* [Qemu-devel] [PATCH v5 00/10] Add Ethernet device for i.MX6 SOC
@ 2016-05-21 8:01 Jean-Christophe Dubois
2016-05-21 8:01 ` [Qemu-devel] [PATCH v5 01/10] net: improve UDP/TCP checksum computation Jean-Christophe Dubois
` (10 more replies)
0 siblings, 11 replies; 15+ messages in thread
From: Jean-Christophe Dubois @ 2016-05-21 8:01 UTC (permalink / raw)
To: qemu-devel, peter.maydell, jasowang; +Cc: Jean-Christophe Dubois
This patch series adds Gb ENET Ethernet device to the i.MX6 SOC.
The ENET device is an evolution of the FEC device present on the i.MX25 SOC
and is backward compatible with it.
Therefore the ENET support has been added to the actual Qemu FEC device (
rather than adding a new device).
The Patch has been tested by:
* Booting linux on i.MX25 PDK board emulation and accessing internet
* Booting linux on i.MX6 Sabrelite board emulation and accessing internet
Jean-Christophe Dubois (10):
net: improve UDP/TCP checksum computation.
net: handle optional VLAN header in checksum computation.
i.MX: Fix FEC code for MDIO operation selection
i.MX: Fix FEC code for MDIO address selection
i.MX: Fix FEC code for ECR register reset value.
i.MX: reset TX/RX descriptors when FEC is disabled.
i.MX: Rename i.MX FEC defines to ENET_XXX
i.MX: move FEC device to a register array structure.
Add ENET/Gbps Ethernet support to FEC device
Add ENET device to i.MX6 SOC.
hw/arm/fsl-imx25.c | 1 +
hw/arm/fsl-imx6.c | 17 +
hw/net/imx_fec.c | 1009 ++++++++++++++++++++++++++++++++++-----------
include/hw/arm/fsl-imx6.h | 6 +-
include/hw/net/imx_fec.h | 250 ++++++++---
net/checksum.c | 121 ++++--
6 files changed, 1077 insertions(+), 327 deletions(-)
--
2.7.4
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Qemu-devel] [PATCH v5 01/10] net: improve UDP/TCP checksum computation.
2016-05-21 8:01 [Qemu-devel] [PATCH v5 00/10] Add Ethernet device for i.MX6 SOC Jean-Christophe Dubois
@ 2016-05-21 8:01 ` Jean-Christophe Dubois
2016-05-21 8:01 ` [Qemu-devel] [PATCH v5 02/10] net: handle optional VLAN header in " Jean-Christophe Dubois
` (9 subsequent siblings)
10 siblings, 0 replies; 15+ messages in thread
From: Jean-Christophe Dubois @ 2016-05-21 8:01 UTC (permalink / raw)
To: qemu-devel, peter.maydell, jasowang; +Cc: Jean-Christophe Dubois
* based on Eth, UDP, TCP struct present in eth.h instead of hardcoded
indexes and sizes.
* based on various macros present in eth.h.
Signed-off-by: Jean-Christophe Dubois <jcd@tribudubois.net>
---
Changes since v1:
* None
Changes since v2:
* The patch was split in 2 parts:
- a rewrite of the TCP/UDB checksum function (this patch)
- the addition of the support of the VLAN header (next patch).
Changes since v3:
* None
Changes since v4:
* None
net/checksum.c | 94 +++++++++++++++++++++++++++++++++++++++++-----------------
1 file changed, 67 insertions(+), 27 deletions(-)
diff --git a/net/checksum.c b/net/checksum.c
index d0fa424..f62b18a 100644
--- a/net/checksum.c
+++ b/net/checksum.c
@@ -18,9 +18,7 @@
#include "qemu/osdep.h"
#include "qemu-common.h"
#include "net/checksum.h"
-
-#define PROTO_TCP 6
-#define PROTO_UDP 17
+#include "net/eth.h"
uint32_t net_checksum_add_cont(int len, uint8_t *buf, int seq)
{
@@ -57,40 +55,82 @@ uint16_t net_checksum_tcpudp(uint16_t length, uint16_t proto,
void net_checksum_calculate(uint8_t *data, int length)
{
- int hlen, plen, proto, csum_offset;
- uint16_t csum;
+ int ip_len;
+ struct ip_header *ip;
+
+ /*
+ * Note: We cannot assume "data" is aligned, so the all code uses
+ * some macros that take care of possible unaligned access for
+ * struct members (just in case).
+ */
/* Ensure data has complete L2 & L3 headers. */
- if (length < 14 + 20) {
+ if (length < (sizeof(struct eth_header) + sizeof(struct ip_header))) {
return;
}
- if ((data[14] & 0xf0) != 0x40)
- return; /* not IPv4 */
- hlen = (data[14] & 0x0f) * 4;
- plen = (data[16] << 8 | data[17]) - hlen;
- proto = data[23];
-
- switch (proto) {
- case PROTO_TCP:
- csum_offset = 16;
- break;
- case PROTO_UDP:
- csum_offset = 6;
- break;
- default:
- return;
+ ip = (struct ip_header *)(data + sizeof(struct eth_header));
+
+ if (IP_HEADER_VERSION(ip) != IP_HEADER_VERSION_4) {
+ return; /* not IPv4 */
}
- if (plen < csum_offset + 2 || 14 + hlen + plen > length) {
+ ip_len = lduw_be_p(&ip->ip_len);
+
+ /* Last, check that we have enough data for the all IP frame */
+ if (length < ip_len) {
return;
}
- data[14+hlen+csum_offset] = 0;
- data[14+hlen+csum_offset+1] = 0;
- csum = net_checksum_tcpudp(plen, proto, data+14+12, data+14+hlen);
- data[14+hlen+csum_offset] = csum >> 8;
- data[14+hlen+csum_offset+1] = csum & 0xff;
+ ip_len -= IP_HDR_GET_LEN(ip);
+
+ switch (ip->ip_p) {
+ case IP_PROTO_TCP:
+ {
+ uint16_t csum;
+ tcp_header *tcp = (tcp_header *)(ip + 1);
+
+ if (ip_len < sizeof(tcp_header)) {
+ return;
+ }
+
+ /* Set csum to 0 */
+ stw_he_p(&tcp->th_sum, 0);
+
+ csum = net_checksum_tcpudp(ip_len, ip->ip_p,
+ (uint8_t *)&ip->ip_src,
+ (uint8_t *)tcp);
+
+ /* Store computed csum */
+ stw_be_p(&tcp->th_sum, csum);
+
+ break;
+ }
+ case IP_PROTO_UDP:
+ {
+ uint16_t csum;
+ udp_header *udp = (udp_header *)(ip + 1);
+
+ if (ip_len < sizeof(udp_header)) {
+ return;
+ }
+
+ /* Set csum to 0 */
+ stw_he_p(&udp->uh_sum, 0);
+
+ csum = net_checksum_tcpudp(ip_len, ip->ip_p,
+ (uint8_t *)&ip->ip_src,
+ (uint8_t *)udp);
+
+ /* Store computed csum */
+ stw_be_p(&udp->uh_sum, csum);
+
+ break;
+ }
+ default:
+ /* Can't handle any other protocol */
+ break;
+ }
}
uint32_t
--
2.7.4
^ permalink raw reply related [flat|nested] 15+ messages in thread
* [Qemu-devel] [PATCH v5 02/10] net: handle optional VLAN header in checksum computation.
2016-05-21 8:01 [Qemu-devel] [PATCH v5 00/10] Add Ethernet device for i.MX6 SOC Jean-Christophe Dubois
2016-05-21 8:01 ` [Qemu-devel] [PATCH v5 01/10] net: improve UDP/TCP checksum computation Jean-Christophe Dubois
@ 2016-05-21 8:01 ` Jean-Christophe Dubois
2016-05-21 8:01 ` [Qemu-devel] [PATCH v5 03/10] i.MX: Fix FEC code for MDIO operation selection Jean-Christophe Dubois
` (8 subsequent siblings)
10 siblings, 0 replies; 15+ messages in thread
From: Jean-Christophe Dubois @ 2016-05-21 8:01 UTC (permalink / raw)
To: qemu-devel, peter.maydell, jasowang; +Cc: Jean-Christophe Dubois
Signed-off-by: Jean-Christophe Dubois <jcd@tribudubois.net>
---
Changes since v1:
* Not present on v1
Changes since v2:
* Not present on v2
Changes since v3:
* local variable name change.
Changes since v4:
* None
net/checksum.c | 35 +++++++++++++++++++++++++++++++----
1 file changed, 31 insertions(+), 4 deletions(-)
diff --git a/net/checksum.c b/net/checksum.c
index f62b18a..62d3465 100644
--- a/net/checksum.c
+++ b/net/checksum.c
@@ -55,7 +55,7 @@ uint16_t net_checksum_tcpudp(uint16_t length, uint16_t proto,
void net_checksum_calculate(uint8_t *data, int length)
{
- int ip_len;
+ int mac_hdr_len, ip_len;
struct ip_header *ip;
/*
@@ -64,12 +64,39 @@ void net_checksum_calculate(uint8_t *data, int length)
* struct members (just in case).
*/
- /* Ensure data has complete L2 & L3 headers. */
- if (length < (sizeof(struct eth_header) + sizeof(struct ip_header))) {
+ /* Ensure we have at least an Eth header */
+ if (length < sizeof(struct eth_header)) {
return;
}
- ip = (struct ip_header *)(data + sizeof(struct eth_header));
+ /* Handle the optionnal VLAN headers */
+ switch (lduw_be_p(&PKT_GET_ETH_HDR(data)->h_proto)) {
+ case ETH_P_VLAN:
+ mac_hdr_len = sizeof(struct eth_header) +
+ sizeof(struct vlan_header);
+ break;
+ case ETH_P_DVLAN:
+ if (lduw_be_p(&PKT_GET_VLAN_HDR(data)->h_proto) == ETH_P_VLAN) {
+ mac_hdr_len = sizeof(struct eth_header) +
+ 2 * sizeof(struct vlan_header);
+ } else {
+ mac_hdr_len = sizeof(struct eth_header) +
+ sizeof(struct vlan_header);
+ }
+ break;
+ default:
+ mac_hdr_len = sizeof(struct eth_header);
+ break;
+ }
+
+ length -= mac_hdr_len;
+
+ /* Now check we have an IP header (with an optionnal VLAN header) */
+ if (length < sizeof(struct ip_header)) {
+ return;
+ }
+
+ ip = (struct ip_header *)(data + mac_hdr_len);
if (IP_HEADER_VERSION(ip) != IP_HEADER_VERSION_4) {
return; /* not IPv4 */
--
2.7.4
^ permalink raw reply related [flat|nested] 15+ messages in thread
* [Qemu-devel] [PATCH v5 03/10] i.MX: Fix FEC code for MDIO operation selection
2016-05-21 8:01 [Qemu-devel] [PATCH v5 00/10] Add Ethernet device for i.MX6 SOC Jean-Christophe Dubois
2016-05-21 8:01 ` [Qemu-devel] [PATCH v5 01/10] net: improve UDP/TCP checksum computation Jean-Christophe Dubois
2016-05-21 8:01 ` [Qemu-devel] [PATCH v5 02/10] net: handle optional VLAN header in " Jean-Christophe Dubois
@ 2016-05-21 8:01 ` Jean-Christophe Dubois
2016-05-21 8:01 ` [Qemu-devel] [PATCH v5 04/10] i.MX: Fix FEC code for MDIO address selection Jean-Christophe Dubois
` (7 subsequent siblings)
10 siblings, 0 replies; 15+ messages in thread
From: Jean-Christophe Dubois @ 2016-05-21 8:01 UTC (permalink / raw)
To: qemu-devel, peter.maydell, jasowang; +Cc: Jean-Christophe Dubois
According to the FEC chapter of i.MX25 reference manual
When writing the MMFR register, bit 29 and 28 select the requested operation.
* 10 means read operation with valid MII mgmt frame
* 11 means read operation with non compliant MII mgmt frame
* 01 means write operation with valid MII mgmt frame
* 00 means write operation with non compliant MII mgmt frame
So while bit 28 does change beween read/write for valid MII mgmt frame, the
mening is inverted for non compliant MII mgmt frame.
Bit 29 on the other hand means read/write whatever the type of mgmt frame
involved.
So this patch change the operation selection from bit 28 to bit 29 as it is
more generic.
Signed-off-by: Jean-Christophe Dubois <jcd@tribudubois.net>
---
Changes since v1:
* Not present on v1
Changes since v2:
* Not present on v2
Changes since v3:
* Not present on v3
Changes since v4:
* None
hw/net/imx_fec.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/hw/net/imx_fec.c b/hw/net/imx_fec.c
index e60e338..b3f5e4a 100644
--- a/hw/net/imx_fec.c
+++ b/hw/net/imx_fec.c
@@ -458,10 +458,10 @@ static void imx_fec_write(void *opaque, hwaddr addr,
case 0x040: /* MMFR */
/* store the value */
s->mmfr = value;
- if (extract32(value, 28, 1)) {
- do_phy_write(s, extract32(value, 18, 9), extract32(value, 0, 16));
- } else {
+ if (extract32(value, 29, 1)) {
s->mmfr = do_phy_read(s, extract32(value, 18, 9));
+ } else {
+ do_phy_write(s, extract32(value, 18, 9), extract32(value, 0, 16));
}
/* raise the interrupt as the PHY operation is done */
s->eir |= FEC_INT_MII;
--
2.7.4
^ permalink raw reply related [flat|nested] 15+ messages in thread
* [Qemu-devel] [PATCH v5 04/10] i.MX: Fix FEC code for MDIO address selection
2016-05-21 8:01 [Qemu-devel] [PATCH v5 00/10] Add Ethernet device for i.MX6 SOC Jean-Christophe Dubois
` (2 preceding siblings ...)
2016-05-21 8:01 ` [Qemu-devel] [PATCH v5 03/10] i.MX: Fix FEC code for MDIO operation selection Jean-Christophe Dubois
@ 2016-05-21 8:01 ` Jean-Christophe Dubois
2016-05-21 8:01 ` [Qemu-devel] [PATCH v5 05/10] i.MX: Fix FEC code for ECR register reset value Jean-Christophe Dubois
` (6 subsequent siblings)
10 siblings, 0 replies; 15+ messages in thread
From: Jean-Christophe Dubois @ 2016-05-21 8:01 UTC (permalink / raw)
To: qemu-devel, peter.maydell, jasowang; +Cc: Jean-Christophe Dubois
According to the FEC chapter of i.MX25 reference manual
When writing to MMFR register, the MDIO device and adress are selected by
bit 27 to 23 and bit 22 to 18 respectively. This is a total of 10 bits
that need to be used by the Phy chip/address decoding function.
This patch fixes the number of bits used from 9 to 10.
