[SCSI] libfc: re-login to remote ports that send us LOGO

[safe/jmp/linux-2.6] / drivers / scsi / esp_scsi.c

diff --git a/drivers/scsi/esp_scsi.c b/drivers/scsi/esp_scsi.c
index a0b6d41..a680e18 100644 (file)
--- a/drivers/scsi/esp_scsi.c
+++ b/drivers/scsi/esp_scsi.c
@@ -219,19 +219,10 @@ static void esp_reset_esp(struct esp *esp)
        /* Now reset the ESP chip */
        scsi_esp_cmd(esp, ESP_CMD_RC);
        scsi_esp_cmd(esp, ESP_CMD_NULL | ESP_CMD_DMA);
+       if (esp->rev == FAST)
+               esp_write8(ESP_CONFIG2_FENAB, ESP_CFG2);
        scsi_esp_cmd(esp, ESP_CMD_NULL | ESP_CMD_DMA);
 
-       /* Reload the configuration registers */
-       esp_write8(esp->cfact, ESP_CFACT);
-
-       esp->prev_stp = 0;
-       esp_write8(esp->prev_stp, ESP_STP);
-
-       esp->prev_soff = 0;
-       esp_write8(esp->prev_soff, ESP_SOFF);
-
-       esp_write8(esp->neg_defp, ESP_TIMEO);
-
        /* This is the only point at which it is reliable to read
         * the ID-code for a fast ESP chip variants.
         */
@@ -316,6 +307,17 @@ static void esp_reset_esp(struct esp *esp)
                break;
        }
 
+       /* Reload the configuration registers */
+       esp_write8(esp->cfact, ESP_CFACT);
+
+       esp->prev_stp = 0;
+       esp_write8(esp->prev_stp, ESP_STP);
+
+       esp->prev_soff = 0;
+       esp_write8(esp->prev_soff, ESP_SOFF);
+
+       esp_write8(esp->neg_defp, ESP_TIMEO);
+
        /* Eat any bitrot in the chip */
        esp_read8(ESP_INTRPT);
        udelay(100);
@@ -1451,7 +1453,7 @@ static void esp_msgin_sdtr(struct esp *esp, struct esp_target_data *tp)
                offset = 0;
 
        if (offset) {
-               int rounded_up, one_clock;
+               int one_clock;
 
                if (period > esp->max_period) {
                        period = offset = 0;
@@ -1461,9 +1463,7 @@ static void esp_msgin_sdtr(struct esp *esp, struct esp_target_data *tp)
                        goto do_reject;
 
                one_clock = esp->ccycle / 1000;
-               rounded_up = (period << 2);
-               rounded_up = (rounded_up + one_clock - 1) / one_clock;
-               stp = rounded_up;
+               stp = DIV_ROUND_UP(period << 2, one_clock);
                if (stp && esp->rev >= FAS236) {
                        if (stp >= 50)
                                stp--;
@@ -2359,6 +2359,24 @@ void scsi_esp_unregister(struct esp *esp)
 }
 EXPORT_SYMBOL(scsi_esp_unregister);
 
+static int esp_target_alloc(struct scsi_target *starget)
+{
+       struct esp *esp = shost_priv(dev_to_shost(&starget->dev));
+       struct esp_target_data *tp = &esp->target[starget->id];
+
+       tp->starget = starget;
+
+       return 0;
+}
+
+static void esp_target_destroy(struct scsi_target *starget)
+{
+       struct esp *esp = shost_priv(dev_to_shost(&starget->dev));
+       struct esp_target_data *tp = &esp->target[starget->id];
+
+       tp->starget = NULL;
+}
+
 static int esp_slave_alloc(struct scsi_device *dev)
 {
        struct esp *esp = shost_priv(dev->host);
@@ -2370,8 +2388,6 @@ static int esp_slave_alloc(struct scsi_device *dev)
                return -ENOMEM;
        dev->hostdata = lp;
 
-       tp->starget = dev->sdev_target;
-
        spi_min_period(tp->starget) = esp->min_period;
        spi_max_offset(tp->starget) = 15;
 
@@ -2608,6 +2624,8 @@ struct scsi_host_template scsi_esp_template = {
        .name                   = "esp",
        .info                   = esp_info,
        .queuecommand           = esp_queuecommand,
+       .target_alloc           = esp_target_alloc,
+       .target_destroy         = esp_target_destroy,
        .slave_alloc            = esp_slave_alloc,
        .slave_configure        = esp_slave_configure,
        .slave_destroy          = esp_slave_destroy,