obj-$(CONFIG_INFINIBAND_HFI1) += hfi1.o
hfi1-y := affinity.o chip.o device.o driver.o efivar.o \
- eprom.o file_ops.o firmware.o \
+ eprom.o exp_rcv.o file_ops.o firmware.o \
init.o intr.o mad.o mmu_rb.o pcie.o pio.o pio_copy.o platform.o \
qp.o qsfp.o rc.o ruc.o sdma.o sysfs.o trace.o \
uc.o ud.o user_exp_rcv.o user_pages.o user_sdma.o verbs.o \
--- /dev/null
+/*
+ * Copyright(c) 2017 Intel Corporation.
+ *
+ * This file is provided under a dual BSD/GPLv2 license. When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License 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.
+ *
+ * BSD LICENSE
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * - Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "exp_rcv.h"
+#include "trace.h"
+
+/**
+ * exp_tid_group_init - initialize exp_tid_set
+ * @set - the set
+ */
+void hfi1_exp_tid_group_init(struct exp_tid_set *set)
+{
+ INIT_LIST_HEAD(&set->list);
+ set->count = 0;
+}
+
+/**
+ * alloc_ctxt_rcv_groups - initialize expected receive groups
+ * @rcd - the context to add the groupings to
+ */
+int hfi1_alloc_ctxt_rcv_groups(struct hfi1_ctxtdata *rcd)
+{
+ struct hfi1_devdata *dd = rcd->dd;
+ u32 tidbase;
+ struct tid_group *grp;
+ int i;
+
+ hfi1_exp_tid_group_init(&rcd->tid_group_list);
+ hfi1_exp_tid_group_init(&rcd->tid_used_list);
+ hfi1_exp_tid_group_init(&rcd->tid_full_list);
+
+ tidbase = rcd->expected_base;
+ for (i = 0; i < rcd->expected_count /
+ dd->rcv_entries.group_size; i++) {
+ grp = kzalloc(sizeof(*grp), GFP_KERNEL);
+ if (!grp)
+ goto bail;
+ grp->size = dd->rcv_entries.group_size;
+ grp->base = tidbase;
+ tid_group_add_tail(grp, &rcd->tid_group_list);
+ tidbase += dd->rcv_entries.group_size;
+ }
+
+ return 0;
+bail:
+ hfi1_free_ctxt_rcv_groups(rcd);
+ return -ENOMEM;
+}
+
+/**
+ * free_ctxt_rcv_groups - free expected receive groups
+ * @rcd - the context to free
+ *
+ * The routine dismantles the expect receive linked
+ * list and clears any tids associated with the receive
+ * context.
+ *
+ * This should only be called for kernel contexts and the
+ * a base user context.
+ */
+void hfi1_free_ctxt_rcv_groups(struct hfi1_ctxtdata *rcd)
+{
+ struct tid_group *grp, *gptr;
+
+ WARN_ON(!EXP_TID_SET_EMPTY(rcd->tid_full_list));
+ WARN_ON(!EXP_TID_SET_EMPTY(rcd->tid_used_list));
+
+ list_for_each_entry_safe(grp, gptr, &rcd->tid_group_list.list, list) {
+ tid_group_remove(grp, &rcd->tid_group_list);
+ kfree(grp);
+ }
+
+ hfi1_clear_tids(rcd);
+}
--- /dev/null
+#ifndef _HFI1_EXP_RCV_H
+#define _HFI1_EXP_RCV_H
+/*
+ * Copyright(c) 2017 Intel Corporation.
+ *
+ * This file is provided under a dual BSD/GPLv2 license. When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License 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.
+ *
+ * BSD LICENSE
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * - Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "hfi.h"
+
+#define EXP_TID_SET_EMPTY(set) (set.count == 0 && list_empty(&set.list))
+
+#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)
+
+#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)
+
+/*
+ * Define fields in the KDETH header so we can update the header
+ * template.
