tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
enic: mask off some reserved bits in CQ descriptor for future use
Signed-off-by: Scott Feldman <scofeldm@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
authored by
Scott Feldman
and committed by
David S. Miller
cb3c7669
27372bf5
+3
-2
+3
-2
drivers/net/enic/cq_desc.h
+3
-2
drivers/net/enic/cq_desc.h
···
44
44
u8 type_color;
45
45
};
46
46
47
-
#define CQ_DESC_TYPE_BITS 7
47
+
#define CQ_DESC_TYPE_BITS 4
48
48
#define CQ_DESC_TYPE_MASK ((1 << CQ_DESC_TYPE_BITS) - 1)
49
49
#define CQ_DESC_COLOR_MASK 1
50
+
#define CQ_DESC_COLOR_SHIFT 7
50
51
#define CQ_DESC_Q_NUM_BITS 10
51
52
#define CQ_DESC_Q_NUM_MASK ((1 << CQ_DESC_Q_NUM_BITS) - 1)
52
53
#define CQ_DESC_COMP_NDX_BITS 12
···
59
58
const struct cq_desc *desc = desc_arg;
60
59
const u8 type_color = desc->type_color;
61
60
62
-
*color = (type_color >> CQ_DESC_TYPE_BITS) & CQ_DESC_COLOR_MASK;
61
+
*color = (type_color >> CQ_DESC_COLOR_SHIFT) & CQ_DESC_COLOR_MASK;
63
62
64
63
/*
65
64
* Make sure color bit is read from desc *before* other fields