[SCSI] qla2xxx: Add MSI-X support.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

1 files changed, 24 insertions, 0 deletions

diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index c4fc40f8e8ca..8d7e8cb1e703 100644
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -2046,6 +2046,27 @@ struct isp_operations {
                 uint32_t);
 };
 
+/* MSI-X Support *************************************************************/
+
+#define QLA_MSIX_CHIP_REV_24XX  3
+#define QLA_MSIX_FW_MODE(m)     (((m) & (BIT_7|BIT_8|BIT_9)) >> 7)
+#define QLA_MSIX_FW_MODE_1(m)   (QLA_MSIX_FW_MODE(m) == 1)
+
+#define QLA_MSIX_DEFAULT        0x00
+#define QLA_MSIX_RSP_Q          0x01
+
+#define QLA_MSIX_ENTRIES        2
+#define QLA_MIDX_DEFAULT        0
+#define QLA_MIDX_RSP_Q          1
+
+struct scsi_qla_host;
+
+struct qla_msix_entry {
+        int have_irq;
+        uint16_t msix_vector;
+        uint16_t msix_entry;
+};
+
 /*
  * Linux Host Adapter structure
  */
@@ -2356,6 +2377,7 @@ typedef struct scsi_qla_host {
 
         uint8_t         host_str[16];
         uint32_t        pci_attr;
+        uint16_t        chip_revision;
 
         uint16_t        product_id[4];
 
@@ -2389,6 +2411,8 @@ typedef struct scsi_qla_host {
         uint16_t        zio_mode;
         uint16_t        zio_timer;
         struct fc_host_statistics fc_host_stat;
+
+        struct qla_msix_entry msix_entries[QLA_MSIX_ENTRIES];
 } scsi_qla_host_t;