[SCSI] bfa: Brocade-1860 Fabric Adapter PLL init fixes.

- If flash controller is halted unconditionally, this results in
  illegal write access to flash controller register domain. Since
  flash controller registers are only accessible once s_clk is started
  - added logic to check for WGN status and halt flash controller only
  if it is already running.
- Added check to wait for flash controller halt to be completed before
  proceeding with s_clk/l_clk initializations.
- Removed unnecessary reset logic for PMM 1T memory and moved memory
  initialization after flash access enable.
- Disable Brocade-1860 asic MBOX interrupt before PLL initialization.
- Remove reset enable for S_CLK/L_CLK after both PLL initializations
  are complete.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

drivers/scsi/bfa/bfa_core.c

@@ -251,7 +251,39 @@ bfa_isr_reqq(struct bfa_s *bfa, int qid)
 void
 bfa_msix_all(struct bfa_s *bfa, int vec)
 {
-	bfa_intx(bfa);
+	u32	intr, qintr;
+	int	queue;
+
+	intr = readl(bfa->iocfc.bfa_regs.intr_status);
+	if (!intr)
+		return;
+
+	/*
+	 * RME completion queue interrupt
+	 */
+	qintr = intr & __HFN_INT_RME_MASK;
+	if (qintr && bfa->queue_process) {
+		for (queue = 0; queue < BFI_IOC_MAX_CQS; queue++)
+			bfa_isr_rspq(bfa, queue);
+	}
+
+	intr &= ~qintr;
+	if (!intr)
+		return;
+
+	/*
+	 * CPE completion queue interrupt
+	 */
+	qintr = intr & __HFN_INT_CPE_MASK;
+	if (qintr && bfa->queue_process) {
+		for (queue = 0; queue < BFI_IOC_MAX_CQS; queue++)
+			bfa_isr_reqq(bfa, queue);
+	}
+	intr &= ~qintr;
+	if (!intr)
+		return;
+
+	bfa_msix_lpu_err(bfa, intr);
 }
 
 bfa_boolean_t
@@ -469,6 +501,9 @@ bfa_iocfc_send_cfg(void *bfa_arg)
 	/*
 	 * initialize IOC configuration info
 	 */
+	cfg_info->single_msix_vec = 0;
+	if (bfa->msix.nvecs == 1)
+		cfg_info->single_msix_vec = 1;
 	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);
@@ -1080,12 +1115,6 @@ bfa_iocfc_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg,
 	ioc->trcmod = bfa->trcmod;
 	bfa_ioc_attach(&bfa->ioc, bfa, &bfa_iocfc_cbfn, &bfa->timer_mod);
 
-	/*
-	 * Set FC mode for BFA_PCI_DEVICE_ID_CT_FC.
-	 */
-	if (pcidev->device_id == BFA_PCI_DEVICE_ID_CT_FC)
-		bfa_ioc_set_fcmode(&bfa->ioc);
-
 	bfa_ioc_pci_init(&bfa->ioc, pcidev, BFI_PCIFN_CLASS_FC);
 	bfa_ioc_mbox_register(&bfa->ioc, bfa_mbox_isrs);
 

drivers/scsi/bfa/bfa_hw_cb.c

@@ -114,7 +114,7 @@ bfa_hwcb_msix_ctrl_install(struct bfa_s *bfa)
 		return;
 
 	if (bfa->msix.nvecs == 1) {
-		for (i = BFI_MSIX_RME_QMAX_CB+1; i < BFI_MSIX_CB_MAX; i++)
+		for (i = BFI_MSIX_CPE_QMIN_CB; i < BFI_MSIX_CB_MAX; i++)
 			bfa->msix.handler[i] = bfa_msix_all;
 		return;
 	}

drivers/scsi/bfa/bfa_ioc.c

@@ -2399,12 +2399,6 @@ bfa_ioc_error_isr(struct bfa_ioc_s *ioc)
 	bfa_fsm_send_event(ioc, IOC_E_HWERROR);
 }
 
