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hw/net/cadence_gem: use FIELD to describe NWCFG register fields 

Use de FIELD macro to describe the NWCFG register fields.

Signed-off-by: Luc Michel <luc.michel@amd.com>
Reviewed-by: sai.pavan.boddu@amd.com
Message-id: 20231017194422.4124691-5-luc.michel@amd.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
master
Luc Michel 2023-10-17 21:44:15 +02:00 committed by Peter Maydell
parent bd8a922d2f
commit 87a49c3f80
1 changed files with 39 additions and 21 deletions
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60
hw/net/cadence_gem.c
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@ -79,6 +79,35 @@ REG32(NWCTRL, 0x0) /* Network Control reg */
FIELD(NWCTRL, IFG_EATS_QAV_CREDIT, 30, 1)
REG32(NWCFG, 0x4) /* Network Config reg */
FIELD(NWCFG, SPEED, 0, 1)
FIELD(NWCFG, FULL_DUPLEX, 1, 1)
FIELD(NWCFG, DISCARD_NON_VLAN_FRAMES, 2, 1)
FIELD(NWCFG, JUMBO_FRAMES, 3, 1)
FIELD(NWCFG, PROMISC, 4, 1)
FIELD(NWCFG, NO_BROADCAST, 5, 1)
FIELD(NWCFG, MULTICAST_HASH_EN, 6, 1)
FIELD(NWCFG, UNICAST_HASH_EN, 7, 1)
FIELD(NWCFG, RECV_1536_BYTE_FRAMES, 8, 1)
FIELD(NWCFG, EXTERNAL_ADDR_MATCH_EN, 9, 1)
FIELD(NWCFG, GIGABIT_MODE_ENABLE, 10, 1)
FIELD(NWCFG, PCS_SELECT, 11, 1)
FIELD(NWCFG, RETRY_TEST, 12, 1)
FIELD(NWCFG, PAUSE_ENABLE, 13, 1)
FIELD(NWCFG, RECV_BUF_OFFSET, 14, 2)
FIELD(NWCFG, LEN_ERR_DISCARD, 16, 1)
FIELD(NWCFG, FCS_REMOVE, 17, 1)
FIELD(NWCFG, MDC_CLOCK_DIV, 18, 3)
FIELD(NWCFG, DATA_BUS_WIDTH, 21, 2)
FIELD(NWCFG, DISABLE_COPY_PAUSE_FRAMES, 23, 1)
FIELD(NWCFG, RECV_CSUM_OFFLOAD_EN, 24, 1)
FIELD(NWCFG, EN_HALF_DUPLEX_RX, 25, 1)
FIELD(NWCFG, IGNORE_RX_FCS, 26, 1)
FIELD(NWCFG, SGMII_MODE_ENABLE, 27, 1)
FIELD(NWCFG, IPG_STRETCH_ENABLE, 28, 1)
FIELD(NWCFG, NSP_ACCEPT, 29, 1)
FIELD(NWCFG, IGNORE_IPG_RX_ER, 30, 1)
FIELD(NWCFG, UNI_DIRECTION_ENABLE, 31, 1)
REG32(NWSTATUS, 0x8) /* Network Status reg */
REG32(USERIO, 0xc) /* User IO reg */
REG32(DMACFG, 0x10) /* DMA Control reg */
@ -236,17 +265,6 @@ REG32(TYPE2_COMPARE_0_WORD_1, 0x704)
FIELD(TYPE2_COMPARE_0_WORD_1, COMPARE_VLAN_ID, 10, 1)
/*****************************************/
#define GEM_NWCFG_STRIP_FCS 0x00020000 /* Strip FCS field */
#define GEM_NWCFG_LERR_DISC 0x00010000 /* Discard RX frames with len err */
#define GEM_NWCFG_BUFF_OFST_M 0x0000C000 /* Receive buffer offset mask */
#define GEM_NWCFG_BUFF_OFST_S 14 /* Receive buffer offset shift */
#define GEM_NWCFG_RCV_1538 0x00000100 /* Receive 1538 bytes frame */
#define GEM_NWCFG_UCAST_HASH 0x00000080 /* accept unicast if hash match */
#define GEM_NWCFG_MCAST_HASH 0x00000040 /* accept multicast if hash match */
#define GEM_NWCFG_BCAST_REJ 0x00000020 /* Reject broadcast packets */
#define GEM_NWCFG_PROMISC 0x00000010 /* Accept all packets */
#define GEM_NWCFG_JUMBO_FRAME 0x00000008 /* Jumbo Frames enable */
