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Index: sys/compat/linuxkpi/common/include/linux/kernel.h
===================================================================
--- sys/compat/linuxkpi/common/include/linux/kernel.h
+++ sys/compat/linuxkpi/common/include/linux/kernel.h
@@ -390,6 +390,24 @@
}
static inline int
+kstrtou64(const char *cp, unsigned int base, u64 *res)
+{
+ char *end;
+ unsigned long long temp;
+
+ *res = temp = strtouq(cp, &end, base);
+
+ /* skip newline character, if any */
+ if (*end == '\n')
+ end++;
+ if (*cp == 0 || *end != 0)
+ return (-EINVAL);
+ if (temp != (u64)temp)
+ return (-ERANGE);
+ return (0);
+}
+
+static inline int
kstrtobool(const char *s, bool *res)
{
int len;
Index: sys/compat/linuxkpi/common/include/linux/lockdep.h
===================================================================
--- sys/compat/linuxkpi/common/include/linux/lockdep.h
+++ sys/compat/linuxkpi/common/include/linux/lockdep.h
@@ -36,6 +36,7 @@
};
#define lockdep_set_class(lock, key)
+#define lockdep_set_subclass(lock, sub)
#define lockdep_set_class_and_name(lock, key, name)
#define lockdep_set_current_reclaim_state(g) do { } while (0)
#define lockdep_clear_current_reclaim_state() do { } while (0)
@@ -60,6 +61,7 @@
__lock = __m;
return (LOCK_CLASS(__lock)->lc_owner(__lock, &__td) != 0);
}
+#define lockdep_is_held_type(_m, _t) lockdep_is_held(_m)
#else
#define lockdep_assert_held(m) do { } while (0)
@@ -67,6 +69,7 @@
#define lockdep_assert_held_once(m) do { } while (0)
#define lockdep_is_held(m) 1
+#define lockdep_is_held_type(_m, _t) 1
#endif
#define might_lock(m) do { } while (0)
@@ -75,5 +78,8 @@
#define lock_acquire(...) do { } while (0)
#define lock_release(...) do { } while (0)
#define lock_acquire_shared_recursive(...) do { } while (0)
+
+#define mutex_acquire(...) do { } while (0)
+#define mutex_release(...) do { } while (0)
#endif /* _LINUX_LOCKDEP_H_ */
Index: sys/compat/linuxkpi/common/include/linux/math64.h
===================================================================
--- sys/compat/linuxkpi/common/include/linux/math64.h
+++ sys/compat/linuxkpi/common/include/linux/math64.h
@@ -91,4 +91,13 @@
return ((uint64_t)a * b);
}
+static inline uint64_t
+div64_u64_round_up(uint64_t dividend, uint32_t divisor)
+{
+ return div64_u64(dividend + divisor - 1, divisor);
+}
+
+#define DIV64_U64_ROUND_UP(ll, d) \
+ div64_u64_round_up((ll), (d))
+
#endif /* _LINUX_MATH64_H */
Index: sys/compat/linuxkpi/common/include/linux/mutex.h
===================================================================
--- sys/compat/linuxkpi/common/include/linux/mutex.h
+++ sys/compat/linuxkpi/common/include/linux/mutex.h
@@ -66,6 +66,17 @@
linux_mutex_lock_interruptible(_m); \
})
+/*
+ * reuse the interruptable method since the sx
+ * lock handles both signals and interrupts
+ */
+#define mutex_lock_killable(_m) ({ \
+ MUTEX_SKIP() ? 0 : \
+ linux_mutex_lock_interruptible(_m); \
+})
+#define mutex_lock_killable_nested(_m, _sub) \
+ mutex_lock_killable(_m)
+
#define mutex_unlock(_m) do { \
if (MUTEX_SKIP()) \
break; \
Index: sys/compat/linuxkpi/common/include/linux/pci.h
===================================================================
