From: Yuval Mintz Date: Wed, 5 Feb 2014 14:07:12 +0000 (+0200) Subject: bnx2x: Allow VF rss on higher PFs X-Git-Tag: upstream/snapshot3+hdmi~3444^2~39 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=656493d6e730690b76d6e74253d0208841cf4dd9;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git bnx2x: Allow VF rss on higher PFs bnx2x driver uses incorrect PF identifier to configure (in HW) the VF interrupt scheme; As a result, in multi-function mode the configuration for PFs with a high index (4+) will overflow and the PF will erroneously configure a single ISR scheme for its VFs. As a result, if such a VF uses multiple queues, interrupt generation will stop after VF receives an Rx packet or sends a Tx packet on a queue other than queue[0]. Signed-off-by: Yuval Mintz Signed-off-by: Ariel Elior Signed-off-by: David S. Miller --- diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c index aec5ef2..e42f48d 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c @@ -1446,12 +1446,12 @@ static void bnx2x_vf_igu_reset(struct bnx2x *bp, struct bnx2x_virtf *vf) if (vf->cfg_flags & VF_CFG_INT_SIMD) val |= IGU_VF_CONF_SINGLE_ISR_EN; val &= ~IGU_VF_CONF_PARENT_MASK; - val |= BP_FUNC(bp) << IGU_VF_CONF_PARENT_SHIFT; /* parent PF */ + val |= (BP_ABS_FUNC(bp) >> 1) << IGU_VF_CONF_PARENT_SHIFT; REG_WR(bp, IGU_REG_VF_CONFIGURATION, val); DP(BNX2X_MSG_IOV, - "value in IGU_REG_VF_CONFIGURATION of vf %d after write %x\n", - vf->abs_vfid, REG_RD(bp, IGU_REG_VF_CONFIGURATION)); + "value in IGU_REG_VF_CONFIGURATION of vf %d after write is 0x%08x\n", + vf->abs_vfid, val); bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));