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From: Alex Elder <elder@linaro.org>
To: davem@davemloft.net, kuba@kernel.org
Cc: evgreen@chromium.org, subashab@codeaurora.org,
	cpratapa@codeaurora.org, bjorn.andersson@linaro.org,
	netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH net 3/5] net: ipa: program upper nibbles of sequencer type
Date: Wed, 10 Jun 2020 14:53:30 -0500	[thread overview]
Message-ID: <20200610195332.2612233-4-elder@linaro.org> (raw)
In-Reply-To: <20200610195332.2612233-1-elder@linaro.org>

The upper two nibbles of the sequencer type were not used for
SDM845, and were assumed to be 0.  But for SC7180 they are used, and
so they must be programmed by ipa_endpoint_init_seq().  Fix this bug.

IPA_SEQ_PKT_PROCESS_NO_DEC_NO_UCP_DMAP doesn't have a descriptive
comment, so add one.

Signed-off-by: Alex Elder <elder@linaro.org>
---
 drivers/net/ipa/ipa_endpoint.c | 6 ++++--
 drivers/net/ipa/ipa_reg.h      | 2 ++
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ipa/ipa_endpoint.c b/drivers/net/ipa/ipa_endpoint.c
index 6015fabb4df5..59313ced7036 100644
--- a/drivers/net/ipa/ipa_endpoint.c
+++ b/drivers/net/ipa/ipa_endpoint.c
@@ -699,10 +699,12 @@ static void ipa_endpoint_init_seq(struct ipa_endpoint *endpoint)
 	u32 seq_type = endpoint->seq_type;
 	u32 val = 0;
 
+	/* Sequencer type is made up of four nibbles */
 	val |= u32_encode_bits(seq_type & 0xf, HPS_SEQ_TYPE_FMASK);
 	val |= u32_encode_bits((seq_type >> 4) & 0xf, DPS_SEQ_TYPE_FMASK);
-	/* HPS_REP_SEQ_TYPE is 0 */
-	/* DPS_REP_SEQ_TYPE is 0 */
+	/* The second two apply to replicated packets */
+	val |= u32_encode_bits((seq_type >> 8) & 0xf, HPS_REP_SEQ_TYPE_FMASK);
+	val |= u32_encode_bits((seq_type >> 12) & 0xf, DPS_REP_SEQ_TYPE_FMASK);
 
 	iowrite32(val, endpoint->ipa->reg_virt + offset);
 }
diff --git a/drivers/net/ipa/ipa_reg.h b/drivers/net/ipa/ipa_reg.h
index 3b8106aa277a..0a688d8c1d7c 100644
--- a/drivers/net/ipa/ipa_reg.h
+++ b/drivers/net/ipa/ipa_reg.h
@@ -455,6 +455,8 @@ enum ipa_mode {
  *	second packet processing pass + no decipher + microcontroller
  * @IPA_SEQ_DMA_DEC:		DMA + cipher/decipher
  * @IPA_SEQ_DMA_COMP_DECOMP:	DMA + compression/decompression
+ * @IPA_SEQ_PKT_PROCESS_NO_DEC_NO_UCP_DMAP:
+ *	packet processing + no decipher + no uCP + HPS REP DMA parser
  * @IPA_SEQ_INVALID:		invalid sequencer type
  *
  * The values defined here are broken into 4-bit nibbles that are written
-- 
2.25.1


  parent reply	other threads:[~2020-06-10 19:54 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-10 19:53 [PATCH net 0/5] net: ipa: endpoint configuration fixes Alex Elder
2020-06-10 19:53 ` [PATCH net 1/5] net: ipa: program metadata mask differently Alex Elder
     [not found]   ` <202006110832.hKzHUsMH%lkp@intel.com>
2020-06-11 19:18     ` Alex Elder
2020-06-10 19:53 ` [PATCH net 2/5] net: ipa: fix modem LAN RX endpoint id Alex Elder
2020-06-10 19:53 ` Alex Elder [this message]
2020-06-10 19:53 ` [PATCH net 4/5] net: ipa: header pad field only valid for AP->modem endpoint Alex Elder
2020-06-10 19:53 ` [PATCH net 5/5] net: ipa: warn if gsi_trans structure is too big Alex Elder
2020-06-10 23:36   ` David Miller
2020-06-11 12:58     ` Alex Elder

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