 @@ bfa_iocpf_sm_fail(struct bfa_iocpf_s *iocpf, enum iocpf_event event) 


	switch (event) {

	case IOCPF_E_DISABLE:

		if (iocpf->auto_recover)

			bfa_iocpf_timer_stop(ioc);

		bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabled);

		break;



	case IOCPF_E_TIMEOUT:

		bfa_fsm_set_state(iocpf, bfa_iocpf_sm_semwait);

		break;



	default:

		bfa_sm_fault(ioc, event);

	}
@@ -1438,7 +1565,6 @@ bfa_ioc_hb_check(void *cbarg) 


	hb_count = readl(ioc->ioc_regs.heartbeat);

	if (ioc->hb_count == hb_count) {

		printk(KERN_CRIT "Firmware heartbeat failure at %d", hb_count);

		bfa_ioc_recover(ioc);

		return;

	} else {
@@ -2153,6 +2279,16 @@ bfa_ioc_adapter_is_disabled(struct bfa_ioc_s *ioc) 
	return BFA_TRUE;

}



/**

 * Reset IOC fwstate registers.

 */

void

bfa_ioc_reset_fwstate(struct bfa_ioc_s *ioc)

{

	writel(BFI_IOC_UNINIT, ioc->ioc_regs.ioc_fwstate);

	writel(BFI_IOC_UNINIT, ioc->ioc_regs.alt_ioc_fwstate);

}



#define BFA_MFG_NAME "Brocade"

void

bfa_ioc_get_adapter_attr(struct bfa_ioc_s *ioc,

drivers/scsi/bfa/bfa_ioc.h

+18 −1
Original line number Diff line number Diff line
@@ -149,8 +149,11 @@ struct bfa_ioc_regs_s { 
	void __iomem *host_page_num_fn;

	void __iomem *heartbeat;

	void __iomem *ioc_fwstate;

	void __iomem *alt_ioc_fwstate;

	void __iomem *ll_halt;

	void __iomem *alt_ll_halt;

	void __iomem *err_set;

	void __iomem *ioc_fail_sync;

	void __iomem *shirq_isr_next;

	void __iomem *shirq_msk_next;

	void __iomem *smem_page_start;
@@ -258,8 +261,12 @@ struct bfa_ioc_hwif_s { 
	void		(*ioc_map_port)	(struct bfa_ioc_s *ioc);

	void		(*ioc_isr_mode_set)	(struct bfa_ioc_s *ioc,

					bfa_boolean_t msix);

	void		(*ioc_notify_hbfail)	(struct bfa_ioc_s *ioc);

	void		(*ioc_notify_fail)	(struct bfa_ioc_s *ioc);

	void		(*ioc_ownership_reset)	(struct bfa_ioc_s *ioc);

	void		(*ioc_sync_join)	(struct bfa_ioc_s *ioc);

	void		(*ioc_sync_leave)	(struct bfa_ioc_s *ioc);

	void		(*ioc_sync_ack)		(struct bfa_ioc_s *ioc);

	bfa_boolean_t	(*ioc_sync_complete)	(struct bfa_ioc_s *ioc);

};



#define bfa_ioc_pcifn(__ioc)		((__ioc)->pcidev.pci_func)
@@ -289,6 +296,15 @@ struct bfa_ioc_hwif_s { 
#define BFA_IOC_FLASH_OFFSET_IN_CHUNK(off)	(off % BFI_FLASH_CHUNK_SZ_WORDS)

#define BFA_IOC_FLASH_CHUNK_ADDR(chunkno)  (chunkno * BFI_FLASH_CHUNK_SZ_WORDS)



#ifdef BFA_IOC_IS_UEFI

#define bfa_ioc_is_bios_optrom(__ioc) (0)

