[SCSI] bfa: DMA memory allocation enhancement.
- Modified the design such that each BFA sub-module will provide
the amount of DMA and KVA memory needed by it and queues the
same request to the global dma and kva info queues.
- During the memory allocation we iterate over this queue to allocate
the dma and kva memory requested by sub-modules.
- The change is needed to avoid requesting the aggregate amount of memory
needed by all the BFA sub-modules as one contiguous chunk.
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
diff --git a/drivers/scsi/bfa/bfa.h b/drivers/scsi/bfa/bfa.h
index ee072d9..67742dc 100644
--- a/drivers/scsi/bfa/bfa.h
+++ b/drivers/scsi/bfa/bfa.h
@@ -172,34 +172,6 @@
extern char bfa_version[];
-/*
- * BFA memory resources
- */
-enum bfa_mem_type {
- BFA_MEM_TYPE_KVA = 1, /* Kernel Virtual Memory *(non-dma-able) */
- BFA_MEM_TYPE_DMA = 2, /* DMA-able memory */
- BFA_MEM_TYPE_MAX = BFA_MEM_TYPE_DMA,
-};
-
-struct bfa_mem_elem_s {
- enum bfa_mem_type mem_type; /* see enum bfa_mem_type */
- u32 mem_len; /* Total Length in Bytes */
- u8 *kva; /* kernel virtual address */
- u64 dma; /* dma address if DMA memory */
- u8 *kva_curp; /* kva allocation cursor */
- u64 dma_curp; /* dma allocation cursor */
-};
-
-struct bfa_meminfo_s {
- struct bfa_mem_elem_s meminfo[BFA_MEM_TYPE_MAX];
-};
-#define bfa_meminfo_kva(_m) \
- ((_m)->meminfo[BFA_MEM_TYPE_KVA - 1].kva_curp)
-#define bfa_meminfo_dma_virt(_m) \
- ((_m)->meminfo[BFA_MEM_TYPE_DMA - 1].kva_curp)
-#define bfa_meminfo_dma_phys(_m) \
- ((_m)->meminfo[BFA_MEM_TYPE_DMA - 1].dma_curp)
-
struct bfa_iocfc_regs_s {
void __iomem *intr_status;
void __iomem *intr_mask;
@@ -294,8 +266,19 @@
void *updateq_cbarg; /* bios callback arg */
u32 intr_mask;
struct bfa_faa_args_s faa_args;
+ struct bfa_mem_dma_s ioc_dma;
+ struct bfa_mem_dma_s iocfc_dma;
+ struct bfa_mem_dma_s reqq_dma[BFI_IOC_MAX_CQS];
+ struct bfa_mem_dma_s rspq_dma[BFI_IOC_MAX_CQS];
+ struct bfa_mem_kva_s kva_seg;
};
+#define BFA_MEM_IOC_DMA(_bfa) (&((_bfa)->iocfc.ioc_dma))
+#define BFA_MEM_IOCFC_DMA(_bfa) (&((_bfa)->iocfc.iocfc_dma))
+#define BFA_MEM_REQQ_DMA(_bfa, _qno) (&((_bfa)->iocfc.reqq_dma[(_qno)]))
+#define BFA_MEM_RSPQ_DMA(_bfa, _qno) (&((_bfa)->iocfc.rspq_dma[(_qno)]))
+#define BFA_MEM_IOCFC_KVA(_bfa) (&((_bfa)->iocfc.kva_seg))
+
#define bfa_fn_lpu(__bfa) \
bfi_fn_lpu(bfa_ioc_pcifn(&(__bfa)->ioc), bfa_ioc_portid(&(__bfa)->ioc))
#define bfa_msix_init(__bfa, __nvecs) \
@@ -329,17 +312,17 @@
/*
* FC specific IOC functions.
*/
-void bfa_iocfc_meminfo(struct bfa_iocfc_cfg_s *cfg, u32 *km_len,
- u32 *dm_len);
+void bfa_iocfc_meminfo(struct bfa_iocfc_cfg_s *cfg,
+ struct bfa_meminfo_s *meminfo,
+ struct bfa_s *bfa);
void bfa_iocfc_attach(struct bfa_s *bfa, void *bfad,
struct bfa_iocfc_cfg_s *cfg,
- struct bfa_meminfo_s *meminfo,
struct bfa_pcidev_s *pcidev);
void bfa_iocfc_init(struct bfa_s *bfa);
void bfa_iocfc_start(struct bfa_s *bfa);
void bfa_iocfc_stop(struct bfa_s *bfa);
void bfa_iocfc_isr(void *bfa, struct bfi_mbmsg_s *msg);
-void bfa_iocfc_set_snsbase(struct bfa_s *bfa, u64 snsbase_pa);
+void bfa_iocfc_set_snsbase(struct bfa_s *bfa, int seg_no, u64 snsbase_pa);
bfa_boolean_t bfa_iocfc_is_operational(struct bfa_s *bfa);
void bfa_iocfc_reset_queues(struct bfa_s *bfa);
@@ -418,7 +401,8 @@
void bfa_cfg_get_default(struct bfa_iocfc_cfg_s *cfg);
void bfa_cfg_get_min(struct bfa_iocfc_cfg_s *cfg);
void bfa_cfg_get_meminfo(struct bfa_iocfc_cfg_s *cfg,
- struct bfa_meminfo_s *meminfo);
+ struct bfa_meminfo_s *meminfo,
+ struct bfa_s *bfa);
void bfa_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg,
struct bfa_meminfo_s *meminfo,
struct bfa_pcidev_s *pcidev);