+ */
+#define KDETH_OFFSET_SHIFT 0
+#define KDETH_OFFSET_MASK 0x7fff
+#define KDETH_OM_SHIFT 15
+#define KDETH_OM_MASK 0x1
+#define KDETH_TID_SHIFT 16
+#define KDETH_TID_MASK 0x3ff
+#define KDETH_TIDCTRL_SHIFT 26
+#define KDETH_TIDCTRL_MASK 0x3
+#define KDETH_INTR_SHIFT 28
+#define KDETH_INTR_MASK 0x1
+#define KDETH_SH_SHIFT 29
+#define KDETH_SH_MASK 0x1
+#define KDETH_KVER_SHIFT 30
+#define KDETH_KVER_MASK 0x3
+#define KDETH_JKEY_SHIFT 0x0
+#define KDETH_JKEY_MASK 0xff
+#define KDETH_HCRC_UPPER_SHIFT 16
+#define KDETH_HCRC_UPPER_MASK 0xff
+#define KDETH_HCRC_LOWER_SHIFT 24
+#define KDETH_HCRC_LOWER_MASK 0xff
+
+#define KDETH_GET(val, field) \
+ (((le32_to_cpu((val))) >> KDETH_##field##_SHIFT) & KDETH_##field##_MASK)
+#define KDETH_SET(dw, field, val) do { \
+ u32 dwval = le32_to_cpu(dw); \
+ dwval &= ~(KDETH_##field##_MASK << KDETH_##field##_SHIFT); \
+ dwval |= (((val) & KDETH_##field##_MASK) << \
+ KDETH_##field##_SHIFT); \
+ dw = cpu_to_le32(dwval); \
+ } while (0)
+
+#define KDETH_RESET(dw, field, val) ({ dw = 0; KDETH_SET(dw, field, val); })
+
+/* KDETH OM multipliers and switch over point */
+#define KDETH_OM_SMALL 4
+#define KDETH_OM_SMALL_SHIFT 2
+#define KDETH_OM_LARGE 64
+#define KDETH_OM_LARGE_SHIFT 6
+#define KDETH_OM_MAX_SIZE (1 << ((KDETH_OM_LARGE / KDETH_OM_SMALL) + 1))
+
+struct tid_group {
+ struct list_head list;
+ u32 base;
+ u8 size;
+ u8 used;
+ u8 map;
+};
+
+/*
+ * Write an "empty" RcvArray entry.
+ * This function exists so the TID registaration code can use it
+ * to write to unused/unneeded entries and still take advantage
+ * of the WC performance improvements. The HFI will ignore this
+ * write to the RcvArray entry.
+ */
+static inline void rcv_array_wc_fill(struct hfi1_devdata *dd, u32 index)
+{
+ /*
+ * Doing the WC fill writes only makes sense if the device is
+ * present and the RcvArray has been mapped as WC memory.
+ */
+ if ((dd->flags & HFI1_PRESENT) && dd->rcvarray_wc)
+ writeq(0, dd->rcvarray_wc + (index * 8));
+}
+
+static inline void tid_group_add_tail(struct tid_group *grp,
+ struct exp_tid_set *set)
+{
+ list_add_tail(&grp->list, &set->list);
+ set->count++;
+}
+
+static inline void tid_group_remove(struct tid_group *grp,
+ struct exp_tid_set *set)
+{
+ list_del_init(&grp->list);
+ set->count--;
+}
+
+static inline void tid_group_move(struct tid_group *group,
+ struct exp_tid_set *s1,
+ struct exp_tid_set *s2)
+{
+ tid_group_remove(group, s1);
+ tid_group_add_tail(group, s2);
+}
+
+static inline struct tid_group *tid_group_pop(struct exp_tid_set *set)
+{
+ struct tid_group *grp =
+ list_first_entry(&set->list, struct tid_group, list);
+ list_del_init(&grp->list);
+ set->count--;
+ return grp;
+}
+
+static inline u32 rcventry2tidinfo(u32 rcventry)
+{
+ u32 pair = rcventry & ~0x1;
+
+ return EXP_TID_SET(IDX, pair >> 1) |
+ EXP_TID_SET(CTRL, 1 << (rcventry - pair));
+}
+
+int hfi1_alloc_ctxt_rcv_groups(struct hfi1_ctxtdata *rcd);
+void hfi1_free_ctxt_rcv_groups(struct hfi1_ctxtdata *rcd);
+void hfi1_exp_tid_group_init(struct exp_tid_set *set);
+
+#endif /* _HFI1_EXP_RCV_H */
dd->rcd[uctxt->ctxt] = NULL;