#define bfa_ioc_is_uefi(__ioc) BFA_IOC_IS_UEFI

#else

#define bfa_ioc_is_bios_optrom(__ioc)   \

	(bfa_cb_image_get_size(BFA_IOC_FWIMG_TYPE(__ioc)) < BFA_IOC_FWIMG_MINSZ)

#define bfa_ioc_is_uefi(__ioc) (0)

#endif



/*

 * IOC mailbox interface

 */
@@ -343,6 +359,7 @@ bfa_boolean_t bfa_ioc_is_initialized(struct bfa_ioc_s *ioc); 
bfa_boolean_t bfa_ioc_is_disabled(struct bfa_ioc_s *ioc);

bfa_boolean_t bfa_ioc_fw_mismatch(struct bfa_ioc_s *ioc);

bfa_boolean_t bfa_ioc_adapter_is_disabled(struct bfa_ioc_s *ioc);

void bfa_ioc_reset_fwstate(struct bfa_ioc_s *ioc);

enum bfa_ioc_type_e bfa_ioc_get_type(struct bfa_ioc_s *ioc);

void bfa_ioc_get_adapter_serial_num(struct bfa_ioc_s *ioc, char *serial_num);

void bfa_ioc_get_adapter_fw_ver(struct bfa_ioc_s *ioc, char *fw_ver);

drivers/scsi/bfa/bfa_ioc_cb.c

+91 −4
Original line number Diff line number Diff line
@@ -30,8 +30,12 @@ static void bfa_ioc_cb_firmware_unlock(struct bfa_ioc_s *ioc); 
static void bfa_ioc_cb_reg_init(struct bfa_ioc_s *ioc);

static void bfa_ioc_cb_map_port(struct bfa_ioc_s *ioc);

static void bfa_ioc_cb_isr_mode_set(struct bfa_ioc_s *ioc, bfa_boolean_t msix);

static void bfa_ioc_cb_notify_hbfail(struct bfa_ioc_s *ioc);

static void bfa_ioc_cb_notify_fail(struct bfa_ioc_s *ioc);

static void bfa_ioc_cb_ownership_reset(struct bfa_ioc_s *ioc);

static void bfa_ioc_cb_sync_join(struct bfa_ioc_s *ioc);

static void bfa_ioc_cb_sync_leave(struct bfa_ioc_s *ioc);

static void bfa_ioc_cb_sync_ack(struct bfa_ioc_s *ioc);

static bfa_boolean_t bfa_ioc_cb_sync_complete(struct bfa_ioc_s *ioc);



static struct bfa_ioc_hwif_s hwif_cb;
@@ -47,18 +51,38 @@ bfa_ioc_set_cb_hwif(struct bfa_ioc_s *ioc) 
	hwif_cb.ioc_reg_init = bfa_ioc_cb_reg_init;

	hwif_cb.ioc_map_port = bfa_ioc_cb_map_port;

	hwif_cb.ioc_isr_mode_set = bfa_ioc_cb_isr_mode_set;

	hwif_cb.ioc_notify_hbfail = bfa_ioc_cb_notify_hbfail;

	hwif_cb.ioc_notify_fail = bfa_ioc_cb_notify_fail;

	hwif_cb.ioc_ownership_reset = bfa_ioc_cb_ownership_reset;

	hwif_cb.ioc_sync_join = bfa_ioc_cb_sync_join;

	hwif_cb.ioc_sync_leave = bfa_ioc_cb_sync_leave;

	hwif_cb.ioc_sync_ack = bfa_ioc_cb_sync_ack;

	hwif_cb.ioc_sync_complete = bfa_ioc_cb_sync_complete;



	ioc->ioc_hwif = &hwif_cb;

}



/*

/**

 * Return true if firmware of current driver matches the running firmware.