Signed-off-by: Jean-Christophe Dubois <jcd@tribudubois.net>
---
Changes since v1:
* Not present on v1
Changes since v2:
* Not present on v2
Changes since v3:
* Not present on v3
Changes since v4:
* None
hw/net/imx_fec.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/hw/net/imx_fec.c b/hw/net/imx_fec.c
index b3f5e4a..a649027 100644
--- a/hw/net/imx_fec.c
+++ b/hw/net/imx_fec.c
@@ -459,9 +459,9 @@ static void imx_fec_write(void *opaque, hwaddr addr,
/* store the value */
s->mmfr = value;
if (extract32(value, 29, 1)) {
- s->mmfr = do_phy_read(s, extract32(value, 18, 9));
+ s->mmfr = do_phy_read(s, extract32(value, 18, 10));
} else {
- do_phy_write(s, extract32(value, 18, 9), extract32(value, 0, 16));
+ do_phy_write(s, extract32(value, 18, 10), extract32(value, 0, 16));
}
/* raise the interrupt as the PHY operation is done */
s->eir |= FEC_INT_MII;
--
2.7.4
^ permalink raw reply related [flat|nested] 15+ messages in thread
* [Qemu-devel] [PATCH v5 05/10] i.MX: Fix FEC code for ECR register reset value.
2016-05-21 8:01 [Qemu-devel] [PATCH v5 00/10] Add Ethernet device for i.MX6 SOC Jean-Christophe Dubois
` (3 preceding siblings ...)
2016-05-21 8:01 ` [Qemu-devel] [PATCH v5 04/10] i.MX: Fix FEC code for MDIO address selection Jean-Christophe Dubois
@ 2016-05-21 8:01 ` Jean-Christophe Dubois
2016-05-21 8:01 ` [Qemu-devel] [PATCH v5 06/10] i.MX: reset TX/RX descriptors when FEC is disabled Jean-Christophe Dubois
` (5 subsequent siblings)
10 siblings, 0 replies; 15+ messages in thread
From: Jean-Christophe Dubois @ 2016-05-21 8:01 UTC (permalink / raw)
To: qemu-devel, peter.maydell, jasowang; +Cc: Jean-Christophe Dubois
According to the FEC chapter of i.MX25 reference manual ECR register is
initialized at 0xf0000000 at reset time.
We fix the value.
Signed-off-by: Jean-Christophe Dubois <jcd@tribudubois.net>
---
Changes since v1:
* Not present on v1
Changes since v2:
* Not present on v2
Changes since v3:
* Not present on v3
Changes since v4:
* None
hw/net/imx_fec.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/hw/net/imx_fec.c b/hw/net/imx_fec.c
index a649027..87e3c87 100644
--- a/hw/net/imx_fec.c
+++ b/hw/net/imx_fec.c
@@ -338,7 +338,7 @@ static void imx_fec_reset(DeviceState *d)
s->eir = 0;
s->eimr = 0;
s->rx_enabled = 0;
- s->ecr = 0;
+ s->ecr = 0xf0000000;
s->mscr = 0;
s->mibc = 0xc0000000;
s->rcr = 0x05ee0001;
--
2.7.4
^ permalink raw reply related [flat|nested] 15+ messages in thread
* [Qemu-devel] [PATCH v5 06/10] i.MX: reset TX/RX descriptors when FEC is disabled.
2016-05-21 8:01 [Qemu-devel] [PATCH v5 00/10] Add Ethernet device for i.MX6 SOC Jean-Christophe Dubois
` (4 preceding siblings ...)
2016-05-21 8:01 ` [Qemu-devel] [PATCH v5 05/10] i.MX: Fix FEC code for ECR register reset value Jean-Christophe Dubois
@ 2016-05-21 8:01 ` Jean-Christophe Dubois
2016-05-21 8:01 ` [Qemu-devel] [PATCH v5 07/10] i.MX: Rename i.MX FEC defines to ENET_XXX Jean-Christophe Dubois
` (4 subsequent siblings)
10 siblings, 0 replies; 15+ messages in thread
From: Jean-Christophe Dubois @ 2016-05-21 8:01 UTC (permalink / raw)
To: qemu-devel, peter.maydell, jasowang; +Cc: Jean-Christophe Dubois
According to the FEC chapter of i.MX25 reference manual
RX adn TX descriptors are reseted when the FEC device is disabled through ECR.
Signed-off-by: Jean-Christophe Dubois <jcd@tribudubois.net>
---
Changes since v1:
* Not present on v1
Changes since v2:
* Not present on v2
Changes since v3:
* Not present on v3
Changes since v4:
* Not present on v4
hw/net/imx_fec.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/hw/net/imx_fec.c b/hw/net/imx_fec.c
index 87e3c87..63fe20f 100644
--- a/hw/net/imx_fec.c
+++ b/hw/net/imx_fec.c
@@ -453,6 +453,8 @@ static void imx_fec_write(void *opaque, hwaddr addr,
}
if ((s->ecr & FEC_EN) == 0) {
s->rx_enabled = 0;
+ s->rx_descriptor = s->erdsr;
+ s->tx_descriptor = s->etdsr;
}
break;
case 0x040: /* MMFR */
--
2.7.4
^ permalink raw reply related [flat|nested] 15+ messages in thread
* [Qemu-devel] [PATCH v5 07/10] i.MX: Rename i.MX FEC defines to ENET_XXX
2016-05-21 8:01 [Qemu-devel] [PATCH v5 00/10] Add Ethernet device for i.MX6 SOC Jean-Christophe Dubois
` (5 preceding siblings ...)
2016-05-21 8:01 ` [Qemu-devel] [PATCH v5 06/10] i.MX: reset TX/RX descriptors when FEC is disabled Jean-Christophe Dubois
@ 2016-05-21 8:01 ` Jean-Christophe Dubois
2016-05-21 8:01 ` [Qemu-devel] [PATCH v5 08/10] i.MX: move FEC device to a register array structure Jean-Christophe Dubois
` (3 subsequent siblings)
10 siblings, 0 replies; 15+ messages in thread
From: Jean-Christophe Dubois @ 2016-05-21 8:01 UTC (permalink / raw)
To: qemu-devel, peter.maydell, jasowang; +Cc: Jean-Christophe Dubois
Signed-off-by: Jean-Christophe Dubois <jcd@tribudubois.net>
---
Changes since v1:
* Not present on v1
Changes since v2:
* Not present on v2
Changes since v3:
* Not present on v3
Changes since v4:
* Not present on v4
hw/net/imx_fec.c | 54 ++++++++++++++++++++--------------------
include/hw/net/imx_fec.h | 64 ++++++++++++++++++++++++------------------------
2 files changed, 59 insertions(+), 59 deletions(-)
diff --git a/hw/net/imx_fec.c b/hw/net/imx_fec.c
index 63fe20f..69d8860 100644
--- a/hw/net/imx_fec.c
+++ b/hw/net/imx_fec.c
@@ -265,7 +265,7 @@ static void imx_fec_update(IMXFECState *s)
static void imx_fec_do_tx(IMXFECState *s)
{
int frame_size = 0;
- uint8_t frame[FEC_MAX_FRAME_SIZE];
+ uint8_t frame[ENET_MAX_FRAME_SIZE];
uint8_t *ptr = frame;
uint32_t addr = s->tx_descriptor;
@@ -276,31 +276,31 @@ static void imx_fec_do_tx(IMXFECState *s)
imx_fec_read_bd(&bd, addr);
FEC_PRINTF("tx_bd %x flags %04x len %d data %08x\n",
addr, bd.flags, bd.length, bd.data);
- if ((bd.flags & FEC_BD_R) == 0) {
+ if ((bd.flags & ENET_BD_R) == 0) {
/* Run out of descriptors to transmit. */
break;
}
len = bd.length;
- if (frame_size + len > FEC_MAX_FRAME_SIZE) {
- len = FEC_MAX_FRAME_SIZE - frame_size;
- s->eir |= FEC_INT_BABT;
+ if (frame_size + len > ENET_MAX_FRAME_SIZE) {
+ len = ENET_MAX_FRAME_SIZE - frame_size;
+ s->eir |= ENET_INT_BABT;
}
dma_memory_read(&address_space_memory, bd.data, ptr, len);
ptr += len;
frame_size += len;
- if (bd.flags & FEC_BD_L) {
+ if (bd.flags & ENET_BD_L) {
/* Last buffer in frame. */
qemu_send_packet(qemu_get_queue(s->nic), frame, len);
ptr = frame;
frame_size = 0;
- s->eir |= FEC_INT_TXF;
+ s->eir |= ENET_INT_TXF;
}
- s->eir |= FEC_INT_TXB;
- bd.flags &= ~FEC_BD_R;
+ s->eir |= ENET_INT_TXB;
+ bd.flags &= ~ENET_BD_R;
/* Write back the modified descriptor. */
imx_fec_write_bd(&bd, addr);
/* Advance to the next descriptor. */
- if ((bd.flags & FEC_BD_W) != 0) {
+ if ((bd.flags & ENET_BD_W) != 0) {
addr = s->etdsr;
} else {
addr += 8;
@@ -319,7 +319,7 @@ static void imx_fec_enable_rx(IMXFECState *s)
imx_fec_read_bd(&bd, s->rx_descriptor);
- tmp = ((bd.flags & FEC_BD_E) != 0);
+ tmp = ((bd.flags & ENET_BD_E) != 0);
if (!tmp) {
FEC_PRINTF("RX buffer full\n");
@@ -437,21 +437,21 @@ static void imx_fec_write(void *opaque, hwaddr addr,
s->eimr = value;
break;
case 0x010: /* RDAR */
- if ((s->ecr & FEC_EN) && !s->rx_enabled) {
+ if ((s->ecr & ENET_ECR_ETHEREN) && !s->rx_enabled) {
imx_fec_enable_rx(s);
}
break;
case 0x014: /* TDAR */
- if (s->ecr & FEC_EN) {
+ if (s->ecr & ENET_ECR_ETHEREN) {
imx_fec_do_tx(s);
}
break;
case 0x024: /* ECR */
s->ecr = value;
- if (value & FEC_RESET) {
+ if (value & ENET_ECR_RESET) {
imx_fec_reset(DEVICE(s));
}
- if ((s->ecr & FEC_EN) == 0) {
+ if ((s->ecr & ENET_ECR_ETHEREN) == 0) {
s->rx_enabled = 0;
s->rx_descriptor = s->erdsr;
s->tx_descriptor = s->etdsr;
@@ -466,7 +466,7 @@ static void imx_fec_write(void *opaque, hwaddr addr,
do_phy_write(s, extract32(value, 18, 10), extract32(value, 0, 16));
}
/* raise the interrupt as the PHY operation is done */
- s->eir |= FEC_INT_MII;
+ s->eir |= ENET_INT_MII;
break;
case 0x044: /* MSCR */
s->mscr = value & 0xfe;
@@ -483,7 +483,7 @@ static void imx_fec_write(void *opaque, hwaddr addr,
/* We transmit immediately, so raise GRA immediately. */
s->tcr = value;
if (value & 1) {
- s->eir |= FEC_INT_GRA;
+ s->eir |= ENET_INT_GRA;
}
break;
case 0x0e4: /* PALR */
@@ -573,20 +573,20 @@ static ssize_t imx_fec_receive(NetClientState *nc, const uint8_t *buf,
crc_ptr = (uint8_t *) &crc;
/* Huge frames are truncted. */
- if (size > FEC_MAX_FRAME_SIZE) {
- size = FEC_MAX_FRAME_SIZE;
- flags |= FEC_BD_TR | FEC_BD_LG;
+ if (size > ENET_MAX_FRAME_SIZE) {
+ size = ENET_MAX_FRAME_SIZE;
+ flags |= ENET_BD_TR | ENET_BD_LG;
}
/* Frames larger than the user limit just set error flags. */
if (size > (s->rcr >> 16)) {
- flags |= FEC_BD_LG;
+ flags |= ENET_BD_LG;
}
addr = s->rx_descriptor;
while (size > 0) {
imx_fec_read_bd(&bd, addr);
- if ((bd.flags & FEC_BD_E) == 0) {
+ if ((bd.flags & ENET_BD_E) == 0) {
/* No descriptors available. Bail out. */
/*
* FIXME: This is wrong. We should probably either
@@ -615,18 +615,18 @@ static ssize_t imx_fec_receive(NetClientState *nc, const uint8_t *buf,
crc_ptr, 4 - size);
crc_ptr += 4 - size;
}
- bd.flags &= ~FEC_BD_E;
+ bd.flags &= ~ENET_BD_E;
if (size == 0) {
/* Last buffer in frame. */
- bd.flags |= flags | FEC_BD_L;
+ bd.flags |= flags | ENET_BD_L;
FEC_PRINTF("rx frame flags %04x\n", bd.flags);
- s->eir |= FEC_INT_RXF;
+ s->eir |= ENET_INT_RXF;
} else {
- s->eir |= FEC_INT_RXB;
+ s->eir |= ENET_INT_RXB;
}
imx_fec_write_bd(&bd, addr);
/* Advance to the next descriptor. */
- if ((bd.flags & FEC_BD_W) != 0) {
+ if ((bd.flags & ENET_BD_W) != 0) {
addr = s->erdsr;
} else {
addr += 8;
diff --git a/include/hw/net/imx_fec.h b/include/hw/net/imx_fec.h
index cbf8650..e5e2f11 100644
--- a/include/hw/net/imx_fec.h
+++ b/include/hw/net/imx_fec.h
@@ -30,24 +30,24 @@
#include "hw/sysbus.h"
#include "net/net.h"
-#define FEC_MAX_FRAME_SIZE 2032
+#define ENET_MAX_FRAME_SIZE 2032
-#define FEC_INT_HB (1 << 31)
-#define FEC_INT_BABR (1 << 30)
-#define FEC_INT_BABT (1 << 29)
-#define FEC_INT_GRA (1 << 28)
-#define FEC_INT_TXF (1 << 27)
-#define FEC_INT_TXB (1 << 26)
-#define FEC_INT_RXF (1 << 25)
-#define FEC_INT_RXB (1 << 24)
-#define FEC_INT_MII (1 << 23)
-#define FEC_INT_EBERR (1 << 22)
-#define FEC_INT_LC (1 << 21)
-#define FEC_INT_RL (1 << 20)
-#define FEC_INT_UN (1 << 19)
+#define ENET_INT_HB (1 << 31)
+#define ENET_INT_BABR (1 << 30)
+#define ENET_INT_BABT (1 << 29)
+#define ENET_INT_GRA (1 << 28)
+#define ENET_INT_TXF (1 << 27)
+#define ENET_INT_TXB (1 << 26)
+#define ENET_INT_RXF (1 << 25)
+#define ENET_INT_RXB (1 << 24)
+#define ENET_INT_MII (1 << 23)
+#define ENET_INT_EBERR (1 << 22)
+#define ENET_INT_LC (1 << 21)
+#define ENET_INT_RL (1 << 20)
+#define ENET_INT_UN (1 << 19)
-#define FEC_EN 2
-#define FEC_RESET 1
+#define ENET_ECR_RESET (1 << 0)
+#define ENET_ECR_ETHEREN (1 << 1)
/* Buffer Descriptor. */
typedef struct {
@@ -56,22 +56,22 @@ typedef struct {
uint32_t data;
} IMXFECBufDesc;
-#define FEC_BD_R (1 << 15)
-#define FEC_BD_E (1 << 15)
-#define FEC_BD_O1 (1 << 14)
-#define FEC_BD_W (1 << 13)
-#define FEC_BD_O2 (1 << 12)
-#define FEC_BD_L (1 << 11)
-#define FEC_BD_TC (1 << 10)
-#define FEC_BD_ABC (1 << 9)
-#define FEC_BD_M (1 << 8)
-#define FEC_BD_BC (1 << 7)
-#define FEC_BD_MC (1 << 6)
-#define FEC_BD_LG (1 << 5)
-#define FEC_BD_NO (1 << 4)
-#define FEC_BD_CR (1 << 2)
-#define FEC_BD_OV (1 << 1)
-#define FEC_BD_TR (1 << 0)
+#define ENET_BD_R (1 << 15)
+#define ENET_BD_E (1 << 15)
+#define ENET_BD_O1 (1 << 14)
+#define ENET_BD_W (1 << 13)
+#define ENET_BD_O2 (1 << 12)
+#define ENET_BD_L (1 << 11)
+#define ENET_BD_TC (1 << 10)
+#define ENET_BD_ABC (1 << 9)
+#define ENET_BD_M (1 << 8)
+#define ENET_BD_BC (1 << 7)
+#define ENET_BD_MC (1 << 6)
+#define ENET_BD_LG (1 << 5)
+#define ENET_BD_NO (1 << 4)
+#define ENET_BD_CR (1 << 2)
+#define ENET_BD_OV (1 << 1)
+#define ENET_BD_TR (1 << 0)
typedef struct IMXFECState {
/*< private >*/
--
2.7.4
^ permalink raw reply related [flat|nested] 15+ messages in thread
* [Qemu-devel] [PATCH v5 08/10] i.MX: move FEC device to a register array structure.
