From cd33e3d5e9d332a64047bc8f4fe011c2313d0a86 Mon Sep 17 00:00:00 2001 From: Alex Elder Date: Thu, 11 Jun 2020 14:48:32 -0500 Subject: [PATCH] net: ipa: program upper nibbles of sequencer type 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 Signed-off-by: David S. Miller --- 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 2825dca23ec4e..bf3e8ced3ee0a 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 3b8106aa277a0..0a688d8c1d7cf 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 -- 2.39.5