 */

static bfa_boolean_t

bfa_ioc_cb_firmware_lock(struct bfa_ioc_s *ioc)

{

	struct bfi_ioc_image_hdr_s fwhdr;

	uint32_t fwstate = readl(ioc->ioc_regs.ioc_fwstate);



	if ((fwstate == BFI_IOC_UNINIT) || bfa_ioc_is_uefi(ioc) ||

				bfa_ioc_is_bios_optrom(ioc))

		return BFA_TRUE;



	bfa_ioc_fwver_get(ioc, &fwhdr);



	if (swab32(fwhdr.exec) == BFI_BOOT_TYPE_NORMAL)

		return BFA_TRUE;



	bfa_trc(ioc, fwstate);

	bfa_trc(ioc, fwhdr.exec);

	writel(BFI_IOC_UNINIT, ioc->ioc_regs.ioc_fwstate);



	return BFA_TRUE;

}
@@ -71,7 +95,7 @@ bfa_ioc_cb_firmware_unlock(struct bfa_ioc_s *ioc) 
 * Notify other functions on HB failure.

 */

static void

bfa_ioc_cb_notify_hbfail(struct bfa_ioc_s *ioc)

bfa_ioc_cb_notify_fail(struct bfa_ioc_s *ioc)

{

	writel(__PSS_ERR_STATUS_SET, ioc->ioc_regs.err_set);

	readl(ioc->ioc_regs.err_set);
@@ -109,9 +133,11 @@ bfa_ioc_cb_reg_init(struct bfa_ioc_s *ioc) 
	if (ioc->port_id == 0) {

		ioc->ioc_regs.heartbeat = rb + BFA_IOC0_HBEAT_REG;

		ioc->ioc_regs.ioc_fwstate = rb + BFA_IOC0_STATE_REG;

		ioc->ioc_regs.alt_ioc_fwstate = rb + BFA_IOC1_STATE_REG;

	} else {

		ioc->ioc_regs.heartbeat = (rb + BFA_IOC1_HBEAT_REG);

		ioc->ioc_regs.ioc_fwstate = (rb + BFA_IOC1_STATE_REG);

		ioc->ioc_regs.alt_ioc_fwstate = (rb + BFA_IOC0_STATE_REG);

	}



	/*
@@ -185,7 +211,68 @@ bfa_ioc_cb_ownership_reset(struct bfa_ioc_s *ioc) 
	writel(1, ioc->ioc_regs.ioc_sem_reg);

}



/**

 * Synchronized IOC failure processing routines

 */

static void

bfa_ioc_cb_sync_join(struct bfa_ioc_s *ioc)

{

}



static void

bfa_ioc_cb_sync_leave(struct bfa_ioc_s *ioc)

{

}



static void

bfa_ioc_cb_sync_ack(struct bfa_ioc_s *ioc)

{

	writel(BFI_IOC_FAIL, ioc->ioc_regs.ioc_fwstate);

}



static bfa_boolean_t

bfa_ioc_cb_sync_complete(struct bfa_ioc_s *ioc)

{

	uint32_t fwstate, alt_fwstate;

	fwstate = readl(ioc->ioc_regs.ioc_fwstate);



	/**

	 * At this point, this IOC is hoding the hw sem in the

	 * start path (fwcheck) OR in the disable/enable path

	 * OR to check if the other IOC has acknowledged failure.

	 *

	 * So, this IOC can be in UNINIT, INITING, DISABLED, FAIL

	 * or in MEMTEST states. In a normal scenario, this IOC

	 * can not be in OP state when this function is called.

	 *

	 * However, this IOC could still be in OP state when

	 * the OS driver is starting up, if the OptROM code has

	 * left it in that state.

	 *

	 * If we had marked this IOC's fwstate as BFI_IOC_FAIL

	 * in the failure case and now, if the fwstate is not

	 * BFI_IOC_FAIL it implies that the other PCI fn have

	 * reinitialized the ASIC or this IOC got disabled, so

	 * return TRUE.

