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 <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ipa/ipa_endpoint.c b/drivers/net/ipa/ipa_endpoint.c
index 2825dca..bf3e8ce 100644 (file)
--- 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 3b8106a..0a688d8 100644 (file)
--- 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