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Date: Tue, 5 Dec 2023 17:01:14 -0800
From: Jesse Brandeburg <jesse.brandeburg@...el.com>
To: intel-wired-lan@...ts.osuosl.org
Cc: Jesse Brandeburg <jesse.brandeburg@...el.com>,
netdev@...r.kernel.org,
aleksander.lobakin@...el.com,
przemyslaw.kitszel@...el.com,
horms@...nel.org,
marcin.szycik@...ux.intel.com
Subject: [PATCH iwl-next v2 15/15] idpf: refactor some missing field get/prep conversions
Most of idpf correctly uses FIELD_GET and FIELD_PREP, but a couple spots
were missed so fix those.
Automated conversion with coccinelle script and manually fixed up,
including audits for opportunities to convert to {get,encode,replace}
bits functions.
Add conversions to le16_get/encode/replace_bits where appropriate. And
in one place fix up a cast from a u16 to a u16.
@prep2@
constant shift,mask;
type T;
expression a;
@@
-(((T)(a) << shift) & mask)
+FIELD_PREP(mask, a)
@prep@
constant shift,mask;
type T;
expression a;
@@
-((T)((a) << shift) & mask)
+FIELD_PREP(mask, a)
@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: Alexander Lobakin <aleksander.lobakin@...el.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@...el.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@...el.com>
---
v2: merged this patch into larger series, modified after Olek's comments
to include bits encoding where changing lines for prep or get.
---
.../ethernet/intel/idpf/idpf_singleq_txrx.c | 7 +--
drivers/net/ethernet/intel/idpf/idpf_txrx.c | 58 +++++++++----------
2 files changed, 30 insertions(+), 35 deletions(-)
diff --git a/drivers/net/ethernet/intel/idpf/idpf_singleq_txrx.c b/drivers/net/ethernet/intel/idpf/idpf_singleq_txrx.c
index 81288a17da2a..447753495c53 100644
--- a/drivers/net/ethernet/intel/idpf/idpf_singleq_txrx.c
+++ b/drivers/net/ethernet/intel/idpf/idpf_singleq_txrx.c
@@ -328,10 +328,9 @@ static void idpf_tx_singleq_build_ctx_desc(struct idpf_queue *txq,
if (offload->tso_segs) {
qw1 |= IDPF_TX_CTX_DESC_TSO << IDPF_TXD_CTX_QW1_CMD_S;
- qw1 |= ((u64)offload->tso_len << IDPF_TXD_CTX_QW1_TSO_LEN_S) &
- IDPF_TXD_CTX_QW1_TSO_LEN_M;
- qw1 |= ((u64)offload->mss << IDPF_TXD_CTX_QW1_MSS_S) &
- IDPF_TXD_CTX_QW1_MSS_M;
+ qw1 |= FIELD_PREP(IDPF_TXD_CTX_QW1_TSO_LEN_M,
+ offload->tso_len);
+ qw1 |= FIELD_PREP(IDPF_TXD_CTX_QW1_MSS_M, offload->mss);
u64_stats_update_begin(&txq->stats_sync);
u64_stats_inc(&txq->q_stats.tx.lso_pkts);
diff --git a/drivers/net/ethernet/intel/idpf/idpf_txrx.c b/drivers/net/ethernet/intel/idpf/idpf_txrx.c
index 1f728a9004d9..725f2477f979 100644
--- a/drivers/net/ethernet/intel/idpf/idpf_txrx.c