	 */

	if (fwstate == BFI_IOC_UNINIT ||

		fwstate == BFI_IOC_INITING ||

		fwstate == BFI_IOC_DISABLED ||

		fwstate == BFI_IOC_MEMTEST ||

		fwstate == BFI_IOC_OP)

		return BFA_TRUE;

	else {

		alt_fwstate = readl(ioc->ioc_regs.alt_ioc_fwstate);

		if (alt_fwstate == BFI_IOC_FAIL ||

			alt_fwstate == BFI_IOC_DISABLED ||

			alt_fwstate == BFI_IOC_UNINIT ||

			alt_fwstate == BFI_IOC_INITING ||

			alt_fwstate == BFI_IOC_MEMTEST)

			return BFA_TRUE;

		else

			return BFA_FALSE;

	}

}



bfa_status_t

bfa_ioc_cb_pll_init(void __iomem *rb, bfa_boolean_t fcmode)

drivers/scsi/bfa/bfa_ioc_ct.c

+98 −3
Original line number Diff line number Diff line
@@ -22,6 +22,15 @@ 


BFA_TRC_FILE(CNA, IOC_CT);



#define bfa_ioc_ct_sync_pos(__ioc)      \

		((uint32_t) (1 << bfa_ioc_pcifn(__ioc)))

#define BFA_IOC_SYNC_REQD_SH    16

#define bfa_ioc_ct_get_sync_ackd(__val) (__val & 0x0000ffff)

#define bfa_ioc_ct_clear_sync_ackd(__val)       (__val & 0xffff0000)

#define bfa_ioc_ct_get_sync_reqd(__val) (__val >> BFA_IOC_SYNC_REQD_SH)

#define bfa_ioc_ct_sync_reqd_pos(__ioc) \

			(bfa_ioc_ct_sync_pos(__ioc) << BFA_IOC_SYNC_REQD_SH)



/*

 * forward declarations

 */
@@ -30,8 +39,12 @@ static void bfa_ioc_ct_firmware_unlock(struct bfa_ioc_s *ioc); 
static void bfa_ioc_ct_reg_init(struct bfa_ioc_s *ioc);

static void bfa_ioc_ct_map_port(struct bfa_ioc_s *ioc);

static void bfa_ioc_ct_isr_mode_set(struct bfa_ioc_s *ioc, bfa_boolean_t msix);

static void bfa_ioc_ct_notify_hbfail(struct bfa_ioc_s *ioc);

static void bfa_ioc_ct_notify_fail(struct bfa_ioc_s *ioc);

static void bfa_ioc_ct_ownership_reset(struct bfa_ioc_s *ioc);

static void bfa_ioc_ct_sync_join(struct bfa_ioc_s *ioc);

static void bfa_ioc_ct_sync_leave(struct bfa_ioc_s *ioc);

static void bfa_ioc_ct_sync_ack(struct bfa_ioc_s *ioc);

static bfa_boolean_t bfa_ioc_ct_sync_complete(struct bfa_ioc_s *ioc);



static struct bfa_ioc_hwif_s hwif_ct;
@@ -47,8 +60,12 @@ bfa_ioc_set_ct_hwif(struct bfa_ioc_s *ioc) 
	hwif_ct.ioc_reg_init = bfa_ioc_ct_reg_init;

	hwif_ct.ioc_map_port = bfa_ioc_ct_map_port;

	hwif_ct.ioc_isr_mode_set = bfa_ioc_ct_isr_mode_set;

	hwif_ct.ioc_notify_hbfail = bfa_ioc_ct_notify_hbfail;

	hwif_ct.ioc_notify_fail = bfa_ioc_ct_notify_fail;

	hwif_ct.ioc_ownership_reset = bfa_ioc_ct_ownership_reset;

	hwif_ct.ioc_sync_join = bfa_ioc_ct_sync_join;

	hwif_ct.ioc_sync_leave = bfa_ioc_ct_sync_leave;

	hwif_ct.ioc_sync_ack = bfa_ioc_ct_sync_ack;

	hwif_ct.ioc_sync_complete = bfa_ioc_ct_sync_complete;



	ioc->ioc_hwif = &hwif_ct;