- hfi1_user_exp_rcv_grp_free(uctxt);
+ hfi1_free_ctxt_rcv_groups(uctxt);
hfi1_clear_ctxt_pkey(dd, uctxt);
uctxt->rcvwait_to = 0;
if (ret)
goto setup_failed;
- ret = hfi1_user_exp_rcv_grp_init(fd);
+ ret = hfi1_alloc_ctxt_rcv_groups(uctxt);
if (ret)
goto setup_failed;
#include "trace.h"
#include "mmu_rb.h"
-struct tid_group {
- struct list_head list;
- u32 base;
- u8 size;
- u8 used;
- u8 map;
-};
-
struct tid_rb_node {
struct mmu_rb_node mmu;
unsigned long phys;
u16 count;
};
-#define EXP_TID_SET_EMPTY(set) (set.count == 0 && list_empty(&set.list))
-
#define num_user_pages(vaddr, len) \
(1 + (((((unsigned long)(vaddr) + \
(unsigned long)(len) - 1) & PAGE_MASK) - \
.invalidate = tid_rb_invalidate
};
-static inline u32 rcventry2tidinfo(u32 rcventry)
-{
- u32 pair = rcventry & ~0x1;
-
- return EXP_TID_SET(IDX, pair >> 1) |
- EXP_TID_SET(CTRL, 1 << (rcventry - pair));
-}
-
-static inline void exp_tid_group_init(struct exp_tid_set *set)
-{
- INIT_LIST_HEAD(&set->list);
- set->count = 0;
-}
-
-static inline void tid_group_remove(struct tid_group *grp,
- struct exp_tid_set *set)
-{
- list_del_init(&grp->list);
- set->count--;
-}
-
-static inline void tid_group_add_tail(struct tid_group *grp,
- struct exp_tid_set *set)
-{
- list_add_tail(&grp->list, &set->list);
- set->count++;
-}
-
-static inline struct tid_group *tid_group_pop(struct exp_tid_set *set)
-{
- struct tid_group *grp =
- list_first_entry(&set->list, struct tid_group, list);
- list_del_init(&grp->list);
- set->count--;
- return grp;
-}
-
-static inline void tid_group_move(struct tid_group *group,
- struct exp_tid_set *s1,
- struct exp_tid_set *s2)
-{
- tid_group_remove(group, s1);
- tid_group_add_tail(group, s2);
-}
-
-int hfi1_user_exp_rcv_grp_init(struct hfi1_filedata *fd)
-{
- struct hfi1_ctxtdata *uctxt = fd->uctxt;
- struct hfi1_devdata *dd = fd->dd;
- u32 tidbase;
- u32 i;
- struct tid_group *grp, *gptr;
-
- exp_tid_group_init(&uctxt->tid_group_list);
- exp_tid_group_init(&uctxt->tid_used_list);
- exp_tid_group_init(&uctxt->tid_full_list);
-
- tidbase = uctxt->expected_base;
- for (i = 0; i < uctxt->expected_count /
- dd->rcv_entries.group_size; i++) {
- grp = kzalloc(sizeof(*grp), GFP_KERNEL);
- if (!grp)
- goto grp_failed;
-
- grp->size = dd->rcv_entries.group_size;
- grp->base = tidbase;
- tid_group_add_tail(grp, &uctxt->tid_group_list);
- tidbase += dd->rcv_entries.group_size;
- }
-
- return 0;
-
-grp_failed:
- list_for_each_entry_safe(grp, gptr, &uctxt->tid_group_list.list,
- list) {
- list_del_init(&grp->list);
- kfree(grp);
- }
-
- return -ENOMEM;
-}
-
/*
* Initialize context and file private data needed for Expected
* receive caching. This needs to be done after the context has
return ret;
}
-void hfi1_user_exp_rcv_grp_free(struct hfi1_ctxtdata *uctxt)
-{
- struct tid_group *grp, *gptr;
-
- list_for_each_entry_safe(grp, gptr, &uctxt->tid_group_list.list,
- list) {
- list_del_init(&grp->list);
- kfree(grp);
- }
- hfi1_clear_tids(uctxt);
-}
-
void hfi1_user_exp_rcv_free(struct hfi1_filedata *fd)
{
struct hfi1_ctxtdata *uctxt = fd->uctxt;
}
/*
- * Write an "empty" RcvArray entry.