#define GEM_DMACFG_ADDR_64B (1U << 30)
#define GEM_DMACFG_TX_BD_EXT (1U << 29)
#define GEM_DMACFG_RX_BD_EXT (1U << 28)
@ -482,7 +500,7 @@ static const uint8_t broadcast_addr[] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
static uint32_t gem_get_max_buf_len(CadenceGEMState *s, bool tx)
{
uint32_t size;
if (s->regs[R_NWCFG] & GEM_NWCFG_JUMBO_FRAME) {
if (FIELD_EX32(s->regs[R_NWCFG], NWCFG, JUMBO_FRAMES)) {
size = s->regs[R_JUMBO_MAX_LEN];
if (size > s->jumbo_max_len) {
size = s->jumbo_max_len;
@ -492,7 +510,8 @@ static uint32_t gem_get_max_buf_len(CadenceGEMState *s, bool tx)
} else if (tx) {
size = 1518;
} else {
size = s->regs[R_NWCFG] & GEM_NWCFG_RCV_1538 ? 1538 : 1518;
size = FIELD_EX32(s->regs[R_NWCFG],
NWCFG, RECV_1536_BYTE_FRAMES) ? 1538 : 1518;
}
return size;
}
@ -732,13 +751,13 @@ static int gem_mac_address_filter(CadenceGEMState *s, const uint8_t *packet)
int i, is_mc;
/* Promiscuous mode? */
if (s->regs[R_NWCFG] & GEM_NWCFG_PROMISC) {
if (FIELD_EX32(s->regs[R_NWCFG], NWCFG, PROMISC)) {
return GEM_RX_PROMISCUOUS_ACCEPT;
}
if (!memcmp(packet, broadcast_addr, 6)) {
/* Reject broadcast packets? */
if (s->regs[R_NWCFG] & GEM_NWCFG_BCAST_REJ) {
if (FIELD_EX32(s->regs[R_NWCFG], NWCFG, NO_BROADCAST)) {
return GEM_RX_REJECT;
}
return GEM_RX_BROADCAST_ACCEPT;
@ -746,8 +765,8 @@ static int gem_mac_address_filter(CadenceGEMState *s, const uint8_t *packet)
/* Accept packets -w- hash match? */
is_mc = is_multicast_ether_addr(packet);
if ((is_mc && (s->regs[R_NWCFG] & GEM_NWCFG_MCAST_HASH)) ||
(!is_mc && (s->regs[R_NWCFG] & GEM_NWCFG_UCAST_HASH))) {
if ((is_mc && (FIELD_EX32(s->regs[R_NWCFG], NWCFG, MULTICAST_HASH_EN))) ||
(!is_mc && FIELD_EX32(s->regs[R_NWCFG], NWCFG, UNICAST_HASH_EN))) {
uint64_t buckets;
unsigned hash_index;
@ -983,7 +1002,7 @@ static ssize_t gem_receive(NetClientState *nc, const uint8_t *buf, size_t size)
}
/* Discard packets with receive length error enabled ? */
if (s->regs[R_NWCFG] & GEM_NWCFG_LERR_DISC) {
if (FIELD_EX32(s->regs[R_NWCFG], NWCFG, LEN_ERR_DISCARD)) {
unsigned type_len;
/* Fish the ethertype / length field out of the RX packet */
@ -1000,8 +1019,7 @@ static ssize_t gem_receive(NetClientState *nc, const uint8_t *buf, size_t size)
/*
* Determine configured receive buffer offset (probably 0)
*/
rxbuf_offset = (s->regs[R_NWCFG] & GEM_NWCFG_BUFF_OFST_M) >>
GEM_NWCFG_BUFF_OFST_S;
rxbuf_offset = FIELD_EX32(s->regs[R_NWCFG], NWCFG, RECV_BUF_OFFSET);
/* The configure size of each receive buffer. Determines how many
* buffers needed to hold this packet.
@ -1026,7 +1044,7 @@ static ssize_t gem_receive(NetClientState *nc, const uint8_t *buf, size_t size)
}
/* Strip of FCS field ? (usually yes) */
if (s->regs[R_NWCFG] & GEM_NWCFG_STRIP_FCS) {
if (FIELD_EX32(s->regs[R_NWCFG], NWCFG, FCS_REMOVE)) {
rxbuf_ptr = (void *)buf;
} else {
unsigned crc_val;