netdev - [PATCH net-next 4/5] qed: Allow more than 16 VFs

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Message-ID: <1463312889-19351-5-git-send-email-Yuval.Mintz@qlogic.com>
Date:	Sun, 15 May 2016 14:48:08 +0300
From:	Yuval Mintz <Yuval.Mintz@...gic.com>
To:	<davem@...emloft.net>, <netdev@...r.kernel.org>
CC:	Yuval Mintz <Yuval.Mintz@...gic.com>
Subject: [PATCH net-next 4/5] qed: Allow more than 16 VFs

In multi-function modes, PFs are currently limited to using 16 VFs -
But that limitation would also currently apply in case there's a single
PCI function exposed, where no such restriction should have existed.

This lifts the restriction for the default mode; User should be able
to start the maximum number of VFs as appear in the PCI config space.

Signed-off-by: Yuval Mintz <Yuval.Mintz@...gic.com>
---
 drivers/net/ethernet/qlogic/qed/qed_sriov.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/ethernet/qlogic/qed/qed_sriov.c b/drivers/net/ethernet/qlogic/qed/qed_sriov.c
index a977f39..c325ee8 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_sriov.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_sriov.c
@@ -3099,6 +3099,9 @@ static int qed_sriov_enable(struct qed_dev *cdev, int num)
 			goto err;
 		}
 
+		if (IS_MF_DEFAULT(hwfn))
+			limit = MAX_NUM_VFS_BB / hwfn->num_funcs_on_engine;
+
 		memset(&sb_cnt_info, 0, sizeof(sb_cnt_info));
 		qed_int_get_num_sbs(hwfn, &sb_cnt_info);
 		num_sbs = min_t(int, sb_cnt_info.sb_free_blk, limit);
-- 
1.9.3