- * This function exists so the TID registaration code can use it
- * to write to unused/unneeded entries and still take advantage
- * of the WC performance improvements. The HFI will ignore this
- * write to the RcvArray entry.
- */
-static inline void rcv_array_wc_fill(struct hfi1_devdata *dd, u32 index)
-{
- /*
- * Doing the WC fill writes only makes sense if the device is
- * present and the RcvArray has been mapped as WC memory.
- */
- if ((dd->flags & HFI1_PRESENT) && dd->rcvarray_wc)
- writeq(0, dd->rcvarray_wc + (index * 8));
-}
-
-/*
* RcvArray entry allocation for Expected Receives is done by the
* following algorithm:
*
#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)
-
-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);
void hfi1_user_exp_rcv_free(struct hfi1_filedata *fd);
int hfi1_user_exp_rcv_setup(struct hfi1_filedata *fd,
/* Number of BTH.PSN bits used for sequence number in expected rcvs */
#define BTH_SEQ_MASK 0x7ffull
-/*
- * Define fields in the KDETH header so we can update the header
- * template.
- */
-#define KDETH_OFFSET_SHIFT 0
-#define KDETH_OFFSET_MASK 0x7fff
-#define KDETH_OM_SHIFT 15
-#define KDETH_OM_MASK 0x1
-#define KDETH_TID_SHIFT 16
-#define KDETH_TID_MASK 0x3ff
-#define KDETH_TIDCTRL_SHIFT 26
-#define KDETH_TIDCTRL_MASK 0x3
-#define KDETH_INTR_SHIFT 28
-#define KDETH_INTR_MASK 0x1
-#define KDETH_SH_SHIFT 29
-#define KDETH_SH_MASK 0x1
-#define KDETH_HCRC_UPPER_SHIFT 16
-#define KDETH_HCRC_UPPER_MASK 0xff
-#define KDETH_HCRC_LOWER_SHIFT 24
-#define KDETH_HCRC_LOWER_MASK 0xff
-
#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 KDETH_GET(val, field) \
- (((le32_to_cpu((val))) >> KDETH_##field##_SHIFT) & KDETH_##field##_MASK)
-#define KDETH_SET(dw, field, val) do { \
- u32 dwval = le32_to_cpu(dw); \
- dwval &= ~(KDETH_##field##_MASK << KDETH_##field##_SHIFT); \
- dwval |= (((val) & KDETH_##field##_MASK) << \
- KDETH_##field##_SHIFT); \
- dw = cpu_to_le32(dwval); \
- } while (0)
-
#define AHG_HEADER_SET(arr, idx, dw, bit, width, value) \
do { \
if ((idx) < ARRAY_SIZE((arr))) \
return -ERANGE; \
} while (0)
-/* KDETH OM multipliers and switch over point */
-#define KDETH_OM_SMALL 4
-#define KDETH_OM_SMALL_SHIFT 2
-#define KDETH_OM_LARGE 64
-#define KDETH_OM_LARGE_SHIFT 6
-#define KDETH_OM_MAX_SIZE (1 << ((KDETH_OM_LARGE / KDETH_OM_SMALL) + 1))
-
/* 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 */
OSDN Git Service