--- sys/compat/linuxkpi/common/include/linux/pci.h
+++ sys/compat/linuxkpi/common/include/linux/pci.h
@@ -954,6 +954,46 @@
return (PCIE_LNK_WIDTH_UNKNOWN);
}
+static inline int
+pcie_get_mps(struct pci_dev *dev)
+{
+ return pci_get_max_payload(dev->dev.bsddev);
+}
+
+static inline u32
+PCIE_SPEED2MBS_ENC(enum pci_bus_speed spd)
+{
+ switch(spd) {
+ case PCIE_SPEED_16_0GT:
+ return 16000 * 128 / 130;
+ case PCIE_SPEED_8_0GT:
+ return 8000 * 128 / 130;
+ case PCIE_SPEED_5_0GT:
+ return 5000 * 8 / 10;
+ case PCIE_SPEED_2_5GT:
+ return 2500 * 8 / 10;
+ default:
+ return (0);
+ }
+}
+
+static inline u32
+pcie_bandwidth_available(struct pci_dev *pdev,
+ struct pci_dev **limiting,
+ enum pci_bus_speed *speed,
+ enum pcie_link_width *width)
+{
+ enum pci_bus_speed nspeed = pcie_get_speed_cap(pdev);
+ enum pcie_link_width nwidth = pcie_get_width_cap(pdev);
+
+ if (speed)
+ *speed = nspeed;
+ if (width)
+ *width = nwidth;
+
+ return nwidth * PCIE_SPEED2MBS_ENC(nspeed);
+}
+
/*
* The following functions can be used to attach/detach the LinuxKPI's
* PCI device runtime. The pci_driver and pci_device_id pointer is
Index: sys/compat/linuxkpi/common/include/linux/scatterlist.h
===================================================================
--- sys/compat/linuxkpi/common/include/linux/scatterlist.h
+++ sys/compat/linuxkpi/common/include/linux/scatterlist.h
@@ -66,6 +66,10 @@
} internal;
};
+struct sg_dma_page_iter {
+ struct sg_page_iter base;
+};
+
#define SCATTERLIST_MAX_SEGMENT (-1U & ~(PAGE_SIZE - 1))
#define SG_MAX_SINGLE_ALLOC (PAGE_SIZE / sizeof(struct scatterlist))
@@ -86,6 +90,10 @@
for (_sg_iter_init(sgl, iter, nents, pgoffset); \
(iter)->sg; _sg_iter_next(iter))
+#define for_each_sg_dma_page(sgl, iter, nents, pgoffset) \
+ for (_sg_iter_init(sgl, &(iter)->base, nents, pgoffset); \
+ (iter)->base.sg; _sg_iter_next(&(iter)->base))
+
#define for_each_sg(sglist, sg, sgmax, iter) \
for (iter = 0, sg = (sglist); iter < (sgmax); iter++, sg = sg_next(sg))
@@ -427,6 +435,37 @@
return (1);
}
+static int
+sg_dma_page_count(struct scatterlist *sg)
+{
+ return PAGE_ALIGN(sg->offset + sg_dma_len(sg)) >> PAGE_SHIFT;
+}
+
+static inline bool
+__sg_page_iter_dma_next(struct sg_dma_page_iter *dma_iter)
+{
+ struct sg_page_iter *piter = &dma_iter->base;
+
+ if (piter->internal.nents == 0)
+ return (0);
+ if (piter->sg == NULL)
+ return (0);
+
+ piter->sg_pgoffset += piter->internal.pg_advance;
+ piter->internal.pg_advance = 1;
+
+ while (piter->sg_pgoffset >= sg_dma_page_count(piter->sg)) {
+ piter->sg_pgoffset -= sg_dma_page_count(piter->sg);
+ piter->sg = sg_next(piter->sg);
+ if (--piter->internal.nents == 0)
+ return (0);
+ if (piter->sg == NULL)
+ return (0);
+ }
+
+ return true;
+}
+
static inline void
_sg_iter_init(struct scatterlist *sgl, struct sg_page_iter *iter,
unsigned int nents, unsigned long pgoffset)
@@ -444,9 +483,9 @@
}
static inline dma_addr_t
-sg_page_iter_dma_address(struct sg_page_iter *spi)
+sg_page_iter_dma_address(struct sg_dma_page_iter *dmai)
{
- return (spi->sg->dma_address + (spi->sg_pgoffset << PAGE_SHIFT));
+ return (dmai->base.sg->dma_address + (dmai->base.sg_pgoffset << PAGE_SHIFT));
}
static inline struct page *

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