2016-05-21 8:01 [Qemu-devel] [PATCH v5 00/10] Add Ethernet device for i.MX6 SOC Jean-Christophe Dubois
` (6 preceding siblings ...)
2016-05-21 8:01 ` [Qemu-devel] [PATCH v5 07/10] i.MX: Rename i.MX FEC defines to ENET_XXX Jean-Christophe Dubois
@ 2016-05-21 8:01 ` Jean-Christophe Dubois
2016-05-21 8:01 ` [Qemu-devel] [PATCH v5 09/10] Add ENET/Gbps Ethernet support to FEC device Jean-Christophe Dubois
` (2 subsequent siblings)
10 siblings, 0 replies; 15+ messages in thread
From: Jean-Christophe Dubois @ 2016-05-21 8:01 UTC (permalink / raw)
To: qemu-devel, peter.maydell, jasowang; +Cc: Jean-Christophe Dubois
This is to prepare for the ENET Gb device of the i.MX6.
Signed-off-by: Jean-Christophe Dubois <jcd@tribudubois.net>
---
Changes since v1:
* Not present on v1.
Changes since v2:
* The patch was split in 2 parts:
- a "port" to a reg array based device (this patch).
- the addition of the Gb support (next patch).
Changes since v3:
* Small fix patches were extracted from this patch (see previous 3 patches)
* Reset logic through ECR was fixed.
* TDAR/RDAR behavior was fixed.
Changes since v4:
* #define renaming was extracted from this patch (see previous patch)
* Small fix patch was extracted from this patch (see previous patch on RX/TX
descriptor)
hw/net/imx_fec.c | 398 ++++++++++++++++++++++++++---------------------
include/hw/net/imx_fec.h | 51 ++++--
2 files changed, 256 insertions(+), 193 deletions(-)
diff --git a/hw/net/imx_fec.c b/hw/net/imx_fec.c
index 69d8860..0d0d557 100644
--- a/hw/net/imx_fec.c
+++ b/hw/net/imx_fec.c
@@ -52,30 +52,75 @@
} \
} while (0)
+static const char *imx_fec_reg_name(IMXFECState *s, uint32_t index)
+{
+ static char tmp[20];
+
+ switch (index) {
+ case ENET_EIR:
+ return "EIR";
+ case ENET_EIMR:
+ return "EIMR";
+ case ENET_RDAR:
+ return "RDAR";
+ case ENET_TDAR:
+ return "TDAR";
+ case ENET_ECR:
+ return "ECR";
+ case ENET_MMFR:
+ return "MMFR";
+ case ENET_MSCR:
+ return "MSCR";
+ case ENET_MIBC:
+ return "MIBC";
+ case ENET_RCR:
+ return "RCR";
+ case ENET_TCR:
+ return "TCR";
+ case ENET_PALR:
+ return "PALR";
+ case ENET_PAUR:
+ return "PAUR";
+ case ENET_OPD:
+ return "OPD";
+ case ENET_IAUR:
+ return "IAUR";
+ case ENET_IALR:
+ return "IALR";
+ case ENET_GAUR:
+ return "GAUR";
+ case ENET_GALR:
+ return "GALR";
+ case ENET_TFWR:
+ return "TFWR";
+ case ENET_RDSR:
+ return "RDSR";
+ case ENET_TDSR:
+ return "TDSR";
+ case ENET_MRBR:
+ return "MRBR";
+ case ENET_FRBR:
+ return "FRBR";
+ case ENET_FRSR:
+ return "FRSR";
+ case ENET_MIIGSK_CFGR:
+ return "MIIGSK_CFGR";
+ case ENET_MIIGSK_ENR:
+ return "MIIGSK_ENR";
+ default:
+ sprintf(tmp, "index %d", index);
+ return tmp;
+ }
+}
+
static const VMStateDescription vmstate_imx_fec = {
.name = TYPE_IMX_FEC,
- .version_id = 1,
- .minimum_version_id = 1,
+ .version_id = 2,
+ .minimum_version_id = 2,
.fields = (VMStateField[]) {
- VMSTATE_UINT32(irq_state, IMXFECState),
- VMSTATE_UINT32(eir, IMXFECState),
- VMSTATE_UINT32(eimr, IMXFECState),
- VMSTATE_UINT32(rx_enabled, IMXFECState),
+ VMSTATE_UINT32_ARRAY(regs, IMXFECState, ENET_MAX),
VMSTATE_UINT32(rx_descriptor, IMXFECState),
VMSTATE_UINT32(tx_descriptor, IMXFECState),
- VMSTATE_UINT32(ecr, IMXFECState),
- VMSTATE_UINT32(mmfr, IMXFECState),
- VMSTATE_UINT32(mscr, IMXFECState),
- VMSTATE_UINT32(mibc, IMXFECState),
- VMSTATE_UINT32(rcr, IMXFECState),
- VMSTATE_UINT32(tcr, IMXFECState),
- VMSTATE_UINT32(tfwr, IMXFECState),
- VMSTATE_UINT32(frsr, IMXFECState),
- VMSTATE_UINT32(erdsr, IMXFECState),
- VMSTATE_UINT32(etdsr, IMXFECState),
- VMSTATE_UINT32(emrbr, IMXFECState),
- VMSTATE_UINT32(miigsk_cfgr, IMXFECState),
- VMSTATE_UINT32(miigsk_enr, IMXFECState),
VMSTATE_UINT32(phy_status, IMXFECState),
VMSTATE_UINT32(phy_control, IMXFECState),
@@ -251,15 +296,13 @@ static void imx_fec_write_bd(IMXFECBufDesc *bd, dma_addr_t addr)
static void imx_fec_update(IMXFECState *s)
{
- uint32_t active;
- uint32_t changed;
-
- active = s->eir & s->eimr;
- changed = active ^ s->irq_state;
- if (changed) {
- qemu_set_irq(s->irq, active);
+ if (s->regs[ENET_EIR] & s->regs[ENET_EIMR]) {
+ FEC_PRINTF("interrupt raised\n");
+ qemu_set_irq(s->irq, 1);
+ } else {
+ FEC_PRINTF("interrupt lowered\n");
+ qemu_set_irq(s->irq, 0);
}
- s->irq_state = active;
}
static void imx_fec_do_tx(IMXFECState *s)
@@ -283,7 +326,7 @@ static void imx_fec_do_tx(IMXFECState *s)
len = bd.length;
if (frame_size + len > ENET_MAX_FRAME_SIZE) {
len = ENET_MAX_FRAME_SIZE - frame_size;
- s->eir |= ENET_INT_BABT;
+ s->regs[ENET_EIR] |= ENET_INT_BABT;
}
dma_memory_read(&address_space_memory, bd.data, ptr, len);
ptr += len;
@@ -293,17 +336,17 @@ static void imx_fec_do_tx(IMXFECState *s)
qemu_send_packet(qemu_get_queue(s->nic), frame, len);
ptr = frame;
frame_size = 0;
- s->eir |= ENET_INT_TXF;
+ s->regs[ENET_EIR] |= ENET_INT_TXF;
}
- s->eir |= ENET_INT_TXB;
+ s->regs[ENET_EIR] |= ENET_INT_TXB;
bd.flags &= ~ENET_BD_R;
/* Write back the modified descriptor. */
imx_fec_write_bd(&bd, addr);
/* Advance to the next descriptor. */
if ((bd.flags & ENET_BD_W) != 0) {
- addr = s->etdsr;
+ addr = s->regs[ENET_TDSR];
} else {
- addr += 8;
+ addr += sizeof(bd);
}
}
@@ -315,7 +358,7 @@ static void imx_fec_do_tx(IMXFECState *s)
static void imx_fec_enable_rx(IMXFECState *s)
{
IMXFECBufDesc bd;
- uint32_t tmp;
+ bool tmp;
imx_fec_read_bd(&bd, s->rx_descriptor);
@@ -323,11 +366,11 @@ static void imx_fec_enable_rx(IMXFECState *s)
if (!tmp) {
FEC_PRINTF("RX buffer full\n");
- } else if (!s->rx_enabled) {
+ } else if (!s->regs[ENET_RDAR]) {
qemu_flush_queued_packets(qemu_get_queue(s->nic));
}
- s->rx_enabled = tmp;
+ s->regs[ENET_RDAR] = tmp ? ENET_RDAR_RDAR : 0;
}
static void imx_fec_reset(DeviceState *d)
@@ -335,18 +378,26 @@ static void imx_fec_reset(DeviceState *d)
IMXFECState *s = IMX_FEC(d);
/* Reset the FEC */
- s->eir = 0;
- s->eimr = 0;
- s->rx_enabled = 0;
- s->ecr = 0xf0000000;
- s->mscr = 0;
- s->mibc = 0xc0000000;
- s->rcr = 0x05ee0001;
- s->tcr = 0;
- s->tfwr = 0;
- s->frsr = 0x500;
- s->miigsk_cfgr = 0;
- s->miigsk_enr = 0x6;
+ memset(s->regs, 0, sizeof(s->regs));
+ s->regs[ENET_ECR] = 0xf0000000;
+ s->regs[ENET_MIBC] = 0xc0000000;
+ s->regs[ENET_RCR] = 0x05ee0001;
+ s->regs[ENET_OPD] = 0x00010000;
+
+ s->regs[ENET_PALR] = (s->conf.macaddr.a[0] << 24)
+ | (s->conf.macaddr.a[1] << 16)
+ | (s->conf.macaddr.a[2] << 8)
+ | s->conf.macaddr.a[3];
+ s->regs[ENET_PAUR] = (s->conf.macaddr.a[4] << 24)
+ | (s->conf.macaddr.a[5] << 16)
+ | 0x8808;
+
+ s->regs[ENET_FRBR] = 0x00000600;
+ s->regs[ENET_FRSR] = 0x00000500;
+ s->regs[ENET_MIIGSK_ENR] = 0x00000006;
+
+ s->rx_descriptor = 0;
+ s->tx_descriptor = 0;
/* We also reset the PHY */
phy_reset(s);
@@ -354,185 +405,180 @@ static void imx_fec_reset(DeviceState *d)
static uint64_t imx_fec_read(void *opaque, hwaddr addr, unsigned size)
{
+ uint32_t value = 0;
IMXFECState *s = IMX_FEC(opaque);
-
- FEC_PRINTF("reading from @ 0x%" HWADDR_PRIx "\n", addr);
-
- switch (addr & 0x3ff) {
- case 0x004:
- return s->eir;
- case 0x008:
- return s->eimr;
- case 0x010:
- return s->rx_enabled ? (1 << 24) : 0; /* RDAR */
- case 0x014:
- return 0; /* TDAR */
- case 0x024:
- return s->ecr;
- case 0x040:
- return s->mmfr;
- case 0x044:
- return s->mscr;
- case 0x064:
- return s->mibc; /* MIBC */
- case 0x084:
- return s->rcr;
- case 0x0c4:
- return s->tcr;
- case 0x0e4: /* PALR */
- return (s->conf.macaddr.a[0] << 24)
- | (s->conf.macaddr.a[1] << 16)
- | (s->conf.macaddr.a[2] << 8)
- | s->conf.macaddr.a[3];
- break;
- case 0x0e8: /* PAUR */
- return (s->conf.macaddr.a[4] << 24)
- | (s->conf.macaddr.a[5] << 16)
- | 0x8808;
- case 0x0ec:
- return 0x10000; /* OPD */
- case 0x118:
- return 0;
- case 0x11c:
- return 0;
- case 0x120:
- return 0;
- case 0x124:
- return 0;
- case 0x144:
- return s->tfwr;
- case 0x14c:
- return 0x600;
- case 0x150:
- return s->frsr;
- case 0x180:
- return s->erdsr;
- case 0x184:
- return s->etdsr;
- case 0x188:
- return s->emrbr;
- case 0x300:
- return s->miigsk_cfgr;
- case 0x308:
- return s->miigsk_enr;
+ uint32_t index = addr >> 2;
+
+ switch (index) {
+ case ENET_EIR:
+ case ENET_EIMR:
+ case ENET_RDAR:
+ case ENET_TDAR:
+ case ENET_ECR:
+ case ENET_MMFR:
+ case ENET_MSCR:
+ case ENET_MIBC:
+ case ENET_RCR:
+ case ENET_TCR:
+ case ENET_PALR:
+ case ENET_PAUR:
+ case ENET_OPD:
+ case ENET_IAUR:
+ case ENET_IALR:
+ case ENET_GAUR:
+ case ENET_GALR:
+ case ENET_TFWR:
+ case ENET_RDSR:
+ case ENET_TDSR:
+ case ENET_MRBR:
+ case ENET_FRBR:
+ case ENET_FRSR:
+ case ENET_MIIGSK_CFGR:
+ case ENET_MIIGSK_ENR:
+ value = s->regs[index];
+ break;
default:
- qemu_log_mask(LOG_GUEST_ERROR, "[%s]%s: Bad address at offset 0x%"
- HWADDR_PRIx "\n", TYPE_IMX_FEC, __func__, addr);
- return 0;
+ qemu_log_mask(LOG_GUEST_ERROR, "[%s]%s: Bad register at offset 0x%"
+ PRIx32 "\n", TYPE_IMX_FEC, __func__, index * 4);
+ break;
}
+
+ FEC_PRINTF("reg[%s] => 0x%" PRIx32 "\n", imx_fec_reg_name(s, index),
+ value);
+
+ return value;
}
static void imx_fec_write(void *opaque, hwaddr addr,
uint64_t value, unsigned size)
{
IMXFECState *s = IMX_FEC(opaque);
+ uint32_t index = addr >> 2;
