[dpdk-dev] [PATCH v2] bus/pci: set boot-up log prints to absolute minimum

[<jerinj@marvell.com>]

From: Jerin Jacob <jerinj@marvell.com>

Some machines may have a lot of PCI devices and all of them are
not bound to DPDK. In such case the logs from EAL creates a lot of
clutter on boot-up, typically one needs to scroll the screen to
find other issues in boot-up.

This patch changes the following to reduce the clutter in
the default boot-up logs.

- Change the log-level of PCI probes to `debug`
- Introduce new driver probe as `info` log-level for the successful probe.

Signed-off-by: Jerin Jacob <jerinj@marvell.com>
---
v2:
- Introduce new driver probe as `info` log-level for the successful
  probe(Thomas)

 drivers/bus/pci/pci_common.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/bus/pci/pci_common.c b/drivers/bus/pci/pci_common.c
index 3f5542076..6585a4b47 100644
--- a/drivers/bus/pci/pci_common.c
+++ b/drivers/bus/pci/pci_common.c
@@ -136,7 +136,7 @@ rte_pci_probe_one_driver(struct rte_pci_driver *dr,
 		/* Match of device and driver failed */
 		return 1;

-	RTE_LOG(INFO, EAL, "PCI device "PCI_PRI_FMT" on NUMA socket %i\n",
+	RTE_LOG(DEBUG, EAL, "PCI device "PCI_PRI_FMT" on NUMA socket %i\n",
 			loc->domain, loc->bus, loc->devid, loc->function,
 			dev->device.numa_node);

@@ -161,7 +161,7 @@ rte_pci_probe_one_driver(struct rte_pci_driver *dr,
 		return -EEXIST;
 	}

-	RTE_LOG(INFO, EAL, "  probe driver: %x:%x %s\n", dev->id.vendor_id,
+	RTE_LOG(DEBUG, EAL, "  probe driver: %x:%x %s\n", dev->id.vendor_id,
 		dev->id.device_id, dr->driver.name);

 	/*
@@ -195,6 +195,10 @@ rte_pci_probe_one_driver(struct rte_pci_driver *dr,
 		}
 	}

+	RTE_LOG(INFO, EAL, "Probe PCI driver: %s (%x:%x) device: "PCI_PRI_FMT" (socket %i)\n",
+			dr->driver.name, dev->id.vendor_id, dev->id.device_id,
+			loc->domain, loc->bus, loc->devid, loc->function,
+			dev->device.numa_node);
 	/* call the driver probe() function */
 	ret = dr->probe(dr, dev);
 	if (already_probed)
--
2.26.2