+++ b/drivers/net/ethernet/intel/idpf/idpf_txrx.c
@@ -505,9 +505,9 @@ static void idpf_rx_post_buf_refill(struct idpf_sw_queue *refillq, u16 buf_id)
/* store the buffer ID and the SW maintained GEN bit to the refillq */
refillq->ring[nta] =
- ((buf_id << IDPF_RX_BI_BUFID_S) & IDPF_RX_BI_BUFID_M) |
- (!!(test_bit(__IDPF_Q_GEN_CHK, refillq->flags)) <<
- IDPF_RX_BI_GEN_S);
+ FIELD_PREP(IDPF_RX_BI_BUFID_M, buf_id) |
+ FIELD_PREP(IDPF_RX_BI_GEN_M,
+ test_bit(__IDPF_Q_GEN_CHK, refillq->flags));
if (unlikely(++nta == refillq->desc_count)) {
nta = 0;
@@ -1825,14 +1825,14 @@ static bool idpf_tx_clean_complq(struct idpf_queue *complq, int budget,
u16 gen;
/* if the descriptor isn't done, no work yet to do */
- gen = (le16_to_cpu(tx_desc->qid_comptype_gen) &
- IDPF_TXD_COMPLQ_GEN_M) >> IDPF_TXD_COMPLQ_GEN_S;
+ gen = le16_get_bits(tx_desc->qid_comptype_gen,
+ IDPF_TXD_COMPLQ_GEN_M);
if (test_bit(__IDPF_Q_GEN_CHK, complq->flags) != gen)
break;
/* Find necessary info of TX queue to clean buffers */
- rel_tx_qid = (le16_to_cpu(tx_desc->qid_comptype_gen) &
- IDPF_TXD_COMPLQ_QID_M) >> IDPF_TXD_COMPLQ_QID_S;
+ rel_tx_qid = le16_get_bits(tx_desc->qid_comptype_gen,
+ IDPF_TXD_COMPLQ_QID_M);
if (rel_tx_qid >= complq->txq_grp->num_txq ||
!complq->txq_grp->txqs[rel_tx_qid]) {
dev_err(&complq->vport->adapter->pdev->dev,
@@ -1842,9 +1842,8 @@ static bool idpf_tx_clean_complq(struct idpf_queue *complq, int budget,
tx_q = complq->txq_grp->txqs[rel_tx_qid];
/* Determine completion type */
- ctype = (le16_to_cpu(tx_desc->qid_comptype_gen) &
- IDPF_TXD_COMPLQ_COMPL_TYPE_M) >>
- IDPF_TXD_COMPLQ_COMPL_TYPE_S;
+ ctype = le16_get_bits(tx_desc->qid_comptype_gen,
+ IDPF_TXD_COMPLQ_COMPL_TYPE_M);
switch (ctype) {
case IDPF_TXD_COMPLT_RE:
hw_head = le16_to_cpu(tx_desc->q_head_compl_tag.q_head);
@@ -1945,11 +1944,10 @@ void idpf_tx_splitq_build_ctb(union idpf_tx_flex_desc *desc,
u16 td_cmd, u16 size)
{
desc->q.qw1.cmd_dtype =
- cpu_to_le16(params->dtype & IDPF_FLEX_TXD_QW1_DTYPE_M);
+ le16_encode_bits(params->dtype, IDPF_FLEX_TXD_QW1_DTYPE_M);
desc->q.qw1.cmd_dtype |=
- cpu_to_le16((td_cmd << IDPF_FLEX_TXD_QW1_CMD_S) &
- IDPF_FLEX_TXD_QW1_CMD_M);
- desc->q.qw1.buf_size = cpu_to_le16((u16)size);
+ le16_encode_bits(td_cmd, IDPF_FLEX_TXD_QW1_CMD_M);
+ desc->q.qw1.buf_size = cpu_to_le16(size);
desc->q.qw1.l2tags.l2tag1 = cpu_to_le16(params->td_tag);
}
@@ -2843,8 +2841,9 @@ static void idpf_rx_splitq_extract_csum_bits(struct virtchnl2_rx_flex_desc_adv_n
qword1);
csum->ipv6exadd = FIELD_GET(VIRTCHNL2_RX_FLEX_DESC_ADV_STATUS0_IPV6EXADD_M,
qword0);
- csum->raw_csum_inv = FIELD_GET(VIRTCHNL2_RX_FLEX_DESC_ADV_RAW_CSUM_INV_M,