- FEC_PRINTF("writing 0x%08x @ 0x%" HWADDR_PRIx "\n", (int)value, addr);
+ FEC_PRINTF("reg[%s] <= 0x%" PRIx32 "\n", imx_fec_reg_name(s, index),
+ (uint32_t)value);
- switch (addr & 0x3ff) {
- case 0x004: /* EIR */
- s->eir &= ~value;
+ switch (index) {
+ case ENET_EIR:
+ s->regs[index] &= ~value;
break;
- case 0x008: /* EIMR */
- s->eimr = value;
+ case ENET_EIMR:
+ s->regs[index] = value;
break;
- case 0x010: /* RDAR */
- if ((s->ecr & ENET_ECR_ETHEREN) && !s->rx_enabled) {
- imx_fec_enable_rx(s);
+ case ENET_RDAR:
+ if (s->regs[ENET_ECR] & ENET_ECR_ETHEREN) {
+ if (!s->regs[index]) {
+ s->regs[index] = ENET_RDAR_RDAR;
+ imx_fec_enable_rx(s);
+ }
+ } else {
+ s->regs[index] = 0;
}
break;
- case 0x014: /* TDAR */
- if (s->ecr & ENET_ECR_ETHEREN) {
+ case ENET_TDAR:
+ if (s->regs[ENET_ECR] & ENET_ECR_ETHEREN) {
+ s->regs[index] = ENET_TDAR_TDAR;
imx_fec_do_tx(s);
}
+ s->regs[index] = 0;
break;
- case 0x024: /* ECR */
- s->ecr = value;
+ case ENET_ECR:
if (value & ENET_ECR_RESET) {
- imx_fec_reset(DEVICE(s));
+ return imx_fec_reset(DEVICE(s));
}
- if ((s->ecr & ENET_ECR_ETHEREN) == 0) {
- s->rx_enabled = 0;
- s->rx_descriptor = s->erdsr;
- s->tx_descriptor = s->etdsr;
+ s->regs[index] = value;
+ if ((s->regs[index] & ENET_ECR_ETHEREN) == 0) {
+ s->regs[ENET_RDAR] = 0;
+ s->rx_descriptor = s->regs[ENET_RDSR];
+ s->regs[ENET_TDAR] = 0;
+ s->tx_descriptor = s->regs[ENET_TDSR];
}
break;
- case 0x040: /* MMFR */
- /* store the value */
- s->mmfr = value;
+ case ENET_MMFR:
+ s->regs[index] = value;
if (extract32(value, 29, 1)) {
- s->mmfr = do_phy_read(s, extract32(value, 18, 10));
+ /* This is a read operation */
+ s->regs[ENET_MMFR] = deposit32(s->regs[ENET_MMFR], 0, 16,
+ do_phy_read(s,
+ extract32(value,
+ 18, 10)));
} else {
+ /* This a write operation */
do_phy_write(s, extract32(value, 18, 10), extract32(value, 0, 16));
}
/* raise the interrupt as the PHY operation is done */
- s->eir |= ENET_INT_MII;
+ s->regs[ENET_EIR] |= ENET_INT_MII;
break;
- case 0x044: /* MSCR */
- s->mscr = value & 0xfe;
+ case ENET_MSCR:
+ s->regs[index] = value & 0xfe;
break;
- case 0x064: /* MIBC */
+ case ENET_MIBC:
/* TODO: Implement MIB. */
- s->mibc = (value & 0x80000000) ? 0xc0000000 : 0;
+ s->regs[index] = (value & 0x80000000) ? 0xc0000000 : 0;
break;
- case 0x084: /* RCR */
- s->rcr = value & 0x07ff003f;
+ case ENET_RCR:
+ s->regs[index] = value & 0x07ff003f;
/* TODO: Implement LOOP mode. */
break;
- case 0x0c4: /* TCR */
+ case ENET_TCR:
/* We transmit immediately, so raise GRA immediately. */
- s->tcr = value;
+ s->regs[index] = value;
if (value & 1) {
- s->eir |= ENET_INT_GRA;
+ s->regs[ENET_EIR] |= ENET_INT_GRA;
}
break;
- case 0x0e4: /* PALR */
+ case ENET_PALR:
+ s->regs[index] = value;
s->conf.macaddr.a[0] = value >> 24;
s->conf.macaddr.a[1] = value >> 16;
s->conf.macaddr.a[2] = value >> 8;
s->conf.macaddr.a[3] = value;
break;
- case 0x0e8: /* PAUR */
+ case ENET_PAUR:
+ s->regs[index] = (value | 0x0000ffff) & 0xffff8808;
s->conf.macaddr.a[4] = value >> 24;
s->conf.macaddr.a[5] = value >> 16;
break;
- case 0x0ec: /* OPDR */
+ case ENET_OPD:
+ s->regs[index] = (value & 0x0000ffff) | 0x00010000;
break;
- case 0x118: /* IAUR */
- case 0x11c: /* IALR */
- case 0x120: /* GAUR */
- case 0x124: /* GALR */
+ case ENET_IAUR:
+ case ENET_IALR:
+ case ENET_GAUR:
+ case ENET_GALR:
/* TODO: implement MAC hash filtering. */
break;
- case 0x144: /* TFWR */
- s->tfwr = value & 3;
+ case ENET_TFWR:
+ s->regs[index] = value & 3;
break;
- case 0x14c: /* FRBR */
- /* FRBR writes ignored. */
+ case ENET_FRBR:
+ /* FRBR is read only */
+ qemu_log_mask(LOG_GUEST_ERROR, "[%s]%s: Register FRBR is read only\n",
+ TYPE_IMX_FEC, __func__);
break;
- case 0x150: /* FRSR */
- s->frsr = (value & 0x3fc) | 0x400;
+ case ENET_FRSR:
+ s->regs[index] = (value & 0x000003fc) | 0x00000400;
break;
- case 0x180: /* ERDSR */
- s->erdsr = value & ~3;
- s->rx_descriptor = s->erdsr;
+ case ENET_RDSR:
+ s->regs[index] = value & ~3;
+ s->rx_descriptor = s->regs[index];
break;
- case 0x184: /* ETDSR */
- s->etdsr = value & ~3;
- s->tx_descriptor = s->etdsr;
+ case ENET_TDSR:
+ s->regs[index] = value & ~3;
+ s->tx_descriptor = s->regs[index];
break;
- case 0x188: /* EMRBR */
- s->emrbr = value & 0x7f0;
+ case ENET_MRBR:
+ s->regs[index] = value & 0x000007f0;
break;
- case 0x300: /* MIIGSK_CFGR */
- s->miigsk_cfgr = value & 0x53;
+ case ENET_MIIGSK_CFGR:
+ s->regs[index] = value & 0x00000053;
break;
- case 0x308: /* MIIGSK_ENR */
- s->miigsk_enr = (value & 0x2) ? 0x6 : 0;
+ case ENET_MIIGSK_ENR:
+ s->regs[index] = (value & 0x00000002) ? 0x00000006 : 0;
break;
default:
qemu_log_mask(LOG_GUEST_ERROR, "[%s]%s: Bad address at offset 0x%"
- HWADDR_PRIx "\n", TYPE_IMX_FEC, __func__, addr);
+ PRIx32 "\n", TYPE_IMX_FEC, __func__, index * 4);
break;
}
@@ -543,7 +589,7 @@ static int imx_fec_can_receive(NetClientState *nc)
{
IMXFECState *s = IMX_FEC(qemu_get_nic_opaque(nc));
- return s->rx_enabled;
+ return s->regs[ENET_RDAR] ? 1 : 0;
}
static ssize_t imx_fec_receive(NetClientState *nc, const uint8_t *buf,
@@ -561,7 +607,7 @@ static ssize_t imx_fec_receive(NetClientState *nc, const uint8_t *buf,
FEC_PRINTF("len %d\n", (int)size);
- if (!s->rx_enabled) {
+ if (!s->regs[ENET_RDAR]) {
qemu_log_mask(LOG_GUEST_ERROR, "[%s]%s: Unexpected packet\n",
TYPE_IMX_FEC, __func__);
return 0;
@@ -579,7 +625,7 @@ static ssize_t imx_fec_receive(NetClientState *nc, const uint8_t *buf,
}
/* Frames larger than the user limit just set error flags. */
- if (size > (s->rcr >> 16)) {
+ if (size > (s->regs[ENET_RCR] >> 16)) {
flags |= ENET_BD_LG;
}
@@ -597,7 +643,7 @@ static ssize_t imx_fec_receive(NetClientState *nc, const uint8_t *buf,
TYPE_IMX_FEC, __func__);
break;
}
- buf_len = (size <= s->emrbr) ? size : s->emrbr;
+ buf_len = (size <= s->regs[ENET_MRBR]) ? size : s->regs[ENET_MRBR];
bd.length = buf_len;
size -= buf_len;
@@ -620,16 +666,16 @@ static ssize_t imx_fec_receive(NetClientState *nc, const uint8_t *buf,
/* Last buffer in frame. */
bd.flags |= flags | ENET_BD_L;
FEC_PRINTF("rx frame flags %04x\n", bd.flags);
- s->eir |= ENET_INT_RXF;
+ s->regs[ENET_EIR] |= ENET_INT_RXF;
} else {
- s->eir |= ENET_INT_RXB;
+ s->regs[ENET_EIR] |= ENET_INT_RXB;
}
imx_fec_write_bd(&bd, addr);
/* Advance to the next descriptor. */
if ((bd.flags & ENET_BD_W) != 0) {
- addr = s->erdsr;
+ addr = s->regs[ENET_RDSR];
} else {
- addr += 8;
+ addr += sizeof(bd);
}
}
s->rx_descriptor = addr;
diff --git a/include/hw/net/imx_fec.h b/include/hw/net/imx_fec.h
index e5e2f11..ed7a3b5 100644
--- a/include/hw/net/imx_fec.h
+++ b/include/hw/net/imx_fec.h
@@ -30,6 +30,33 @@
#include "hw/sysbus.h"
#include "net/net.h"
+#define ENET_EIR 1
+#define ENET_EIMR 2
+#define ENET_RDAR 4
+#define ENET_TDAR 5
+#define ENET_ECR 9
+#define ENET_MMFR 16
+#define ENET_MSCR 17
+#define ENET_MIBC 25
+#define ENET_RCR 33
+#define ENET_TCR 49
+#define ENET_PALR 57
+#define ENET_PAUR 58
+#define ENET_OPD 59
+#define ENET_IAUR 70
+#define ENET_IALR 71
+#define ENET_GAUR 72
+#define ENET_GALR 73
+#define ENET_TFWR 81
+#define ENET_FRBR 83
+#define ENET_FRSR 84
+#define ENET_RDSR 96
+#define ENET_TDSR 97
+#define ENET_MRBR 98
+#define ENET_MIIGSK_CFGR 192
+#define ENET_MIIGSK_ENR 194
+#define ENET_MAX 400
+
#define ENET_MAX_FRAME_SIZE 2032
#define ENET_INT_HB (1 << 31)
@@ -46,6 +73,12 @@
#define ENET_INT_RL (1 << 20)
#define ENET_INT_UN (1 << 19)
+/* RDAR */
+#define ENET_RDAR_RDAR (1 << 24)
+
+/* TDAR */
+#define ENET_TDAR_TDAR (1 << 24)
+
#define ENET_ECR_RESET (1 << 0)
#define ENET_ECR_ETHEREN (1 << 1)
@@ -83,25 +116,9 @@ typedef struct IMXFECState {
qemu_irq irq;
MemoryRegion iomem;
- uint32_t irq_state;
- uint32_t eir;
- uint32_t eimr;
- uint32_t rx_enabled;
+ uint32_t regs[ENET_MAX];
uint32_t rx_descriptor;
uint32_t tx_descriptor;
- uint32_t ecr;
- uint32_t mmfr;
- uint32_t mscr;
- uint32_t mibc;
- uint32_t rcr;
- uint32_t tcr;
- uint32_t tfwr;
- uint32_t frsr;
- uint32_t erdsr;
- uint32_t etdsr;
- uint32_t emrbr;
- uint32_t miigsk_cfgr;
- uint32_t miigsk_enr;
uint32_t phy_status;
uint32_t phy_control;
--
2.7.4
^ permalink raw reply related [flat|nested] 15+ messages in thread
* [Qemu-devel] [PATCH v5 09/10] Add ENET/Gbps Ethernet support to FEC device
2016-05-21 8:01 [Qemu-devel] [PATCH v5 00/10] Add Ethernet device for i.MX6 SOC Jean-Christophe Dubois
` (7 preceding siblings ...)
2016-05-21 8:01 ` [Qemu-devel] [PATCH v5 08/10] i.MX: move FEC device to a register array structure Jean-Christophe Dubois
@ 2016-05-21 8:01 ` Jean-Christophe Dubois
2016-05-21 8:01 ` [Qemu-devel] [PATCH v5 10/10] Add ENET device to i.MX6 SOC Jean-Christophe Dubois
2016-05-30 2:19 ` [Qemu-devel] [PATCH v5 00/10] Add Ethernet device for " Jason Wang
10 siblings, 0 replies; 15+ messages in thread
From: Jean-Christophe Dubois @ 2016-05-21 8:01 UTC (permalink / raw)
To: qemu-devel, peter.maydell, jasowang; +Cc: Jean-Christophe Dubois
The ENET device (present in i.MX6) is "derived" from FEC and backward
compatible with it.
This patch adds the necessary support of the added feature in the ENET
device to allow Linux to use it (on supported processors).
