bootstd: Add a new pre-scan priority for bootdevs

We need extensions to be set up before we start trying to boot any of the
bootdevs. Add a new priority before all the others for tht sort of thing.
Also add a 'none' option, so that the first one is not 0.

While we are here, comment enum bootdev_prio_t fully and expand the test
for the 'bootdev hunt' command.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2023-01-17 10:48:08 -07:00 committed by Tom Rini
parent 79a7d4a61f
commit eacc261178
12 changed files with 84 additions and 44 deletions

View File

@ -630,6 +630,7 @@ static int build_order(struct udevice *bootstd, struct udevice **order,
int bootdev_setup_iter_order(struct bootflow_iter *iter, struct udevice **devp)
{
struct udevice *bootstd, *dev = *devp, **order;
bool show = iter->flags & BOOTFLOWF_SHOW;
struct uclass *uc;
int count, upto;
int ret;
@ -640,6 +641,13 @@ int bootdev_setup_iter_order(struct bootflow_iter *iter, struct udevice **devp)
return log_msg_ret("std", ret);
}
/* hunt for any pre-scan devices */
if (iter->flags & BOOTFLOWF_HUNT) {
ret = bootdev_hunt_prio(BOOTDEVP_1_PRE_SCAN, show);
if (ret)
return log_msg_ret("pre", ret);
}
/* Handle scanning a single device */
if (dev) {
iter->flags |= BOOTFLOWF_SINGLE_DEV;

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@ -211,7 +211,7 @@ A bootdev driver is typically fairly simple. Here is one for mmc::
{
struct bootdev_uc_plat *ucp = dev_get_uclass_plat(dev);
ucp->prio = BOOTDEVP_0_INTERNAL_FAST;
ucp->prio = BOOTDEVP_2_INTERNAL_FAST;
return 0;
}

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@ -1060,7 +1060,7 @@ static int ide_bootdev_bind(struct udevice *dev)
{
struct bootdev_uc_plat *ucp = dev_get_uclass_plat(dev);
ucp->prio = BOOTDEVP_3_SCAN_SLOW;
ucp->prio = BOOTDEVP_5_SCAN_SLOW;
return 0;
}
@ -1089,7 +1089,7 @@ U_BOOT_DRIVER(ide_bootdev) = {
};
BOOTDEV_HUNTER(ide_bootdev_hunter) = {
.prio = BOOTDEVP_3_SCAN_SLOW,
.prio = BOOTDEVP_5_SCAN_SLOW,
.uclass = UCLASS_IDE,
.hunt = ide_bootdev_hunt,
.drv = DM_DRIVER_REF(ide_bootdev),

View File

@ -15,7 +15,7 @@ static int mmc_bootdev_bind(struct udevice *dev)
{
struct bootdev_uc_plat *ucp = dev_get_uclass_plat(dev);
ucp->prio = BOOTDEVP_0_INTERNAL_FAST;
ucp->prio = BOOTDEVP_2_INTERNAL_FAST;
return 0;
}
@ -37,7 +37,7 @@ U_BOOT_DRIVER(mmc_bootdev) = {
};
BOOTDEV_HUNTER(mmc_bootdev_hunter) = {
.prio = BOOTDEVP_0_INTERNAL_FAST,
.prio = BOOTDEVP_2_INTERNAL_FAST,
.uclass = UCLASS_MMC,
.drv = DM_DRIVER_REF(mmc_bootdev),
};

View File

@ -53,7 +53,7 @@ static int sf_bootdev_bind(struct udevice *dev)
{
struct bootdev_uc_plat *ucp = dev_get_uclass_plat(dev);
ucp->prio = BOOTDEVP_2_SCAN_FAST;
ucp->prio = BOOTDEVP_4_SCAN_FAST;
return 0;
}
@ -76,7 +76,7 @@ U_BOOT_DRIVER(sf_bootdev) = {
};
BOOTDEV_HUNTER(sf_bootdev_hunter) = {
.prio = BOOTDEVP_2_SCAN_FAST,
.prio = BOOTDEVP_4_SCAN_FAST,
.uclass = UCLASS_SPI_FLASH,
.drv = DM_DRIVER_REF(sf_bootdev),
};

View File

@ -17,7 +17,7 @@ static int nvme_bootdev_bind(struct udevice *dev)
{
struct bootdev_uc_plat *ucp = dev_get_uclass_plat(dev);
ucp->prio = BOOTDEVP_2_SCAN_FAST;
ucp->prio = BOOTDEVP_4_SCAN_FAST;
return 0;
}
@ -62,7 +62,7 @@ U_BOOT_DRIVER(nvme_bootdev) = {
};
BOOTDEV_HUNTER(nvme_bootdev_hunter) = {
.prio = BOOTDEVP_2_SCAN_FAST,
.prio = BOOTDEVP_4_SCAN_FAST,
.uclass = UCLASS_NVME,
.hunt = nvme_bootdev_hunt,
.drv = DM_DRIVER_REF(nvme_bootdev),

View File

@ -16,7 +16,7 @@ static int scsi_bootdev_bind(struct udevice *dev)
{
struct bootdev_uc_plat *ucp = dev_get_uclass_plat(dev);
ucp->prio = BOOTDEVP_2_SCAN_FAST;
ucp->prio = BOOTDEVP_4_SCAN_FAST;
return 0;
}
@ -55,7 +55,7 @@ U_BOOT_DRIVER(scsi_bootdev) = {
};
BOOTDEV_HUNTER(scsi_bootdev_hunter) = {
.prio = BOOTDEVP_2_SCAN_FAST,
.prio = BOOTDEVP_4_SCAN_FAST,
.uclass = UCLASS_SCSI,
.hunt = scsi_bootdev_hunt,
.drv = DM_DRIVER_REF(scsi_bootdev),

View File

@ -15,7 +15,7 @@ static int usb_bootdev_bind(struct udevice *dev)
{
struct bootdev_uc_plat *ucp = dev_get_uclass_plat(dev);
ucp->prio = BOOTDEVP_3_SCAN_SLOW;
ucp->prio = BOOTDEVP_5_SCAN_SLOW;
return 0;
}
@ -42,7 +42,7 @@ U_BOOT_DRIVER(usb_bootdev) = {
};
BOOTDEV_HUNTER(usb_bootdev_hunter) = {
.prio = BOOTDEVP_3_SCAN_SLOW,
.prio = BOOTDEVP_5_SCAN_SLOW,
.uclass = UCLASS_USB,
.hunt = usb_bootdev_hunt,
.drv = DM_DRIVER_REF(usb_bootdev),

View File

@ -360,7 +360,7 @@ static int virtio_bootdev_bind(struct udevice *dev)
{
struct bootdev_uc_plat *ucp = dev_get_uclass_plat(dev);
ucp->prio = BOOTDEVP_2_SCAN_FAST;
ucp->prio = BOOTDEVP_4_SCAN_FAST;
return 0;
}
@ -405,7 +405,7 @@ U_BOOT_DRIVER(virtio_bootdev) = {
};
BOOTDEV_HUNTER(virtio_bootdev_hunter) = {
.prio = BOOTDEVP_2_SCAN_FAST,
.prio = BOOTDEVP_4_SCAN_FAST,
.uclass = UCLASS_VIRTIO,
.hunt = virtio_bootdev_hunt,
.drv = DM_DRIVER_REF(virtio_bootdev),

