netdev - [PATCH net 1/5] net/mlx4_core: Avoid failing the interrupts test

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Message-Id: <1444307179-16105-2-git-send-email-ogerlitz@mellanox.com>
Date:	Thu,  8 Oct 2015 15:26:15 +0300
From:	Or Gerlitz <ogerlitz@...lanox.com>
To:	"David S. Miller" <davem@...emloft.net>
Cc:	netdev@...r.kernel.org, Achiad Shochat <achiad@...lanox.com>,
	Amir Vadai <amirv@...lanox.com>,
	Carol L Soto <clsoto@...ux.vnet.ibm.com>,
	Or Gerlitz <ogerlitz@...lanox.com>
Subject: [PATCH net 1/5] net/mlx4_core: Avoid failing the interrupts test

From: Carol L Soto <clsoto@...ux.vnet.ibm.com>

Test interrupts fails if not all completion vectors called
request_irq. This case happens if only mlx4_en is loaded and
we have more completion vectors than rx rings.

Fixes: c66fa19c405a ('net/mlx4: Add EQ pool')
Signed-off-by: Carol L Soto <clsoto@...ux.vnet.ibm.com>
Acked-by: Matan Barak <matanb@...lanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@...lanox.com>
---
 drivers/net/ethernet/mellanox/mlx4/eq.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlx4/eq.c b/drivers/net/ethernet/mellanox/mlx4/eq.c
index 8e81e53..c344884 100644
--- a/drivers/net/ethernet/mellanox/mlx4/eq.c
+++ b/drivers/net/ethernet/mellanox/mlx4/eq.c
@@ -1364,6 +1364,10 @@ int mlx4_test_interrupts(struct mlx4_dev *dev)
 	 * and performing a NOP command
 	 */
 	for(i = 0; !err && (i < dev->caps.num_comp_vectors); ++i) {
+		/* Make sure request_irq was called */
+		if (!priv->eq_table.eq[i].have_irq)
+			continue;
+
 		/* Temporary use polling for command completions */
 		mlx4_cmd_use_polling(dev);
 
-- 
2.3.7

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