}
@@ -85,6 +102,7 @@ bfa_ioc_ct_firmware_lock(struct bfa_ioc_s *ioc) 
	if (usecnt == 0) {

		writel(1, ioc->ioc_regs.ioc_usage_reg);

		writel(1, ioc->ioc_regs.ioc_usage_sem_reg);

		writel(0, ioc->ioc_regs.ioc_fail_sync);

		bfa_trc(ioc, usecnt);

		return BFA_TRUE;

	}
@@ -153,12 +171,14 @@ bfa_ioc_ct_firmware_unlock(struct bfa_ioc_s *ioc) 
 * Notify other functions on HB failure.

 */

static void

bfa_ioc_ct_notify_hbfail(struct bfa_ioc_s *ioc)

bfa_ioc_ct_notify_fail(struct bfa_ioc_s *ioc)

{

	if (ioc->cna) {

		writel(__FW_INIT_HALT_P, ioc->ioc_regs.ll_halt);

		writel(__FW_INIT_HALT_P, ioc->ioc_regs.alt_ll_halt);

		/* Wait for halt to take effect */

		readl(ioc->ioc_regs.ll_halt);

		readl(ioc->ioc_regs.alt_ll_halt);

	} else {

		writel(__PSS_ERR_STATUS_SET, ioc->ioc_regs.err_set);

		readl(ioc->ioc_regs.err_set);
@@ -210,15 +230,19 @@ bfa_ioc_ct_reg_init(struct bfa_ioc_s *ioc) 
	if (ioc->port_id == 0) {

		ioc->ioc_regs.heartbeat = rb + BFA_IOC0_HBEAT_REG;

		ioc->ioc_regs.ioc_fwstate = rb + BFA_IOC0_STATE_REG;

		ioc->ioc_regs.alt_ioc_fwstate = rb + BFA_IOC1_STATE_REG;

		ioc->ioc_regs.hfn_mbox_cmd = rb + iocreg_mbcmd_p0[pcifn].hfn;

		ioc->ioc_regs.lpu_mbox_cmd = rb + iocreg_mbcmd_p0[pcifn].lpu;

		ioc->ioc_regs.ll_halt = rb + FW_INIT_HALT_P0;

		ioc->ioc_regs.alt_ll_halt = rb + FW_INIT_HALT_P1;

	} else {

		ioc->ioc_regs.heartbeat = (rb + BFA_IOC1_HBEAT_REG);

		ioc->ioc_regs.ioc_fwstate = (rb + BFA_IOC1_STATE_REG);

		ioc->ioc_regs.alt_ioc_fwstate = rb + BFA_IOC0_STATE_REG;

		ioc->ioc_regs.hfn_mbox_cmd = rb + iocreg_mbcmd_p1[pcifn].hfn;

		ioc->ioc_regs.lpu_mbox_cmd = rb + iocreg_mbcmd_p1[pcifn].lpu;

		ioc->ioc_regs.ll_halt = rb + FW_INIT_HALT_P1;

		ioc->ioc_regs.alt_ll_halt = rb + FW_INIT_HALT_P0;

	}



	/*
@@ -236,6 +260,7 @@ bfa_ioc_ct_reg_init(struct bfa_ioc_s *ioc) 
	ioc->ioc_regs.ioc_usage_sem_reg = (rb + HOST_SEM1_REG);

	ioc->ioc_regs.ioc_init_sem_reg = (rb + HOST_SEM2_REG);

	ioc->ioc_regs.ioc_usage_reg = (rb + BFA_FW_USE_COUNT);

	ioc->ioc_regs.ioc_fail_sync = (rb + BFA_IOC_FAIL_SYNC);



	/*

	 * sram memory access
@@ -326,7 +351,77 @@ bfa_ioc_ct_ownership_reset(struct bfa_ioc_s *ioc) 
	writel(1, ioc->ioc_regs.ioc_sem_reg);