Signed-off-by: Jean-Christophe Dubois <jcd@tribudubois.net>
---
Changes since v1:
* Not present on v1
Changes since v2:
* Not present on v2
Changes since v3:
* Separate and fix the 2 supported interrupts
Changes since v4:
* is-fec property was dropped and 2 distinct devices (FEC and ENET) created
hw/arm/fsl-imx25.c | 1 +
hw/net/imx_fec.c | 673 ++++++++++++++++++++++++++++++++++++++++-------
include/hw/net/imx_fec.h | 131 ++++++++-
3 files changed, 702 insertions(+), 103 deletions(-)
diff --git a/hw/arm/fsl-imx25.c b/hw/arm/fsl-imx25.c
index 2f878b9..1cd749a 100644
--- a/hw/arm/fsl-imx25.c
+++ b/hw/arm/fsl-imx25.c
@@ -191,6 +191,7 @@ static void fsl_imx25_realize(DeviceState *dev, Error **errp)
}
qdev_set_nic_properties(DEVICE(&s->fec), &nd_table[0]);
+
object_property_set_bool(OBJECT(&s->fec), true, "realized", &err);
if (err) {
error_propagate(errp, err);
diff --git a/hw/net/imx_fec.c b/hw/net/imx_fec.c
index 0d0d557..cd45efd 100644
--- a/hw/net/imx_fec.c
+++ b/hw/net/imx_fec.c
@@ -24,6 +24,8 @@
#include "qemu/osdep.h"
#include "hw/net/imx_fec.h"
#include "sysemu/dma.h"
+#include "net/checksum.h"
+#include "net/eth.h"
/* For crc32 */
#include <zlib.h>
@@ -52,10 +54,93 @@
} \
} while (0)
-static const char *imx_fec_reg_name(IMXFECState *s, uint32_t index)
+static const char *imx_default_reg_name(IMXFECState *s, uint32_t index)
{
static char tmp[20];
+ sprintf(tmp, "index %d", index);
+ return tmp;
+}
+
+static const char *imx_fec_reg_name(IMXFECState *s, uint32_t index)
+{
+ switch (index) {
+ case ENET_FRBR:
+ return "FRBR";
+ case ENET_FRSR:
+ return "FRSR";
+ case ENET_MIIGSK_CFGR:
+ return "MIIGSK_CFGR";
+ case ENET_MIIGSK_ENR:
+ return "MIIGSK_ENR";
+ default:
+ return imx_default_reg_name(s, index);
+ }
+}
+
+static const char *imx_enet_reg_name(IMXFECState *s, uint32_t index)
+{
+ switch (index) {
+ case ENET_RSFL:
+ return "RSFL";
+ case ENET_RSEM:
+ return "RSEM";
+ case ENET_RAEM:
+ return "RAEM";
+ case ENET_RAFL:
+ return "RAFL";
+ case ENET_TSEM:
+ return "TSEM";
+ case ENET_TAEM:
+ return "TAEM";
+ case ENET_TAFL:
+ return "TAFL";
+ case ENET_TIPG:
+ return "TIPG";
+ case ENET_FTRL:
+ return "FTRL";
+ case ENET_TACC:
+ return "TACC";
+ case ENET_RACC:
+ return "RACC";
+ case ENET_ATCR:
+ return "ATCR";
+ case ENET_ATVR:
+ return "ATVR";
+ case ENET_ATOFF:
+ return "ATOFF";
+ case ENET_ATPER:
+ return "ATPER";
+ case ENET_ATCOR:
+ return "ATCOR";
+ case ENET_ATINC:
+ return "ATINC";
+ case ENET_ATSTMP:
+ return "ATSTMP";
+ case ENET_TGSR:
+ return "TGSR";
+ case ENET_TCSR0:
+ return "TCSR0";
+ case ENET_TCCR0:
+ return "TCCR0";
+ case ENET_TCSR1:
+ return "TCSR1";
+ case ENET_TCCR1:
+ return "TCCR1";
+ case ENET_TCSR2:
+ return "TCSR2";
+ case ENET_TCCR2:
+ return "TCCR2";
+ case ENET_TCSR3:
+ return "TCSR3";
+ case ENET_TCCR3:
+ return "TCCR3";
+ default:
+ return imx_default_reg_name(s, index);
+ }
+}
+static const char *imx_eth_reg_name(IMXFECState *s, uint32_t index)
+{
switch (index) {
case ENET_EIR:
return "EIR";
@@ -99,21 +184,16 @@ static const char *imx_fec_reg_name(IMXFECState *s, uint32_t index)
return "TDSR";
case ENET_MRBR:
return "MRBR";
- case ENET_FRBR:
- return "FRBR";
- case ENET_FRSR:
- return "FRSR";
- case ENET_MIIGSK_CFGR:
- return "MIIGSK_CFGR";
- case ENET_MIIGSK_ENR:
- return "MIIGSK_ENR";
default:
- sprintf(tmp, "index %d", index);
- return tmp;
+ if (s->is_fec) {
+ return imx_fec_reg_name(s, index);
+ } else {
+ return imx_enet_reg_name(s, index);
+ }
}
}
-static const VMStateDescription vmstate_imx_fec = {
+static const VMStateDescription vmstate_imx_eth = {
.name = TYPE_IMX_FEC,
.version_id = 2,
.minimum_version_id = 2,
@@ -139,7 +219,7 @@ static const VMStateDescription vmstate_imx_fec = {
#define PHY_INT_PARFAULT (1 << 2)
#define PHY_INT_AUTONEG_PAGE (1 << 1)
-static void imx_fec_update(IMXFECState *s);
+static void imx_eth_update(IMXFECState *s);
/*
* The MII phy could raise a GPIO to the processor which in turn
@@ -149,7 +229,7 @@ static void imx_fec_update(IMXFECState *s);
*/
static void phy_update_irq(IMXFECState *s)
{
- imx_fec_update(s);
+ imx_eth_update(s);
}
static void phy_update_link(IMXFECState *s)
@@ -168,7 +248,7 @@ static void phy_update_link(IMXFECState *s)
phy_update_irq(s);
}
-static void imx_fec_set_link(NetClientState *nc)
+static void imx_eth_set_link(NetClientState *nc)
{
phy_update_link(IMX_FEC(qemu_get_nic_opaque(nc)));
}
@@ -294,14 +374,28 @@ static void imx_fec_write_bd(IMXFECBufDesc *bd, dma_addr_t addr)
dma_memory_write(&address_space_memory, addr, bd, sizeof(*bd));
}
-static void imx_fec_update(IMXFECState *s)
+static void imx_enet_read_bd(IMXENETBufDesc *bd, dma_addr_t addr)
+{
+ dma_memory_read(&address_space_memory, addr, bd, sizeof(*bd));
+}
+
+static void imx_enet_write_bd(IMXENETBufDesc *bd, dma_addr_t addr)
{
- if (s->regs[ENET_EIR] & s->regs[ENET_EIMR]) {
- FEC_PRINTF("interrupt raised\n");
- qemu_set_irq(s->irq, 1);
+ dma_memory_write(&address_space_memory, addr, bd, sizeof(*bd));
+}
+
+static void imx_eth_update(IMXFECState *s)
+{
+ if (s->regs[ENET_EIR] & s->regs[ENET_EIMR] & ENET_INT_TS_TIMER) {
+ qemu_set_irq(s->irq[1], 1);
+ } else {
+ qemu_set_irq(s->irq[1], 0);
+ }
+
+ if (s->regs[ENET_EIR] & s->regs[ENET_EIMR] & ENET_INT_MAC) {
+ qemu_set_irq(s->irq[0], 1);
} else {
- FEC_PRINTF("interrupt lowered\n");
- qemu_set_irq(s->irq, 0);
+ qemu_set_irq(s->irq[0], 0);
}
}
@@ -321,6 +415,7 @@ static void imx_fec_do_tx(IMXFECState *s)
addr, bd.flags, bd.length, bd.data);
if ((bd.flags & ENET_BD_R) == 0) {
/* Run out of descriptors to transmit. */
+ FEC_PRINTF("tx_bd ran out of descriptors to transmit\n");
break;
}
len = bd.length;
@@ -352,10 +447,90 @@ static void imx_fec_do_tx(IMXFECState *s)
s->tx_descriptor = addr;
- imx_fec_update(s);
+ imx_eth_update(s);
+}
+
+static void imx_enet_do_tx(IMXFECState *s)
+{
+ int frame_size = 0;
+ uint8_t frame[ENET_MAX_FRAME_SIZE];
+ uint8_t *ptr = frame;
+ uint32_t addr = s->tx_descriptor;
+
+ while (1) {
+ IMXENETBufDesc bd;
+ int len;
+
+ imx_enet_read_bd(&bd, addr);
+ FEC_PRINTF("tx_bd %x flags %04x len %d data %08x option %04x "
+ "status %04x\n", addr, bd.flags, bd.length, bd.data,
+ bd.option, bd.status);
+ if ((bd.flags & ENET_BD_R) == 0) {
+ /* Run out of descriptors to transmit. */
+ break;
+ }
+ len = bd.length;
+ if (frame_size + len > ENET_MAX_FRAME_SIZE) {
+ len = ENET_MAX_FRAME_SIZE - frame_size;
+ s->regs[ENET_EIR] |= ENET_INT_BABT;
+ }
+ dma_memory_read(&address_space_memory, bd.data, ptr, len);
+ ptr += len;
+ frame_size += len;
+ if (bd.flags & ENET_BD_L) {
+ if (bd.option & ENET_BD_PINS) {
+ struct ip_header *ip_hd = PKT_GET_IP_HDR(frame);
+ if (IP_HEADER_VERSION(ip_hd) == 4) {
+ net_checksum_calculate(frame, frame_size);
+ }
+ }
+ if (bd.option & ENET_BD_IINS) {
+ struct ip_header *ip_hd = PKT_GET_IP_HDR(frame);
+ /* We compute checksum only for IPv4 frames */
+ if (IP_HEADER_VERSION(ip_hd) == 4) {
+ uint16_t csum;
+ ip_hd->ip_sum = 0;
+ csum = net_raw_checksum((uint8_t *)ip_hd, sizeof(*ip_hd));
+ ip_hd->ip_sum = cpu_to_be16(csum);
+ }
+ }
+ /* Last buffer in frame. */
+ qemu_send_packet(qemu_get_queue(s->nic), frame, len);
+ ptr = frame;
+ frame_size = 0;
+ if (bd.option & ENET_BD_TX_INT) {
+ s->regs[ENET_EIR] |= ENET_INT_TXF;
+ }
+ }
+ if (bd.option & ENET_BD_TX_INT) {
+ s->regs[ENET_EIR] |= ENET_INT_TXB;
+ }
+ bd.flags &= ~ENET_BD_R;
+ /* Write back the modified descriptor. */
+ imx_enet_write_bd(&bd, addr);
+ /* Advance to the next descriptor. */
+ if ((bd.flags & ENET_BD_W) != 0) {
+ addr = s->regs[ENET_TDSR];
+ } else {
+ addr += sizeof(bd);
+ }
+ }
+
+ s->tx_descriptor = addr;
+
+ imx_eth_update(s);
+}
+
+static void imx_eth_do_tx(IMXFECState *s)
+{
+ if (!s->is_fec && (s->regs[ENET_ECR] & ENET_ECR_EN1588)) {
+ imx_enet_do_tx(s);
+ } else {
+ imx_fec_do_tx(s);
+ }
}
-static void imx_fec_enable_rx(IMXFECState *s)
+static void imx_eth_enable_rx(IMXFECState *s)
{
IMXFECBufDesc bd;
bool tmp;
@@ -373,11 +548,11 @@ static void imx_fec_enable_rx(IMXFECState *s)
s->regs[ENET_RDAR] = tmp ? ENET_RDAR_RDAR : 0;
}
-static void imx_fec_reset(DeviceState *d)
+static void imx_eth_reset(DeviceState *d)
{
IMXFECState *s = IMX_FEC(d);
- /* Reset the FEC */
+ /* Reset the Device */
memset(s->regs, 0, sizeof(s->regs));
s->regs[ENET_ECR] = 0xf0000000;
s->regs[ENET_MIBC] = 0xc0000000;
@@ -392,9 +567,19 @@ static void imx_fec_reset(DeviceState *d)
| (s->conf.macaddr.a[5] << 16)
| 0x8808;
- s->regs[ENET_FRBR] = 0x00000600;
- s->regs[ENET_FRSR] = 0x00000500;
- s->regs[ENET_MIIGSK_ENR] = 0x00000006;
+ if (s->is_fec) {
+ s->regs[ENET_FRBR] = 0x00000600;
+ s->regs[ENET_FRSR] = 0x00000500;
+ s->regs[ENET_MIIGSK_ENR] = 0x00000006;
+ } else {
+ s->regs[ENET_RAEM] = 0x00000004;
+ s->regs[ENET_RAFL] = 0x00000004;
+ s->regs[ENET_TAEM] = 0x00000004;
+ s->regs[ENET_TAFL] = 0x00000008;
+ s->regs[ENET_TIPG] = 0x0000000c;
+ s->regs[ENET_FTRL] = 0x000007ff;
+ s->regs[ENET_ATPER] = 0x3b9aca00;
+ }
s->rx_descriptor = 0;
s->tx_descriptor = 0;
@@ -403,11 +588,67 @@ static void imx_fec_reset(DeviceState *d)
phy_reset(s);
}
-static uint64_t imx_fec_read(void *opaque, hwaddr addr, unsigned size)
+static uint32_t imx_default_read(IMXFECState *s, uint32_t index)
+{
+ qemu_log_mask(LOG_GUEST_ERROR, "[%s]%s: Bad register at offset 0x%"
+ PRIx32 "\n", TYPE_IMX_FEC, __func__, index * 4);
+ return 0;
+}
+
+static uint32_t imx_fec_read(IMXFECState *s, uint32_t index)
+{
+ switch (index) {
+ case ENET_FRBR:
+ case ENET_FRSR:
+ case ENET_MIIGSK_CFGR:
+ case ENET_MIIGSK_ENR:
+ return s->regs[index];
+ default:
+ return imx_default_read(s, index);
+ }
+}
+
+static uint32_t imx_enet_read(IMXFECState *s, uint32_t index)
+{
+ switch (index) {
+ case ENET_RSFL:
+ case ENET_RSEM:
+ case ENET_RAEM:
+ case ENET_RAFL:
+ case ENET_TSEM:
+ case ENET_TAEM:
+ case ENET_TAFL:
+ case ENET_TIPG:
+ case ENET_FTRL:
+ case ENET_TACC:
+ case ENET_RACC:
+ case ENET_ATCR:
+ case ENET_ATVR:
+ case ENET_ATOFF:
+ case ENET_ATPER:
+ case ENET_ATCOR:
+ case ENET_ATINC:
+ case ENET_ATSTMP:
+ case ENET_TGSR:
+ case ENET_TCSR0:
+ case ENET_TCCR0:
+ case ENET_TCSR1:
+ case ENET_TCCR1:
+ case ENET_TCSR2:
+ case ENET_TCCR2:
+ case ENET_TCSR3:
+ case ENET_TCCR3:
+ return s->regs[index];
+ default:
+ return imx_default_read(s, index);
+ }
+}
+
+static uint64_t imx_eth_read(void *opaque, hwaddr offset, unsigned size)
{
uint32_t value = 0;
IMXFECState *s = IMX_FEC(opaque);
- uint32_t index = addr >> 2;
+ uint32_t index = offset >> 2;
switch (index) {
case ENET_EIR:
@@ -431,32 +672,126 @@ static uint64_t imx_fec_read(void *opaque, hwaddr addr, unsigned size)
case ENET_RDSR:
case ENET_TDSR:
case ENET_MRBR:
- case ENET_FRBR:
- case ENET_FRSR:
- case ENET_MIIGSK_CFGR:
- case ENET_MIIGSK_ENR:
value = s->regs[index];
break;
default:
- qemu_log_mask(LOG_GUEST_ERROR, "[%s]%s: Bad register at offset 0x%"
- PRIx32 "\n", TYPE_IMX_FEC, __func__, index * 4);
+ if (s->is_fec) {
+ value = imx_fec_read(s, index);
+ } else {
+ value = imx_enet_read(s, index);
+ }
break;
}
- FEC_PRINTF("reg[%s] => 0x%" PRIx32 "\n", imx_fec_reg_name(s, index),
+ FEC_PRINTF("reg[%s] => 0x%" PRIx32 "\n", imx_eth_reg_name(s, index),
value);
return value;
}
-static void imx_fec_write(void *opaque, hwaddr addr,
- uint64_t value, unsigned size)
+static void imx_default_write(IMXFECState *s, uint32_t index, uint32_t value)
+{
+ qemu_log_mask(LOG_GUEST_ERROR, "[%s]%s: Bad address at offset 0x%"
+ PRIx32 "\n", TYPE_IMX_FEC, __func__, index * 4);
+ return;
+}
+
+static void imx_fec_write(IMXFECState *s, uint32_t index, uint32_t value)
