]> pilppa.org Git - linux-2.6-omap-h63xx.git/blobdiff - drivers/net/cxgb3/t3_hw.c
sky2: be more selective about FIFO watchdog
[linux-2.6-omap-h63xx.git] / drivers / net / cxgb3 / t3_hw.c
index d83f075ef2d788527a25c8ca4d7b325b154f174c..b02d15daf5d90f56fac24a6b531fbf40ac2aa8f0 100644 (file)
@@ -847,6 +847,98 @@ static int t3_write_flash(struct adapter *adapter, unsigned int addr,
        return 0;
 }
 
+/**
+ *     t3_get_tp_version - read the tp sram version
+ *     @adapter: the adapter
+ *     @vers: where to place the version
+ *
+ *     Reads the protocol sram version from sram.
+ */
+int t3_get_tp_version(struct adapter *adapter, u32 *vers)
+{
+       int ret;
+
+       /* Get version loaded in SRAM */
+       t3_write_reg(adapter, A_TP_EMBED_OP_FIELD0, 0);
+       ret = t3_wait_op_done(adapter, A_TP_EMBED_OP_FIELD0,
+                             1, 1, 5, 1);
+       if (ret)
+               return ret;
+       
+       *vers = t3_read_reg(adapter, A_TP_EMBED_OP_FIELD1);
+
+       return 0;
+}
+
+/**
+ *     t3_check_tpsram_version - read the tp sram version
+ *     @adapter: the adapter
+ *     @must_load: set to 1 if loading a new microcode image is required
+ *
+ *     Reads the protocol sram version from flash.
+ */
+int t3_check_tpsram_version(struct adapter *adapter, int *must_load)
+{
+       int ret;
+       u32 vers;
+       unsigned int major, minor;
+
+       if (adapter->params.rev == T3_REV_A)
+               return 0;
+
+       *must_load = 1;
+
+       ret = t3_get_tp_version(adapter, &vers);
+       if (ret)
+               return ret;
+
+       major = G_TP_VERSION_MAJOR(vers);
+       minor = G_TP_VERSION_MINOR(vers);
+
+       if (major == TP_VERSION_MAJOR && minor == TP_VERSION_MINOR) 
+               return 0;
+
+       if (major != TP_VERSION_MAJOR)
+               CH_ERR(adapter, "found wrong TP version (%u.%u), "
+                      "driver needs version %d.%d\n", major, minor,
+                      TP_VERSION_MAJOR, TP_VERSION_MINOR);
+       else {
+               *must_load = 0;
+               CH_ERR(adapter, "found wrong TP version (%u.%u), "
+                      "driver compiled for version %d.%d\n", major, minor,
+                      TP_VERSION_MAJOR, TP_VERSION_MINOR);
+       }
+       return -EINVAL;
+}
+
+/**
+ *     t3_check_tpsram - check if provided protocol SRAM 
+ *                       is compatible with this driver
+ *     @adapter: the adapter
+ *     @tp_sram: the firmware image to write
+ *     @size: image size
+ *
+ *     Checks if an adapter's tp sram is compatible with the driver.
+ *     Returns 0 if the versions are compatible, a negative error otherwise.
+ */
+int t3_check_tpsram(struct adapter *adapter, u8 *tp_sram, unsigned int size)
+{
+       u32 csum;
+       unsigned int i;
+       const u32 *p = (const u32 *)tp_sram;
+
+       /* Verify checksum */
+       for (csum = 0, i = 0; i < size / sizeof(csum); i++)
+               csum += ntohl(p[i]);
+       if (csum != 0xffffffff) {
+               CH_ERR(adapter, "corrupted protocol SRAM image, checksum %u\n",
+                      csum);
+               return -EINVAL;
+       }
+
+       return 0;
+}
+
 enum fw_version_type {
        FW_VERSION_N3,
        FW_VERSION_T3
@@ -921,7 +1013,7 @@ static int t3_flash_erase_sectors(struct adapter *adapter, int start, int end)
 /*
  *     t3_load_fw - download firmware
  *     @adapter: the adapter
- *     @fw_data: the firrware image to write
+ *     @fw_data: the firmware image to write
  *     @size: image size
  *
  *     Write the supplied firmware image to the card's serial flash.
@@ -1523,19 +1615,25 @@ static int mac_intr_handler(struct adapter *adap, unsigned int idx)
  */
 int t3_phy_intr_handler(struct adapter *adapter)
 {
-       static const int intr_gpio_bits[] = { 8, 0x20 };
-
+       u32 mask, gpi = adapter_info(adapter)->gpio_intr;
        u32 i, cause = t3_read_reg(adapter, A_T3DBG_INT_CAUSE);
 
