On Tue, Feb 16, 2021 at 05:09:36PM +0530, Geetha sowjanya wrote:
> This patch fixes references to uninitialized variables and
> debugfs entry name for CN10K platform and HW_TSO flag check.
>
> Fixes: 3ad3f8f93c81 ("octeontx2-af: cn10k: MAC internal loopback support").
> Signed-off-by: Geetha sowjanya <gak...@marvell.com>
> Signed-off-by: Sunil Goutham <sgout...@marvell.com>
"---" needs to be here.
Thanks
>
> v1-v2
> - Clear HW_TSO flag for 96xx B0 version.
>
> This patch fixes the bug introduced by the commit
> 3ad3f8f93c81 ("octeontx2-af: cn10k: MAC internal loopback support").
> These changes are not yet merged into net branch, hence submitting
> to net-next.
>
> ---
> drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c | 2 ++
> .../net/ethernet/marvell/octeontx2/af/rvu_debugfs.c | 2 +-
> .../net/ethernet/marvell/octeontx2/nic/otx2_common.h | 3 +++
> .../net/ethernet/marvell/octeontx2/nic/otx2_txrx.c | 11 ++++++-----
> 4 files changed, 12 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c
> b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c
> index 3a1809c28e83..e668e482383a 100644
> --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c
> +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c
> @@ -722,12 +722,14 @@ u32 rvu_cgx_get_fifolen(struct rvu *rvu)
>
> static int rvu_cgx_config_intlbk(struct rvu *rvu, u16 pcifunc, bool en)
> {
> + int pf = rvu_get_pf(pcifunc);
> struct mac_ops *mac_ops;
> u8 cgx_id, lmac_id;
>
> if (!is_cgx_config_permitted(rvu, pcifunc))
> return -EPERM;
>
> + rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
> mac_ops = get_mac_ops(rvu_cgx_pdata(cgx_id, rvu));
>
> return mac_ops->mac_lmac_intl_lbk(rvu_cgx_pdata(cgx_id, rvu),
> diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c
> b/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c
> index 48a84c65804c..094124b695dc 100644
> --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c
> +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c
> @@ -2432,7 +2432,7 @@ void rvu_dbg_init(struct rvu *rvu)
> debugfs_create_file("rvu_pf_cgx_map", 0444, rvu->rvu_dbg.root,
> rvu, &rvu_dbg_rvu_pf_cgx_map_fops);
> else
> - debugfs_create_file("rvu_pf_cgx_map", 0444, rvu->rvu_dbg.root,
> + debugfs_create_file("rvu_pf_rpm_map", 0444, rvu->rvu_dbg.root,
> rvu, &rvu_dbg_rvu_pf_cgx_map_fops);
>
> create:
> diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h
> b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h
> index 4c472646a0ac..f14d388efb51 100644
> --- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h
> +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h
> @@ -407,6 +407,9 @@ static inline void otx2_setup_dev_hw_settings(struct
> otx2_nic *pfvf)
> pfvf->hw.rq_skid = 600;
> pfvf->qset.rqe_cnt = Q_COUNT(Q_SIZE_1K);
> }
> + if (is_96xx_B0(pfvf->pdev))
> + __clear_bit(HW_TSO, &hw->cap_flag);
> +
> if (!is_dev_otx2(pfvf->pdev)) {
> __set_bit(CN10K_MBOX, &hw->cap_flag);
> __set_bit(CN10K_LMTST, &hw->cap_flag);
> diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.c
> b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.c
> index 3f778fc054b5..22ec03a618b1 100644
> --- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.c
> +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.c
> @@ -816,22 +816,23 @@ static bool is_hw_tso_supported(struct otx2_nic *pfvf,
> {
> int payload_len, last_seg_size;
>
> + if (test_bit(HW_TSO, &pfvf->hw.cap_flag))
> + return true;
> +
> + /* On 96xx A0, HW TSO not supported */
> + if (!is_96xx_B0(pfvf->pdev))
> + return false;
>
> /* HW has an issue due to which when the payload of the last LSO
> * segment is shorter than 16 bytes, some header fields may not
> * be correctly modified, hence don't offload such TSO segments.
> */
> - if (!is_96xx_B0(pfvf->pdev))
> - return true;
>
> payload_len = skb->len - (skb_transport_offset(skb) + tcp_hdrlen(skb));
> last_seg_size = payload_len % skb_shinfo(skb)->gso_size;
> if (last_seg_size && last_seg_size < 16)
> return false;
>
> - if (!test_bit(HW_TSO, &pfvf->hw.cap_flag))
> - return false;
> -
> return true;
> }
>
> --
> 2.17.1
>