- le16_to_cpu(rx_desc->ptype_err_fflags0));
+ csum->raw_csum_inv =
+ le16_get_bits(rx_desc->ptype_err_fflags0,
+ VIRTCHNL2_RX_FLEX_DESC_ADV_RAW_CSUM_INV_M);
csum->raw_csum = le16_to_cpu(rx_desc->misc.raw_cs);
}
@@ -2938,8 +2937,8 @@ static int idpf_rx_process_skb_fields(struct idpf_queue *rxq,
struct idpf_rx_ptype_decoded decoded;
u16 rx_ptype;
- rx_ptype = FIELD_GET(VIRTCHNL2_RX_FLEX_DESC_ADV_PTYPE_M,
- le16_to_cpu(rx_desc->ptype_err_fflags0));
+ rx_ptype = le16_get_bits(rx_desc->ptype_err_fflags0,
+ VIRTCHNL2_RX_FLEX_DESC_ADV_PTYPE_M);
decoded = rxq->vport->rx_ptype_lkup[rx_ptype];
/* If we don't know the ptype we can't do anything else with it. Just
@@ -2953,8 +2952,8 @@ static int idpf_rx_process_skb_fields(struct idpf_queue *rxq,
skb->protocol = eth_type_trans(skb, rxq->vport->netdev);
- if (FIELD_GET(VIRTCHNL2_RX_FLEX_DESC_ADV_RSC_M,
- le16_to_cpu(rx_desc->hdrlen_flags)))
+ if (le16_get_bits(rx_desc->hdrlen_flags,
+ VIRTCHNL2_RX_FLEX_DESC_ADV_RSC_M))
return idpf_rx_rsc(rxq, skb, rx_desc, &decoded);
idpf_rx_splitq_extract_csum_bits(rx_desc, &csum_bits);
@@ -3148,8 +3147,8 @@ static int idpf_rx_splitq_clean(struct idpf_queue *rxq, int budget)
dma_rmb();
/* if the descriptor isn't done, no work yet to do */
- gen_id = le16_to_cpu(rx_desc->pktlen_gen_bufq_id);
- gen_id = FIELD_GET(VIRTCHNL2_RX_FLEX_DESC_ADV_GEN_M, gen_id);
+ gen_id = le16_get_bits(rx_desc->pktlen_gen_bufq_id,
+ VIRTCHNL2_RX_FLEX_DESC_ADV_GEN_M);
if (test_bit(__IDPF_Q_GEN_CHK, rxq->flags) != gen_id)
break;
@@ -3164,9 +3163,8 @@ static int idpf_rx_splitq_clean(struct idpf_queue *rxq, int budget)
continue;
}
- pkt_len = le16_to_cpu(rx_desc->pktlen_gen_bufq_id);
- pkt_len = FIELD_GET(VIRTCHNL2_RX_FLEX_DESC_ADV_LEN_PBUF_M,
- pkt_len);
+ pkt_len = le16_get_bits(rx_desc->pktlen_gen_bufq_id,
+ VIRTCHNL2_RX_FLEX_DESC_ADV_LEN_PBUF_M);
hbo = FIELD_GET(VIRTCHNL2_RX_FLEX_DESC_ADV_STATUS0_HBO_M,
rx_desc->status_err0_qw1);
@@ -3183,14 +3181,12 @@ static int idpf_rx_splitq_clean(struct idpf_queue *rxq, int budget)
goto bypass_hsplit;
}
- hdr_len = le16_to_cpu(rx_desc->hdrlen_flags);
- hdr_len = FIELD_GET(VIRTCHNL2_RX_FLEX_DESC_ADV_LEN_HDR_M,
- hdr_len);
+ hdr_len = le16_get_bits(rx_desc->hdrlen_flags,
+ VIRTCHNL2_RX_FLEX_DESC_ADV_LEN_HDR_M);
bypass_hsplit:
- bufq_id = le16_to_cpu(rx_desc->pktlen_gen_bufq_id);
- bufq_id = FIELD_GET(VIRTCHNL2_RX_FLEX_DESC_ADV_BUFQ_ID_M,
- bufq_id);
+ bufq_id = le16_get_bits(rx_desc->pktlen_gen_bufq_id,
+ VIRTCHNL2_RX_FLEX_DESC_ADV_BUFQ_ID_M);
rxq_set = container_of(rxq, struct idpf_rxq_set, rxq);
if (!bufq_id)
--
2.39.3
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