From 882716604ecf388b2ff09bc76eb2a752aa9cc76b Mon Sep 17 00:00:00 2001 From: Jesse Brandeburg Date: Tue, 28 Oct 2008 13:21:51 -0700 Subject: [PATCH] pktgen: fix multiple queue warning when testing the new pktgen module with multiple queues and ixgbe with: pgset "flag QUEUE_MAP_CPU" I found that I was getting errors in dmesg like: pktgen: WARNING: QUEUE_MAP_CPU disabled because CPU count (8) exceeds number <4>pktgen: WARNING: of tx queues (8) on eth15 you'll note, 8 really doesn't exceed 8. This patch seemed to fix the logic errors and also the attempts at limiting line length in printk (which didn't work anyway) Signed-off-by: Jesse Brandeburg Signed-off-by: Jeff Kirsher Signed-off-by: Robert Olsson Signed-off-by: David S. Miller --- net/core/pktgen.c | 27 +++++++++++++-------------- 1 file changed, 13 insertions(+), 14 deletions(-) diff --git a/net/core/pktgen.c b/net/core/pktgen.c index 99f656d35b4f..a47f5bad110d 100644 --- a/net/core/pktgen.c +++ b/net/core/pktgen.c @@ -1973,28 +1973,27 @@ static void pktgen_setup_inject(struct pktgen_dev *pkt_dev) /* make sure that we don't pick a non-existing transmit queue */ ntxq = pkt_dev->odev->real_num_tx_queues; - if (ntxq <= num_online_cpus() && (pkt_dev->flags & F_QUEUE_MAP_CPU)) { + if (ntxq > num_online_cpus() && (pkt_dev->flags & F_QUEUE_MAP_CPU)) { printk(KERN_WARNING "pktgen: WARNING: QUEUE_MAP_CPU " - "disabled because CPU count (%d) exceeds number ", - num_online_cpus()); - printk(KERN_WARNING "pktgen: WARNING: of tx queues " - "(%d) on %s \n", ntxq, pkt_dev->odev->name); + "disabled because CPU count (%d) exceeds number " + "of tx queues (%d) on %s\n", num_online_cpus(), ntxq, + pkt_dev->odev->name); pkt_dev->flags &= ~F_QUEUE_MAP_CPU; } if (ntxq <= pkt_dev->queue_map_min) { printk(KERN_WARNING "pktgen: WARNING: Requested " - "queue_map_min (%d) exceeds number of tx\n", - pkt_dev->queue_map_min); - printk(KERN_WARNING "pktgen: WARNING: queues (%d) on " - "%s, resetting\n", ntxq, pkt_dev->odev->name); + "queue_map_min (zero-based) (%d) exceeds valid range " + "[0 - %d] for (%d) queues on %s, resetting\n", + pkt_dev->queue_map_min, (ntxq ?: 1)- 1, ntxq, + pkt_dev->odev->name); pkt_dev->queue_map_min = ntxq - 1; } - if (ntxq <= pkt_dev->queue_map_max) { + if (pkt_dev->queue_map_max >= ntxq) { printk(KERN_WARNING "pktgen: WARNING: Requested " - "queue_map_max (%d) exceeds number of tx\n", - pkt_dev->queue_map_max); - printk(KERN_WARNING "pktgen: WARNING: queues (%d) on " - "%s, resetting\n", ntxq, pkt_dev->odev->name); + "queue_map_max (zero-based) (%d) exceeds valid range " + "[0 - %d] for (%d) queues on %s, resetting\n", + pkt_dev->queue_map_max, (ntxq ?: 1)- 1, ntxq, + pkt_dev->odev->name); pkt_dev->queue_map_max = ntxq - 1; } -- 2.30.2