| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Date: Mon, 21 Aug 2017 18:19:44 -0700
From: Felix Manlunas <felix.manlunas@...ium.com>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org, raghu.vatsavayi@...ium.com,
derek.chickles@...ium.com, satananda.burla@...ium.com,
weilin.chang@...ium.com
Subject: [PATCH net-next] liquidio: show NIC's U-Boot version in a dev_info()
message
From: Weilin Chang <weilin.chang@...ium.com>
Signed-off-by: Weilin Chang <weilin.chang@...ium.com>
Signed-off-by: Felix Manlunas <felix.manlunas@...ium.com>
---
.../net/ethernet/cavium/liquidio/octeon_console.c | 85 ++++++++++++++++++++++
.../net/ethernet/cavium/liquidio/octeon_device.h | 5 ++
2 files changed, 90 insertions(+)
diff --git a/drivers/net/ethernet/cavium/liquidio/octeon_console.c b/drivers/net/ethernet/cavium/liquidio/octeon_console.c
index 19e5212..88ef12b 100644
--- a/drivers/net/ethernet/cavium/liquidio/octeon_console.c
+++ b/drivers/net/ethernet/cavium/liquidio/octeon_console.c
@@ -30,6 +30,7 @@
#include "liquidio_image.h"
#include "octeon_mem_ops.h"
+static void octeon_get_uboot_version(struct octeon_device *oct);
static void octeon_remote_lock(void);
static void octeon_remote_unlock(void);
static u64 cvmx_bootmem_phy_named_block_find(struct octeon_device *oct,
@@ -611,6 +612,9 @@ int octeon_add_console(struct octeon_device *oct, u32 console_num,
work = &oct->console_poll_work[console_num].work;
+ if (oct->uboot_len == 0)
+ octeon_get_uboot_version(oct);
+
INIT_DELAYED_WORK(work, check_console);
oct->console_poll_work[console_num].ctxptr = (void *)oct;
oct->console_poll_work[console_num].ctxul = console_num;
@@ -724,6 +728,87 @@ static int octeon_console_read(struct octeon_device *oct, u32 console_num,
return bytes_to_read;
}
+static void octeon_get_uboot_version(struct octeon_device *oct)
+{
+ s32 bytes_read, tries, total_read;
+ struct octeon_console *console;
+ u32 console_num = 0;
+ int i;
+
+ if (octeon_console_send_cmd(oct, "setenv stdout pci\n", 50))
+ return;
+
+ console = &oct->console[console_num];
+ tries = 0;
+ total_read = 0;
+
+ if (octeon_console_send_cmd(oct, "version\n", 1))
+ return;
+
+ do {
+ /* Take console output regardless of whether it will
+ * be logged
+ */
+ bytes_read =
+ octeon_console_read(oct,
+ console_num, oct->uboot_version +
+ total_read,
+ OCTEON_UBOOT_BUFFER_SIZE - 1 -
+ total_read);
+ if (bytes_read > 0) {
+ oct->uboot_version[bytes_read] = 0x0;
+
+ total_read += bytes_read;
+ if (console->waiting)
+ octeon_console_handle_result(oct, console_num);
+ } else if (bytes_read < 0) {
+ dev_err(&oct->pci_dev->dev, "Error reading console %u, ret=%d\n",
+ console_num, bytes_read);
+ }
+
+ tries++;
+ } while ((bytes_read > 0) && (tries < 16));
+
+ /* If nothing is read after polling the console,
+ * output any leftovers if any
+ */
+ if ((total_read == 0) && (console->leftover[0])) {
+ dev_dbg(&oct->pci_dev->dev, "%u: %s\n",
+ console_num, console->leftover);
+ console->leftover[0] = '\0';
+ }
+
+ if (octeon_console_send_cmd(oct, "setenv stdout serial\n", 50))
+ return;
+
+ /* U-Boot */
+ for (i = 0; i < (OCTEON_UBOOT_BUFFER_SIZE - 9); i++) {
+ if (oct->uboot_version[i] == 'U' &&
+ oct->uboot_version[i + 2] == 'B' &&
+ oct->uboot_version[i + 3] == 'o' &&
+ oct->uboot_version[i + 4] == 'o' &&
+ oct->uboot_version[i + 5] == 't') {
+ oct->uboot_sidx = i;
+ i++;
+ for (; oct->uboot_version[i] != 0x0; i++) {
+ if (oct->uboot_version[i] == 'm' &&
+ oct->uboot_version[i + 1] == 'i' &&
+ oct->uboot_version[i + 2] == 'p' &&
+ oct->uboot_version[i + 3] == 's') {
+ oct->uboot_eidx = i - 1;
+ oct->uboot_version[i - 1] = 0x0;
+ oct->uboot_len = oct->uboot_eidx -
+ oct->uboot_sidx + 1;
+ dev_info(&oct->pci_dev->dev, "%s\n",
+ &oct->uboot_version
+ [oct->uboot_sidx]);
+ return;
+ }
+ }
+ }
+ }
+}
+
#define FBUF_SIZE (4 * 1024 * 1024)
int octeon_download_firmware(struct octeon_device *oct, const u8 *data,
diff --git a/drivers/net/ethernet/cavium/liquidio/octeon_device.h b/drivers/net/ethernet/cavium/liquidio/octeon_device.h
index 894af19..8dbd133 100644
--- a/drivers/net/ethernet/cavium/liquidio/octeon_device.h
+++ b/drivers/net/ethernet/cavium/liquidio/octeon_device.h
@@ -550,6 +550,11 @@ struct octeon_device {
bool cores_crashed;
+#define OCTEON_UBOOT_BUFFER_SIZE 512
+ char uboot_version[OCTEON_UBOOT_BUFFER_SIZE];
+ int uboot_len;
+ int uboot_sidx, uboot_eidx;
+
struct {
int bus;
int dev;
Powered by blists - more mailing lists