[RFC PATCH] net: implement NC-SI network support
Samuel Mendoza-Jonas
sam at mendozajonas.com
Wed May 29 14:58:40 AEST 2019
This introduces support for the NC-SI protocol to u-boot, something
which so far has only been available in vendor trees.
NC-SI (Network Controller Sideband Interface) is a protocol to manage a
sideband connection to a proper network interface, for example a BMC
(Baseboard Management Controller) sharing the NIC of the host system.
Probing and configuration occurs by communicating with the "remote" NIC
via NC-SI control frames (Ethernet header 0x88f8).
This implementation is roughly based on the upstream Linux
implementation[0], with a reduced feature set and an emphasis on getting
a link up as fast as possible rather than probing the full possible
topology of the bus.
At the moment the NC-SI functionality is implemented as a phy driver,
with the ftgmac100 driver including support for using it instead of the
mdio phy (also similar to in linux). Since NC-SI configuration must be
done before any other network operation, but in it's current
implementation depends on the net_loop() infrastructure, the NC-SI
configuration is performed at the start of a call to net_loop().
There is probably a better way of fitting this in but for the moment it
makes sure that the configuration occurs at the right time.
Configuration can also be done by calling 'ncsi' directly.
There are some supporting patches related to this for full support on
the AST2x00 platforms we're targeting this for but I'm sending this up
to see if I'm on the right track for integrating this with the network
infrastructure or if there's a more elegant method.
Comments and advice very welcome!
An example of NC-SI setup before a normal network command:
=> dhcp
net_loop: configuring NCSI first
ethernet at 1e660000: link up, 100 Mbps full-duplex mac:f6:55:52:d0:4b:40
NCSI: probing channels
NCSI: configuring channel 0
NCSI: configuration done!
BOOTP broadcast 1
BOOTP broadcast 2
BOOTP broadcast 3
DHCP client bound to address 10.61.254.32 (1024 ms)
*** Warning: no boot file name; using '0A3DFE20.img'
Using ethernet at 1e660000 device
TFTP from server 10.61.2.7; our IP address is 10.61.254.32
Filename '0A3DFE20.img'.
Load address: 0x83000000
Loading: *
TFTP error: 'File not found' (1)
Not retrying...
[0] https://github.com/torvalds/linux/tree/master/net/ncsi
Signed-off-by: Samuel Mendoza-Jonas <sam at mendozajonas.com>
---
cmd/Kconfig | 6 +
cmd/net.c | 18 +
drivers/net/ftgmac100.c | 36 +-
drivers/net/phy/Kconfig | 4 +
drivers/net/phy/Makefile | 1 +
drivers/net/phy/ncsi.c | 867 +++++++++++++++++++++++++++++++++++++++
drivers/net/phy/phy.c | 7 +
include/net.h | 3 +-
include/net/ncsi-pkt.h | 415 +++++++++++++++++++
include/net/ncsi.h | 7 +
include/phy.h | 12 +
include/phy_interface.h | 2 +
net/net.c | 28 +-
13 files changed, 1394 insertions(+), 12 deletions(-)
create mode 100644 drivers/net/phy/ncsi.c
create mode 100644 include/net/ncsi-pkt.h
create mode 100644 include/net/ncsi.h
diff --git a/cmd/Kconfig b/cmd/Kconfig
index 0d36da2a5c..4a9481aee2 100644
--- a/cmd/Kconfig
+++ b/cmd/Kconfig
@@ -1332,6 +1332,12 @@ config CMD_LINK_LOCAL
help
Acquire a network IP address using the link-local protocol
+config CMD_NCSI
+ bool "ncsi"
+ depends on PHY_NCSI
+ help
+ Configure the attached NIC via NC-SI
+
endif
config CMD_ETHSW
diff --git a/cmd/net.c b/cmd/net.c
index 89721b8f8b..7d2c21ba4d 100644
--- a/cmd/net.c
+++ b/cmd/net.c
@@ -457,3 +457,21 @@ U_BOOT_CMD(
);
#endif /* CONFIG_CMD_LINK_LOCAL */
+
+#if defined(CONFIG_CMD_NCSI)
+static int do_ncsi(cmd_tbl_t *cmdtp, int flag, int argc,
+ char * const argv[])
+{
+ if (net_loop(NCSI) < 0)
+ return CMD_RET_FAILURE;
+
+ return CMD_RET_SUCCESS;
+}
+
+U_BOOT_CMD(
+ ncsi, 1, 1, do_ncsi,
+ "Configure attached NIC via NC-SI",
+ ""
+);
+
+#endif /* CONFIG_CMD_NCSI */
diff --git a/drivers/net/ftgmac100.c b/drivers/net/ftgmac100.c
index 92c38a81bd..799cb75bcf 100644
--- a/drivers/net/ftgmac100.c
+++ b/drivers/net/ftgmac100.c
@@ -18,6 +18,7 @@
#include <wait_bit.h>
#include <linux/io.h>
#include <linux/iopoll.h>
+#include <net/ncsi.h>
#include "ftgmac100.h"
@@ -81,6 +82,7 @@ struct ftgmac100_data {
struct mii_dev *bus;
u32 phy_mode;
u32 max_speed;
+ bool ncsi_mode;
struct clk_bulk clks;
@@ -181,7 +183,7 @@ static int ftgmac100_phy_adjust_link(struct ftgmac100_data *priv)
struct phy_device *phydev = priv->phydev;
u32 maccr;
- if (!phydev->link) {
+ if (!phydev->link && !priv->ncsi_mode) {
dev_err(phydev->dev, "No link\n");
return -EREMOTEIO;
}
@@ -217,7 +219,8 @@ static int ftgmac100_phy_init(struct udevice *dev)
if (!phydev)
return -ENODEV;
- phydev->supported &= PHY_GBIT_FEATURES;
+ if (!priv->ncsi_mode)
+ phydev->supported &= PHY_GBIT_FEATURES;
if (priv->max_speed) {
ret = phy_set_supported(phydev, priv->max_speed);
if (ret)
@@ -275,7 +278,8 @@ static void ftgmac100_stop(struct udevice *dev)
writel(0, &ftgmac100->maccr);
- phy_shutdown(priv->phydev);
+ if (!priv->ncsi_mode)
+ phy_shutdown(priv->phydev);
}
static int ftgmac100_start(struct udevice *dev)
@@ -513,6 +517,7 @@ static int ftgmac100_ofdata_to_platdata(struct udevice *dev)
pdata->iobase = devfdt_get_addr(dev);
pdata->phy_interface = -1;
phy_mode = dev_read_string(dev, "phy-mode");
+
if (phy_mode)
pdata->phy_interface = phy_get_interface_by_name(phy_mode);
if (pdata->phy_interface == -1) {
@@ -539,6 +544,8 @@ static int ftgmac100_probe(struct udevice *dev)
struct ftgmac100_data *priv = dev_get_priv(dev);
int ret;
+ priv->ncsi_mode = dev_read_bool(dev, "use-ncsi");
+
priv->iobase = (struct ftgmac100 *)pdata->iobase;
priv->phy_mode = pdata->phy_interface;
priv->max_speed = pdata->max_speed;
@@ -548,10 +555,15 @@ static int ftgmac100_probe(struct udevice *dev)
if (ret)
goto out;
- ret = ftgmac100_mdio_init(dev);
- if (ret) {
- dev_err(dev, "Failed to initialize mdiobus: %d\n", ret);
- goto out;
+ if (priv->ncsi_mode) {
+ printf("%s - NCSI detected\n", __func__);
+ } else {
+ ret = ftgmac100_mdio_init(dev);
+ if (ret) {
+ dev_err(dev, "Failed to initialize mdiobus: %d\n", ret);
+ goto out;
+ }
+
}
ret = ftgmac100_phy_init(dev);
@@ -571,9 +583,13 @@ static int ftgmac100_remove(struct udevice *dev)
{
struct ftgmac100_data *priv = dev_get_priv(dev);
- free(priv->phydev);
- mdio_unregister(priv->bus);
- mdio_free(priv->bus);
+ if (!priv->ncsi_mode) {
+ free(priv->phydev);
+ mdio_unregister(priv->bus);
+ mdio_free(priv->bus);
+ } else {
+ free(priv->phydev);
+ }
clk_release_bulk(&priv->clks);
return 0;
diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig
index 2a3da068c9..35d96ab34b 100644
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -238,4 +238,8 @@ config PHY_FIXED
on, the link is always up with fixed speed and fixed duplex-setting.
