1 files changed, 115 insertions, 0 deletions

diff --git a/drivers/scsi/bfa/bfa_intr_priv.h b/drivers/scsi/bfa/bfa_intr_priv.h
new file mode 100644
index 000000000000..8ce6e6b105c8
--- /dev/null
+++ b/drivers/scsi/bfa/bfa_intr_priv.h
@@ -0,0 +1,115 @@
+/*
+ * Copyright (c) 2005-2009 Brocade Communications Systems, Inc.
+ * All rights reserved
+ * www.brocade.com
+ *
+ * Linux driver for Brocade Fibre Channel Host Bus Adapter.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License (GPL) Version 2 as
+ * published by the Free Software Foundation
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+#ifndef __BFA_INTR_PRIV_H__
+#define __BFA_INTR_PRIV_H__
+
+/**
+ * Message handler
+ */
+typedef void (*bfa_isr_func_t) (struct bfa_s *bfa, struct bfi_msg_s *m);
+void bfa_isr_unhandled(struct bfa_s *bfa, struct bfi_msg_s *m);
+void bfa_isr_bind(enum bfi_mclass mc, bfa_isr_func_t isr_func);
+
+
+#define bfa_reqq_pi(__bfa, __reqq)      (__bfa)->iocfc.req_cq_pi[__reqq]
+#define bfa_reqq_ci(__bfa, __reqq)                                      \
+        *(u32 *)((__bfa)->iocfc.req_cq_shadow_ci[__reqq].kva)
+
+#define bfa_reqq_full(__bfa, __reqq)                            \
+        (((bfa_reqq_pi(__bfa, __reqq) + 1) &                    \
+          ((__bfa)->iocfc.cfg.drvcfg.num_reqq_elems - 1)) ==    \
+         bfa_reqq_ci(__bfa, __reqq))
+
+#define bfa_reqq_next(__bfa, __reqq)                            \
+        (bfa_reqq_full(__bfa, __reqq) ? NULL :                  \
+         ((void *)((struct bfi_msg_s *)((__bfa)->iocfc.req_cq_ba[__reqq].kva) \
+                          + bfa_reqq_pi((__bfa), (__reqq)))))
+
+#define bfa_reqq_produce(__bfa, __reqq) do {                            \
+        (__bfa)->iocfc.req_cq_pi[__reqq]++;                             \
+        (__bfa)->iocfc.req_cq_pi[__reqq] &=                             \
+                ((__bfa)->iocfc.cfg.drvcfg.num_reqq_elems - 1);      \
+        bfa_reg_write((__bfa)->iocfc.bfa_regs.cpe_q_pi[__reqq],         \
+                                (__bfa)->iocfc.req_cq_pi[__reqq]);      \
+        bfa_os_mmiowb();      \
+} while (0)
+
+#define bfa_rspq_pi(__bfa, __rspq)                                      \
+        *(u32 *)((__bfa)->iocfc.rsp_cq_shadow_pi[__rspq].kva)
+
+#define bfa_rspq_ci(__bfa, __rspq)      (__bfa)->iocfc.rsp_cq_ci[__rspq]
+#define bfa_rspq_elem(__bfa, __rspq, __ci)                              \
+        &((struct bfi_msg_s *)((__bfa)->iocfc.rsp_cq_ba[__rspq].kva))[__ci]
+
+#define CQ_INCR(__index, __size)                                        \
+                        (__index)++; (__index) &= ((__size) - 1)
+
+/**
+ * Queue element to wait for room in request queue. FIFO order is
+ * maintained when fullfilling requests.
+ */
+struct bfa_reqq_wait_s {
+        struct list_head        qe;
+        void            (*qresume) (void *cbarg);
+        void            *cbarg;
+};
+
+/**
+ * Circular queue usage assignments
+ */
+enum {
+        BFA_REQQ_IOC    = 0,    /*  all low-priority IOC msgs   */
+        BFA_REQQ_FCXP   = 0,    /*  all FCXP messages           */
+        BFA_REQQ_LPS    = 0,    /*  all lport service msgs      */
+        BFA_REQQ_PORT   = 0,    /*  all port messages           */
+        BFA_REQQ_FLASH  = 0,    /*  for flash module            */
+        BFA_REQQ_DIAG   = 0,    /*  for diag module             */
+        BFA_REQQ_RPORT  = 0,    /*  all port messages           */
+        BFA_REQQ_SBOOT  = 0,    /*  all san boot messages       */
+        BFA_REQQ_QOS_LO = 1,    /*  all low priority IO */
+        BFA_REQQ_QOS_MD = 2,    /*  all medium priority IO      */
+        BFA_REQQ_QOS_HI = 3,    /*  all high priority IO        */
+};
+
+static inline void
+bfa_reqq_winit(struct bfa_reqq_wait_s *wqe, void (*qresume) (void *cbarg),
+                        void *cbarg)
+{
+        wqe->qresume = qresume;
+        wqe->cbarg = cbarg;
+}
+
+#define bfa_reqq(__bfa, __reqq) &(__bfa)->reqq_waitq[__reqq]
+
+/**
+ * static inline void
+ * bfa_reqq_wait(struct bfa_s *bfa, int reqq, struct bfa_reqq_wait_s *wqe)
+ */
+#define bfa_reqq_wait(__bfa, __reqq, __wqe) do {                        \
+                                                                        \
+                struct list_head *waitq = bfa_reqq(__bfa, __reqq);      \
+                                                                        \
+                bfa_assert(((__reqq) < BFI_IOC_MAX_CQS));      \
+                bfa_assert((__wqe)->qresume && (__wqe)->cbarg);      \
+                                                                        \
+                list_add_tail(&(__wqe)->qe, waitq);      \
+} while (0)
+
+#define bfa_reqq_wcancel(__wqe) list_del(&(__wqe)->qe)
+
+#endif /* __BFA_INTR_PRIV_H__ */