[SCSI] pm8001: add reinitialize SPC parameters before phy start

Signed-off-by: Jack Wang <jack_wang@usish.com>
Signed-off-by: Lindar Liu <lindar_liu@usish.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

4 files changed, 85 insertions, 12 deletions

diff --git a/drivers/scsi/pm8001/pm8001_hwi.c b/drivers/scsi/pm8001/pm8001_hwi.c
index aa5756fe0574..d18c2635995f 100644
--- a/drivers/scsi/pm8001/pm8001_hwi.c
+++ b/drivers/scsi/pm8001/pm8001_hwi.c
@@ -57,9 +57,9 @@ static void __devinit read_main_config_table(struct pm8001_hba_info *pm8001_ha)
         pm8001_ha->main_cfg_tbl.ctrl_cap_flag   = pm8001_mr32(address, 0x14);
         pm8001_ha->main_cfg_tbl.gst_offset      = pm8001_mr32(address, 0x18);
         pm8001_ha->main_cfg_tbl.inbound_queue_offset =
-                pm8001_mr32(address, 0x1C);
+                pm8001_mr32(address, MAIN_IBQ_OFFSET);
         pm8001_ha->main_cfg_tbl.outbound_queue_offset =
-                pm8001_mr32(address, 0x20);
+                pm8001_mr32(address, MAIN_OBQ_OFFSET);
         pm8001_ha->main_cfg_tbl.hda_mode_flag   =
                 pm8001_mr32(address, MAIN_HDA_FLAGS_OFFSET);
 
@@ -124,7 +124,7 @@ read_inbnd_queue_table(struct pm8001_hba_info *pm8001_ha)
         int i;
         void __iomem *address = pm8001_ha->inbnd_q_tbl_addr;
         for (i = 0; i < inbQ_num; i++) {
-                u32 offset = i * 0x24;
+                u32 offset = i * 0x20;
                 pm8001_ha->inbnd_q_tbl[i].pi_pci_bar =
                       get_pci_bar_index(pm8001_mr32(address, (offset + 0x14)));
                 pm8001_ha->inbnd_q_tbl[i].pi_offset =
@@ -231,7 +231,7 @@ init_default_table_values(struct pm8001_hba_info *pm8001_ha)
                 pm8001_ha->outbnd_q_tbl[i].pi_lower_base_addr   =
                         pm8001_ha->memoryMap.region[PI].phys_addr_lo;
                 pm8001_ha->outbnd_q_tbl[i].interrup_vec_cnt_delay       =
-                        0 | (0 << 16) | (0 << 24);
+                        0 | (10 << 16) | (0 << 24);
                 pm8001_ha->outbnd_q_tbl[i].pi_virt              =
                         pm8001_ha->memoryMap.region[PI].virt_ptr;
                 offsetob = i * 0x24;
@@ -375,13 +375,16 @@ mpi_set_phys_g3_with_ssc(struct pm8001_hba_info *pm8001_ha, u32 SSCbit)
 {
         u32 offset;
         u32 value;
-        u32 i;
+        u32 i, j;
+        u32 bit_cnt;
 
 #define SAS2_SETTINGS_LOCAL_PHY_0_3_SHIFT_ADDR 0x00030000
 #define SAS2_SETTINGS_LOCAL_PHY_4_7_SHIFT_ADDR 0x00040000
 #define SAS2_SETTINGS_LOCAL_PHY_0_3_OFFSET 0x1074
 #define SAS2_SETTINGS_LOCAL_PHY_4_7_OFFSET 0x1074
-#define PHY_SSC_BIT_SHIFT 13
+#define PHY_G3_WITHOUT_SSC_BIT_SHIFT 12
+#define PHY_G3_WITH_SSC_BIT_SHIFT 13
+#define SNW3_PHY_CAPABILITIES_PARITY 31
 