}



/**

 * Synchronized IOC failure processing routines

 */

static void

bfa_ioc_ct_sync_join(struct bfa_ioc_s *ioc)

{

	uint32_t r32 = readl(ioc->ioc_regs.ioc_fail_sync);

	uint32_t sync_pos = bfa_ioc_ct_sync_reqd_pos(ioc);



	writel((r32 | sync_pos), ioc->ioc_regs.ioc_fail_sync);

}



static void

bfa_ioc_ct_sync_leave(struct bfa_ioc_s *ioc)

{

	uint32_t r32 = readl(ioc->ioc_regs.ioc_fail_sync);

	uint32_t sync_msk = bfa_ioc_ct_sync_reqd_pos(ioc) |

					bfa_ioc_ct_sync_pos(ioc);



	writel((r32 & ~sync_msk), ioc->ioc_regs.ioc_fail_sync);

}



static void

bfa_ioc_ct_sync_ack(struct bfa_ioc_s *ioc)

{

	uint32_t r32 = readl(ioc->ioc_regs.ioc_fail_sync);



	writel((r32 | bfa_ioc_ct_sync_pos(ioc)),

		ioc->ioc_regs.ioc_fail_sync);

}



static bfa_boolean_t

bfa_ioc_ct_sync_complete(struct bfa_ioc_s *ioc)

{

	uint32_t r32 = readl(ioc->ioc_regs.ioc_fail_sync);

	uint32_t sync_reqd = bfa_ioc_ct_get_sync_reqd(r32);

	uint32_t sync_ackd = bfa_ioc_ct_get_sync_ackd(r32);

	uint32_t tmp_ackd;



	if (sync_ackd == 0)

		return BFA_TRUE;



	/**

	 * The check below is to see whether any other PCI fn

	 * has reinitialized the ASIC (reset sync_ackd bits)

	 * and failed again while this IOC was waiting for hw

	 * semaphore (in bfa_iocpf_sm_semwait()).

	 */

	tmp_ackd = sync_ackd;

	if ((sync_reqd &  bfa_ioc_ct_sync_pos(ioc)) &&

		!(sync_ackd & bfa_ioc_ct_sync_pos(ioc)))

		sync_ackd |= bfa_ioc_ct_sync_pos(ioc);



	if (sync_reqd == sync_ackd) {

		writel(bfa_ioc_ct_clear_sync_ackd(r32),

			ioc->ioc_regs.ioc_fail_sync);

		writel(BFI_IOC_FAIL, ioc->ioc_regs.ioc_fwstate);

		writel(BFI_IOC_FAIL, ioc->ioc_regs.alt_ioc_fwstate);

		return BFA_TRUE;

	}



	/**

	 * If another PCI fn reinitialized and failed again while

	 * this IOC was waiting for hw sem, the sync_ackd bit for

	 * this IOC need to be set again to allow reinitialization.

	 */

	if (tmp_ackd != sync_ackd)

		writel((r32 | sync_ackd), ioc->ioc_regs.ioc_fail_sync);



	return BFA_FALSE;

}



/*

 * Check the firmware state to know if pll_init has been completed already

drivers/scsi/bfa/bfi_cbreg.h

+1 −0
Original line number Diff line number Diff line
@@ -208,6 +208,7 @@ 
#define BFA_IOC1_HBEAT_REG               HOST_SEM2_INFO_REG

#define BFA_IOC1_STATE_REG               HOST_SEM3_INFO_REG

#define BFA_FW_USE_COUNT                 HOST_SEM4_INFO_REG

#define BFA_IOC_FAIL_SYNC		 HOST_SEM5_INFO_REG



#define CPE_Q_DEPTH(__n) \

	(CPE_Q0_DEPTH + (__n) * (CPE_Q1_DEPTH - CPE_Q0_DEPTH))