View File

@ -21,15 +21,36 @@ struct udevice;
*
* Smallest value is the highest priority. By default, bootdevs are scanned from
* highest to lowest priority
*
* BOOTDEVP_0_NONE: Invalid value, do not use
* @BOOTDEVP_6_PRE_SCAN: Scan bootdevs with this priority always, before
* starting any bootflow scan
* @BOOTDEVP_2_INTERNAL_FAST: Internal devices which don't need scanning and
* generally very quick to access, e.g. less than 100ms
* @BOOTDEVP_3_INTERNAL_SLOW: Internal devices which don't need scanning but
* take a significant fraction of a second to access
* @BOOTDEVP_4_SCAN_FAST: Extenal devices which need scanning or bus
* enumeration to find, but this enumeration happens quickly, typically under
* 100ms
* @BOOTDEVP_5_SCAN_SLOW: Extenal devices which need scanning or bus
* enumeration to find. The enumeration takes significant fraction of a second
* to complete
* @BOOTDEVP_6_NET_BASE: Basic network devices which are quickly and easily
* available. Typically used for an internal Ethernet device
* @BOOTDEVP_7_NET_FALLBACK: Secondary network devices which require extra time
* to start up, or are less desirable. Typically used for secondary Ethernet
* devices. Note that USB ethernet devices are found during USB enumeration,
* so do not use this priority
*/
enum bootdev_prio_t {
BOOTDEVP_0_INTERNAL_FAST = 10,
BOOTDEVP_1_INTERNAL_SLOW = 20,
BOOTDEVP_2_SCAN_FAST = 30,
BOOTDEVP_3_SCAN_SLOW = 40,
BOOTDEVP_4_NET_BASE = 50,
BOOTDEVP_5_NET_FALLBACK = 60,
BOOTDEVP_6_SYSTEM = 70,
BOOTDEVP_0_NONE,
BOOTDEVP_1_PRE_SCAN,
BOOTDEVP_2_INTERNAL_FAST,
BOOTDEVP_3_INTERNAL_SLOW,
BOOTDEVP_4_SCAN_FAST,
BOOTDEVP_5_SCAN_SLOW,
BOOTDEVP_6_NET_BASE,
BOOTDEVP_7_NET_FALLBACK,
BOOTDEVP_COUNT,
};

View File

@ -60,7 +60,7 @@ static int eth_bootdev_bind(struct udevice *dev)
{
struct bootdev_uc_plat *ucp = dev_get_uclass_plat(dev);
ucp->prio = BOOTDEVP_4_NET_BASE;
ucp->prio = BOOTDEVP_6_NET_BASE;
return 0;
}
@ -112,7 +112,7 @@ U_BOOT_DRIVER(eth_bootdev) = {
};
BOOTDEV_HUNTER(eth_bootdev_hunt) = {
.prio = BOOTDEVP_4_NET_BASE,
.prio = BOOTDEVP_6_NET_BASE,
.uclass = UCLASS_ETH,
.hunt = eth_bootdev_hunt,
.drv = DM_DRIVER_REF(eth_bootdev),

