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Revision 9f9f0f19994b42b3e5e8735d41b9c5136828a76c authored by Yunsheng Lin on 19 October 2021, 14:16:32 UTC, committed by David S. Miller on 20 October 2021, 10:38:11 UTC 
net: hns3: fix for miscalculation of rx unused desc
 
rx unused desc is the desc that need attatching new buffer
before refilling to hw to receive new packet, the number of
desc need attatching new buffer is calculated using next_to_use
and next_to_clean. when next_to_use == next_to_clean, currently
hns3 driver assumes that all the desc has the buffer attatched,
but 'next_to_use == next_to_clean' also means all the desc need
attatching new buffer if hw has comsumed all the desc and the
driver has not attatched any buffer to the desc yet.

This patch adds 'refill' in desc_cb to indicate whether a new
buffer has been refilled to a desc.

Fixes: 76ad4f0ee747 ("net: hns3: Add support of HNS3 Ethernet Driver for hip08 SoC")
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
1 parent adfb7b4
Raw File
ecc_curve_defs.h 
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _CRYTO_ECC_CURVE_DEFS_H
#define _CRYTO_ECC_CURVE_DEFS_H

/* NIST P-192: a = p - 3 */
static u64 nist_p192_g_x[] = { 0xF4FF0AFD82FF1012ull, 0x7CBF20EB43A18800ull,
				0x188DA80EB03090F6ull };
static u64 nist_p192_g_y[] = { 0x73F977A11E794811ull, 0x631011ED6B24CDD5ull,
				0x07192B95FFC8DA78ull };
static u64 nist_p192_p[] = { 0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFEull,
				0xFFFFFFFFFFFFFFFFull };
static u64 nist_p192_n[] = { 0x146BC9B1B4D22831ull, 0xFFFFFFFF99DEF836ull,
				0xFFFFFFFFFFFFFFFFull };
static u64 nist_p192_a[] = { 0xFFFFFFFFFFFFFFFCull, 0xFFFFFFFFFFFFFFFEull,
				0xFFFFFFFFFFFFFFFFull };
static u64 nist_p192_b[] = { 0xFEB8DEECC146B9B1ull, 0x0FA7E9AB72243049ull,
				0x64210519E59C80E7ull };
static struct ecc_curve nist_p192 = {
	.name = "nist_192",
	.g = {
		.x = nist_p192_g_x,
		.y = nist_p192_g_y,
		.ndigits = 3,
	},
	.p = nist_p192_p,
	.n = nist_p192_n,
	.a = nist_p192_a,
	.b = nist_p192_b
};

/* NIST P-256: a = p - 3 */
static u64 nist_p256_g_x[] = { 0xF4A13945D898C296ull, 0x77037D812DEB33A0ull,
				0xF8BCE6E563A440F2ull, 0x6B17D1F2E12C4247ull };
static u64 nist_p256_g_y[] = { 0xCBB6406837BF51F5ull, 0x2BCE33576B315ECEull,
				0x8EE7EB4A7C0F9E16ull, 0x4FE342E2FE1A7F9Bull };
static u64 nist_p256_p[] = { 0xFFFFFFFFFFFFFFFFull, 0x00000000FFFFFFFFull,
				0x0000000000000000ull, 0xFFFFFFFF00000001ull };
static u64 nist_p256_n[] = { 0xF3B9CAC2FC632551ull, 0xBCE6FAADA7179E84ull,
				0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFF00000000ull };
static u64 nist_p256_a[] = { 0xFFFFFFFFFFFFFFFCull, 0x00000000FFFFFFFFull,
				0x0000000000000000ull, 0xFFFFFFFF00000001ull };
static u64 nist_p256_b[] = { 0x3BCE3C3E27D2604Bull, 0x651D06B0CC53B0F6ull,
				0xB3EBBD55769886BCull, 0x5AC635D8AA3A93E7ull };
static struct ecc_curve nist_p256 = {
	.name = "nist_256",
	.g = {
		.x = nist_p256_g_x,
		.y = nist_p256_g_y,
		.ndigits = 4,
	},
	.p = nist_p256_p,
	.n = nist_p256_n,
	.a = nist_p256_a,
	.b = nist_p256_b
};

/* NIST P-384 */
static u64 nist_p384_g_x[] = { 0x3A545E3872760AB7ull, 0x5502F25DBF55296Cull,
				0x59F741E082542A38ull, 0x6E1D3B628BA79B98ull,
				0x8Eb1C71EF320AD74ull, 0xAA87CA22BE8B0537ull };
static u64 nist_p384_g_y[] = { 0x7A431D7C90EA0E5Full, 0x0A60B1CE1D7E819Dull,
				0xE9DA3113B5F0B8C0ull, 0xF8F41DBD289A147Cull,
				0x5D9E98BF9292DC29ull, 0x3617DE4A96262C6Full };
static u64 nist_p384_p[] = { 0x00000000FFFFFFFFull, 0xFFFFFFFF00000000ull,
				0xFFFFFFFFFFFFFFFEull, 0xFFFFFFFFFFFFFFFFull,
				0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull };
static u64 nist_p384_n[] = { 0xECEC196ACCC52973ull, 0x581A0DB248B0A77Aull,
				0xC7634D81F4372DDFull, 0xFFFFFFFFFFFFFFFFull,
				0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull };
static u64 nist_p384_a[] = { 0x00000000FFFFFFFCull, 0xFFFFFFFF00000000ull,
				0xFFFFFFFFFFFFFFFEull, 0xFFFFFFFFFFFFFFFFull,
				0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull };
static u64 nist_p384_b[] = { 0x2a85c8edd3ec2aefull, 0xc656398d8a2ed19dull,
				0x0314088f5013875aull, 0x181d9c6efe814112ull,
				0x988e056be3f82d19ull, 0xb3312fa7e23ee7e4ull };
static struct ecc_curve nist_p384 = {
	.name = "nist_384",
	.g = {
		.x = nist_p384_g_x,
		.y = nist_p384_g_y,
		.ndigits = 6,
	},
	.p = nist_p384_p,
	.n = nist_p384_n,
	.a = nist_p384_a,
	.b = nist_p384_b
};

/* curve25519 */
static u64 curve25519_g_x[] = { 0x0000000000000009, 0x0000000000000000,
				0x0000000000000000, 0x0000000000000000 };
static u64 curve25519_p[] = { 0xffffffffffffffed, 0xffffffffffffffff,
				0xffffffffffffffff, 0x7fffffffffffffff };
static u64 curve25519_a[] = { 0x000000000001DB41, 0x0000000000000000,
				0x0000000000000000, 0x0000000000000000 };
static const struct ecc_curve ecc_25519 = {
	.name = "curve25519",
	.g = {
		.x = curve25519_g_x,
		.ndigits = 4,
	},
	.p = curve25519_p,
	.a = curve25519_a,
};

#endif
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