| Message ID | 20231206010114.2259388-13-jesse.brandeburg@intel.com (mailing list archive) |
|---|---|
| State | Awaiting Upstream |
| Delegated to: | Netdev Maintainers |
| Headers | show |
| Series | intel: use bitfield operations | expand |
| Context | Check | Description |
|---|---|---|
| netdev/tree_selection | success | Guessing tree name failed - patch did not apply, async |
> -----Original Message----- > From: Intel-wired-lan <intel-wired-lan-bounces@osuosl.org> On Behalf Of > Jesse Brandeburg > Sent: Wednesday, December 6, 2023 2:01 AM > To: intel-wired-lan@lists.osuosl.org > Cc: Kitszel, Przemyslaw <przemyslaw.kitszel@intel.com>; Brandeburg, Jesse > <jesse.brandeburg@intel.com>; Julia Lawall <Julia.Lawall@inria.fr>; Lobakin, > Aleksander <aleksander.lobakin@intel.com>; marcin.szycik@linux.intel.com; > horms@kernel.org; netdev@vger.kernel.org > Subject: [Intel-wired-lan] [PATCH iwl-next v2 12/15] iavf: field get conversion > > Refactor the iavf driver to use FIELD_GET() for mask and shift reads, which > reduces lines of code and adds clarity of intent. > > This code was generated by the following coccinelle/spatch script and then > manually repaired in a later patch. > > @get@ > constant shift,mask; > type T; > expression a; > @@ > -((T)((a) & mask) >> shift) > +FIELD_GET(mask, a) > > and applied via: > spatch --sp-file field_prep.cocci --in-place --dir \ drivers/net/ethernet/intel/ > > Cc: Julia Lawall <Julia.Lawall@inria.fr> > Reviewed-by: Marcin Szycik <marcin.szycik@linux.intel.com> > Reviewed-by: Simon Horman <horms@kernel.org> > Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> > --- > .../net/ethernet/intel/iavf/iavf_ethtool.c | 3 +-- > drivers/net/ethernet/intel/iavf/iavf_txrx.c | 20 +++++++------------ > 2 files changed, 8 insertions(+), 15 deletions(-) > > diff --git a/drivers/net/ethernet/intel/iavf/iavf_ethtool.c > b/drivers/net/ethernet/intel/iavf/iavf_ethtool.c > index 11150bdc63d0..90d8f1fcc3aa 100644 > --- a/drivers/net/ethernet/intel/iavf/iavf_ethtool.c > +++ b/drivers/net/ethernet/intel/iavf/iavf_ethtool.c Tested-by: Rafal Romanowski <rafal.romanowski@intel.com>
diff --git a/drivers/net/ethernet/intel/iavf/iavf_ethtool.c b/drivers/net/ethernet/intel/iavf/iavf_ethtool.c index 11150bdc63d0..90d8f1fcc3aa 100644 --- a/drivers/net/ethernet/intel/iavf/iavf_ethtool.c +++ b/drivers/net/ethernet/intel/iavf/iavf_ethtool.c @@ -1020,8 +1020,7 @@ iavf_parse_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp, #define IAVF_USERDEF_FLEX_MAX_OFFS_VAL 504 flex = &fltr->flex_words[cnt++]; flex->word = value & IAVF_USERDEF_FLEX_WORD_M; - flex->offset = (value & IAVF_USERDEF_FLEX_OFFS_M) >> - IAVF_USERDEF_FLEX_OFFS_S; + flex->offset = FIELD_GET(IAVF_USERDEF_FLEX_OFFS_M, value); if (flex->offset > IAVF_USERDEF_FLEX_MAX_OFFS_VAL) return -EINVAL; } diff --git a/drivers/net/ethernet/intel/iavf/iavf_txrx.c b/drivers/net/ethernet/intel/iavf/iavf_txrx.c index fb7edba9c2f8..b71484c87a84 100644 --- a/drivers/net/ethernet/intel/iavf/iavf_txrx.c +++ b/drivers/net/ethernet/intel/iavf/iavf_txrx.c @@ -989,11 +989,9 @@ static void iavf_rx_checksum(struct iavf_vsi *vsi, u64 qword; qword = le64_to_cpu(rx_desc->wb.qword1.status_error_len); - ptype = (qword & IAVF_RXD_QW1_PTYPE_MASK) >> IAVF_RXD_QW1_PTYPE_SHIFT; - rx_error = (qword & IAVF_RXD_QW1_ERROR_MASK) >> - IAVF_RXD_QW1_ERROR_SHIFT; - rx_status = (qword & IAVF_RXD_QW1_STATUS_MASK) >> - IAVF_RXD_QW1_STATUS_SHIFT; + ptype = FIELD_GET(IAVF_RXD_QW1_PTYPE_MASK, qword); + rx_error = FIELD_GET(IAVF_RXD_QW1_ERROR_MASK, qword); + rx_status = FIELD_GET(IAVF_RXD_QW1_STATUS_MASK, qword); decoded = decode_rx_desc_ptype(ptype); skb->ip_summed = CHECKSUM_NONE; @@ -1534,8 +1532,7 @@ static int iavf_clean_rx_irq(struct iavf_ring *rx_ring, int budget) if (!iavf_test_staterr(rx_desc, IAVF_RXD_DD)) break; - size = (qword & IAVF_RXD_QW1_LENGTH_PBUF_MASK) >> - IAVF_RXD_QW1_LENGTH_PBUF_SHIFT; + size = FIELD_GET(IAVF_RXD_QW1_LENGTH_PBUF_MASK, qword); iavf_trace(clean_rx_irq, rx_ring, rx_desc, skb); rx_buffer = iavf_get_rx_buffer(rx_ring, size); @@ -1582,8 +1579,7 @@ static int iavf_clean_rx_irq(struct iavf_ring *rx_ring, int budget) total_rx_bytes += skb->len; qword = le64_to_cpu(rx_desc->wb.qword1.status_error_len); - rx_ptype = (qword & IAVF_RXD_QW1_PTYPE_MASK) >> - IAVF_RXD_QW1_PTYPE_SHIFT; + rx_ptype = FIELD_GET(IAVF_RXD_QW1_PTYPE_MASK, qword); /* populate checksum, VLAN, and protocol */ iavf_process_skb_fields(rx_ring, rx_desc, skb, rx_ptype); @@ -2291,8 +2287,7 @@ static void iavf_tx_map(struct iavf_ring *tx_ring, struct sk_buff *skb, if (tx_flags & IAVF_TX_FLAGS_HW_VLAN) { td_cmd |= IAVF_TX_DESC_CMD_IL2TAG1; - td_tag = (tx_flags & IAVF_TX_FLAGS_VLAN_MASK) >> - IAVF_TX_FLAGS_VLAN_SHIFT; + td_tag = FIELD_GET(IAVF_TX_FLAGS_VLAN_MASK, tx_flags); } first->tx_flags = tx_flags; @@ -2468,8 +2463,7 @@ static netdev_tx_t iavf_xmit_frame_ring(struct sk_buff *skb, if (tx_flags & IAVF_TX_FLAGS_HW_OUTER_SINGLE_VLAN) { cd_type_cmd_tso_mss |= IAVF_TX_CTX_DESC_IL2TAG2 << IAVF_TXD_CTX_QW1_CMD_SHIFT; - cd_l2tag2 = (tx_flags & IAVF_TX_FLAGS_VLAN_MASK) >> - IAVF_TX_FLAGS_VLAN_SHIFT; + cd_l2tag2 = FIELD_GET(IAVF_TX_FLAGS_VLAN_MASK, tx_flags); } /* obtain protocol of skb */