More information: doc/device-tree-bindings/net/fixed-link.txt
+config PHY_NCSI
+ bool "NC-SI based PHY"
+ depends on DM_ETH
+
endif #PHYLIB
diff --git a/drivers/net/phy/Makefile b/drivers/net/phy/Makefile
index 555da83630..32a8409a85 100644
--- a/drivers/net/phy/Makefile
+++ b/drivers/net/phy/Makefile
@@ -30,3 +30,4 @@ obj-$(CONFIG_PHY_XILINX) += xilinx_phy.o
obj-$(CONFIG_PHY_VITESSE) += vitesse.o
obj-$(CONFIG_PHY_MSCC) += mscc.o
obj-$(CONFIG_PHY_FIXED) += fixed.o
+obj-$(CONFIG_PHY_NCSI) += ncsi.o
diff --git a/drivers/net/phy/ncsi.c b/drivers/net/phy/ncsi.c
new file mode 100644
index 0000000000..cc4e38195f
--- /dev/null
+++ b/drivers/net/phy/ncsi.c
@@ -0,0 +1,867 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * NC-SI protocol configuration
+ *
+ * Copyright (C) 2019, IBM Corporation.
+ */
+
+#include <common.h>
+#include <malloc.h>
+#include <phy.h>
+#include <net/ncsi.h>
+#include <net/ncsi-pkt.h>
+#include <asm/unaligned.h>
+
+#define NCSI_PACKAGE_MAX 8
+#define NCSI_CHANNEL_MAX 31
+
+#define NCSI_PACKAGE_SHIFT 5
+#define NCSI_PACKAGE_INDEX(c) (((c) >> NCSI_PACKAGE_SHIFT) & 0x7)
+#define NCSI_RESERVED_CHANNEL 0x1f
+#define NCSI_CHANNEL_INDEX(c) ((c) & ((1 << NCSI_PACKAGE_SHIFT) - 1))
+#define NCSI_TO_CHANNEL(p, c) (((p) << NCSI_PACKAGE_SHIFT) | (c))
+
+#define NCSI_PKT_REVISION 0x01
+
+#define NCSI_CAP_GENERIC_MASK 0x7f
+#define NCSI_CAP_BC_MASK 0x0f
+#define NCSI_CAP_MC_MASK 0x3f
+#define NCSI_CAP_AEN_MASK 0x07
+#define NCSI_CAP_VLAN_MASK 0x07
+
+static void ncsi_send_ebf(unsigned int np, unsigned int nc);
+static void ncsi_send_ae(unsigned int np, unsigned int nc);
+static void ncsi_send_gls(unsigned int np, unsigned int nc);
+static int ncsi_send_command(unsigned int np, unsigned int nc, unsigned int cmd,
+ uchar *payload, int len, bool wait);
+
+struct ncsi_channel {
+ unsigned int id;
+ bool has_link;
+
+ /* capabilities */
+ u32 cap_generic;
+ u32 cap_bc;
+ u32 cap_mc;
+ u32 cap_buffer;
+ u32 cap_aen;
+ u32 cap_vlan;
+
+ /* version information */
+ struct {
+ u32 version; /* Supported BCD encoded NCSI version */
+ u32 alpha2; /* Supported BCD encoded NCSI version */
+ u8 fw_name[12]; /* Firware name string */
+ u32 fw_version; /* Firmware version */
+ u16 pci_ids[4]; /* PCI identification */
+ u32 mf_id; /* Manufacture ID */
+ } version;
+
+};
+
+struct ncsi_package {
+ unsigned int id;
+ unsigned int n_channels;
+ struct ncsi_channel *channels;
+};
+
+struct ncsi {
+ enum {
+ NCSI_PROBE_PACKAGE_SP,
+ NCSI_PROBE_PACKAGE_DP,
+ NCSI_PROBE_CHANNEL_SP,
+ NCSI_PROBE_CHANNEL,
+ NCSI_CONFIG,
+ } state;
+
+ unsigned int pending_requests;
+ unsigned int requests[256];
+ unsigned int last_request;
+
+ unsigned int current_package;
+ unsigned int current_channel;
+
+ unsigned int n_packages;
+ struct ncsi_package *packages;
+};
+
+struct ncsi *ncsi_priv;
+
+unsigned int cmd_payload(int cmd)
+{
+ switch (cmd) {
+ case NCSI_PKT_CMD_CIS:
+ return 0;
+ case NCSI_PKT_CMD_SP:
+ return 4;
+ case NCSI_PKT_CMD_DP:
+ return 0;
+ case NCSI_PKT_CMD_EC:
+ return 0;
+ case NCSI_PKT_CMD_DC:
+ return 4;
+ case NCSI_PKT_CMD_RC:
+ return 4;
+ case NCSI_PKT_CMD_ECNT:
+ return 0;
+ case NCSI_PKT_CMD_DCNT:
+ return 0;
+ case NCSI_PKT_CMD_AE:
+ return 8;
+ case NCSI_PKT_CMD_SL:
+ return 8;
+ case NCSI_PKT_CMD_GLS:
+ return 0;
+ case NCSI_PKT_CMD_SVF:
+ return 8;
+ case NCSI_PKT_CMD_EV:
+ return 4;
+ case NCSI_PKT_CMD_DV:
+ return 0;
+ case NCSI_PKT_CMD_SMA:
+ return 8;
+ case NCSI_PKT_CMD_EBF:
+ return 4;
+ case NCSI_PKT_CMD_DBF:
+ return 0;
+ case NCSI_PKT_CMD_EGMF:
+ return 4;
+ case NCSI_PKT_CMD_DGMF:
+ return 0;
+ case NCSI_PKT_CMD_SNFC:
+ return 4;
+ case NCSI_PKT_CMD_GVI:
+ return 0;
+ case NCSI_PKT_CMD_GC:
+ return 0;
+ case NCSI_PKT_CMD_GP:
+ return 0;
+ case NCSI_PKT_CMD_GCPS:
+ return 0;
+ case NCSI_PKT_CMD_GNS:
+ return 0;
+ case NCSI_PKT_CMD_GNPTS:
+ return 0;
+ case NCSI_PKT_CMD_GPS:
+ return 0;
+ default:
+ printf("NCSI: Unknown command 0x%02x\n", cmd);
+ return 0;
+ }
+}
+
+static u32 ncsi_calculate_checksum(unsigned char *data, int len)
+{
+ u32 checksum = 0;
+ int i;
+
+ for (i = 0; i < len; i += 2)
+ checksum += (((u32)data[i] << 8) | data[i + 1]);
+
+ checksum = (~checksum + 1);
+ return checksum;
+}
+
+static int ncsi_validate_rsp(struct ncsi_rsp_pkt *pkt, int payload)
+{
+ struct ncsi_rsp_pkt_hdr *hdr = &pkt->rsp;
+ __be32 pchecksum;
+ u32 checksum;
+
+ if (hdr->common.revision != 1) {
+ printf("NCSI: 0x%02x response has unsupported revision 0x%x\n",
+ hdr->common.type, hdr->common.revision);
+ return -1;
+ }
+
+ if (hdr->code != 0) {
+ printf("NCSI: 0x%02x response returns error %d\n",
+ hdr->common.type, __be16_to_cpu(hdr->code));
+ if (ntohs(hdr->reason) == 0x05)
+ printf("(Invalid command length)\n");
+ return -1;
+ }
+
+ if (ntohs(hdr->common.length) != payload) {
+ printf("NCSI: 0x%02x response has incorrect length %d\n",
+ hdr->common.type, hdr->common.length);
+ return -1;
+ }
+
+ pchecksum = get_unaligned_be32((void *)(hdr + 1) + payload - 4);
+ if (pchecksum != 0) {
+ checksum = ncsi_calculate_checksum((unsigned char *)hdr,
+ sizeof(*hdr) + payload - 4);
+ if (pchecksum != checksum) {
+ printf("NCSI: 0x%02x response has invalid checksum\n",
+ hdr->common.type);
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+static void ncsi_rsp_ec(struct ncsi_rsp_pkt *pkt)
+{
+ struct ncsi_rsp_pkt_hdr *rsp = (struct ncsi_rsp_pkt_hdr *)&pkt->rsp;
+ unsigned int np, nc;
+
+ np = NCSI_PACKAGE_INDEX(rsp->common.channel);
+ nc = NCSI_CHANNEL_INDEX(rsp->common.channel);
+
+ if (ncsi_priv->packages[np].channels[nc].cap_aen != 0)
+ ncsi_send_ae(np, nc);
+ /* else, done */
+}
+
+static void ncsi_rsp_ecnt(struct ncsi_rsp_pkt *pkt)
+{
+ struct ncsi_rsp_pkt_hdr *rsp = (struct ncsi_rsp_pkt_hdr *)&pkt->rsp;
+ unsigned int np, nc;
+
+ np = NCSI_PACKAGE_INDEX(rsp->common.channel);
+ nc = NCSI_CHANNEL_INDEX(rsp->common.channel);
+
+ ncsi_send_command(np, nc, NCSI_PKT_CMD_EC, NULL, 0, true);
+}
+
+static void ncsi_rsp_ebf(struct ncsi_rsp_pkt *pkt)
+{
+ struct ncsi_rsp_pkt_hdr *rsp = (struct ncsi_rsp_pkt_hdr *)&pkt->rsp;
+ unsigned int np, nc;
+
+ np = NCSI_PACKAGE_INDEX(rsp->common.channel);
+ nc = NCSI_CHANNEL_INDEX(rsp->common.channel);
