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authorHarish Chegondi <harish.chegondi@intel.com>2017-08-21 18:27:29 -0700
committerDoug Ledford <dledford@redhat.com>2017-08-28 19:12:22 -0400
commit32500f2763906602725006f1dc833c8ea28dfd07 (patch)
treeb27e593054566cc9ddba816d594b26d189f10e24 /drivers/infiniband/hw/hfi1/user_sdma.c
parent637f4600a8d3be44146ad7fbb5188484c3b0a1d4 (diff)
downloadlinux-32500f2763906602725006f1dc833c8ea28dfd07.tar.bz2
IB/hfi1: Move structure and MACRO definitions in user_sdma.c to user_sdma.h
Clean up user_sdma.c by moving the structure and MACRO definitions into the header file user_sdma.h Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Harish Chegondi <harish.chegondi@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/hw/hfi1/user_sdma.c')
-rw-r--r--drivers/infiniband/hw/hfi1/user_sdma.c168
1 files changed, 0 insertions, 168 deletions
diff --git a/drivers/infiniband/hw/hfi1/user_sdma.c b/drivers/infiniband/hw/hfi1/user_sdma.c
index 8a1653ab2f65..dacb0fce49c6 100644
--- a/drivers/infiniband/hw/hfi1/user_sdma.c
+++ b/drivers/infiniband/hw/hfi1/user_sdma.c
@@ -74,176 +74,8 @@ static uint hfi1_sdma_comp_ring_size = 128;
module_param_named(sdma_comp_size, hfi1_sdma_comp_ring_size, uint, S_IRUGO);
MODULE_PARM_DESC(sdma_comp_size, "Size of User SDMA completion ring. Default: 128");
-/* The maximum number of Data io vectors per message/request */
-#define MAX_VECTORS_PER_REQ 8
-/*
- * Maximum number of packet to send from each message/request
- * before moving to the next one.
- */
-#define MAX_PKTS_PER_QUEUE 16
-
-#define num_pages(x) (1 + ((((x) - 1) & PAGE_MASK) >> PAGE_SHIFT))
-
-#define req_opcode(x) \
- (((x) >> HFI1_SDMA_REQ_OPCODE_SHIFT) & HFI1_SDMA_REQ_OPCODE_MASK)
-#define req_version(x) \
- (((x) >> HFI1_SDMA_REQ_VERSION_SHIFT) & HFI1_SDMA_REQ_OPCODE_MASK)
-#define req_iovcnt(x) \
- (((x) >> HFI1_SDMA_REQ_IOVCNT_SHIFT) & HFI1_SDMA_REQ_IOVCNT_MASK)
-
-/* Number of BTH.PSN bits used for sequence number in expected rcvs */
-#define BTH_SEQ_MASK 0x7ffull
-
-#define AHG_KDETH_INTR_SHIFT 12
-#define AHG_KDETH_SH_SHIFT 13
-#define AHG_KDETH_ARRAY_SIZE 9
-
-#define PBC2LRH(x) ((((x) & 0xfff) << 2) - 4)
-#define LRH2PBC(x) ((((x) >> 2) + 1) & 0xfff)
-
-#define AHG_HEADER_SET(arr, idx, dw, bit, width, value) \
- do { \
- if ((idx) < ARRAY_SIZE((arr))) \
- (arr)[(idx++)] = sdma_build_ahg_descriptor( \
- (__force u16)(value), (dw), (bit), \
- (width)); \
- else \
- return -ERANGE; \
- } while (0)
-
-/* Tx request flag bits */
-#define TXREQ_FLAGS_REQ_ACK BIT(0) /* Set the ACK bit in the header */
-#define TXREQ_FLAGS_REQ_DISABLE_SH BIT(1) /* Disable header suppression */
-
-#define SDMA_PKT_Q_INACTIVE BIT(0)
-#define SDMA_PKT_Q_ACTIVE BIT(1)
-#define SDMA_PKT_Q_DEFERRED BIT(2)
-
-/*
- * Maximum retry attempts to submit a TX request
- * before putting the process to sleep.