+{
+ switch (index) {
+ case ENET_FRBR:
+ /* FRBR is read only */
+ qemu_log_mask(LOG_GUEST_ERROR, "[%s]%s: Register FRBR is read only\n",
+ TYPE_IMX_FEC, __func__);
+ break;
+ case ENET_FRSR:
+ s->regs[index] = (value & 0x000003fc) | 0x00000400;
+ break;
+ case ENET_MIIGSK_CFGR:
+ s->regs[index] = value & 0x00000053;
+ break;
+ case ENET_MIIGSK_ENR:
+ s->regs[index] = (value & 0x00000002) ? 0x00000006 : 0;
+ break;
+ default:
+ imx_default_write(s, index, value);
+ break;
+ }
+}
+
+static void imx_enet_write(IMXFECState *s, uint32_t index, uint32_t value)
+{
+ switch (index) {
+ case ENET_RSFL:
+ case ENET_RSEM:
+ case ENET_RAEM:
+ case ENET_RAFL:
+ case ENET_TSEM:
+ case ENET_TAEM:
+ case ENET_TAFL:
+ s->regs[index] = value & 0x000001ff;
+ break;
+ case ENET_TIPG:
+ s->regs[index] = value & 0x0000001f;
+ break;
+ case ENET_FTRL:
+ s->regs[index] = value & 0x00003fff;
+ break;
+ case ENET_TACC:
+ s->regs[index] = value & 0x00000019;
+ break;
+ case ENET_RACC:
+ s->regs[index] = value & 0x000000C7;
+ break;
+ case ENET_ATCR:
+ s->regs[index] = value & 0x00002a9d;
+ break;
+ case ENET_ATVR:
+ case ENET_ATOFF:
+ case ENET_ATPER:
+ s->regs[index] = value;
+ break;
+ case ENET_ATSTMP:
+ /* ATSTMP is read only */
+ qemu_log_mask(LOG_GUEST_ERROR, "[%s]%s: Register ATSTMP is read only\n",
+ TYPE_IMX_FEC, __func__);
+ break;
+ case ENET_ATCOR:
+ s->regs[index] = value & 0x7fffffff;
+ break;
+ case ENET_ATINC:
+ s->regs[index] = value & 0x00007f7f;
+ break;
+ case ENET_TGSR:
+ /* implement clear timer flag */
+ value = value & 0x0000000f;
+ break;
+ case ENET_TCSR0:
+ case ENET_TCSR1:
+ case ENET_TCSR2:
+ case ENET_TCSR3:
+ value = value & 0x000000fd;
+ break;
+ case ENET_TCCR0:
+ case ENET_TCCR1:
+ case ENET_TCCR2:
+ case ENET_TCCR3:
+ s->regs[index] = value;
+ break;
+ default:
+ imx_default_write(s, index, value);
+ break;
+ }
+}
+
+static void imx_eth_write(void *opaque, hwaddr offset, uint64_t value,
+ unsigned size)
{
IMXFECState *s = IMX_FEC(opaque);
- uint32_t index = addr >> 2;
+ uint32_t index = offset >> 2;
- FEC_PRINTF("reg[%s] <= 0x%" PRIx32 "\n", imx_fec_reg_name(s, index),
- (uint32_t)value);
+ FEC_PRINTF("reg[%s] <= 0x%" PRIx32 "\n", imx_eth_reg_name(s, index),
+ (uint32_t)value);
switch (index) {
case ENET_EIR:
@@ -469,7 +804,7 @@ static void imx_fec_write(void *opaque, hwaddr addr,
if (s->regs[ENET_ECR] & ENET_ECR_ETHEREN) {
if (!s->regs[index]) {
s->regs[index] = ENET_RDAR_RDAR;
- imx_fec_enable_rx(s);
+ imx_eth_enable_rx(s);
}
} else {
s->regs[index] = 0;
@@ -478,13 +813,13 @@ static void imx_fec_write(void *opaque, hwaddr addr,
case ENET_TDAR:
if (s->regs[ENET_ECR] & ENET_ECR_ETHEREN) {
s->regs[index] = ENET_TDAR_TDAR;
- imx_fec_do_tx(s);
+ imx_eth_do_tx(s);
}
s->regs[index] = 0;
break;
case ENET_ECR:
if (value & ENET_ECR_RESET) {
- return imx_fec_reset(DEVICE(s));
+ return imx_eth_reset(DEVICE(s));
}
s->regs[index] = value;
if ((s->regs[index] & ENET_ECR_ETHEREN) == 0) {
@@ -549,46 +884,49 @@ static void imx_fec_write(void *opaque, hwaddr addr,
/* TODO: implement MAC hash filtering. */
break;
case ENET_TFWR:
- s->regs[index] = value & 3;
- break;
- case ENET_FRBR:
- /* FRBR is read only */
- qemu_log_mask(LOG_GUEST_ERROR, "[%s]%s: Register FRBR is read only\n",
- TYPE_IMX_FEC, __func__);
- break;
- case ENET_FRSR:
- s->regs[index] = (value & 0x000003fc) | 0x00000400;
+ if (s->is_fec) {
+ s->regs[index] = value & 0x3;
+ } else {
+ s->regs[index] = value & 0x13f;
+ }
break;
case ENET_RDSR:
- s->regs[index] = value & ~3;
+ if (s->is_fec) {
+ s->regs[index] = value & ~3;
+ } else {
+ s->regs[index] = value & ~7;
+ }
s->rx_descriptor = s->regs[index];
break;
case ENET_TDSR:
- s->regs[index] = value & ~3;
+ if (s->is_fec) {
+ s->regs[index] = value & ~3;
+ } else {
+ s->regs[index] = value & ~7;
+ }
s->tx_descriptor = s->regs[index];
break;
case ENET_MRBR:
- s->regs[index] = value & 0x000007f0;
- break;
- case ENET_MIIGSK_CFGR:
- s->regs[index] = value & 0x00000053;
- break;
- case ENET_MIIGSK_ENR:
- s->regs[index] = (value & 0x00000002) ? 0x00000006 : 0;
+ s->regs[index] = value & 0x00003ff0;
break;
default:
- qemu_log_mask(LOG_GUEST_ERROR, "[%s]%s: Bad address at offset 0x%"
- PRIx32 "\n", TYPE_IMX_FEC, __func__, index * 4);
- break;
+ if (s->is_fec) {
+ imx_fec_write(s, index, value);
+ } else {
+ imx_enet_write(s, index, value);
+ }
+ return;
}
- imx_fec_update(s);
+ imx_eth_update(s);
}
-static int imx_fec_can_receive(NetClientState *nc)
+static int imx_eth_can_receive(NetClientState *nc)
{
IMXFECState *s = IMX_FEC(qemu_get_nic_opaque(nc));
+ FEC_PRINTF("\n");
+
return s->regs[ENET_RDAR] ? 1 : 0;
}
@@ -618,7 +956,7 @@ static ssize_t imx_fec_receive(NetClientState *nc, const uint8_t *buf,
crc = cpu_to_be32(crc32(~0, buf, size));
crc_ptr = (uint8_t *) &crc;
- /* Huge frames are truncted. */
+ /* Huge frames are truncated. */
if (size > ENET_MAX_FRAME_SIZE) {
size = ENET_MAX_FRAME_SIZE;
flags |= ENET_BD_TR | ENET_BD_LG;
@@ -679,81 +1017,214 @@ static ssize_t imx_fec_receive(NetClientState *nc, const uint8_t *buf,
}
}
s->rx_descriptor = addr;
- imx_fec_enable_rx(s);
- imx_fec_update(s);
+ imx_eth_enable_rx(s);
+ imx_eth_update(s);
+ return len;
+}
+
+static ssize_t imx_enet_receive(NetClientState *nc, const uint8_t *buf,
+ size_t len)
+{
+ IMXFECState *s = IMX_FEC(qemu_get_nic_opaque(nc));
+ IMXENETBufDesc bd;
+ uint32_t flags = 0;
+ uint32_t addr;
+ uint32_t crc;
+ uint32_t buf_addr;
+ uint8_t *crc_ptr;
+ unsigned int buf_len;
+ size_t size = len;
+
+ FEC_PRINTF("len %d\n", (int)size);
+
+ if (!s->regs[ENET_RDAR]) {
+ qemu_log_mask(LOG_GUEST_ERROR, "[%s]%s: Unexpected packet\n",
+ TYPE_IMX_FEC, __func__);
+ return 0;
+ }
+
+ /* 4 bytes for the CRC. */
+ size += 4;
+ crc = cpu_to_be32(crc32(~0, buf, size));
+ crc_ptr = (uint8_t *) &crc;
+
+ /* Huge frames are truncted. */
+ if (size > ENET_MAX_FRAME_SIZE) {
+ size = ENET_MAX_FRAME_SIZE;
+ flags |= ENET_BD_TR | ENET_BD_LG;
+ }
+
+ /* Frames larger than the user limit just set error flags. */
+ if (size > (s->regs[ENET_RCR] >> 16)) {
+ flags |= ENET_BD_LG;
+ }
+
+ addr = s->rx_descriptor;
+ while (size > 0) {
+ imx_enet_read_bd(&bd, addr);
+ if ((bd.flags & ENET_BD_E) == 0) {
+ /* No descriptors available. Bail out. */
+ /*
+ * FIXME: This is wrong. We should probably either
+ * save the remainder for when more RX buffers are
+ * available, or flag an error.
+ */
+ qemu_log_mask(LOG_GUEST_ERROR, "[%s]%s: Lost end of frame\n",
+ TYPE_IMX_FEC, __func__);
+ break;
+ }
+ buf_len = (size <= s->regs[ENET_MRBR]) ? size : s->regs[ENET_MRBR];
+ bd.length = buf_len;
+ size -= buf_len;
+
+ FEC_PRINTF("rx_bd 0x%x length %d\n", addr, bd.length);
+
+ /* The last 4 bytes are the CRC. */
+ if (size < 4) {
+ buf_len += size - 4;
+ }
+ buf_addr = bd.data;
+ dma_memory_write(&address_space_memory, buf_addr, buf, buf_len);
+ buf += buf_len;
+ if (size < 4) {
+ dma_memory_write(&address_space_memory, buf_addr + buf_len,
+ crc_ptr, 4 - size);
+ crc_ptr += 4 - size;
+ }
+ bd.flags &= ~ENET_BD_E;
+ if (size == 0) {
+ /* Last buffer in frame. */
+ bd.flags |= flags | ENET_BD_L;
+ FEC_PRINTF("rx frame flags %04x\n", bd.flags);
+ if (bd.option & ENET_BD_RX_INT) {
+ s->regs[ENET_EIR] |= ENET_INT_RXF;
+ }
+ } else {
+ if (bd.option & ENET_BD_RX_INT) {
+ s->regs[ENET_EIR] |= ENET_INT_RXB;
+ }
+ }
+ imx_enet_write_bd(&bd, addr);
+ /* Advance to the next descriptor. */
+ if ((bd.flags & ENET_BD_W) != 0) {
+ addr = s->regs[ENET_RDSR];
+ } else {
+ addr += sizeof(bd);
+ }
+ }
+ s->rx_descriptor = addr;
+ imx_eth_enable_rx(s);
+ imx_eth_update(s);
return len;
}
-static const MemoryRegionOps imx_fec_ops = {
- .read = imx_fec_read,
- .write = imx_fec_write,
+static ssize_t imx_eth_receive(NetClientState *nc, const uint8_t *buf,
+ size_t len)
+{
+ IMXFECState *s = IMX_FEC(qemu_get_nic_opaque(nc));
+
+ if (!s->is_fec && (s->regs[ENET_ECR] & ENET_ECR_EN1588)) {
+ return imx_enet_receive(nc, buf, len);
+ } else {
+ return imx_fec_receive(nc, buf, len);
+ }
+}
+
+static const MemoryRegionOps imx_eth_ops = {
+ .read = imx_eth_read,
+ .write = imx_eth_write,
.valid.min_access_size = 4,
.valid.max_access_size = 4,
- .endianness = DEVICE_NATIVE_ENDIAN,
+ .endianness = DEVICE_NATIVE_ENDIAN,
};
-static void imx_fec_cleanup(NetClientState *nc)
+static void imx_eth_cleanup(NetClientState *nc)
{
IMXFECState *s = IMX_FEC(qemu_get_nic_opaque(nc));
s->nic = NULL;
}
-static NetClientInfo net_imx_fec_info = {
- .type = NET_CLIENT_OPTIONS_KIND_NIC,
- .size = sizeof(NICState),
- .can_receive = imx_fec_can_receive,
- .receive = imx_fec_receive,
- .cleanup = imx_fec_cleanup,
- .link_status_changed = imx_fec_set_link,
+static NetClientInfo imx_eth_net_info = {
+ .type = NET_CLIENT_OPTIONS_KIND_NIC,
+ .size = sizeof(NICState),
+ .can_receive = imx_eth_can_receive,
+ .receive = imx_eth_receive,
+ .cleanup = imx_eth_cleanup,
+ .link_status_changed = imx_eth_set_link,
};
-static void imx_fec_realize(DeviceState *dev, Error **errp)
+static void imx_eth_realize(DeviceState *dev, Error **errp)
{
IMXFECState *s = IMX_FEC(dev);
SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
- memory_region_init_io(&s->iomem, OBJECT(dev), &imx_fec_ops, s,
+ memory_region_init_io(&s->iomem, OBJECT(dev), &imx_eth_ops, s,
TYPE_IMX_FEC, 0x400);
sysbus_init_mmio(sbd, &s->iomem);
- sysbus_init_irq(sbd, &s->irq);
+ sysbus_init_irq(sbd, &s->irq[0]);
+ sysbus_init_irq(sbd, &s->irq[1]);
+
qemu_macaddr_default_if_unset(&s->conf.macaddr);
s->conf.peers.ncs[0] = nd_table[0].netdev;
- s->nic = qemu_new_nic(&net_imx_fec_info, &s->conf,
- object_get_typename(OBJECT(dev)), DEVICE(dev)->id,
- s);
+ s->nic = qemu_new_nic(&imx_eth_net_info, &s->conf,
+ object_get_typename(OBJECT(dev)),
+ DEVICE(dev)->id, s);
+
qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a);
}
-static Property imx_fec_properties[] = {
+static Property imx_eth_properties[] = {
DEFINE_NIC_PROPERTIES(IMXFECState, conf),
DEFINE_PROP_END_OF_LIST(),
};
-static void imx_fec_class_init(ObjectClass *klass, void *data)
+static void imx_eth_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
- dc->vmsd = &vmstate_imx_fec;
- dc->reset = imx_fec_reset;
- dc->props = imx_fec_properties;
- dc->realize = imx_fec_realize;
- dc->desc = "i.MX FEC Ethernet Controller";
+ dc->vmsd = &vmstate_imx_eth;
+ dc->reset = imx_eth_reset;
+ dc->props = imx_eth_properties;
+ dc->realize = imx_eth_realize;
+ dc->desc = "i.MX FEC/ENET Ethernet Controller";
+}
+
+static void imx_fec_init(Object *obj)
+{
+ IMXFECState *s = IMX_FEC(obj);
+
+ s->is_fec = true;
+}
+
+static void imx_enet_init(Object *obj)
+{
+ IMXFECState *s = IMX_FEC(obj);
+
+ s->is_fec = false;
}
static const TypeInfo imx_fec_info = {
- .name = TYPE_IMX_FEC,
- .parent = TYPE_SYS_BUS_DEVICE,
+ .name = TYPE_IMX_FEC,
+ .parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(IMXFECState),
- .class_init = imx_fec_class_init,
+ .instance_init = imx_fec_init,
+ .class_init = imx_eth_class_init,
+};
+
+static const TypeInfo imx_enet_info = {
+ .name = TYPE_IMX_ENET,
+ .parent = TYPE_IMX_FEC,
+ .instance_init = imx_enet_init,
};
-static void imx_fec_register_types(void)
+static void imx_eth_register_types(void)
{
type_register_static(&imx_fec_info);
+ type_register_static(&imx_enet_info);
}
-type_init(imx_fec_register_types)
+type_init(imx_eth_register_types)
diff --git a/include/hw/net/imx_fec.h b/include/hw/net/imx_fec.h
index ed7a3b5..62ad473 100644
--- a/include/hw/net/imx_fec.h
+++ b/include/hw/net/imx_fec.h
@@ -1,5 +1,5 @@
/*
- * i.MX Fast Ethernet Controller emulation.
