D7360.id.diff
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	Index: head/sys/dev/hyperv/storvsc/hv_storvsc_drv_freebsd.c
	===================================================================
	--- head/sys/dev/hyperv/storvsc/hv_storvsc_drv_freebsd.c
	+++ head/sys/dev/hyperv/storvsc/hv_storvsc_drv_freebsd.c
	@@ -88,10 +88,25 @@

	#define VSTOR_PKT_SIZE (sizeof(struct vstor_packet) - vmscsi_size_delta)

	-#define STORVSC_DATA_SEGCNT_MAX 32
	+/*
	+ * 33 segments are needed to allow 128KB maxio, in case the data
	+ * in the first page is _not_ PAGE_SIZE aligned, e.g.
	+ *
	+ * \|<----------- 128KB ----------->\|
	+ * \| \|
	+ * 0 2K 4K 8K 16K 124K 128K 130K
	+ * \| \| \| \| \| \| \| \|
	+ * +--+--+-----+-----+.......+-----+--+--+
	+ * \| \| \| \| \| \| \| \| \| DATA
	+ * \| \| \| \| \| \| \| \| \|
	+ * +--+--+-----+-----+.......------+--+--+
	+ * \| \| \| \|
	+ * \| 1\| 31 \| 1\| ...... # of segments
	+ */
	+#define STORVSC_DATA_SEGCNT_MAX 33
	#define STORVSC_DATA_SEGSZ_MAX PAGE_SIZE
	#define STORVSC_DATA_SIZE_MAX \
	- (STORVSC_DATA_SEGCNT_MAX * STORVSC_DATA_SEGSZ_MAX)
	+ ((STORVSC_DATA_SEGCNT_MAX - 1) * STORVSC_DATA_SEGSZ_MAX)

	struct storvsc_softc;

	@@ -1386,6 +1401,7 @@
	cpi->hba_misc = PIM_NOBUSRESET;
	if (hv_storvsc_use_pim_unmapped)
	cpi->hba_misc \|= PIM_UNMAPPED;
	+ cpi->maxio = STORVSC_DATA_SIZE_MAX;
	cpi->hba_eng_cnt = 0;
	cpi->max_target = STORVSC_MAX_TARGETS;
	cpi->max_lun = sc->hs_drv_props->drv_max_luns_per_target;