        for_each_port(adapter, i) {
-               if (cause & intr_gpio_bits[i]) {
-                       struct cphy *phy = &adap2pinfo(adapter, i)->phy;
-                       int phy_cause = phy->ops->intr_handler(phy);
+               struct port_info *p = adap2pinfo(adapter, i);
+
+               mask = gpi - (gpi & (gpi - 1));
+               gpi -= mask;
+
+               if (!(p->port_type->caps & SUPPORTED_IRQ))
+                       continue;
+
+               if (cause & mask) {
+                       int phy_cause = p->phy.ops->intr_handler(&p->phy);
 
                        if (phy_cause & cphy_cause_link_change)
                                t3_link_changed(adapter, i);
                        if (phy_cause & cphy_cause_fifo_error)
-                               phy->fifo_errors++;
+                               p->phy.fifo_errors++;
                }
        }
 
@@ -2356,7 +2454,7 @@ static void tp_config(struct adapter *adap, const struct tp_params *p)
                     F_TCPCHECKSUMOFFLOAD | V_IPTTL(64));
        t3_write_reg(adap, A_TP_TCP_OPTIONS, V_MTUDEFAULT(576) |
                     F_MTUENABLE | V_WINDOWSCALEMODE(1) |
-                    V_TIMESTAMPSMODE(1) | V_SACKMODE(1) | V_SACKRX(1));
+                    V_TIMESTAMPSMODE(0) | V_SACKMODE(1) | V_SACKRX(1));
        t3_write_reg(adap, A_TP_DACK_CONFIG, V_AUTOSTATE3(1) |
                     V_AUTOSTATE2(1) | V_AUTOSTATE1(0) |
                     V_BYTETHRESHOLD(16384) | V_MSSTHRESHOLD(2) |
@@ -2365,16 +2463,18 @@ static void tp_config(struct adapter *adap, const struct tp_params *p)
                         F_IPV6ENABLE | F_NICMODE);
        t3_write_reg(adap, A_TP_TX_RESOURCE_LIMIT, 0x18141814);
        t3_write_reg(adap, A_TP_PARA_REG4, 0x5050105);
-       t3_set_reg_field(adap, A_TP_PARA_REG6,
-                        adap->params.rev > 0 ? F_ENABLEESND : F_T3A_ENABLEESND,
-                        0);
+       t3_set_reg_field(adap, A_TP_PARA_REG6, 0,
+                        adap->params.rev > 0 ? F_ENABLEESND :
+                        F_T3A_ENABLEESND);
 
        t3_set_reg_field(adap, A_TP_PC_CONFIG,
-                        F_ENABLEEPCMDAFULL | F_ENABLEOCSPIFULL,
-                        F_TXDEFERENABLE | F_HEARBEATDACK | F_TXCONGESTIONMODE |
-                        F_RXCONGESTIONMODE);
+                        F_ENABLEEPCMDAFULL,
+                        F_ENABLEOCSPIFULL |F_TXDEFERENABLE | F_HEARBEATDACK |
+                        F_TXCONGESTIONMODE | F_RXCONGESTIONMODE);
        t3_set_reg_field(adap, A_TP_PC_CONFIG2, F_CHDRAFULL, 0);
-
+       t3_write_reg(adap, A_TP_PROXY_FLOW_CNTL, 1080);
+       t3_write_reg(adap, A_TP_PROXY_FLOW_CNTL, 1000);
+       
        if (adap->params.rev > 0) {
                tp_wr_indirect(adap, A_TP_EGRESS_CONFIG, F_REWRITEFORCETOSIZE);
                t3_set_reg_field(adap, A_TP_PARA_REG3, F_TXPACEAUTO,
@@ -2384,9 +2484,10 @@ static void tp_config(struct adapter *adap, const struct tp_params *p)
        } else
                t3_set_reg_field(adap, A_TP_PARA_REG3, 0, F_TXPACEFIXED);
 
-       t3_write_reg(adap, A_TP_TX_MOD_QUEUE_WEIGHT1, 0x12121212);
-       t3_write_reg(adap, A_TP_TX_MOD_QUEUE_WEIGHT0, 0x12121212);
-       t3_write_reg(adap, A_TP_MOD_CHANNEL_WEIGHT, 0x1212);
+       t3_write_reg(adap, A_TP_TX_MOD_QUEUE_WEIGHT1, 0);
+       t3_write_reg(adap, A_TP_TX_MOD_QUEUE_WEIGHT0, 0);
+       t3_write_reg(adap, A_TP_MOD_CHANNEL_WEIGHT, 0);
+       t3_write_reg(adap, A_TP_MOD_RATE_LIMIT, 0xf2200000);
 }
 