-void
-bfa_ioc_set_fcmode(struct bfa_ioc_s *ioc)
-{
-	ioc->fcmode  = BFA_TRUE;
-}
-
 /*
  * return true if IOC is disabled
  */
@@ -2592,35 +2586,7 @@ bfa_ioc_get_adapter_model(struct bfa_ioc_s *ioc, char *model)
 
 	ioc_attr = ioc->attr;
 
-	/*
-	 * model name
-	 */
-	if (ioc->asic_gen == BFI_ASIC_GEN_CT2) {
-		int np = bfa_ioc_get_nports(ioc);
-		char c;
-		switch (ioc_attr->card_type) {
-		case BFA_MFG_TYPE_PROWLER_F:
-		case BFA_MFG_TYPE_PROWLER_N:
-		case BFA_MFG_TYPE_PROWLER_C:
-			snprintf(model, BFA_ADAPTER_MODEL_NAME_LEN,
-				"%s-%u-%u",
-				BFA_MFG_NAME, ioc_attr->card_type, np);
-			break;
-		case BFA_MFG_TYPE_PROWLER_D:
-			if (ioc_attr->ic == BFA_MFG_IC_FC)
-				c = 'F';
-			else
-				c = 'P';
-
-			snprintf(model, BFA_ADAPTER_MODEL_NAME_LEN,
-				"%s-%u-%u%c",
-				BFA_MFG_NAME, ioc_attr->card_type, np, c);
-			break;
-		default:
-			break;
-		}
-	} else
-		snprintf(model, BFA_ADAPTER_MODEL_NAME_LEN, "%s-%u",
+	snprintf(model, BFA_ADAPTER_MODEL_NAME_LEN, "%s-%u",
 			BFA_MFG_NAME, ioc_attr->card_type);
 }
 
@@ -2711,12 +2677,6 @@ bfa_ioc_get_mfg_mac(struct bfa_ioc_s *ioc)
 	return m;
 }
 
-bfa_boolean_t
-bfa_ioc_get_fcmode(struct bfa_ioc_s *ioc)
-{
-	return ioc->fcmode || bfa_asic_id_cb(ioc->pcidev.device_id);
-}
-
 /*
  * Retrieve saved firmware trace from a prior IOC failure.
  */

drivers/scsi/bfa/bfa_ioc.h

@@ -362,6 +362,7 @@ bfa_status_t bfa_ioc_ct2_pll_init(void __iomem *rb, enum bfi_asic_mode mode);
 } while (0)
 #define	bfa_ioc_ownership_reset(__ioc)				\
 			((__ioc)->ioc_hwif->ioc_ownership_reset(__ioc))
+#define bfa_ioc_get_fcmode(__ioc)	((__ioc)->fcmode)
 #define bfa_ioc_lpu_read_stat(__ioc) do {			\
 	if ((__ioc)->ioc_hwif->ioc_lpu_read_stat)		\
 		((__ioc)->ioc_hwif->ioc_lpu_read_stat(__ioc));	\
@@ -414,8 +415,6 @@ bfa_status_t bfa_ioc_debug_fwtrc(struct bfa_ioc_s *ioc, void *trcdata,
 				 int *trclen);
 bfa_status_t bfa_ioc_debug_fwcore(struct bfa_ioc_s *ioc, void *buf,
 	u32 *offset, int *buflen);
-void bfa_ioc_set_fcmode(struct bfa_ioc_s *ioc);
-bfa_boolean_t bfa_ioc_get_fcmode(struct bfa_ioc_s *ioc);
 bfa_boolean_t bfa_ioc_sem_get(void __iomem *sem_reg);
 void bfa_ioc_fwver_get(struct bfa_ioc_s *ioc,
 			struct bfi_ioc_image_hdr_s *fwhdr);