+
+ ncsi_send_command(np, nc, NCSI_PKT_CMD_ECNT, NULL, 0, true);
+}
+
+static void ncsi_rsp_sma(struct ncsi_rsp_pkt *pkt)
+{
+ struct ncsi_rsp_pkt_hdr *rsp = (struct ncsi_rsp_pkt_hdr *)&pkt->rsp;
+ unsigned int np, nc;
+
+ np = NCSI_PACKAGE_INDEX(rsp->common.channel);
+ nc = NCSI_CHANNEL_INDEX(rsp->common.channel);
+
+ ncsi_send_ebf(np, nc);
+}
+
+static void ncsi_rsp_gc(struct ncsi_rsp_pkt *pkt)
+{
+ struct ncsi_rsp_gc_pkt *gc = (struct ncsi_rsp_gc_pkt *)pkt;
+ struct ncsi_rsp_pkt_hdr *rsp = (struct ncsi_rsp_pkt_hdr *)&gc->rsp;
+ struct ncsi_channel *c;
+ unsigned int np, nc;
+
+ np = NCSI_PACKAGE_INDEX(rsp->common.channel);
+ nc = NCSI_CHANNEL_INDEX(rsp->common.channel);
+
+ if (np >= ncsi_priv->n_packages ||
+ nc >= ncsi_priv->packages[np].n_channels) {
+ printf("NCSI: Invalid package / channel (0x%02x, 0x%02x)\n",
+ np, nc);
+ return;
+ }
+
+ c = &ncsi_priv->packages[np].channels[nc];
+ c->cap_generic = ntohl(gc->cap) & NCSI_CAP_GENERIC_MASK;
+ c->cap_bc = ntohl(gc->bc_cap) & NCSI_CAP_BC_MASK;
+ c->cap_mc = ntohl(gc->mc_cap) & NCSI_CAP_MC_MASK;
+ c->cap_aen = ntohl(gc->aen_cap) & NCSI_CAP_AEN_MASK;
+ c->cap_vlan = ntohl(gc->vlan_mode) & NCSI_CAP_VLAN_MASK;
+
+ /* End of probe for this channel */
+}
+
+static void ncsi_rsp_gvi(struct ncsi_rsp_pkt *pkt)
+{
+ struct ncsi_rsp_gvi_pkt *gvi = (struct ncsi_rsp_gvi_pkt *)pkt;
+ struct ncsi_rsp_pkt_hdr *rsp = (struct ncsi_rsp_pkt_hdr *)&gvi->rsp;
+ struct ncsi_channel *c;
+ unsigned int np, nc, i;
+
+ np = NCSI_PACKAGE_INDEX(rsp->common.channel);
+ nc = NCSI_CHANNEL_INDEX(rsp->common.channel);
+
+ if (np >= ncsi_priv->n_packages ||
+ nc >= ncsi_priv->packages[np].n_channels) {
+ printf("NCSI: Invalid package / channel (0x%02x, 0x%02x)\n",
+ np, nc);
+ return;
+ }
+
+ c = &ncsi_priv->packages[np].channels[nc];
+ c->version.version = get_unaligned_be32(&gvi->ncsi_version);
+ c->version.alpha2 = gvi->alpha2;
+ memcpy(c->version.fw_name, gvi->fw_name, sizeof(c->version.fw_name));
+ c->version.fw_version = get_unaligned_be32(&gvi->fw_version);
+ for (i = 0; i < ARRAY_SIZE(c->version.pci_ids); i++)
+ c->version.pci_ids[i] = get_unaligned_be16(gvi->pci_ids + i);
+ c->version.mf_id = get_unaligned_be32(&gvi->mf_id);
+
+ if (ncsi_priv->state == NCSI_PROBE_CHANNEL)
+ ncsi_send_command(np, nc, NCSI_PKT_CMD_GC, NULL, 0, true);
+}
+
+static void ncsi_rsp_gls(struct ncsi_rsp_pkt *pkt)
+{
+ struct ncsi_rsp_gls_pkt *gls = (struct ncsi_rsp_gls_pkt *)pkt;
+ struct ncsi_rsp_pkt_hdr *rsp = (struct ncsi_rsp_pkt_hdr *)&gls->rsp;
+ unsigned int np, nc;
+
+ np = NCSI_PACKAGE_INDEX(rsp->common.channel);
+ nc = NCSI_CHANNEL_INDEX(rsp->common.channel);
+
+ if (np >= ncsi_priv->n_packages ||
+ nc >= ncsi_priv->packages[np].n_channels) {
+ printf("NCSI: Invalid package / channel (0x%02x, 0x%02x)\n",
+ np, nc);
+ return;
+ }
+
+ ncsi_priv->packages[np].channels[nc].has_link =
+ !!(get_unaligned_be32(&gls->status));
+
+ if (ncsi_priv->state == NCSI_PROBE_CHANNEL)
+ ncsi_send_command(np, nc, NCSI_PKT_CMD_GVI, NULL, 0, true);
+}
+
+static void ncsi_rsp_cis(struct ncsi_rsp_pkt *pkt)
+{
+ struct ncsi_rsp_pkt_hdr *rsp = (struct ncsi_rsp_pkt_hdr *)pkt;
+ struct ncsi_package *package;
+ unsigned int np, nc;
+
+ np = NCSI_PACKAGE_INDEX(rsp->common.channel);
+ nc = NCSI_CHANNEL_INDEX(rsp->common.channel);
+
+ if (np >= ncsi_priv->n_packages) {
+ printf("NCSI: Mystery package 0x%02x from CIS\n", np);
+ return;
+ }
+
+ package = &ncsi_priv->packages[np];
+
+ if (nc < package->n_channels) {
+ /*
+ * This is fine in general but in the current design we
+ * don't send CIS commands to known channels.
+ */
+ debug("NCSI: Duplicate channel 0x%02x\n", nc);
+ return;
+ }
+
+ package->channels = realloc(package->channels,
+ sizeof(struct ncsi_channel) * (package->n_channels + 1));
+ if (!package->channels) {
+ printf("NCSI: Could not allocate memory for new channel\n");
+ return;
+ }
+
+ debug("NCSI: New channel 0x%02x\n", nc);
+
+ package->channels[nc].id = nc;
+ package->channels[nc].has_link = false;
+ package->n_channels++;
+
+ ncsi_send_gls(np, nc);
+}
+
+static void ncsi_rsp_dp(struct ncsi_rsp_pkt *pkt)
+{
+ struct ncsi_rsp_pkt_hdr *rsp = (struct ncsi_rsp_pkt_hdr *)pkt;
+ unsigned int np;
+
+ /* No action needed */
+
+ np = NCSI_PACKAGE_INDEX(rsp->common.channel);
+ if (np >= ncsi_priv->n_packages) {
+ debug("NCSI: DP response from unknown package %d\n", np);
+ }
+}
+
+static void ncsi_rsp_sp(struct ncsi_rsp_pkt *pkt)
+{
+ struct ncsi_rsp_pkt_hdr *rsp = (struct ncsi_rsp_pkt_hdr *)pkt;
+ unsigned int np;
+
+ np = NCSI_PACKAGE_INDEX(rsp->common.channel);
+
+ if (np < ncsi_priv->n_packages) {
+ /* Already know about this package */
+ debug("NCSI: package 0x%02x selected\n", np);
+ return;
+ }
+
+ debug("NCSI: adding new package %d\n", np);
+
+ ncsi_priv->packages = realloc(ncsi_priv->packages,
+ sizeof(struct ncsi_package) * (ncsi_priv->n_packages + 1));
+ if (!ncsi_priv->packages) {
+ printf("NCSI: could not allocate memory for new package\n");
+ return;
+ }
+
+ ncsi_priv->packages[np].id = np;
+ ncsi_priv->packages[np].n_channels = 0;
+ ncsi_priv->packages[np].channels = NULL;
+ ncsi_priv->n_packages++;
+}
+
+static void ncsi_update_state(struct ncsi_rsp_pkt_hdr *nh)
+{
+ bool timeout = nh == NULL;
+ int np, nc;
+
+ switch (ncsi_priv->state) {
+ case NCSI_PROBE_PACKAGE_SP:
+ if (!timeout &&
+ ncsi_priv->current_package + 1 < NCSI_PACKAGE_MAX) {
+ ncsi_priv->current_package++;
+ } else {
+ ncsi_priv->state = NCSI_PROBE_PACKAGE_DP;
+ ncsi_priv->current_package = 0;
+ }
+ return ncsi_probe_packages();
+ case NCSI_PROBE_PACKAGE_DP:
+ if (ncsi_priv->current_package + 1 < ncsi_priv->n_packages &&
+ !timeout) {
+ ncsi_priv->current_package++;
+ } else {
+ if (!ncsi_priv->n_packages) {
+ printf("NCSI: no packages found\n");
+ net_set_state(NETLOOP_FAIL);
+ return;
+ }
+ printf("NCSI: probing channels\n");
+ ncsi_priv->state = NCSI_PROBE_CHANNEL_SP;
+ ncsi_priv->current_package = 0;
+ ncsi_priv->current_channel = 0;
+ }
+ return ncsi_probe_packages();
+ case NCSI_PROBE_CHANNEL_SP:
+ if (!timeout && nh->common.type == NCSI_PKT_RSP_SP) {
+ ncsi_priv->state = NCSI_PROBE_CHANNEL;
+ return ncsi_probe_packages();
+ }