    /*
     * Using shifted destination address 0x3_0000:0x1074 + 0x4000*N (N=0:3)
@@ -393,10 +396,22 @@ mpi_set_phys_g3_with_ssc(struct pm8001_hba_info *pm8001_ha, u32 SSCbit)
         for (i = 0; i < 4; i++) {
                 offset = SAS2_SETTINGS_LOCAL_PHY_0_3_OFFSET + 0x4000 * i;
                 value = pm8001_cr32(pm8001_ha, 2, offset);
-                if (SSCbit)
-                        value = value | (0x00000001 << PHY_SSC_BIT_SHIFT);
+                if (SSCbit) {
+                        value |= 0x00000001 << PHY_G3_WITH_SSC_BIT_SHIFT;
+                        value &= ~(0x00000001 << PHY_G3_WITHOUT_SSC_BIT_SHIFT);
+                } else {
+                        value |= 0x00000001 << PHY_G3_WITHOUT_SSC_BIT_SHIFT;
+                        value &= ~(0x00000001 << PHY_G3_WITH_SSC_BIT_SHIFT);
+                }
+                bit_cnt = 0;
+                for (j = 0; j < 31; j++)
+                        if ((value >> j) & 0x00000001)
+                                bit_cnt++;
+                if (bit_cnt % 2)
+                        value &= ~(0x00000001 << SNW3_PHY_CAPABILITIES_PARITY);
                 else
-                        value = value & (~(0x00000001<<PHY_SSC_BIT_SHIFT));
+                        value |= 0x00000001 << SNW3_PHY_CAPABILITIES_PARITY;
+
                 pm8001_cw32(pm8001_ha, 2, offset, value);
         }
 
@@ -408,10 +423,22 @@ mpi_set_phys_g3_with_ssc(struct pm8001_hba_info *pm8001_ha, u32 SSCbit)
         for (i = 4; i < 8; i++) {
                 offset = SAS2_SETTINGS_LOCAL_PHY_4_7_OFFSET + 0x4000 * (i-4);
                 value = pm8001_cr32(pm8001_ha, 2, offset);
-                if (SSCbit)
-                        value = value | (0x00000001 << PHY_SSC_BIT_SHIFT);
+                if (SSCbit) {
+                        value |= 0x00000001 << PHY_G3_WITH_SSC_BIT_SHIFT;
+                        value &= ~(0x00000001 << PHY_G3_WITHOUT_SSC_BIT_SHIFT);
+                } else {
+                        value |= 0x00000001 << PHY_G3_WITHOUT_SSC_BIT_SHIFT;
+                        value &= ~(0x00000001 << PHY_G3_WITH_SSC_BIT_SHIFT);
+                }
+                bit_cnt = 0;
+                for (j = 0; j < 31; j++)
+                        if ((value >> j) & 0x00000001)
+                                bit_cnt++;
+                if (bit_cnt % 2)
+                        value &= ~(0x00000001 << SNW3_PHY_CAPABILITIES_PARITY);
                 else
-                        value = value & (~(0x00000001<<PHY_SSC_BIT_SHIFT));
+                        value |= 0x00000001 << SNW3_PHY_CAPABILITIES_PARITY;
+
                 pm8001_cw32(pm8001_ha, 2, offset, value);
         }
 
@@ -4338,6 +4365,30 @@ pm8001_chip_set_dev_state_req(struct pm8001_hba_info *pm8001_ha,
         payload.nds = cpu_to_le32(state);
         mpi_build_cmd(pm8001_ha, circularQ, opc, &payload);
         return 0;
+}
+
+static int
+pm8001_chip_sas_re_initialization(struct pm8001_hba_info *pm8001_ha)
+{
+        struct sas_re_initialization_req payload;
+        struct inbound_queue_table *circularQ;
+        struct pm8001_ccb_info *ccb;
+        int rc;
+        u32 tag;
+        u32 opc = OPC_INB_SAS_RE_INITIALIZE;
+        memset(&payload, 0, sizeof(payload));
+        rc = pm8001_tag_alloc(pm8001_ha, &tag);
+        if (rc)
+                return -1;
+        ccb = &pm8001_ha->ccb_info[tag];
+        ccb->ccb_tag = tag;
+        circularQ = &pm8001_ha->inbnd_q_tbl[0];
+        payload.tag = cpu_to_le32(tag);
+        payload.SSAHOLT = cpu_to_le32(0xd << 25);
+        payload.sata_hol_tmo = cpu_to_le32(80);
+        payload.open_reject_cmdretries_data_retries = cpu_to_le32(0xff00ff);
+        rc = mpi_build_cmd(pm8001_ha, circularQ, opc, &payload);
+        return rc;
 
