diff options
Diffstat (limited to 'drivers/infiniband/hw/hfi1/user_exp_rcv.h')
| -rw-r--r-- | drivers/infiniband/hw/hfi1/user_exp_rcv.h | 58 |
1 files changed, 36 insertions, 22 deletions
diff --git a/drivers/infiniband/hw/hfi1/user_exp_rcv.h b/drivers/infiniband/hw/hfi1/user_exp_rcv.h index 5250c897298d..e383cc01a2bf 100644 --- a/drivers/infiniband/hw/hfi1/user_exp_rcv.h +++ b/drivers/infiniband/hw/hfi1/user_exp_rcv.h @@ -49,30 +49,44 @@ #include "hfi.h" -#define EXP_TID_TIDLEN_MASK 0x7FFULL -#define EXP_TID_TIDLEN_SHIFT 0 -#define EXP_TID_TIDCTRL_MASK 0x3ULL -#define EXP_TID_TIDCTRL_SHIFT 20 -#define EXP_TID_TIDIDX_MASK 0x3FFULL -#define EXP_TID_TIDIDX_SHIFT 22 -#define EXP_TID_GET(tid, field) \ - (((tid) >> EXP_TID_TID##field##_SHIFT) & EXP_TID_TID##field##_MASK) +#include "exp_rcv.h" -#define EXP_TID_SET(field, value) \ - (((value) & EXP_TID_TID##field##_MASK) << \ - EXP_TID_TID##field##_SHIFT) -#define EXP_TID_CLEAR(tid, field) ({ \ - (tid) &= ~(EXP_TID_TID##field##_MASK << \ - EXP_TID_TID##field##_SHIFT); \ - }) -#define EXP_TID_RESET(tid, field, value) do { \ - EXP_TID_CLEAR(tid, field); \ - (tid) |= EXP_TID_SET(field, (value)); \ - } while (0) +struct tid_pageset { + u16 idx; + u16 count; +}; -void hfi1_user_exp_rcv_grp_free(struct hfi1_ctxtdata *uctxt); -int hfi1_user_exp_rcv_grp_init(struct hfi1_filedata *fd); -int hfi1_user_exp_rcv_init(struct hfi1_filedata *fd); +struct tid_user_buf { + unsigned long vaddr; + unsigned long length; + unsigned int npages; + struct page **pages; + struct tid_pageset *psets; + unsigned int n_psets; +}; + +struct tid_rb_node { + struct mmu_rb_node mmu; + unsigned long phys; + struct tid_group *grp; + u32 rcventry; + dma_addr_t dma_addr; + bool freed; + unsigned int npages; + struct page *pages[0]; +}; + +static inline int num_user_pages(unsigned long addr, + unsigned long len) +{ + const unsigned long spage = addr & PAGE_MASK; + const unsigned long epage = (addr + len - 1) & PAGE_MASK; + + return 1 + ((epage - spage) >> PAGE_SHIFT); +} + +int hfi1_user_exp_rcv_init(struct hfi1_filedata *fd, + struct hfi1_ctxtdata *uctxt); void hfi1_user_exp_rcv_free(struct hfi1_filedata *fd); int hfi1_user_exp_rcv_setup(struct hfi1_filedata *fd, struct hfi1_tid_info *tinfo); |