+ printf("NCSI: failed to select package 0x%0x2 or timeout\n",
+ ncsi_priv->current_package);
+ net_set_state(NETLOOP_FAIL);
+ break;
+ case NCSI_PROBE_CHANNEL:
+ // TODO only does package 0 for now
+ if (ncsi_priv->pending_requests == 0) {
+ np = ncsi_priv->current_package;
+ nc = ncsi_priv->current_channel;
+
+ /* Configure first channel that has link */
+ if (ncsi_priv->packages[np].channels[nc].has_link)
+ ncsi_priv->state = NCSI_CONFIG;
+ else if (ncsi_priv->current_channel + 1 < NCSI_CHANNEL_MAX)
+ ncsi_priv->current_channel++;
+ else {
+ // XXX As above only package 0
+ printf("NCSI: no channel found with link\n");
+ net_set_state(NETLOOP_FAIL);
+ return;
+ }
+ return ncsi_probe_packages();
+ }
+ break;
+ case NCSI_CONFIG:
+ if (ncsi_priv->pending_requests == 0) {
+ printf("NCSI: configuration done!\n");
+ net_set_state(NETLOOP_SUCCESS);
+ } else if (timeout) {
+ printf("NCSI: timeout during configure\n");
+ net_set_state(NETLOOP_FAIL);
+ }
+ break;
+ default:
+ printf("NCSI: something went very wrong, nevermind\n");
+ net_set_state(NETLOOP_FAIL);
+ break;
+ }
+}
+
+static void ncsi_timeout_handler(void)
+{
+ if (ncsi_priv->pending_requests)
+ ncsi_priv->pending_requests--;
+
+ ncsi_update_state(NULL);
+}
+
+static int ncsi_send_command(unsigned int np, unsigned int nc, unsigned int cmd,
+ uchar *payload, int len, bool wait)
+{
+ struct ncsi_pkt_hdr *hdr;
+ __be32 *pchecksum;
+ int eth_hdr_size;
+ u32 checksum;
+ uchar *pkt, *start;
+ int final_len;
+
+ start = pkt = calloc(1, PKTSIZE_ALIGN + PKTALIGN);
+ if (!pkt)
+ return -ENOMEM;
+
+ eth_hdr_size = net_set_ether(pkt, net_bcast_ethaddr, PROT_NCSI);
+ pkt += eth_hdr_size;
+
+ /* Set NCSI command header fields */
+ hdr = (struct ncsi_pkt_hdr *)pkt;
+ hdr->mc_id = 0;
+ hdr->revision = NCSI_PKT_REVISION;
+ hdr->id = ++ncsi_priv->last_request;
+ ncsi_priv->requests[ncsi_priv->last_request] = 1;
+ hdr->type = cmd;
+ hdr->channel = NCSI_TO_CHANNEL(np, nc);
+ hdr->length = htons(len);
+
+ if (payload && len)
+ memcpy(pkt + sizeof(struct ncsi_pkt_hdr), payload, len);
+
+ /* Calculate checksum */
+ checksum = ncsi_calculate_checksum((unsigned char *)hdr,
+ sizeof(*hdr) + len);
+ pchecksum = (__be32 *)((void *)(hdr + 1) + len);
+ put_unaligned_be32(htonl(checksum), pchecksum);
+
+ if (wait) {
+ net_set_timeout_handler(1000UL, ncsi_timeout_handler);
+ ncsi_priv->pending_requests++;
+ }
+
+ if (len < 26)
+ len = 26;
+ /* frame header, packet header, payload, checksum */
+ final_len = eth_hdr_size + sizeof(struct ncsi_cmd_pkt_hdr) + len + 4;
+
+ net_send_packet(start, final_len);
+ free(start);
+ return 0;
+}
+
+static void ncsi_handle_aen(struct ip_udp_hdr *ip, unsigned int len)
+{
+ struct ncsi_aen_pkt_hdr *hdr = (struct ncsi_aen_pkt_hdr *)ip;
+ int payload, i;
+ __be32 pchecksum;
+ u32 checksum;
+
+ switch (hdr->type) {
+ case NCSI_PKT_AEN_LSC:
+ printf("NCSI: link state changed\n");
+ payload = 12;
+ break;
+ case NCSI_PKT_AEN_CR:
+ printf("NCSI: re-configuration required\n");
+ payload = 4;
+ break;
+ case NCSI_PKT_AEN_HNCDSC:
+ /* Host notifcation - N/A but weird */
+ debug("NCSI: HNCDSC AEN received\n");
+ return;
+ default:
+ printf("%s: Invalid type 0x%02x\n", __func__, hdr->type);
+ return;
+ }
+
+ /* Validate packet */
+ if (hdr->common.revision != 1) {
+ printf("NCSI: 0x%02x response has unsupported revision 0x%x\n",
+ hdr->common.type, hdr->common.revision);
+ return;
+ }
+
+ if (ntohs(hdr->common.length) != payload) {
+ printf("NCSI: 0x%02x response has incorrect length %d\n",
+ hdr->common.type, hdr->common.length);
+ return;
+ }
+
+ pchecksum = get_unaligned_be32((void *)(hdr + 1) + payload - 4);
+ if (pchecksum != 0) {
+ checksum = ncsi_calculate_checksum((unsigned char *)hdr,
+ sizeof(*hdr) + payload - 4);
+ if (pchecksum != checksum) {
+ printf("NCSI: 0x%02x response has invalid checksum\n",
+ hdr->common.type);
+ return;
+ }
+ }
+
+ /* Link or configuration lost - just redo the discovery process */
+ ncsi_priv->state = NCSI_PROBE_PACKAGE_SP;
+ for (i = 0; i < ncsi_priv->n_packages; i++)
+ free(ncsi_priv->packages[i].channels);
+ free(ncsi_priv->packages);
+ ncsi_priv->n_packages = 0;
+
+ ncsi_priv->current_package = NCSI_PACKAGE_MAX;
+ ncsi_priv->current_channel = NCSI_CHANNEL_MAX;
+
+ ncsi_probe_packages();
+}
+
+void ncsi_receive(struct ethernet_hdr *et, struct ip_udp_hdr *ip,
+ unsigned int len)
+{
+ struct ncsi_rsp_pkt *pkt = (struct ncsi_rsp_pkt *)ip;
+ struct ncsi_rsp_pkt_hdr *nh = (struct ncsi_rsp_pkt_hdr *)&pkt->rsp;
+ void (*handler)(struct ncsi_rsp_pkt *pkt) = NULL;
+ unsigned short payload;
+
+ if (ncsi_priv->pending_requests)
+ ncsi_priv->pending_requests--;
+
+ if (len < sizeof(struct ncsi_rsp_pkt_hdr)) {
+ printf("NCSI: undersized packet: %u bytes\n", len);
+ goto out;
+ }
+
+ if (nh->common.type == NCSI_PKT_AEN)
+ return ncsi_handle_aen(ip, len);
+
+ switch (nh->common.type) {
+ case NCSI_PKT_RSP_SP:
+ payload = 4;
+ handler = ncsi_rsp_sp;
+ break;
+ case NCSI_PKT_RSP_DP:
+ payload = 4;
+ handler = ncsi_rsp_dp;
+ break;
+ case NCSI_PKT_RSP_CIS:
+ payload = 4;
+ handler = ncsi_rsp_cis;
+ break;
+ case NCSI_PKT_RSP_GLS:
+ payload = 16;
+ handler = ncsi_rsp_gls;
+ break;
+ case NCSI_PKT_RSP_GVI:
+ payload = 40;
+ handler = ncsi_rsp_gvi;
+ break;
+ case NCSI_PKT_RSP_GC:
+ payload = 32;
+ handler = ncsi_rsp_gc;
+ break;
+ case NCSI_PKT_RSP_SMA:
+ payload = 4;
+ handler = ncsi_rsp_sma;
+ break;
+ case NCSI_PKT_RSP_EBF:
+ payload = 4;
+ handler = ncsi_rsp_ebf;
+ break;
+ case NCSI_PKT_RSP_ECNT:
+ payload = 4;
+ handler = ncsi_rsp_ecnt;
+ break;
+ case NCSI_PKT_RSP_EC:
+ payload = 4;
+ handler = ncsi_rsp_ec;
+ break;
+ case NCSI_PKT_RSP_AE:
+ payload = 4;
+ handler = NULL;
+ break;
+ default:
+ printf("NCSI: unsupported packet type 0x%02x\n",
+ nh->common.type);
+ goto out;
+ }
+
+ if (ncsi_validate_rsp(pkt, payload) != 0) {
+ printf("NCSI: discarding invalid packet of type 0x%02x\n",
+ nh->common.type);
+ goto out;
+ }
+
+ if (handler)
+ handler(pkt);
+out:
+ ncsi_update_state(nh);
+}
+
+static void ncsi_send_sp(unsigned int np)
+{
+ uchar payload[4] = {0};
+
+ ncsi_send_command(np, NCSI_RESERVED_CHANNEL, NCSI_PKT_CMD_SP,
+ (unsigned char *)&payload,
