[SCSI] pm80xx: Phy settings support for motherboard controller.

Phy profile implementation to support phy settings feature
for motherboard controllers.

[jejb: checkpatch fixes]
Signed-off-by: Anandkumar.Santhanam@pmcs.com
Reviewed-by: NJack Wang <jinpu.wang@profitbricks.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

drivers/scsi/pm8001/pm8001_hwi.c

@@ -4831,6 +4831,16 @@ int pm8001_chip_get_nvmd_req(struct pm8001_hba_info *pm8001_ha,
 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
 		break;
 	}
+	case IOP_RDUMP: {
+		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | IOP_RDUMP);
+		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->length);
+		nvmd_req.vpd_offset = cpu_to_le32(ioctl_payload->offset);
+		nvmd_req.resp_addr_hi =
+		cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
+		nvmd_req.resp_addr_lo =
+		cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
+		break;
+	}
 	default:
 		break;
 	}

drivers/scsi/pm8001/pm8001_init.c

@@ -667,6 +667,31 @@ static void pm8001_init_sas_add(struct pm8001_hba_info *pm8001_ha)
 #endif
 }
 
+/*
+ * pm8001_get_phy_settings_info : Read phy setting values.
+ * @pm8001_ha : our hba.
+ */
+void pm8001_get_phy_settings_info(struct pm8001_hba_info *pm8001_ha)
+{
+
+#ifdef PM8001_READ_VPD
+	/*OPTION ROM FLASH read for the SPC cards */
+	DECLARE_COMPLETION_ONSTACK(completion);
+	struct pm8001_ioctl_payload payload;
+
+	pm8001_ha->nvmd_completion = &completion;
+	/* SAS ADDRESS read from flash / EEPROM */
+	payload.minor_function = 6;
+	payload.offset = 0;
+	payload.length = 4096;
+	payload.func_specific = kzalloc(4096, GFP_KERNEL);
+	/* Read phy setting values from flash */
+	PM8001_CHIP_DISP->get_nvmd_req(pm8001_ha, &payload);
+	wait_for_completion(&completion);
+	pm8001_set_phy_profile(pm8001_ha, sizeof(u8), payload.func_specific);
+#endif
+}
+
 #ifdef PM8001_USE_MSIX
 /**
  * pm8001_setup_msix - enable MSI-X interrupt
@@ -847,6 +872,10 @@ static int pm8001_pci_probe(struct pci_dev *pdev,
 	}
 
 	pm8001_init_sas_add(pm8001_ha);
+	/* phy setting support for motherboard controller */
+	if (pdev->subsystem_vendor != PCI_VENDOR_ID_ADAPTEC2 &&
+		pdev->subsystem_vendor != 0)
+		pm8001_get_phy_settings_info(pm8001_ha);
 	pm8001_post_sas_ha_init(shost, chip);
 	rc = sas_register_ha(SHOST_TO_SAS_HA(shost));
 	if (rc)

drivers/scsi/pm8001/pm8001_sas.h

@@ -632,7 +632,8 @@ struct pm8001_device *pm8001_find_dev(struct pm8001_hba_info *pm8001_ha,
 int pm80xx_set_thermal_config(struct pm8001_hba_info *pm8001_ha);
 
 int pm8001_bar4_shift(struct pm8001_hba_info *pm8001_ha, u32 shiftValue);
-
+void pm8001_set_phy_profile(struct pm8001_hba_info *pm8001_ha,
+	u32 length, u8 *buf);
 /* ctl shared API */
 extern struct device_attribute *pm8001_host_attrs[];
 

drivers/scsi/pm8001/pm80xx_hwi.c

@@ -3183,9 +3183,27 @@ static int mpi_flash_op_ext_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
 static int mpi_set_phy_profile_resp(struct pm8001_hba_info *pm8001_ha,
 			void *piomb)
 {
-	PM8001_MSG_DBG(pm8001_ha,
-			pm8001_printk(" pm80xx_addition_functionality\n"));
+	u8 page_code;
+	struct set_phy_profile_resp *pPayload =
+		(struct set_phy_profile_resp *)(piomb + 4);
+	u32 ppc_phyid = le32_to_cpu(pPayload->ppc_phyid);
+	u32 status = le32_to_cpu(pPayload->status);
 