- */
-#define MAX_DEFER_RETRY_COUNT 1
-
static unsigned initial_pkt_count = 8;
-#define SDMA_IOWAIT_TIMEOUT 1000 /* in milliseconds */
-
-struct sdma_mmu_node;
-
-struct user_sdma_iovec {
- struct list_head list;
- struct iovec iov;
- /* number of pages in this vector */
- unsigned npages;
- /* array of pinned pages for this vector */
- struct page **pages;
- /*
- * offset into the virtual address space of the vector at
- * which we last left off.
- */
- u64 offset;
- struct sdma_mmu_node *node;
-};
-
-struct sdma_mmu_node {
- struct mmu_rb_node rb;
- struct hfi1_user_sdma_pkt_q *pq;
- atomic_t refcount;
- struct page **pages;
- unsigned npages;
-};
-
-/* evict operation argument */
-struct evict_data {
- u32 cleared; /* count evicted so far */
- u32 target; /* target count to evict */
-};
-
-struct user_sdma_request {
- /* This is the original header from user space */
- struct hfi1_pkt_header hdr;
-
- /* Read mostly fields */
- struct hfi1_user_sdma_pkt_q *pq ____cacheline_aligned_in_smp;
- struct hfi1_user_sdma_comp_q *cq;
- /*
- * Pointer to the SDMA engine for this request.
- * Since different request could be on different VLs,
- * each request will need it's own engine pointer.
- */
- struct sdma_engine *sde;
- struct sdma_req_info info;
- /* TID array values copied from the tid_iov vector */
- u32 *tids;
- /* total length of the data in the request */
- u32 data_len;
- /* number of elements copied to the tids array */
- u16 n_tids;
- /*
- * We copy the iovs for this request (based on
- * info.iovcnt). These are only the data vectors
- */
- u8 data_iovs;
- s8 ahg_idx;
-
- /* Writeable fields shared with interrupt */
- u64 seqcomp ____cacheline_aligned_in_smp;
- u64 seqsubmitted;
- /* status of the last txreq completed */
- int status;
-
- /* Send side fields */
- struct list_head txps ____cacheline_aligned_in_smp;
- u64 seqnum;
- /*
- * KDETH.OFFSET (TID) field
- * The offset can cover multiple packets, depending on the
- * size of the TID entry.
- */
- u32 tidoffset;
- /*
- * KDETH.Offset (Eager) field
- * We need to remember the initial value so the headers
- * can be updated properly.
- */
- u32 koffset;
- u32 sent;
- /* TID index copied from the tid_iov vector */
- u16 tididx;
- /* progress index moving along the iovs array */
- u8 iov_idx;
- u8 done;
- u8 has_error;
-
- struct user_sdma_iovec iovs[MAX_VECTORS_PER_REQ];
-} ____cacheline_aligned_in_smp;
-
-/*
- * A single txreq could span up to 3 physical pages when the MTU
- * is sufficiently large (> 4K). Each of the IOV pointers also
- * needs it's own set of flags so the vector has been handled
- * independently of each other.
- */
-struct user_sdma_txreq {
- /* Packet header for the txreq */
- struct hfi1_pkt_header hdr;
- struct sdma_txreq txreq;
- struct list_head list;
- struct user_sdma_request *req;
- u16 flags;
- unsigned busycount;
- u64 seqnum;
-};
-
-#define SDMA_DBG(req, fmt, ...) \
- hfi1_cdbg(SDMA, "[%u:%u:%u:%u] " fmt, (req)->pq->dd->unit, \
- (req)->pq->ctxt, (req)->pq->subctxt, (req)->info.comp_idx, \
- ##__VA_ARGS__)
-#define SDMA_Q_DBG(pq, fmt, ...) \
- hfi1_cdbg(SDMA, "[%u:%u:%u] " fmt, (pq)->dd->unit, (pq)->ctxt, \
- (pq)->subctxt, ##__VA_ARGS__)
-
static int user_sdma_send_pkts(struct user_sdma_request *req,
unsigned maxpkts);
static void user_sdma_txreq_cb(struct sdma_txreq *txreq, int status);