+ cmd_payload(NCSI_PKT_CMD_SP), true);
+}
+
+static void ncsi_send_dp(unsigned int np)
+{
+ ncsi_send_command(np, NCSI_RESERVED_CHANNEL, NCSI_PKT_CMD_DP, NULL, 0,
+ true);
+}
+
+static void ncsi_send_gls(unsigned int np, unsigned int nc)
+{
+ ncsi_send_command(np, nc, NCSI_PKT_CMD_GLS, NULL, 0, true);
+}
+
+static void ncsi_send_cis(unsigned int np, unsigned int nc)
+{
+ ncsi_send_command(np, nc, NCSI_PKT_CMD_CIS, NULL, 0, true);
+}
+
+static void ncsi_send_ae(unsigned int np, unsigned int nc)
+{
+ struct ncsi_cmd_ae_pkt cmd;
+
+ memset(&cmd, 0, sizeof(cmd));
+ cmd.mode = htonl(ncsi_priv->packages[np].channels[nc].cap_aen);
+
+ ncsi_send_command(np, nc, NCSI_PKT_CMD_AE,
+ ((unsigned char *)&cmd) + sizeof(struct ncsi_cmd_pkt_hdr),
+ cmd_payload(NCSI_PKT_CMD_AE), true);
+}
+
+static void ncsi_send_ebf(unsigned int np, unsigned int nc)
+{
+ struct ncsi_cmd_ebf_pkt cmd;
+
+ memset(&cmd, 0, sizeof(cmd));
+ cmd.mode = htonl(ncsi_priv->packages[np].channels[nc].cap_bc);
+
+ ncsi_send_command(np, nc, NCSI_PKT_CMD_EBF,
+ ((unsigned char *)&cmd) + sizeof(struct ncsi_cmd_pkt_hdr),
+ cmd_payload(NCSI_PKT_CMD_EBF), true);
+}
+
+static void ncsi_send_sma(unsigned int np, unsigned int nc)
+{
+ struct ncsi_cmd_sma_pkt cmd;
+ unsigned char *addr;
+
+ addr = eth_get_ethaddr();
+ if (!addr) {
+ printf("NCSI: no MAC address configured\n");
+ return;
+ }
+
+ memset(&cmd, 0, sizeof(cmd));
+ memcpy(cmd.mac, addr, 6);
+ cmd.index = 1;
+ cmd.at_e = 1;
+
+ ncsi_send_command(np, nc, NCSI_PKT_CMD_SMA,
+ ((unsigned char *)&cmd) + sizeof(struct ncsi_cmd_pkt_hdr),
+ cmd_payload(NCSI_PKT_CMD_SMA), true);
+}
+
+void ncsi_probe_packages(void)
+{
+ struct ncsi_package *package;
+ unsigned int np, nc;
+
+ switch (ncsi_priv->state) {
+ case NCSI_PROBE_PACKAGE_SP:
+ if (ncsi_priv->current_package == NCSI_PACKAGE_MAX)
+ ncsi_priv->current_package = 0;
+ ncsi_send_sp(ncsi_priv->current_package);
+ break;
+ case NCSI_PROBE_PACKAGE_DP:
+ ncsi_send_dp(ncsi_priv->current_package);
+ break;
+ case NCSI_PROBE_CHANNEL_SP:
+ if (ncsi_priv->n_packages > 0)
+ ncsi_send_sp(ncsi_priv->current_package);
+ else
+ printf("NCSI: no packages discovered, configuration not possible\n");
+ break;
+ case NCSI_PROBE_CHANNEL:
+ /* Kicks off chain of channel discovery */
+ ncsi_send_cis(ncsi_priv->current_package,
+ ncsi_priv->current_channel);
+ break;
+ case NCSI_CONFIG:
+ for (np = 0; np < ncsi_priv->n_packages; np++) {
+ package = &ncsi_priv->packages[np];
+ for (nc = 0; nc < package->n_channels; nc++)
+ if (package->channels[nc].has_link)
+ break;
+ if (nc < package->n_channels)
+ break;
+ }
+ if (np == ncsi_priv->n_packages) {
+ printf("NCSI: no link available\n");
+ return;
+ }
+
+ printf("NCSI: configuring channel %d\n", nc);
+ ncsi_priv->current_package = np;
+ ncsi_priv->current_channel = nc;
+ /* Kicks off rest of configure chain */
+ ncsi_send_sma(np, nc);
+ break;
+ default:
+ printf("NCSI: unknown state 0x%x\n", ncsi_priv->state);
+ }
+}
+
+int ncsi_probe(struct phy_device *phydev)
+{
+ // TODO Associate per device
+ if (!ncsi_priv) {
+ ncsi_priv = malloc(sizeof(struct ncsi));
+ if (!ncsi_priv)
+ return -ENOMEM;
+ memset(ncsi_priv, 0, sizeof(struct ncsi));
+ }
+
+ phydev->priv = ncsi_priv;
+
+ return 0;
+}
+
+int ncsi_startup(struct phy_device *phydev)
+{
+ /* set phydev parameters */
+ phydev->speed = SPEED_100;
+ phydev->duplex = DUPLEX_FULL;
+
+ /* Set initial probe state */
+ ncsi_priv->state = NCSI_PROBE_PACKAGE_SP;
+
+ /* No active package/channel yet */
+ ncsi_priv->current_package = NCSI_PACKAGE_MAX;
+ ncsi_priv->current_channel = NCSI_CHANNEL_MAX;
+
+ /* Pretend link works so ftgmac100 sets final bits up */
+ phydev->link = true;
+
+ return 0;
+}
+
+int ncsi_shutdown(struct phy_device *phydev)
+{
+ printf("NCSI: Disabling package %d\n", ncsi_priv->current_package);
+ ncsi_send_dp(ncsi_priv->current_package);
+ return 0;
+}
+
+static struct phy_driver ncsi_driver = {
+ .uid = PHY_NCSI_ID,
+ .mask = 0xffffffff,
+ .name = "NC-SI",
+ .features = PHY_100BT_FEATURES | PHY_DEFAULT_FEATURES | SUPPORTED_100baseT_Full | SUPPORTED_MII,
+ .probe = ncsi_probe,
+ .startup = ncsi_startup,
+ .shutdown = ncsi_shutdown,
+};
+
+int phy_ncsi_init(void)
+{
+ phy_register(&ncsi_driver);
+ return 0;
+}
diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index c1c1af9abd..dc68f25ebf 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -539,6 +539,9 @@ int phy_init(void)
#endif
#ifdef CONFIG_PHY_FIXED
phy_fixed_init();
+#endif
+#ifdef CONFIG_PHY_NCSI
+ phy_ncsi_init();
#endif
return 0;
}
@@ -947,6 +950,10 @@ struct phy_device *phy_connect(struct mii_dev *bus, int addr,
phydev = phy_connect_fixed(bus, dev, interface);
#endif
+#ifdef CONFIG_PHY_NCSI
+ phydev = phy_device_create(bus, 0, PHY_NCSI_ID, false, interface);
+#endif
+
if (!phydev)
phydev = phy_find_by_mask(bus, mask, interface);
diff --git a/include/net.h b/include/net.h
index 44b32385c4..d6157f1456 100644
--- a/include/net.h
+++ b/include/net.h
@@ -343,6 +343,7 @@ struct vlan_ethernet_hdr {
#define PROT_VLAN 0x8100 /* IEEE 802.1q protocol */
#define PROT_IPV6 0x86dd /* IPv6 over bluebook */
#define PROT_PPP_SES 0x8864 /* PPPoE session messages */
+#define PROT_NCSI 0x88f8 /* NC-SI control packets */
#define IPPROTO_ICMP 1 /* Internet Control Message Protocol */
#define IPPROTO_UDP 17 /* User Datagram Protocol */
@@ -530,7 +531,7 @@ extern int net_restart_wrap; /* Tried all network devices */
enum proto_t {
BOOTP, RARP, ARP, TFTPGET, DHCP, PING, DNS, NFS, CDP, NETCONS, SNTP,
- TFTPSRV, TFTPPUT, LINKLOCAL, FASTBOOT, WOL
+ TFTPSRV, TFTPPUT, LINKLOCAL, FASTBOOT, WOL, NCSI
};
extern char net_boot_file_name[1024];/* Boot File name */
diff --git a/include/net/ncsi-pkt.h b/include/net/ncsi-pkt.h
new file mode 100644
index 0000000000..91b4b66438
--- /dev/null
+++ b/include/net/ncsi-pkt.h
@@ -0,0 +1,415 @@
+/*
+ * Copyright Gavin Shan, IBM Corporation 2016.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef __NCSI_PKT_H__
+#define __NCSI_PKT_H__
+
+struct ncsi_pkt_hdr {
+ unsigned char mc_id; /* Management controller ID */
+ unsigned char revision; /* NCSI version - 0x01 */
+ unsigned char reserved; /* Reserved */