 /* Desired TP timer resolution in usec */
@@ -2462,6 +2563,7 @@ int t3_tp_set_coalescing_size(struct adapter *adap, unsigned int size, int psh)
                val |= F_RXCOALESCEENABLE;
                if (psh)
                        val |= F_RXCOALESCEPSHEN;
+               size = min(MAX_RX_COALESCING_LEN, size);
                t3_write_reg(adap, A_TP_PARA_REG2, V_RXCOALESCESIZE(size) |
                             V_MAXRXDATA(MAX_RX_COALESCING_LEN));
        }
@@ -2490,11 +2592,11 @@ static void __devinit init_mtus(unsigned short mtus[])
         * it can accomodate max size TCP/IP headers when SACK and timestamps
         * are enabled and still have at least 8 bytes of payload.
         */
-       mtus[0] = 88;
-       mtus[1] = 256;
-       mtus[2] = 512;
-       mtus[3] = 576;
-       mtus[4] = 808;
+       mtus[1] = 88;
+       mtus[1] = 88;
+       mtus[2] = 256;
+       mtus[3] = 512;
+       mtus[4] = 576;
        mtus[5] = 1024;
        mtus[6] = 1280;
        mtus[7] = 1492;
@@ -2676,6 +2778,34 @@ static void ulp_config(struct adapter *adap, const struct tp_params *p)
        t3_write_reg(adap, A_ULPRX_TDDP_TAGMASK, 0xffffffff);
 }
 
+/**
+ *     t3_set_proto_sram - set the contents of the protocol sram
+ *     @adapter: the adapter
+ *     @data: the protocol image
+ *
+ *     Write the contents of the protocol SRAM.
+ */
+int t3_set_proto_sram(struct adapter *adap, u8 *data)
+{
+       int i;
+       u32 *buf = (u32 *)data;
+
+       for (i = 0; i < PROTO_SRAM_LINES; i++) {
+               t3_write_reg(adap, A_TP_EMBED_OP_FIELD5, cpu_to_be32(*buf++));
+               t3_write_reg(adap, A_TP_EMBED_OP_FIELD4, cpu_to_be32(*buf++));
+               t3_write_reg(adap, A_TP_EMBED_OP_FIELD3, cpu_to_be32(*buf++));
+               t3_write_reg(adap, A_TP_EMBED_OP_FIELD2, cpu_to_be32(*buf++));
+               t3_write_reg(adap, A_TP_EMBED_OP_FIELD1, cpu_to_be32(*buf++));
+               
+               t3_write_reg(adap, A_TP_EMBED_OP_FIELD0, i << 1 | 1 << 31);
+               if (t3_wait_op_done(adap, A_TP_EMBED_OP_FIELD0, 1, 1, 5, 1))
+                       return -EIO;
+       }
+       t3_write_reg(adap, A_TP_EMBED_OP_FIELD0, 0);
+
+       return 0;
+}
+
 void t3_config_trace_filter(struct adapter *adapter,
                            const struct trace_params *tp, int filter_index,
                            int invert, int enable)
@@ -2796,7 +2926,7 @@ static void init_hw_for_avail_ports(struct adapter *adap, int nports)
                t3_set_reg_field(adap, A_ULPTX_CONFIG, F_CFG_RR_ARB, 0);
                t3_write_reg(adap, A_MPS_CFG, F_TPRXPORTEN | F_TPTXPORT0EN |
                             F_PORT0ACTIVE | F_ENFORCEPKT);
-               t3_write_reg(adap, A_PM1_TX_CFG, 0xc000c000);
+               t3_write_reg(adap, A_PM1_TX_CFG, 0xffffffff);
        } else {
                t3_set_reg_field(adap, A_ULPRX_CTL, 0, F_ROUND_ROBIN);
                t3_set_reg_field(adap, A_ULPTX_CONFIG, 0, F_CFG_RR_ARB);
@@ -3091,7 +3221,7 @@ int t3_init_hw(struct adapter *adapter, u32 fw_params)
        else
                t3_set_reg_field(adapter, A_PCIX_CFG, 0, F_CLIDECEN);
 
-       t3_write_reg(adapter, A_PM1_RX_CFG, 0xf000f000);
+       t3_write_reg(adapter, A_PM1_RX_CFG, 0xffffffff);
        init_hw_for_avail_ports(adapter, adapter->params.nports);
        t3_sge_init(adapter, &adapter->params.sge);