+	page_code = (u8)((ppc_phyid & 0xFF00) >> 8);
+	if (status) {
+		/* status is FAILED */
+		PM8001_FAIL_DBG(pm8001_ha,
+			pm8001_printk("PhyProfile command failed  with status "
+			"0x%08X \n", status));
+		return -1;
+	} else {
+		if (page_code != SAS_PHY_ANALOG_SETTINGS_PAGE) {
+			PM8001_FAIL_DBG(pm8001_ha,
+				pm8001_printk("Invalid page code 0x%X\n",
+					page_code));
+			return -1;
+		}
+	}
 	return 0;
 }
 
@@ -4281,6 +4299,45 @@ pm80xx_chip_isr(struct pm8001_hba_info *pm8001_ha, u8 vec)
 	return IRQ_HANDLED;
 }
 
+void mpi_set_phy_profile_req(struct pm8001_hba_info *pm8001_ha,
+	u32 operation, u32 phyid, u32 length, u32 *buf)
+{
+	u32 tag , i, j = 0;
+	int rc;
+	struct set_phy_profile_req payload;
+	struct inbound_queue_table *circularQ;
+	u32 opc = OPC_INB_SET_PHY_PROFILE;
+
+	memset(&payload, 0, sizeof(payload));
+	rc = pm8001_tag_alloc(pm8001_ha, &tag);
+	if (rc)
+		PM8001_FAIL_DBG(pm8001_ha, pm8001_printk("Invalid tag\n"));
+	circularQ = &pm8001_ha->inbnd_q_tbl[0];
+	payload.tag = cpu_to_le32(tag);
+	payload.ppc_phyid = (((operation & 0xF) << 8) | (phyid  & 0xFF));
+	PM8001_INIT_DBG(pm8001_ha,
+		pm8001_printk(" phy profile command for phy %x ,length is %d\n",
+			payload.ppc_phyid, length));
+	for (i = length; i < (length + PHY_DWORD_LENGTH - 1); i++) {
+		payload.reserved[j] =  cpu_to_le32(*((u32 *)buf + i));
+		j++;
+	}
+	pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload, 0);
+}
+
+void pm8001_set_phy_profile(struct pm8001_hba_info *pm8001_ha,
+	u32 length, u8 *buf)
+{
+	u32 page_code, i;
+
+	page_code = SAS_PHY_ANALOG_SETTINGS_PAGE;
+	for (i = 0; i < pm8001_ha->chip->n_phy; i++) {
+		mpi_set_phy_profile_req(pm8001_ha,
+			SAS_PHY_ANALOG_SETTINGS_PAGE, i, length, (u32 *)buf);
+		length = length + PHY_DWORD_LENGTH;
+	}
+	PM8001_INIT_DBG(pm8001_ha, pm8001_printk("phy settings completed\n"));
+}
 const struct pm8001_dispatch pm8001_80xx_dispatch = {
 	.name			= "pmc80xx",
 	.chip_init		= pm80xx_chip_init,

drivers/scsi/pm8001/pm80xx_hwi.h

@@ -170,6 +170,10 @@
 #define LINKRATE_60			(0x06 << 8)
 #define LINKRATE_120			(0x08 << 8)
 
+/* phy_profile */
+#define SAS_PHY_ANALOG_SETTINGS_PAGE	0x04
+#define PHY_DWORD_LENGTH		0xC
+
 /* Thermal related */
 #define	THERMAL_ENABLE			0x1
 #define	THERMAL_LOG_ENABLE		0x1