+ unsigned char id; /* Packet sequence number */
+ unsigned char type; /* Packet type */
+ unsigned char channel; /* Network controller ID */
+ __be16 length; /* Payload length */
+ __be32 reserved1[2]; /* Reserved */
+};
+
+struct ncsi_cmd_pkt_hdr {
+ struct ncsi_pkt_hdr common; /* Common NCSI packet header */
+};
+
+struct ncsi_rsp_pkt_hdr {
+ struct ncsi_pkt_hdr common; /* Common NCSI packet header */
+ __be16 code; /* Response code */
+ __be16 reason; /* Response reason */
+};
+
+struct ncsi_aen_pkt_hdr {
+ struct ncsi_pkt_hdr common; /* Common NCSI packet header */
+ unsigned char reserved2[3]; /* Reserved */
+ unsigned char type; /* AEN packet type */
+};
+
+/* NCSI common command packet */
+struct ncsi_cmd_pkt {
+ struct ncsi_cmd_pkt_hdr cmd; /* Command header */
+ __be32 checksum; /* Checksum */
+ unsigned char pad[26];
+};
+
+struct ncsi_rsp_pkt {
+ struct ncsi_rsp_pkt_hdr rsp; /* Response header */
+ __be32 checksum; /* Checksum */
+ unsigned char pad[22];
+};
+
+/* Select Package */
+struct ncsi_cmd_sp_pkt {
+ struct ncsi_cmd_pkt_hdr cmd; /* Command header */
+ unsigned char reserved[3]; /* Reserved */
+ unsigned char hw_arbitration; /* HW arbitration */
+ __be32 checksum; /* Checksum */
+ unsigned char pad[22];
+};
+
+/* Disable Channel */
+struct ncsi_cmd_dc_pkt {
+ struct ncsi_cmd_pkt_hdr cmd; /* Command header */
+ unsigned char reserved[3]; /* Reserved */
+ unsigned char ald; /* Allow link down */
+ __be32 checksum; /* Checksum */
+ unsigned char pad[22];
+};
+
+/* Reset Channel */
+struct ncsi_cmd_rc_pkt {
+ struct ncsi_cmd_pkt_hdr cmd; /* Command header */
+ __be32 reserved; /* Reserved */
+ __be32 checksum; /* Checksum */
+ unsigned char pad[22];
+};
+
+/* AEN Enable */
+struct ncsi_cmd_ae_pkt {
+ struct ncsi_cmd_pkt_hdr cmd; /* Command header */
+ unsigned char reserved[3]; /* Reserved */
+ unsigned char mc_id; /* MC ID */
+ __be32 mode; /* AEN working mode */
+ __be32 checksum; /* Checksum */
+ unsigned char pad[18];
+};
+
+/* Set Link */
+struct ncsi_cmd_sl_pkt {
+ struct ncsi_cmd_pkt_hdr cmd; /* Command header */
+ __be32 mode; /* Link working mode */
+ __be32 oem_mode; /* OEM link mode */
+ __be32 checksum; /* Checksum */
+ unsigned char pad[18];
+};
+
+/* Set VLAN Filter */
+struct ncsi_cmd_svf_pkt {
+ struct ncsi_cmd_pkt_hdr cmd; /* Command header */
+ __be16 reserved; /* Reserved */
+ __be16 vlan; /* VLAN ID */
+ __be16 reserved1; /* Reserved */
+ unsigned char index; /* VLAN table index */
+ unsigned char enable; /* Enable or disable */
+ __be32 checksum; /* Checksum */
+ unsigned char pad[18];
+};
+
+/* Enable VLAN */
+struct ncsi_cmd_ev_pkt {
+ struct ncsi_cmd_pkt_hdr cmd; /* Command header */
+ unsigned char reserved[3]; /* Reserved */
+ unsigned char mode; /* VLAN filter mode */
+ __be32 checksum; /* Checksum */
+ unsigned char pad[22];
+};
+
+/* Set MAC Address */
+struct ncsi_cmd_sma_pkt {
+ struct ncsi_cmd_pkt_hdr cmd; /* Command header */
+ unsigned char mac[6]; /* MAC address */
+ unsigned char index; /* MAC table index */
+ unsigned char at_e; /* Addr type and operation */
+ __be32 checksum; /* Checksum */
+ unsigned char pad[18];
+};
+
+/* Enable Broadcast Filter */
+struct ncsi_cmd_ebf_pkt {
+ struct ncsi_cmd_pkt_hdr cmd; /* Command header */
+ __be32 mode; /* Filter mode */
+ __be32 checksum; /* Checksum */
+ unsigned char pad[22];
+};
+
+/* Enable Global Multicast Filter */
+struct ncsi_cmd_egmf_pkt {
+ struct ncsi_cmd_pkt_hdr cmd; /* Command header */
+ __be32 mode; /* Global MC mode */
+ __be32 checksum; /* Checksum */
+ unsigned char pad[22];
+};
+
+/* Set NCSI Flow Control */
+struct ncsi_cmd_snfc_pkt {
+ struct ncsi_cmd_pkt_hdr cmd; /* Command header */
+ unsigned char reserved[3]; /* Reserved */
+ unsigned char mode; /* Flow control mode */
+ __be32 checksum; /* Checksum */
+ unsigned char pad[22];
+};
+
+/* Get Link Status */
+struct ncsi_rsp_gls_pkt {
+ struct ncsi_rsp_pkt_hdr rsp; /* Response header */
+ __be32 status; /* Link status */
+ __be32 other; /* Other indications */
+ __be32 oem_status; /* OEM link status */
+ __be32 checksum;
+ unsigned char pad[10];
+};
+
+/* Get Version ID */
+struct ncsi_rsp_gvi_pkt {
+ struct ncsi_rsp_pkt_hdr rsp; /* Response header */
+ __be32 ncsi_version; /* NCSI version */
+ unsigned char reserved[3]; /* Reserved */
+ unsigned char alpha2; /* NCSI version */
+ unsigned char fw_name[12]; /* f/w name string */
+ __be32 fw_version; /* f/w version */
+ __be16 pci_ids[4]; /* PCI IDs */
+ __be32 mf_id; /* Manufacture ID */
+ __be32 checksum;
+};
+
+/* Get Capabilities */
+struct ncsi_rsp_gc_pkt {
+ struct ncsi_rsp_pkt_hdr rsp; /* Response header */
+ __be32 cap; /* Capabilities */
+ __be32 bc_cap; /* Broadcast cap */
+ __be32 mc_cap; /* Multicast cap */
+ __be32 buf_cap; /* Buffering cap */
+ __be32 aen_cap; /* AEN cap */
+ unsigned char vlan_cnt; /* VLAN filter count */
+ unsigned char mixed_cnt; /* Mix filter count */
+ unsigned char mc_cnt; /* MC filter count */
+ unsigned char uc_cnt; /* UC filter count */
+ unsigned char reserved[2]; /* Reserved */
+ unsigned char vlan_mode; /* VLAN mode */
+ unsigned char channel_cnt; /* Channel count */
+ __be32 checksum; /* Checksum */
+};
+
+/* Get Parameters */
+struct ncsi_rsp_gp_pkt {
+ struct ncsi_rsp_pkt_hdr rsp; /* Response header */
+ unsigned char mac_cnt; /* Number of MAC addr */
+ unsigned char reserved[2]; /* Reserved */
+ unsigned char mac_enable; /* MAC addr enable flags */
+ unsigned char vlan_cnt; /* VLAN tag count */
+ unsigned char reserved1; /* Reserved */
+ __be16 vlan_enable; /* VLAN tag enable flags */
+ __be32 link_mode; /* Link setting */
+ __be32 bc_mode; /* BC filter mode */
+ __be32 valid_modes; /* Valid mode parameters */
+ unsigned char vlan_mode; /* VLAN mode */
+ unsigned char fc_mode; /* Flow control mode */
+ unsigned char reserved2[2]; /* Reserved */
+ __be32 aen_mode; /* AEN mode */
+ unsigned char mac[6]; /* Supported MAC addr */
+ __be16 vlan; /* Supported VLAN tags */
+ __be32 checksum; /* Checksum */
+};
+
+/* Get Controller Packet Statistics */
+struct ncsi_rsp_gcps_pkt {
+ struct ncsi_rsp_pkt_hdr rsp; /* Response header */
+ __be32 cnt_hi; /* Counter cleared */
+ __be32 cnt_lo; /* Counter cleared */
+ __be32 rx_bytes; /* Rx bytes */
+ __be32 tx_bytes; /* Tx bytes */
+ __be32 rx_uc_pkts; /* Rx UC packets */
+ __be32 rx_mc_pkts; /* Rx MC packets */
+ __be32 rx_bc_pkts; /* Rx BC packets */
+ __be32 tx_uc_pkts; /* Tx UC packets */
+ __be32 tx_mc_pkts; /* Tx MC packets */
+ __be32 tx_bc_pkts; /* Tx BC packets */
+ __be32 fcs_err; /* FCS errors */
+ __be32 align_err; /* Alignment errors */
+ __be32 false_carrier; /* False carrier detection */
+ __be32 runt_pkts; /* Rx runt packets */
+ __be32 jabber_pkts; /* Rx jabber packets */
+ __be32 rx_pause_xon; /* Rx pause XON frames */
+ __be32 rx_pause_xoff; /* Rx XOFF frames */
+ __be32 tx_pause_xon; /* Tx XON frames */
+ __be32 tx_pause_xoff; /* Tx XOFF frames */
+ __be32 tx_s_collision; /* Single collision frames */
+ __be32 tx_m_collision; /* Multiple collision frames */
+ __be32 l_collision; /* Late collision frames */
+ __be32 e_collision; /* Excessive collision frames */
+ __be32 rx_ctl_frames; /* Rx control frames */
+ __be32 rx_64_frames; /* Rx 64-bytes frames */
+ __be32 rx_127_frames; /* Rx 65-127 bytes frames */
+ __be32 rx_255_frames; /* Rx 128-255 bytes frames */
+ __be32 rx_511_frames; /* Rx 256-511 bytes frames */
+ __be32 rx_1023_frames; /* Rx 512-1023 bytes frames */
+ __be32 rx_1522_frames; /* Rx 1024-1522 bytes frames */
+ __be32 rx_9022_frames; /* Rx 1523-9022 bytes frames */
+ __be32 tx_64_frames; /* Tx 64-bytes frames */
+ __be32 tx_127_frames; /* Tx 65-127 bytes frames */
+ __be32 tx_255_frames; /* Tx 128-255 bytes frames */
+ __be32 tx_511_frames; /* Tx 256-511 bytes frames */
+ __be32 tx_1023_frames; /* Tx 512-1023 bytes frames */
+ __be32 tx_1522_frames; /* Tx 1024-1522 bytes frames */
+ __be32 tx_9022_frames; /* Tx 1523-9022 bytes frames */
+ __be32 rx_valid_bytes; /* Rx valid bytes */
+ __be32 rx_runt_pkts; /* Rx error runt packets */
+ __be32 rx_jabber_pkts; /* Rx error jabber packets */
+ __be32 checksum; /* Checksum */
+};
+
+/* Get NCSI Statistics */
+struct ncsi_rsp_gns_pkt {
+ struct ncsi_rsp_pkt_hdr rsp; /* Response header */
+ __be32 rx_cmds; /* Rx NCSI commands */
+ __be32 dropped_cmds; /* Dropped commands */
+ __be32 cmd_type_errs; /* Command type errors */
+ __be32 cmd_csum_errs; /* Command checksum errors */
+ __be32 rx_pkts; /* Rx NCSI packets */
+ __be32 tx_pkts; /* Tx NCSI packets */
+ __be32 tx_aen_pkts; /* Tx AEN packets */
+ __be32 checksum; /* Checksum */
+};
+
+/* Get NCSI Pass-through Statistics */
+struct ncsi_rsp_gnpts_pkt {
+ struct ncsi_rsp_pkt_hdr rsp; /* Response header */
+ __be32 tx_pkts; /* Tx packets */
+ __be32 tx_dropped; /* Tx dropped packets */
+ __be32 tx_channel_err; /* Tx channel errors */
+ __be32 tx_us_err; /* Tx undersize errors */
+ __be32 rx_pkts; /* Rx packets */
+ __be32 rx_dropped; /* Rx dropped packets */
+ __be32 rx_channel_err; /* Rx channel errors */
+ __be32 rx_us_err; /* Rx undersize errors */
+ __be32 rx_os_err; /* Rx oversize errors */
+ __be32 checksum; /* Checksum */
+};
+
+/* Get package status */
+struct ncsi_rsp_gps_pkt {
+ struct ncsi_rsp_pkt_hdr rsp; /* Response header */
+ __be32 status; /* Hardware arbitration status */
+ __be32 checksum;
+};
+
+/* Get package UUID */
+struct ncsi_rsp_gpuuid_pkt {
+ struct ncsi_rsp_pkt_hdr rsp; /* Response header */
+ unsigned char uuid[16]; /* UUID */
+ __be32 checksum;
+};
+
+/* AEN: Link State Change */
+struct ncsi_aen_lsc_pkt {
+ struct ncsi_aen_pkt_hdr aen; /* AEN header */
+ __be32 status; /* Link status */
+ __be32 oem_status; /* OEM link status */
+ __be32 checksum; /* Checksum */
+ unsigned char pad[14];
+};
+
+/* AEN: Configuration Required */
+struct ncsi_aen_cr_pkt {
+ struct ncsi_aen_pkt_hdr aen; /* AEN header */
+ __be32 checksum; /* Checksum */
+ unsigned char pad[22];
+};
+
+/* AEN: Host Network Controller Driver Status Change */
+struct ncsi_aen_hncdsc_pkt {
+ struct ncsi_aen_pkt_hdr aen; /* AEN header */
+ __be32 status; /* Status */
+ __be32 checksum; /* Checksum */
+ unsigned char pad[18];
+};
+
+/* NCSI packet revision */
+#define NCSI_PKT_REVISION 0x01
+
+/* NCSI packet commands */
+#define NCSI_PKT_CMD_CIS 0x00 /* Clear Initial State */
+#define NCSI_PKT_CMD_SP 0x01 /* Select Package */
+#define NCSI_PKT_CMD_DP 0x02 /* Deselect Package */
+#define NCSI_PKT_CMD_EC 0x03 /* Enable Channel */
+#define NCSI_PKT_CMD_DC 0x04 /* Disable Channel */
+#define NCSI_PKT_CMD_RC 0x05 /* Reset Channel */
+#define NCSI_PKT_CMD_ECNT 0x06 /* Enable Channel Network Tx */
+#define NCSI_PKT_CMD_DCNT 0x07 /* Disable Channel Network Tx */
+#define NCSI_PKT_CMD_AE 0x08 /* AEN Enable */
+#define NCSI_PKT_CMD_SL 0x09 /* Set Link */
+#define NCSI_PKT_CMD_GLS 0x0a /* Get Link */
+#define NCSI_PKT_CMD_SVF 0x0b /* Set VLAN Filter */
+#define NCSI_PKT_CMD_EV 0x0c /* Enable VLAN */
+#define NCSI_PKT_CMD_DV 0x0d /* Disable VLAN */
+#define NCSI_PKT_CMD_SMA 0x0e /* Set MAC address */
+#define NCSI_PKT_CMD_EBF 0x10 /* Enable Broadcast Filter */
+#define NCSI_PKT_CMD_DBF 0x11 /* Disable Broadcast Filter */
+#define NCSI_PKT_CMD_EGMF 0x12 /* Enable Global Multicast Filter */
+#define NCSI_PKT_CMD_DGMF 0x13 /* Disable Global Multicast Filter */
+#define NCSI_PKT_CMD_SNFC 0x14 /* Set NCSI Flow Control */
+#define NCSI_PKT_CMD_GVI 0x15 /* Get Version ID */
+#define NCSI_PKT_CMD_GC 0x16 /* Get Capabilities */
+#define NCSI_PKT_CMD_GP 0x17 /* Get Parameters */
+#define NCSI_PKT_CMD_GCPS 0x18 /* Get Controller Packet Statistics */
+#define NCSI_PKT_CMD_GNS 0x19 /* Get NCSI Statistics */
+#define NCSI_PKT_CMD_GNPTS 0x1a /* Get NCSI Pass-throu Statistics */
+#define NCSI_PKT_CMD_GPS 0x1b /* Get package status */
+#define NCSI_PKT_CMD_OEM 0x50 /* OEM */
+#define NCSI_PKT_CMD_PLDM 0x51 /* PLDM request over NCSI over RBT */
+#define NCSI_PKT_CMD_GPUUID 0x52 /* Get package UUID */
+
+/* NCSI packet responses */
+#define NCSI_PKT_RSP_CIS (NCSI_PKT_CMD_CIS + 0x80)
+#define NCSI_PKT_RSP_SP (NCSI_PKT_CMD_SP + 0x80)
+#define NCSI_PKT_RSP_DP (NCSI_PKT_CMD_DP + 0x80)
+#define NCSI_PKT_RSP_EC (NCSI_PKT_CMD_EC + 0x80)
+#define NCSI_PKT_RSP_DC (NCSI_PKT_CMD_DC + 0x80)
+#define NCSI_PKT_RSP_RC (NCSI_PKT_CMD_RC + 0x80)
