Merge ../scsi-rc-fixes-2.6

[linux-2.6-block.git] / drivers / scsi / aic94xx / aic94xx_scb.c

diff --git a/drivers/scsi/aic94xx/aic94xx_scb.c b/drivers/scsi/aic94xx/aic94xx_scb.c
index 52c6ea4fbf714d350250dcaafed00a53e701cbc4..14d5d8c2ee1334f1a62b4c2016960209d20892c4 100644 (file)
--- a/drivers/scsi/aic94xx/aic94xx_scb.c
+++ b/drivers/scsi/aic94xx/aic94xx_scb.c
@@ -169,6 +169,70 @@ static inline void asd_get_attached_sas_addr(struct asd_phy *phy, u8 *sas_addr)
        }
 }
 
+static void asd_form_port(struct asd_ha_struct *asd_ha, struct asd_phy *phy)
+{
+       int i;
+       struct asd_port *free_port = NULL;
+       struct asd_port *port;
+       struct asd_sas_phy *sas_phy = &phy->sas_phy;
+       unsigned long flags;
+
+       spin_lock_irqsave(&asd_ha->asd_ports_lock, flags);
+       if (!phy->asd_port) {
+               for (i = 0; i < ASD_MAX_PHYS; i++) {
+                       port = &asd_ha->asd_ports[i];
+
+                       /* Check for wide port */
+                       if (port->num_phys > 0 &&
+                           memcmp(port->sas_addr, sas_phy->sas_addr,
+                                  SAS_ADDR_SIZE) == 0 &&
+                           memcmp(port->attached_sas_addr,
+                                  sas_phy->attached_sas_addr,
+                                  SAS_ADDR_SIZE) == 0) {
+                               break;
+                       }
+
+                       /* Find a free port */
+                       if (port->num_phys == 0 && free_port == NULL) {
+                               free_port = port;
+                       }
+               }
+
+               /* Use a free port if this doesn't form a wide port */
+               if (i >= ASD_MAX_PHYS) {
+                       port = free_port;
+                       BUG_ON(!port);
+                       memcpy(port->sas_addr, sas_phy->sas_addr,
+                              SAS_ADDR_SIZE);
+                       memcpy(port->attached_sas_addr,
+                              sas_phy->attached_sas_addr,
+                              SAS_ADDR_SIZE);
+               }
+               port->num_phys++;
+               port->phy_mask |= (1U << sas_phy->id);
+               phy->asd_port = port;
+       }
+       ASD_DPRINTK("%s: updating phy_mask 0x%x for phy%d\n",
+                   __FUNCTION__, phy->asd_port->phy_mask, sas_phy->id);
+       asd_update_port_links(asd_ha, phy);
+       spin_unlock_irqrestore(&asd_ha->asd_ports_lock, flags);
+}
+
+static void asd_deform_port(struct asd_ha_struct *asd_ha, struct asd_phy *phy)
+{
+       struct asd_port *port = phy->asd_port;
+       struct asd_sas_phy *sas_phy = &phy->sas_phy;
+       unsigned long flags;
+
+       spin_lock_irqsave(&asd_ha->asd_ports_lock, flags);
+       if (port) {
+               port->num_phys--;
+               port->phy_mask &= ~(1U << sas_phy->id);
+               phy->asd_port = NULL;
+       }
+       spin_unlock_irqrestore(&asd_ha->asd_ports_lock, flags);
+}
+
 static inline void asd_bytes_dmaed_tasklet(struct asd_ascb *ascb,
                                           struct done_list_struct *dl,
                                           int edb_id, int phy_id)
@@ -188,6 +252,7 @@ static inline void asd_bytes_dmaed_tasklet(struct asd_ascb *ascb,
        asd_get_attached_sas_addr(phy, phy->sas_phy.attached_sas_addr);
        spin_unlock_irqrestore(&phy->sas_phy.frame_rcvd_lock, flags);
        asd_dump_frame_rcvd(phy, dl);
+       asd_form_port(ascb->ha, phy);
        sas_ha->notify_port_event(&phy->sas_phy, PORTE_BYTES_DMAED);
 }
 
@@ -198,6 +263,7 @@ static inline void asd_link_reset_err_tasklet(struct asd_ascb *ascb,
        struct asd_ha_struct *asd_ha = ascb->ha;
        struct sas_ha_struct *sas_ha = &asd_ha->sas_ha;
        struct asd_sas_phy *sas_phy = sas_ha->sas_phy[phy_id];
+       struct asd_phy *phy = &asd_ha->phys[phy_id];
        u8 lr_error = dl->status_block[1];
        u8 retries_left = dl->status_block[2];
 
@@ -222,6 +288,7 @@ static inline void asd_link_reset_err_tasklet(struct asd_ascb *ascb,
 
        asd_turn_led(asd_ha, phy_id, 0);
        sas_phy_disconnected(sas_phy);
+       asd_deform_port(asd_ha, phy);
        sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR);
 
        if (retries_left == 0) {
@@ -249,6 +316,8 @@ static inline void asd_primitive_rcvd_tasklet(struct asd_ascb *ascb,
        unsigned long flags;
        struct sas_ha_struct *sas_ha = &ascb->ha->sas_ha;
        struct asd_sas_phy *sas_phy = sas_ha->sas_phy[phy_id];
+       struct asd_ha_struct *asd_ha = ascb->ha;
+       struct asd_phy *phy = &asd_ha->phys[phy_id];
        u8  reg  = dl->status_block[1];
        u32 cont = dl->status_block[2] << ((reg & 3)*8);
 
@@ -285,6 +354,7 @@ static inline void asd_primitive_rcvd_tasklet(struct asd_ascb *ascb,
                                    phy_id);
                        /* The sequencer disables all phys on that port.
                         * We have to re-enable the phys ourselves. */
+                       asd_deform_port(asd_ha, phy);
                        sas_ha->notify_port_event(sas_phy, PORTE_HARD_RESET);
                        break;
 
@@ -385,6 +455,7 @@ static void escb_tasklet_complete(struct asd_ascb *ascb,
        u8  sb_opcode = dl->status_block[0];
        int phy_id = sb_opcode & DL_PHY_MASK;
        struct asd_sas_phy *sas_phy = sas_ha->sas_phy[phy_id];
+       struct asd_phy *phy = &asd_ha->phys[phy_id];
 
        if (edb > 6 || edb < 0) {
                ASD_DPRINTK("edb is 0x%x! dl->opcode is 0x%x\n",
@@ -497,6 +568,7 @@ static void escb_tasklet_complete(struct asd_ascb *ascb,
                asd_turn_led(asd_ha, phy_id, 0);
                /* the device is gone */
                sas_phy_disconnected(sas_phy);
+               asd_deform_port(asd_ha, phy);
                sas_ha->notify_port_event(sas_phy, PORTE_TIMER_EVENT);
                break;
        default: