From: Jakub Kicinski <jakub.kicinski@netronome.com>
To: Jiri Pirko <jiri@resnulli.us>
Cc: netdev@vger.kernel.org, davem@davemloft.net, mlxsw@mellanox.com,
sthemmin@microsoft.com, dsahern@gmail.com, saeedm@mellanox.com,
leon@kernel.org
Subject: Re: [patch iproute2 3/3] devlink: implement flash status monitoring
Date: Thu, 23 May 2019 10:57:03 -0700 [thread overview]
Message-ID: <20190523105703.0f03acc3@cakuba.netronome.com> (raw)
In-Reply-To: <20190523094710.2410-3-jiri@resnulli.us>
On Thu, 23 May 2019 11:47:10 +0200, Jiri Pirko wrote:
> From: Jiri Pirko <jiri@mellanox.com>
>
> Listen to status notifications coming from kernel during flashing and
> put them on stdout to inform user about the status.
>
> Signed-off-by: Jiri Pirko <jiri@mellanox.com>
> +static int cmd_dev_flash_status_cb(const struct nlmsghdr *nlh, void *data)
> +{
> + struct cmd_dev_flash_status_ctx *ctx = data;
> + struct dl_opts *opts = &ctx->dl->opts;
> + struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh);
> + struct nlattr *tb[DEVLINK_ATTR_MAX + 1] = {};
> + const char *component = NULL;
> + uint64_t done = 0, total = 0;
> + const char *msg = NULL;
> + const char *bus_name;
> + const char *dev_name;
> +
> + if (genl->cmd != DEVLINK_CMD_FLASH_UPDATE_STATUS &&
> + genl->cmd != DEVLINK_CMD_FLASH_UPDATE_END)
> + return MNL_CB_STOP;
> +
> + mnl_attr_parse(nlh, sizeof(*genl), attr_cb, tb);
> + if (!tb[DEVLINK_ATTR_BUS_NAME] || !tb[DEVLINK_ATTR_DEV_NAME])
> + return MNL_CB_ERROR;
> + bus_name = mnl_attr_get_str(tb[DEVLINK_ATTR_BUS_NAME]);
> + dev_name = mnl_attr_get_str(tb[DEVLINK_ATTR_DEV_NAME]);
> + if (strcmp(bus_name, opts->bus_name) ||
> + strcmp(dev_name, opts->dev_name))
> + return MNL_CB_ERROR;
> +
> + if (genl->cmd == DEVLINK_CMD_FLASH_UPDATE_END && ctx->not_first) {
> + pr_out("\n");
> + free(ctx->last_msg);
> + free(ctx->last_component);
> + ctx->received_end = 1;
> + return MNL_CB_STOP;
> + }
> + pid = fork();
> + if (pid == -1) {
> + close(pipe_r);
> + close(pipe_w);
> + return -errno;
> + } else if (!pid) {
> + /* In child, just execute the flash and pass returned
> + * value through pipe once it is done.
> + */
> + close(pipe_r);
> + err = _mnlg_socket_send(dl->nlg, nlh);
> + write(pipe_w, &err, sizeof(err));
> + close(pipe_w);
> + exit(0);
> + }
> + close(pipe_w);
> +
> + do {
> + err = cmd_dev_flash_fds_process(&ctx, nlg_ntf, pipe_r);
> + if (err)
> + goto out;
> + } while (!ctx.flash_done || !ctx.received_end);
Won't this loop forever if driver never sends
DEVLINK_CMD_FLASH_UPDATE_END IOW doesn't implement status updates?
next prev parent reply other threads:[~2019-05-23 17:57 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-23 9:45 [patch net-next 0/7] expose flash update status to user Jiri Pirko
2019-05-23 9:45 ` [patch net-next 1/7] mlxsw: Move firmware flash implementation to devlink Jiri Pirko
2019-05-23 9:45 ` [patch net-next 2/7] mlx5: " Jiri Pirko
2019-05-23 9:45 ` [patch net-next 3/7] mlxfw: Propagate error messages through extack Jiri Pirko
2019-05-23 15:19 ` David Ahern
2019-05-23 18:30 ` Saeed Mahameed
2019-05-24 8:11 ` Jiri Pirko
2019-05-24 15:54 ` Jakub Kicinski
2019-05-24 22:26 ` Jiri Pirko
2019-05-25 0:08 ` Jakub Kicinski
2019-05-27 13:33 ` Jiri Pirko
2019-05-23 9:45 ` [patch net-next 4/7] devlink: allow driver to update progress of flash update Jiri Pirko
2019-05-23 17:39 ` Jakub Kicinski
2019-05-23 9:45 ` [patch net-next 5/7] mlxfw: Introduce status_notify op and call it to notify about the status Jiri Pirko
2019-05-23 9:45 ` [patch net-next 6/7] mlxsw: Implement flash update status notifications Jiri Pirko
2019-05-23 9:45 ` [patch net-next 7/7] netdevsim: implement fake flash updating with notifications Jiri Pirko
2019-05-23 17:47 ` Jakub Kicinski
2019-05-24 8:17 ` Jiri Pirko
2019-05-23 9:47 ` [patch iproute2 1/3] header update Jiri Pirko
2019-05-23 9:47 ` [patch iproute2 2/3] devlink: implement flash update status monitoring Jiri Pirko
2019-05-23 9:47 ` [patch iproute2 3/3] devlink: implement flash " Jiri Pirko
2019-05-23 17:57 ` Jakub Kicinski [this message]
2019-05-24 8:14 ` Jiri Pirko
2019-05-23 18:37 ` [patch net-next 0/7] expose flash update status to user Saeed Mahameed
2019-05-24 8:15 ` Jiri Pirko
2019-05-24 15:04 ` David Ahern
2019-05-28 11:29 ` Jiri Pirko
2019-05-27 18:14 ` Florian Fainelli
2019-05-28 8:55 ` Jiri Pirko
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