[SCSI] lpfc: NPIV: add SLI-3 interface

NPIV support is only available via new adapter interface extensions,
termed SLI-3. This interface changes some of the basic behaviors such
as command and response ring element sizes and data structures, as
well as a change in buffer posting.  Note: the new firmware extensions
are found only on our mid-range and enterprise 4Gig adapters - so NPIV
support is available only on these newer adapters. The latest firmware
can be downloaded from the Emulex support page.

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

1 files changed, 33 insertions, 2 deletions

diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h
index 8d718964f281..74f4d18842cc 100644
--- a/drivers/scsi/lpfc/lpfc.h
+++ b/drivers/scsi/lpfc/lpfc.h
@@ -63,6 +63,11 @@ struct lpfc_dma_pool {
         uint32_t    current_count;
 };
 
+struct hbq_dmabuf {
+        struct lpfc_dmabuf dbuf;
+        uint32_t tag;
+};
+
 /* Priority bit.  Set value to exceed low water mark in lpfc_mem. */
 #define MEM_PRI         0x100
 
@@ -276,8 +281,25 @@ struct lpfc_vport {
 
 };
 
+
+struct hbq_s {
+        uint16_t entry_count;     /* Current number of HBQ slots */
+        uint32_t next_hbqPutIdx;  /* Index to next HBQ slot to use */
+        uint32_t hbqPutIdx;       /* HBQ slot to use */
+        uint32_t local_hbqGetIdx; /* Local copy of Get index from Port */
+};
+
+#define MAX_HBQS  16
+
 struct lpfc_hba {
         struct lpfc_sli sli;
+        uint32_t sli_rev;               /* SLI2 or SLI3 */
+        uint32_t sli3_options;          /* Mask of enabled SLI3 options */
+#define LPFC_SLI3_ENABLED       0x01
+#define LPFC_SLI3_HBQ_ENABLED   0x02
+#define LPFC_SLI3_INB_ENABLED   0x04
+        uint32_t iocb_cmd_size;
+        uint32_t iocb_rsp_size;
 
         enum hba_state link_state;
         uint32_t link_flag;     /* link state flags */
@@ -286,8 +308,6 @@ struct lpfc_hba {
                                         /* INIT_LINK mailbox command */
 #define LS_IGNORE_ERATT         0x80000 /* intr handler should ignore ERATT */
 
-        uint32_t pgpOffset; /* PGP offset within host memory */
-
         struct lpfc_sli2_slim *slim2p;
         struct lpfc_dmabuf hbqslimp;
 
@@ -371,6 +391,12 @@ struct lpfc_hba {
         wait_queue_head_t    *work_wait;
         struct task_struct   *worker_thread;
 
+        struct   hbq_dmabuf *hbq_buffer_pool;
+        uint32_t hbq_buffer_count;
+        uint32_t hbq_buff_count;        /* Current hbq buffers */
+        uint32_t hbq_count;             /* Count of configured HBQs */
+        struct hbq_s hbqs[MAX_HBQS];    /* local copy of hbq indicies  */
+
         unsigned long pci_bar0_map;     /* Physical address for PCI BAR0 */
         unsigned long pci_bar2_map;     /* Physical address for PCI BAR2 */
         void __iomem *slim_memmap_p;    /* Kernel memory mapped address for
@@ -385,6 +411,10 @@ struct lpfc_hba {
                                            reg */
         void __iomem *HCregaddr;        /* virtual address for host ctl reg */
 
+        struct lpfc_hgp __iomem *host_gp; /* Host side get/put pointers */
+        uint32_t __iomem  *hbq_put;     /* Address in SLIM to HBQ put ptrs */
+        uint32_t __iomem  *hbq_get;     /* Address in SLIM to HBQ get ptrs */
+
         int brd_no;                     /* FC board number */
 
         char SerialNumber[32];          /* adapter Serial Number */
@@ -425,6 +455,7 @@ struct lpfc_hba {
         /* pci_mem_pools */
         struct pci_pool *lpfc_scsi_dma_buf_pool;
         struct pci_pool *lpfc_mbuf_pool;
+        struct pci_pool *lpfc_hbq_pool;
         struct lpfc_dma_pool lpfc_mbuf_safety_pool;
 
         mempool_t *mbox_mem_pool;