+#define NCSI_PKT_RSP_ECNT (NCSI_PKT_CMD_ECNT + 0x80)
+#define NCSI_PKT_RSP_DCNT (NCSI_PKT_CMD_DCNT + 0x80)
+#define NCSI_PKT_RSP_AE (NCSI_PKT_CMD_AE + 0x80)
+#define NCSI_PKT_RSP_SL (NCSI_PKT_CMD_SL + 0x80)
+#define NCSI_PKT_RSP_GLS (NCSI_PKT_CMD_GLS + 0x80)
+#define NCSI_PKT_RSP_SVF (NCSI_PKT_CMD_SVF + 0x80)
+#define NCSI_PKT_RSP_EV (NCSI_PKT_CMD_EV + 0x80)
+#define NCSI_PKT_RSP_DV (NCSI_PKT_CMD_DV + 0x80)
+#define NCSI_PKT_RSP_SMA (NCSI_PKT_CMD_SMA + 0x80)
+#define NCSI_PKT_RSP_EBF (NCSI_PKT_CMD_EBF + 0x80)
+#define NCSI_PKT_RSP_DBF (NCSI_PKT_CMD_DBF + 0x80)
+#define NCSI_PKT_RSP_EGMF (NCSI_PKT_CMD_EGMF + 0x80)
+#define NCSI_PKT_RSP_DGMF (NCSI_PKT_CMD_DGMF + 0x80)
+#define NCSI_PKT_RSP_SNFC (NCSI_PKT_CMD_SNFC + 0x80)
+#define NCSI_PKT_RSP_GVI (NCSI_PKT_CMD_GVI + 0x80)
+#define NCSI_PKT_RSP_GC (NCSI_PKT_CMD_GC + 0x80)
+#define NCSI_PKT_RSP_GP (NCSI_PKT_CMD_GP + 0x80)
+#define NCSI_PKT_RSP_GCPS (NCSI_PKT_CMD_GCPS + 0x80)
+#define NCSI_PKT_RSP_GNS (NCSI_PKT_CMD_GNS + 0x80)
+#define NCSI_PKT_RSP_GNPTS (NCSI_PKT_CMD_GNPTS + 0x80)
+#define NCSI_PKT_RSP_GPS (NCSI_PKT_CMD_GPS + 0x80)
+#define NCSI_PKT_RSP_OEM (NCSI_PKT_CMD_OEM + 0x80)
+#define NCSI_PKT_RSP_PLDM (NCSI_PKT_CMD_PLDM + 0x80)
+#define NCSI_PKT_RSP_GPUUID (NCSI_PKT_CMD_GPUUID + 0x80)
+
+/* NCSI response code/reason */
+#define NCSI_PKT_RSP_C_COMPLETED 0x0000 /* Command Completed */
+#define NCSI_PKT_RSP_C_FAILED 0x0001 /* Command Failed */
+#define NCSI_PKT_RSP_C_UNAVAILABLE 0x0002 /* Command Unavailable */
+#define NCSI_PKT_RSP_C_UNSUPPORTED 0x0003 /* Command Unsupported */
+#define NCSI_PKT_RSP_R_NO_ERROR 0x0000 /* No Error */
+#define NCSI_PKT_RSP_R_INTERFACE 0x0001 /* Interface not ready */
+#define NCSI_PKT_RSP_R_PARAM 0x0002 /* Invalid Parameter */
+#define NCSI_PKT_RSP_R_CHANNEL 0x0003 /* Channel not Ready */
+#define NCSI_PKT_RSP_R_PACKAGE 0x0004 /* Package not Ready */
+#define NCSI_PKT_RSP_R_LENGTH 0x0005 /* Invalid payload length */
+#define NCSI_PKT_RSP_R_UNKNOWN 0x7fff /* Command type unsupported */
+
+/* NCSI AEN packet type */
+#define NCSI_PKT_AEN 0xFF /* AEN Packet */
+#define NCSI_PKT_AEN_LSC 0x00 /* Link status change */
+#define NCSI_PKT_AEN_CR 0x01 /* Configuration required */
+#define NCSI_PKT_AEN_HNCDSC 0x02 /* HNC driver status change */
+
+#endif /* __NCSI_PKT_H__ */
diff --git a/include/net/ncsi.h b/include/net/ncsi.h
new file mode 100644
index 0000000000..b797a36599
--- /dev/null
+++ b/include/net/ncsi.h
@@ -0,0 +1,7 @@
+#include <common.h>
+#include <phy.h>
+
+void ncsi_receive(struct ethernet_hdr *et, struct ip_udp_hdr *ip,
+ unsigned int len);
+void ncsi_probe_packages(void);
+int ncsi_probe(struct phy_device *phydev);
\ No newline at end of file
diff --git a/include/phy.h b/include/phy.h
index d01435d1aa..50032514fa 100644
--- a/include/phy.h
+++ b/include/phy.h
@@ -17,6 +17,7 @@
#include <phy_interface.h>
#define PHY_FIXED_ID 0xa5a55a5a
+#define PHY_NCSI_ID 0xbeefcafe
#define PHY_MAX_ADDR 32
@@ -162,6 +163,11 @@ static inline int phy_read(struct phy_device *phydev, int devad, int regnum)
{
struct mii_dev *bus = phydev->bus;
+ if (!bus || !bus->read) {
+ debug("%s: No bus configured\n", __func__);
+ return 0;
+ }
+
return bus->read(bus, phydev->addr, devad, regnum);
}
@@ -170,6 +176,11 @@ static inline int phy_write(struct phy_device *phydev, int devad, int regnum,
{
struct mii_dev *bus = phydev->bus;
+ if (!bus || !bus->read) {
+ debug("%s: No bus configured\n", __func__);
+ return 0;
+ }
+
return bus->write(bus, phydev->addr, devad, regnum, val);
}
@@ -311,6 +322,7 @@ int phy_vitesse_init(void);
int phy_xilinx_init(void);
int phy_mscc_init(void);
int phy_fixed_init(void);
+int phy_ncsi_init(void);
int board_phy_config(struct phy_device *phydev);
int get_phy_id(struct mii_dev *bus, int addr, int devad, u32 *phy_id);
diff --git a/include/phy_interface.h b/include/phy_interface.h
index c6823189f8..9e334bb47d 100644
--- a/include/phy_interface.h
+++ b/include/phy_interface.h
@@ -31,6 +31,7 @@ typedef enum {
PHY_INTERFACE_MODE_XLAUI,
PHY_INTERFACE_MODE_CAUI2,
PHY_INTERFACE_MODE_CAUI4,
+ PHY_INTERFACE_MODE_NCSI,
PHY_INTERFACE_MODE_NONE, /* Must be last */
PHY_INTERFACE_MODE_COUNT,
@@ -58,6 +59,7 @@ static const char * const phy_interface_strings[] = {
[PHY_INTERFACE_MODE_XLAUI] = "xlaui4",
[PHY_INTERFACE_MODE_CAUI2] = "caui2",
[PHY_INTERFACE_MODE_CAUI4] = "caui4",
+ [PHY_INTERFACE_MODE_NCSI] = "NC-SI",
[PHY_INTERFACE_MODE_NONE] = "",
};
diff --git a/net/net.c b/net/net.c
index 58b0417cbe..f2e4525faa 100644
--- a/net/net.c
+++ b/net/net.c
@@ -95,6 +95,7 @@
#include <net.h>
#include <net/fastboot.h>
#include <net/tftp.h>
+#include <net/ncsi.h>
#if defined(CONFIG_LED_STATUS)
#include <miiphy.h>
#include <status_led.h>
@@ -407,6 +408,17 @@ int net_loop(enum proto_t protocol)
net_try_count = 1;
debug_cond(DEBUG_INT_STATE, "--- net_loop Entry\n");
+#ifdef CONFIG_PHY_NCSI
+ // TODO Only call if not configured already
+ if (protocol != NCSI) {
+ printf("%s: configuring NCSI first\n", __func__);
+ if (net_loop(NCSI) < 0)
+ return ret;
+ eth_init_state_only();
+ goto restart;
+ }
+#endif
+
bootstage_mark_name(BOOTSTAGE_ID_ETH_START, "eth_start");
net_init();
if (eth_is_on_demand_init() || protocol != NETCONS) {
@@ -420,6 +432,7 @@ int net_loop(enum proto_t protocol)
} else {
eth_init_state_only();
}
+
restart:
#ifdef CONFIG_USB_KEYBOARD
net_busy_flag = 0;
@@ -526,6 +539,11 @@ restart:
case WOL:
wol_start();
break;
+#endif
+#if defined(CONFIG_CMD_NCSI)
+ case NCSI:
+ ncsi_probe_packages();
+ break;
#endif
default:
break;
@@ -637,7 +655,7 @@ restart:
env_set_hex("filesize", net_boot_file_size);
env_set_hex("fileaddr", load_addr);
}
- if (protocol != NETCONS)
+ if (protocol != NETCONS && protocol != NCSI)
eth_halt();
else
eth_halt_state_only();
@@ -1318,6 +1336,11 @@ void net_process_received_packet(uchar *in_packet, int len)
case PROT_WOL:
wol_receive(ip, len);
break;
+#endif
+#ifdef CONFIG_PHY_NCSI
+ case PROT_NCSI:
+ ncsi_receive(et, ip, len);
+ break;
#endif
}
}
@@ -1379,6 +1402,9 @@ common:
#ifdef CONFIG_CMD_RARP
case RARP:
+#endif
+#ifdef CONFIG_CMD_NCSI
+ case NCSI:
#endif
case BOOTP:
case CDP:
--
2.21.0
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