From 2099002b6204ac99b6754eb11f2a2287f889f2ee Mon Sep 17 00:00:00 2001
From: Navdeep Parhar <np@FreeBSD.org>
Date: Fri, 7 Oct 2016 19:13:29 +0000
Subject: [PATCH] cxgbetool: Add a loadcfg subcommand to allow a user to upload
 a firmware configuration file to the card.

---
 tools/tools/cxgbetool/cxgbetool.8 | 13 +++++++++
 tools/tools/cxgbetool/cxgbetool.c | 47 +++++++++++++++++++++++++++++++
 2 files changed, 60 insertions(+)

diff --git a/tools/tools/cxgbetool/cxgbetool.8 b/tools/tools/cxgbetool/cxgbetool.8
index 16b0ce63f35..bdc4eb7ea75 100644
--- a/tools/tools/cxgbetool/cxgbetool.8
+++ b/tools/tools/cxgbetool/cxgbetool.8
@@ -56,6 +56,10 @@
 .It
 .Nm Ar nexus Cm i2c Ar port_id devaddr addr Op Ar len
 .It
+.Nm Ar nexus Cm loadcfg Ar fw-config.txt
+.It
+.Nm Ar nexus Cm loadcfg clear
+.It
 .Nm Ar nexus Cm loadfw Ar fw-image.bin
 .It
 .Nm Ar nexus Cm memdump Ar addr len
@@ -353,6 +357,15 @@ Delete filter that is at the given index.
 .It Cm filter Cm list
 List all filters programmed into the hardware.
 .It Cm i2c Ar port_id devaddr addr Op Ar len
+.It Cm loadcfg Ar fw-config.txt
+Install the firmware configuration file contained in
+.Ar fw-config.txt
+to the card.
+Set hw.cxgbe.config_file="flash" in loader.conf to get
+.Xr cxgbe 4
+to use the on-flash configuration.
+.It Cm loadcfg Cm clear
+Erase configuration file from the card.
 .It Cm loadfw Ar fw-image.bin
 Install the firmware contained in
 .Ar fw-image.bin
diff --git a/tools/tools/cxgbetool/cxgbetool.c b/tools/tools/cxgbetool/cxgbetool.c
index 7d9a4c96ee1..71f07dfefc0 100644
--- a/tools/tools/cxgbetool/cxgbetool.c
+++ b/tools/tools/cxgbetool/cxgbetool.c
@@ -95,6 +95,8 @@ usage(FILE *fp)
 	    "\tfilter list                         list all filters\n"
 	    "\tfilter mode [<match>] ...           get/set global filter mode\n"
 	    "\ti2c <port> <devaddr> <addr> [<len>] read from i2c device\n"
+	    "\tloadcfg <fw-config.txt>             install configuration file\n"
+	    "\tloadcfg clear                       remove configuration file\n"
 	    "\tloadfw <fw-image.bin>               install firmware\n"
 	    "\tmemdump <addr> <len>                dump a memory range\n"
 	    "\tmodinfo <port> [raw]                optics/cable information\n"
@@ -1834,6 +1836,49 @@ loadfw(int argc, const char *argv[])
 	return (rc);
 }
 
+static int
+loadcfg(int argc, const char *argv[])
+{
+	int rc, fd;
+	struct t4_data data = {0};
+	const char *fname = argv[0];
+	struct stat st = {0};
+
+	if (argc != 1) {
+		warnx("loadcfg: incorrect number of arguments.");
+		return (EINVAL);
+	}
+
+	if (strcmp(fname, "clear") == 0)
+		return (doit(CHELSIO_T4_LOAD_CFG, &data));
+
+	fd = open(fname, O_RDONLY);
+	if (fd < 0) {
+		warn("open(%s)", fname);
+		return (errno);
+	}
+
+	if (fstat(fd, &st) < 0) {
+		warn("fstat");
+		close(fd);
+		return (errno);
+	}
+
+	data.len = st.st_size;
+	data.len &= ~3;		/* Clip off to make it a multiple of 4 */
+	data.data = mmap(0, data.len, PROT_READ, MAP_PRIVATE, fd, 0);
+	if (data.data == MAP_FAILED) {
+		warn("mmap");
+		close(fd);
+		return (errno);
+	}
+
+	rc = doit(CHELSIO_T4_LOAD_CFG, &data);
+	munmap(data.data, data.len);
+	close(fd);
+	return (rc);
+}
+
 static int
 read_mem(uint32_t addr, uint32_t len, void (*output)(uint32_t *, uint32_t))
 {
@@ -2732,6 +2777,8 @@ run_cmd(int argc, const char *argv[])
 		rc = sched_class(argc, argv);
 	else if (!strcmp(cmd, "sched-queue"))
 		rc = sched_queue(argc, argv);
+	else if (!strcmp(cmd, "loadcfg"))
+		rc = loadcfg(argc, argv);
 	else {
 		rc = EINVAL;
 		warnx("invalid command \"%s\"", cmd);