+ * i.MX FEC/ENET Ethernet Controller emulation.
*
* Copyright (c) 2013 Jean-Christophe Dubois. <jcd@tribudubois.net>
*
@@ -27,6 +27,8 @@
#define TYPE_IMX_FEC "imx.fec"
#define IMX_FEC(obj) OBJECT_CHECK(IMXFECState, (obj), TYPE_IMX_FEC)
+#define TYPE_IMX_ENET "imx.enet"
+
#include "hw/sysbus.h"
#include "net/net.h"
@@ -53,12 +55,40 @@
#define ENET_RDSR 96
#define ENET_TDSR 97
#define ENET_MRBR 98
+#define ENET_RSFL 100
+#define ENET_RSEM 101
+#define ENET_RAEM 102
+#define ENET_RAFL 103
+#define ENET_TSEM 104
+#define ENET_TAEM 105
+#define ENET_TAFL 106
+#define ENET_TIPG 107
+#define ENET_FTRL 108
+#define ENET_TACC 112
+#define ENET_RACC 113
#define ENET_MIIGSK_CFGR 192
#define ENET_MIIGSK_ENR 194
+#define ENET_ATCR 256
+#define ENET_ATVR 257
+#define ENET_ATOFF 258
+#define ENET_ATPER 259
+#define ENET_ATCOR 260
+#define ENET_ATINC 261
+#define ENET_ATSTMP 262
+#define ENET_TGSR 385
+#define ENET_TCSR0 386
+#define ENET_TCCR0 387
+#define ENET_TCSR1 388
+#define ENET_TCCR1 389
+#define ENET_TCSR2 390
+#define ENET_TCCR2 391
+#define ENET_TCSR3 392
+#define ENET_TCCR3 393
#define ENET_MAX 400
#define ENET_MAX_FRAME_SIZE 2032
+/* EIR and EIMR */
#define ENET_INT_HB (1 << 31)
#define ENET_INT_BABR (1 << 30)
#define ENET_INT_BABT (1 << 29)
@@ -72,6 +102,17 @@
#define ENET_INT_LC (1 << 21)
#define ENET_INT_RL (1 << 20)
#define ENET_INT_UN (1 << 19)
+#define ENET_INT_PLR (1 << 18)
+#define ENET_INT_WAKEUP (1 << 17)
+#define ENET_INT_TS_AVAIL (1 << 16)
+#define ENET_INT_TS_TIMER (1 << 15)
+
+#define ENET_INT_MAC (ENET_INT_HB | ENET_INT_BABR | ENET_INT_BABT | \
+ ENET_INT_GRA | ENET_INT_TXF | ENET_INT_TXB | \
+ ENET_INT_RXF | ENET_INT_RXB | ENET_INT_MII | \
+ ENET_INT_EBERR | ENET_INT_LC | ENET_INT_RL | \
+ ENET_INT_UN | ENET_INT_PLR | ENET_INT_WAKEUP | \
+ ENET_INT_TS_AVAIL)
/* RDAR */
#define ENET_RDAR_RDAR (1 << 24)
@@ -79,8 +120,54 @@
/* TDAR */
#define ENET_TDAR_TDAR (1 << 24)
+/* ECR */
#define ENET_ECR_RESET (1 << 0)
#define ENET_ECR_ETHEREN (1 << 1)
+#define ENET_ECR_MAGICEN (1 << 2)
+#define ENET_ECR_SLEEP (1 << 3)
+#define ENET_ECR_EN1588 (1 << 4)
+#define ENET_ECR_SPEED (1 << 5)
+#define ENET_ECR_DBGEN (1 << 6)
+#define ENET_ECR_STOPEN (1 << 7)
+#define ENET_ECR_DSBWP (1 << 8)
+
+/* MIBC */
+#define ENET_MIBC_MIB_DIS (1 << 31)
+#define ENET_MIBC_MIB_IDLE (1 << 30)
+#define ENET_MIBC_MIB_CLEAR (1 << 29)
+
+/* RCR */
+#define ENET_RCR_LOOP (1 << 0)
+#define ENET_RCR_DRT (1 << 1)
+#define ENET_RCR_MII_MODE (1 << 2)
+#define ENET_RCR_PROM (1 << 3)
+#define ENET_RCR_BC_REJ (1 << 4)
+#define ENET_RCR_FCE (1 << 5)
+#define ENET_RCR_RGMII_EN (1 << 6)
+#define ENET_RCR_RMII_MODE (1 << 8)
+#define ENET_RCR_RMII_10T (1 << 9)
+#define ENET_RCR_PADEN (1 << 12)
+#define ENET_RCR_PAUFWD (1 << 13)
+#define ENET_RCR_CRCFWD (1 << 14)
+#define ENET_RCR_CFEN (1 << 15)
+#define ENET_RCR_MAX_FL_SHIFT (16)
+#define ENET_RCR_MAX_FL_LENGTH (14)
+#define ENET_RCR_NLC (1 << 30)
+#define ENET_RCR_GRS (1 << 31)
+
+/* TCR */
+#define ENET_TCR_GTS (1 << 0)
+#define ENET_TCR_FDEN (1 << 2)
+#define ENET_TCR_TFC_PAUSE (1 << 3)
+#define ENET_TCR_RFC_PAUSE (1 << 4)
+#define ENET_TCR_ADDSEL_SHIFT (5)
+#define ENET_TCR_ADDSEL_LENGTH (3)
+#define ENET_TCR_CRCFWD (1 << 9)
+
+/* RDSR */
+#define ENET_TWFR_TFWR_SHIFT (0)
+#define ENET_TWFR_TFWR_LENGTH (6)
+#define ENET_TWFR_STRFWD (1 << 8)
/* Buffer Descriptor. */
typedef struct {
@@ -106,6 +193,44 @@ typedef struct {
#define ENET_BD_OV (1 << 1)
#define ENET_BD_TR (1 << 0)
+typedef struct {
+ uint16_t length;
+ uint16_t flags;
+ uint32_t data;
+ uint16_t status;
+ uint16_t option;
+ uint16_t checksum;
+ uint16_t head_proto;
+ uint32_t last_buffer;
+ uint32_t timestamp;
+ uint32_t reserved[2];
+} IMXENETBufDesc;
+
+#define ENET_BD_ME (1 << 15)
+#define ENET_BD_TX_INT (1 << 14)
+#define ENET_BD_TS (1 << 13)
+#define ENET_BD_PINS (1 << 12)
+#define ENET_BD_IINS (1 << 11)
+#define ENET_BD_PE (1 << 10)
+#define ENET_BD_CE (1 << 9)
+#define ENET_BD_UC (1 << 8)
+#define ENET_BD_RX_INT (1 << 7)
+
+#define ENET_BD_TXE (1 << 15)
+#define ENET_BD_UE (1 << 13)
+#define ENET_BD_EE (1 << 12)
+#define ENET_BD_FE (1 << 11)
+#define ENET_BD_LCE (1 << 10)
+#define ENET_BD_OE (1 << 9)
+#define ENET_BD_TSE (1 << 8)
+#define ENET_BD_ICE (1 << 5)
+#define ENET_BD_PCR (1 << 4)
+#define ENET_BD_VLAN (1 << 2)
+#define ENET_BD_IPV6 (1 << 1)
+#define ENET_BD_FRAG (1 << 0)
+
+#define ENET_BD_BDU (1 << 31)
+
typedef struct IMXFECState {
/*< private >*/
SysBusDevice parent_obj;
@@ -113,7 +238,7 @@ typedef struct IMXFECState {
/*< public >*/
NICState *nic;
NICConf conf;
- qemu_irq irq;
+ qemu_irq irq[2];
MemoryRegion iomem;
uint32_t regs[ENET_MAX];
@@ -125,6 +250,8 @@ typedef struct IMXFECState {
uint32_t phy_advertise;
uint32_t phy_int;
uint32_t phy_int_mask;
+
+ bool is_fec;
} IMXFECState;
#endif
--
2.7.4
^ permalink raw reply related [flat|nested] 15+ messages in thread
* [Qemu-devel] [PATCH v5 10/10] Add ENET device to i.MX6 SOC.
2016-05-21 8:01 [Qemu-devel] [PATCH v5 00/10] Add Ethernet device for i.MX6 SOC Jean-Christophe Dubois
` (8 preceding siblings ...)
2016-05-21 8:01 ` [Qemu-devel] [PATCH v5 09/10] Add ENET/Gbps Ethernet support to FEC device Jean-Christophe Dubois
@ 2016-05-21 8:01 ` Jean-Christophe Dubois
2016-05-30 2:19 ` [Qemu-devel] [PATCH v5 00/10] Add Ethernet device for " Jason Wang
10 siblings, 0 replies; 15+ messages in thread
From: Jean-Christophe Dubois @ 2016-05-21 8:01 UTC (permalink / raw)
To: qemu-devel, peter.maydell, jasowang; +Cc: Jean-Christophe Dubois
This adds the ENET device to the i.MX6 SOC.
This was tested by booting Linux on an Qemu i.MX6 instance and accessing
the internet from the linux guest.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Jean-Christophe Dubois <jcd@tribudubois.net>
---
Changes since v1:
* Not present on v1
Changes since v2:
* None
Changes since v3:
* switch the 2 Eth interrupt numbers.
Changes since v4:
* None
hw/arm/fsl-imx6.c | 17 +++++++++++++++++
include/hw/arm/fsl-imx6.h | 6 ++++--
2 files changed, 21 insertions(+), 2 deletions(-)
diff --git a/hw/arm/fsl-imx6.c b/hw/arm/fsl-imx6.c
index a5331bf..0c00e7a 100644
--- a/hw/arm/fsl-imx6.c
+++ b/hw/arm/fsl-imx6.c
@@ -105,6 +105,10 @@ static void fsl_imx6_init(Object *obj)
snprintf(name, NAME_SIZE, "spi%d", i + 1);
object_property_add_child(obj, name, OBJECT(&s->spi[i]), NULL);
}
+
+ object_initialize(&s->eth, sizeof(s->eth), TYPE_IMX_ENET);
+ qdev_set_parent_bus(DEVICE(&s->eth), sysbus_get_default());
+ object_property_add_child(obj, "eth", OBJECT(&s->eth), NULL);
}
static void fsl_imx6_realize(DeviceState *dev, Error **errp)
@@ -381,6 +385,19 @@ static void fsl_imx6_realize(DeviceState *dev, Error **errp)
spi_table[i].irq));
}
+ object_property_set_bool(OBJECT(&s->eth), true, "realized", &err);
+ if (err) {
+ error_propagate(errp, err);
+ return;
+ }
+ sysbus_mmio_map(SYS_BUS_DEVICE(&s->eth), 0, FSL_IMX6_ENET_ADDR);
+ sysbus_connect_irq(SYS_BUS_DEVICE(&s->eth), 0,
+ qdev_get_gpio_in(DEVICE(&s->a9mpcore),
+ FSL_IMX6_ENET_MAC_IRQ));
+ sysbus_connect_irq(SYS_BUS_DEVICE(&s->eth), 1,
+ qdev_get_gpio_in(DEVICE(&s->a9mpcore),
+ FSL_IMX6_ENET_MAC_1588_IRQ));
+
/* ROM memory */
memory_region_init_rom_device(&s->rom, NULL, NULL, NULL, "imx6.rom",
FSL_IMX6_ROM_SIZE, &err);
diff --git a/include/hw/arm/fsl-imx6.h b/include/hw/arm/fsl-imx6.h
index d24aaee..fc1a438 100644
--- a/include/hw/arm/fsl-imx6.h
+++ b/include/hw/arm/fsl-imx6.h
@@ -28,6 +28,7 @@
#include "hw/gpio/imx_gpio.h"
#include "hw/sd/sdhci.h"
#include "hw/ssi/imx_spi.h"
+#include "hw/net/imx_fec.h"
#include "exec/memory.h"
#define TYPE_FSL_IMX6 "fsl,imx6"
@@ -57,6 +58,7 @@ typedef struct FslIMX6State {
IMXGPIOState gpio[FSL_IMX6_NUM_GPIOS];
SDHCIState esdhc[FSL_IMX6_NUM_ESDHCS];
IMXSPIState spi[FSL_IMX6_NUM_ECSPIS];
+ IMXFECState eth;
MemoryRegion rom;
MemoryRegion caam;
MemoryRegion ocram;
@@ -435,8 +437,8 @@ typedef struct FslIMX6State {
#define FSL_IMX6_HDMI_MASTER_IRQ 115
#define FSL_IMX6_HDMI_CEC_IRQ 116
#define FSL_IMX6_MLB150_LOW_IRQ 117
-#define FSL_IMX6_ENET_MAC_IRQ 118
-#define FSL_IMX6_ENET_MAC_1588_IRQ 119
+#define FSL_IMX6_ENET_MAC_1588_IRQ 118
+#define FSL_IMX6_ENET_MAC_IRQ 119
#define FSL_IMX6_PCIE1_IRQ 120
#define FSL_IMX6_PCIE2_IRQ 121
#define FSL_IMX6_PCIE3_IRQ 122
--
2.7.4
^ permalink raw reply related [flat|nested] 15+ messages in thread
* Re: [Qemu-devel] [PATCH v5 00/10] Add Ethernet device for i.MX6 SOC
2016-05-21 8:01 [Qemu-devel] [PATCH v5 00/10] Add Ethernet device for i.MX6 SOC Jean-Christophe Dubois
` (9 preceding siblings ...)
2016-05-21 8:01 ` [Qemu-devel] [PATCH v5 10/10] Add ENET device to i.MX6 SOC Jean-Christophe Dubois
@ 2016-05-30 2:19 ` Jason Wang
2016-05-30 6:04 ` Jean-Christophe DUBOIS
10 siblings, 1 reply; 15+ messages in thread
From: Jason Wang @ 2016-05-30 2:19 UTC (permalink / raw)
To: Jean-Christophe Dubois, qemu-devel, peter.maydell
On 2016年05月21日 16:01, Jean-Christophe Dubois wrote:
> This patch series adds Gb ENET Ethernet device to the i.MX6 SOC.
>
> The ENET device is an evolution of the FEC device present on the i.MX25 SOC
> and is backward compatible with it.
>
> Therefore the ENET support has been added to the actual Qemu FEC device (
> rather than adding a new device).
>
> The Patch has been tested by:
> * Booting linux on i.MX25 PDK board emulation and accessing internet
> * Booting linux on i.MX6 Sabrelite board emulation and accessing internet
>
> Jean-Christophe Dubois (10):
> net: improve UDP/TCP checksum computation.
> net: handle optional VLAN header in checksum computation.
> i.MX: Fix FEC code for MDIO operation selection
> i.MX: Fix FEC code for MDIO address selection
> i.MX: Fix FEC code for ECR register reset value.
> i.MX: reset TX/RX descriptors when FEC is disabled.