View File

@ -247,14 +247,14 @@ static int bootdev_test_hunter(struct unit_test_state *uts)
bootdev_list_hunters(std);
ut_assert_nextline("Prio Used Uclass Hunter");
ut_assert_nextlinen("----");
ut_assert_nextline(" 50 ethernet eth_bootdev");
ut_assert_nextline(" 40 ide ide_bootdev");
ut_assert_nextline(" 10 mmc mmc_bootdev");
ut_assert_nextline(" 30 nvme nvme_bootdev");
ut_assert_nextline(" 30 scsi scsi_bootdev");
ut_assert_nextline(" 30 spi_flash sf_bootdev");
ut_assert_nextline(" 40 usb usb_bootdev");
ut_assert_nextline(" 30 virtio virtio_bootdev");
ut_assert_nextline(" 6 ethernet eth_bootdev");
ut_assert_nextline(" 5 ide ide_bootdev");
ut_assert_nextline(" 2 mmc mmc_bootdev");
ut_assert_nextline(" 4 nvme nvme_bootdev");
ut_assert_nextline(" 4 scsi scsi_bootdev");
ut_assert_nextline(" 4 spi_flash sf_bootdev");
ut_assert_nextline(" 5 usb usb_bootdev");
ut_assert_nextline(" 4 virtio virtio_bootdev");
ut_assert_nextline("(total hunters: 8)");
ut_assert_console_end();
@ -284,17 +284,28 @@ static int bootdev_test_cmd_hunt(struct unit_test_state *uts)
ut_assertok(run_command("bootdev hunt -l", 0));
ut_assert_nextline("Prio Used Uclass Hunter");
ut_assert_nextlinen("----");
ut_assert_nextline(" 6 ethernet eth_bootdev");
ut_assert_skip_to_line("(total hunters: 8)");
ut_assert_console_end();
/* Use the MMC hunter and see that it updates */
ut_assertok(run_command("bootdev hunt mmc", 0));
ut_assertok(run_command("bootdev hunt -l", 0));
ut_assert_skip_to_line(" 5 ide ide_bootdev");
ut_assert_nextline(" 2 * mmc mmc_bootdev");
ut_assert_skip_to_line("(total hunters: 8)");
ut_assert_console_end();
/* Scan all hunters */
sandbox_set_eth_enable(false);
test_set_skip_delays(true);
ut_assertok(run_command("bootdev hunt", 0));
ut_assert_nextline("Hunting with: ethernet");
ut_assert_nextline("Hunting with: ide");
ut_assert_nextline("Bus 0: not available ");
ut_assert_nextline("Hunting with: mmc");
/* mmc hunter has already been used so should not run again */
ut_assert_nextline("Hunting with: nvme");
ut_assert_nextline("Hunting with: scsi");
ut_assert_nextline("scanning bus for devices...");
@ -309,14 +320,14 @@ static int bootdev_test_cmd_hunt(struct unit_test_state *uts)
ut_assertok(run_command("bootdev hunt -l", 0));
ut_assert_nextlinen("Prio");
ut_assert_nextlinen("----");
ut_assert_nextline(" 50 * ethernet eth_bootdev");
ut_assert_nextline(" 40 * ide ide_bootdev");
ut_assert_nextline(" 10 * mmc mmc_bootdev");
ut_assert_nextline(" 30 * nvme nvme_bootdev");
ut_assert_nextline(" 30 * scsi scsi_bootdev");
ut_assert_nextline(" 30 * spi_flash sf_bootdev");
ut_assert_nextline(" 40 * usb usb_bootdev");
ut_assert_nextline(" 30 * virtio virtio_bootdev");
ut_assert_nextline(" 6 * ethernet eth_bootdev");
ut_assert_nextline(" 5 * ide ide_bootdev");
ut_assert_nextline(" 2 * mmc mmc_bootdev");
ut_assert_nextline(" 4 * nvme nvme_bootdev");
ut_assert_nextline(" 4 * scsi scsi_bootdev");
ut_assert_nextline(" 4 * spi_flash sf_bootdev");
ut_assert_nextline(" 5 * usb usb_bootdev");
ut_assert_nextline(" 4 * virtio virtio_bootdev");
ut_assert_nextline("(total hunters: 8)");
ut_assert_console_end();
@ -370,14 +381,14 @@ static int bootdev_test_hunt_prio(struct unit_test_state *uts)
test_set_skip_delays(true);
console_record_reset_enable();
ut_assertok(bootdev_hunt_prio(BOOTDEVP_2_SCAN_FAST, false));
ut_assertok(bootdev_hunt_prio(BOOTDEVP_4_SCAN_FAST, false));
ut_assert_nextline("scanning bus for devices...");
ut_assert_skip_to_line(" Type: Hard Disk");
ut_assert_nextlinen(" Capacity:");
ut_assert_console_end();
/* now try a different priority, verbosely */
ut_assertok(bootdev_hunt_prio(BOOTDEVP_3_SCAN_SLOW, true));
ut_assertok(bootdev_hunt_prio(BOOTDEVP_5_SCAN_SLOW, true));
ut_assert_nextline("Hunting with: ide");
ut_assert_nextline("Bus 0: not available ");
ut_assert_nextline("Hunting with: usb");