 }
 
@@ -4367,5 +4418,6 @@ const struct pm8001_dispatch pm8001_8001_dispatch = {
         .set_nvmd_req           = pm8001_chip_set_nvmd_req,
         .fw_flash_update_req    = pm8001_chip_fw_flash_update_req,
         .set_dev_state_req      = pm8001_chip_set_dev_state_req,
+        .sas_re_init_req        = pm8001_chip_sas_re_initialization,
 };
 
diff --git a/drivers/scsi/pm8001/pm8001_hwi.h b/drivers/scsi/pm8001/pm8001_hwi.h
index 3690a2ba0eb2..96e4daa68b8f 100644
--- a/drivers/scsi/pm8001/pm8001_hwi.h
+++ b/drivers/scsi/pm8001/pm8001_hwi.h
@@ -490,6 +490,25 @@ struct set_dev_state_req {
         u32     reserved[12];
 } __attribute__((packed, aligned(4)));
 
+/*
+ * brief the data structure of sas_re_initialization
+ */
+struct sas_re_initialization_req {
+
+        __le32  tag;
+        __le32  SSAHOLT;/* bit29-set max port;
+                        ** bit28-set open reject cmd retries.
+                        ** bit27-set open reject data retries.
+                        ** bit26-set open reject option, remap:1 or not:0.
+                        ** bit25-set sata head of line time out.
+                        */
+        __le32 reserved_maxPorts;
+        __le32 open_reject_cmdretries_data_retries;/* cmd retries: 31-bit16;
+                                                    * data retries: bit15-bit0.
+                                                    */
+        __le32  sata_hol_tmo;
+        u32     reserved1[10];
+} __attribute__((packed, aligned(4)));
 
 /*
  * brief the data structure of SATA Start Command
diff --git a/drivers/scsi/pm8001/pm8001_sas.c b/drivers/scsi/pm8001/pm8001_sas.c
index 7bf30fa6963a..1e840fd15160 100644
--- a/drivers/scsi/pm8001/pm8001_sas.c
+++ b/drivers/scsi/pm8001/pm8001_sas.c
@@ -240,6 +240,7 @@ void pm8001_scan_start(struct Scsi_Host *shost)
         struct pm8001_hba_info *pm8001_ha;
         struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
         pm8001_ha = sha->lldd_ha;
+        PM8001_CHIP_DISP->sas_re_init_req(pm8001_ha);
         for (i = 0; i < pm8001_ha->chip->n_phy; ++i)
                 PM8001_CHIP_DISP->phy_start_req(pm8001_ha, i);
 }
diff --git a/drivers/scsi/pm8001/pm8001_sas.h b/drivers/scsi/pm8001/pm8001_sas.h
index 14c676bbb533..ed6dbd193aa1 100644
--- a/drivers/scsi/pm8001/pm8001_sas.h
+++ b/drivers/scsi/pm8001/pm8001_sas.h
@@ -153,6 +153,7 @@ struct pm8001_dispatch {
                 u32 state);
         int (*sas_diag_execute_req)(struct pm8001_hba_info *pm8001_ha,
                 u32 state);
+        int (*sas_re_init_req)(struct pm8001_hba_info *pm8001_ha);
 };
 
 struct pm8001_chip_info {