> i.MX: Rename i.MX FEC defines to ENET_XXX
> i.MX: move FEC device to a register array structure.
> Add ENET/Gbps Ethernet support to FEC device
> Add ENET device to i.MX6 SOC.
>
> hw/arm/fsl-imx25.c | 1 +
> hw/arm/fsl-imx6.c | 17 +
> hw/net/imx_fec.c | 1009 ++++++++++++++++++++++++++++++++++-----------
> include/hw/arm/fsl-imx6.h | 6 +-
> include/hw/net/imx_fec.h | 250 ++++++++---
> net/checksum.c | 121 ++++--
> 6 files changed, 1077 insertions(+), 327 deletions(-)
>
Want to merge this, but I get:
Applying: net: improve UDP/TCP checksum computation.
Applying: net: handle optional VLAN header in checksum computation.
Applying: i.MX: Fix FEC code for MDIO operation selection
Applying: i.MX: Fix FEC code for MDIO address selection
Applying: i.MX: Fix FEC code for ECR register reset value.
Applying: i.MX: reset TX/RX descriptors when FEC is disabled.
Applying: i.MX: Rename i.MX FEC defines to ENET_XXX
Applying: i.MX: move FEC device to a register array structure.
Applying: Add ENET/Gbps Ethernet support to FEC device
error: patch failed: hw/net/imx_fec.c:24
error: hw/net/imx_fec.c: patch does not apply
Patch failed at 0009 Add ENET/Gbps Ethernet support to FEC device
The copy of the patch that failed is found in: .git/rebase-apply/patch
When you have resolved this problem, run "git am --continue".
If you prefer to skip this patch, run "git am --skip" instead.
To restore the original branch and stop patching, run "git am --abort".
^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [Qemu-devel] [PATCH v5 00/10] Add Ethernet device for i.MX6 SOC
2016-05-30 2:19 ` [Qemu-devel] [PATCH v5 00/10] Add Ethernet device for " Jason Wang
@ 2016-05-30 6:04 ` Jean-Christophe DUBOIS
2016-05-30 6:10 ` Jason Wang
0 siblings, 1 reply; 15+ messages in thread
From: Jean-Christophe DUBOIS @ 2016-05-30 6:04 UTC (permalink / raw)
To: Jason Wang, qemu-devel, peter.maydell
Le 30/05/2016 04:19, Jason Wang a écrit :
>
>
> On 2016年05月21日 16:01, Jean-Christophe Dubois wrote:
>> This patch series adds Gb ENET Ethernet device to the i.MX6 SOC.
>>
>> The ENET device is an evolution of the FEC device present on the
>> i.MX25 SOC
>> and is backward compatible with it.
>>
>> Therefore the ENET support has been added to the actual Qemu FEC
>> device (
>> rather than adding a new device).
>>
>> The Patch has been tested by:
>> * Booting linux on i.MX25 PDK board emulation and accessing internet
>> * Booting linux on i.MX6 Sabrelite board emulation and accessing
>> internet
>>
>> Jean-Christophe Dubois (10):
>> net: improve UDP/TCP checksum computation.
>> net: handle optional VLAN header in checksum computation.
>> i.MX: Fix FEC code for MDIO operation selection
>> i.MX: Fix FEC code for MDIO address selection
>> i.MX: Fix FEC code for ECR register reset value.
>> i.MX: reset TX/RX descriptors when FEC is disabled.
>> i.MX: Rename i.MX FEC defines to ENET_XXX
>> i.MX: move FEC device to a register array structure.
>> Add ENET/Gbps Ethernet support to FEC device
>> Add ENET device to i.MX6 SOC.
>>
>> hw/arm/fsl-imx25.c | 1 +
>> hw/arm/fsl-imx6.c | 17 +
>> hw/net/imx_fec.c | 1009
>> ++++++++++++++++++++++++++++++++++-----------
>> include/hw/arm/fsl-imx6.h | 6 +-
>> include/hw/net/imx_fec.h | 250 ++++++++---
>> net/checksum.c | 121 ++++--
>> 6 files changed, 1077 insertions(+), 327 deletions(-)
>>
>
> Want to merge this, but I get:
>
> Applying: net: improve UDP/TCP checksum computation.
> Applying: net: handle optional VLAN header in checksum computation.
> Applying: i.MX: Fix FEC code for MDIO operation selection
> Applying: i.MX: Fix FEC code for MDIO address selection
> Applying: i.MX: Fix FEC code for ECR register reset value.
> Applying: i.MX: reset TX/RX descriptors when FEC is disabled.
> Applying: i.MX: Rename i.MX FEC defines to ENET_XXX
> Applying: i.MX: move FEC device to a register array structure.
> Applying: Add ENET/Gbps Ethernet support to FEC device
> error: patch failed: hw/net/imx_fec.c:24
> error: hw/net/imx_fec.c: patch does not apply
> Patch failed at 0009 Add ENET/Gbps Ethernet support to FEC device
> The copy of the patch that failed is found in: .git/rebase-apply/patch
> When you have resolved this problem, run "git am --continue".
> If you prefer to skip this patch, run "git am --skip" instead.
> To restore the original branch and stop patching, run "git am --abort".
This is because of commit 03dd024ff57733a55cd2e455f361d053c81b1b29 "hw:
explicitly include qemu/log.h" that has been applied meanwhile.
I'll send a new version soon.
JC
>
>
^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [Qemu-devel] [PATCH v5 00/10] Add Ethernet device for i.MX6 SOC
2016-05-30 6:04 ` Jean-Christophe DUBOIS
@ 2016-05-30 6:10 ` Jason Wang
2016-05-30 17:56 ` Jean-Christophe DUBOIS
0 siblings, 1 reply; 15+ messages in thread
From: Jason Wang @ 2016-05-30 6:10 UTC (permalink / raw)
To: Jean-Christophe DUBOIS, qemu-devel, peter.maydell
On 2016年05月30日 14:04, Jean-Christophe DUBOIS wrote:
> Le 30/05/2016 04:19, Jason Wang a écrit :
>>
>>
>> On 2016年05月21日 16:01, Jean-Christophe Dubois wrote:
>>> This patch series adds Gb ENET Ethernet device to the i.MX6 SOC.
>>>
>>> The ENET device is an evolution of the FEC device present on the
>>> i.MX25 SOC
>>> and is backward compatible with it.
>>>
>>> Therefore the ENET support has been added to the actual Qemu FEC
>>> device (
>>> rather than adding a new device).
>>>
>>> The Patch has been tested by:
>>> * Booting linux on i.MX25 PDK board emulation and accessing internet
>>> * Booting linux on i.MX6 Sabrelite board emulation and accessing
>>> internet
>>>
>>> Jean-Christophe Dubois (10):
>>> net: improve UDP/TCP checksum computation.
>>> net: handle optional VLAN header in checksum computation.
>>> i.MX: Fix FEC code for MDIO operation selection
>>> i.MX: Fix FEC code for MDIO address selection
>>> i.MX: Fix FEC code for ECR register reset value.
>>> i.MX: reset TX/RX descriptors when FEC is disabled.
>>> i.MX: Rename i.MX FEC defines to ENET_XXX
>>> i.MX: move FEC device to a register array structure.
>>> Add ENET/Gbps Ethernet support to FEC device
>>> Add ENET device to i.MX6 SOC.
>>>
>>> hw/arm/fsl-imx25.c | 1 +
>>> hw/arm/fsl-imx6.c | 17 +
>>> hw/net/imx_fec.c | 1009
>>> ++++++++++++++++++++++++++++++++++-----------
>>> include/hw/arm/fsl-imx6.h | 6 +-
>>> include/hw/net/imx_fec.h | 250 ++++++++---
>>> net/checksum.c | 121 ++++--
>>> 6 files changed, 1077 insertions(+), 327 deletions(-)
>>>
>>
>> Want to merge this, but I get:
>>
>> Applying: net: improve UDP/TCP checksum computation.
>> Applying: net: handle optional VLAN header in checksum computation.
>> Applying: i.MX: Fix FEC code for MDIO operation selection
>> Applying: i.MX: Fix FEC code for MDIO address selection
>> Applying: i.MX: Fix FEC code for ECR register reset value.
>> Applying: i.MX: reset TX/RX descriptors when FEC is disabled.
>> Applying: i.MX: Rename i.MX FEC defines to ENET_XXX
>> Applying: i.MX: move FEC device to a register array structure.
>> Applying: Add ENET/Gbps Ethernet support to FEC device
>> error: patch failed: hw/net/imx_fec.c:24
>> error: hw/net/imx_fec.c: patch does not apply
>> Patch failed at 0009 Add ENET/Gbps Ethernet support to FEC device
>> The copy of the patch that failed is found in: .git/rebase-apply/patch
>> When you have resolved this problem, run "git am --continue".
>> If you prefer to skip this patch, run "git am --skip" instead.
>> To restore the original branch and stop patching, run "git am --abort".
>
> This is because of commit 03dd024ff57733a55cd2e455f361d053c81b1b29
> "hw: explicitly include qemu/log.h" that has been applied meanwhile.
>
> I'll send a new version soon.
>
> JC
>
Thanks
^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [Qemu-devel] [PATCH v5 00/10] Add Ethernet device for i.MX6 SOC
2016-05-30 6:10 ` Jason Wang
@ 2016-05-30 17:56 ` Jean-Christophe DUBOIS
0 siblings, 0 replies; 15+ messages in thread
From: Jean-Christophe DUBOIS @ 2016-05-30 17:56 UTC (permalink / raw)
To: Jason Wang, qemu-devel, peter.maydell
Le 30/05/2016 08:10, Jason Wang a écrit :
>
>
> On 2016年05月30日 14:04, Jean-Christophe DUBOIS wrote:
>> Le 30/05/2016 04:19, Jason Wang a écrit :
>>>
>>>
>>> On 2016年05月21日 16:01, Jean-Christophe Dubois wrote:
>>>> This patch series adds Gb ENET Ethernet device to the i.MX6 SOC.
>>>>
>>>> The ENET device is an evolution of the FEC device present on the
>>>> i.MX25 SOC
>>>> and is backward compatible with it.
>>>>
>>>> Therefore the ENET support has been added to the actual Qemu FEC
>>>> device (
>>>> rather than adding a new device).
>>>>
>>>> The Patch has been tested by:
>>>> * Booting linux on i.MX25 PDK board emulation and accessing internet
>>>> * Booting linux on i.MX6 Sabrelite board emulation and accessing
>>>> internet
>>>>
>>>> Jean-Christophe Dubois (10):
>>>> net: improve UDP/TCP checksum computation.
>>>> net: handle optional VLAN header in checksum computation.
>>>> i.MX: Fix FEC code for MDIO operation selection
>>>> i.MX: Fix FEC code for MDIO address selection
>>>> i.MX: Fix FEC code for ECR register reset value.
>>>> i.MX: reset TX/RX descriptors when FEC is disabled.
>>>> i.MX: Rename i.MX FEC defines to ENET_XXX
>>>> i.MX: move FEC device to a register array structure.
>>>> Add ENET/Gbps Ethernet support to FEC device
>>>> Add ENET device to i.MX6 SOC.
>>>>
>>>> hw/arm/fsl-imx25.c | 1 +
>>>> hw/arm/fsl-imx6.c | 17 +
>>>> hw/net/imx_fec.c | 1009
>>>> ++++++++++++++++++++++++++++++++++-----------
>>>> include/hw/arm/fsl-imx6.h | 6 +-
>>>> include/hw/net/imx_fec.h | 250 ++++++++---
>>>> net/checksum.c | 121 ++++--
>>>> 6 files changed, 1077 insertions(+), 327 deletions(-)
>>>>
>>>
>>> Want to merge this, but I get:
>>>
>>> Applying: net: improve UDP/TCP checksum computation.
>>> Applying: net: handle optional VLAN header in checksum computation.
>>> Applying: i.MX: Fix FEC code for MDIO operation selection
>>> Applying: i.MX: Fix FEC code for MDIO address selection
>>> Applying: i.MX: Fix FEC code for ECR register reset value.
>>> Applying: i.MX: reset TX/RX descriptors when FEC is disabled.
>>> Applying: i.MX: Rename i.MX FEC defines to ENET_XXX
>>> Applying: i.MX: move FEC device to a register array structure.
>>> Applying: Add ENET/Gbps Ethernet support to FEC device
>>> error: patch failed: hw/net/imx_fec.c:24
>>> error: hw/net/imx_fec.c: patch does not apply
>>> Patch failed at 0009 Add ENET/Gbps Ethernet support to FEC device
>>> The copy of the patch that failed is found in: .git/rebase-apply/patch
>>> When you have resolved this problem, run "git am --continue".
>>> If you prefer to skip this patch, run "git am --skip" instead.
>>> To restore the original branch and stop patching, run "git am --abort".
>>
>> This is because of commit 03dd024ff57733a55cd2e455f361d053c81b1b29
>> "hw: explicitly include qemu/log.h" that has been applied meanwhile.
>>
>> I'll send a new version soon.
>>
>> JC
>>
>
> Thanks
>
v6 is out.
JC
^ permalink raw reply [flat|nested] 15+ messages in thread
end of thread, other threads:[~2016-05-30 17:56 UTC | newest]
Thread overview: 15+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2016-05-21 8:01 [Qemu-devel] [PATCH v5 00/10] Add Ethernet device for i.MX6 SOC Jean-Christophe Dubois
2016-05-21 8:01 ` [Qemu-devel] [PATCH v5 01/10] net: improve UDP/TCP checksum computation Jean-Christophe Dubois
2016-05-21 8:01 ` [Qemu-devel] [PATCH v5 02/10] net: handle optional VLAN header in " Jean-Christophe Dubois
2016-05-21 8:01 ` [Qemu-devel] [PATCH v5 03/10] i.MX: Fix FEC code for MDIO operation selection Jean-Christophe Dubois
2016-05-21 8:01 ` [Qemu-devel] [PATCH v5 04/10] i.MX: Fix FEC code for MDIO address selection Jean-Christophe Dubois
2016-05-21 8:01 ` [Qemu-devel] [PATCH v5 05/10] i.MX: Fix FEC code for ECR register reset value Jean-Christophe Dubois
2016-05-21 8:01 ` [Qemu-devel] [PATCH v5 06/10] i.MX: reset TX/RX descriptors when FEC is disabled Jean-Christophe Dubois
2016-05-21 8:01 ` [Qemu-devel] [PATCH v5 07/10] i.MX: Rename i.MX FEC defines to ENET_XXX Jean-Christophe Dubois
2016-05-21 8:01 ` [Qemu-devel] [PATCH v5 08/10] i.MX: move FEC device to a register array structure Jean-Christophe Dubois
2016-05-21 8:01 ` [Qemu-devel] [PATCH v5 09/10] Add ENET/Gbps Ethernet support to FEC device Jean-Christophe Dubois
2016-05-21 8:01 ` [Qemu-devel] [PATCH v5 10/10] Add ENET device to i.MX6 SOC Jean-Christophe Dubois
2016-05-30 2:19 ` [Qemu-devel] [PATCH v5 00/10] Add Ethernet device for " Jason Wang
2016-05-30 6:04 ` Jean-Christophe DUBOIS
2016-05-30 6:10 ` Jason Wang
2016-05-30 17:56 ` Jean-Christophe DUBOIS
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