diff --git a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
index 0707a5aa6b1f28f6a31abeb903034dc0f136367b..f8c332b1acec01c5a841a02fab6a8ea03348733f 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
@@ -204,6 +204,9 @@ M(NIX_MARK_FORMAT_CFG, 0x800f, nix_mark_format_cfg, \
nix_mark_format_cfg, \
nix_mark_format_cfg_rsp) \
M(NIX_SET_RX_CFG, 0x8010, nix_set_rx_cfg, nix_rx_cfg, msg_rsp) \
+M(NIX_LSO_FORMAT_CFG, 0x8011, nix_lso_format_cfg, \
+ nix_lso_format_cfg, \
+ nix_lso_format_cfg_rsp) \
M(NIX_RXVLAN_ALLOC, 0x8012, nix_rxvlan_alloc, msg_req, msg_rsp)
/* Messages initiated by AF (range 0xC00 - 0xDFF) */
@@ -421,6 +424,7 @@ enum nix_af_status {
NIX_AF_ERR_RSS_NOSPC_FIELD = -415,
NIX_AF_ERR_RSS_NOSPC_ALGO = -416,
NIX_AF_ERR_MARK_CFG_FAIL = -417,
+ NIX_AF_ERR_LSO_CFG_FAIL = -418,
NIX_AF_INVAL_NPA_PF_FUNC = -419,
NIX_AF_INVAL_SSO_PF_FUNC = -420,
};
@@ -628,6 +632,18 @@ struct nix_frs_cfg {
u16 minlen;
};
+struct nix_lso_format_cfg {
+ struct mbox_msghdr hdr;
+ u64 field_mask;
+#define NIX_LSO_FIELD_MAX 8
+ u64 fields[NIX_LSO_FIELD_MAX];
+};
+
+struct nix_lso_format_cfg_rsp {
+ struct mbox_msghdr hdr;
+ u8 lso_format_idx;
+};
+
/* NPC mbox message structs */
#define NPC_MCAM_ENTRY_INVALID 0xFFFF
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
index c6d61a3a57299f3600d473540eadda7b743fe6a7..3abdb98fb3481dd034023132edf6c8573de7d635 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
@@ -180,11 +180,17 @@ struct nix_flowkey {
int in_use;
};
+struct nix_lso {
+ u8 total;
+ u8 in_use;
+};
+
struct nix_hw {
struct nix_txsch txsch[NIX_TXSCH_LVL_CNT]; /* Tx schedulers */
struct nix_mcast mcast;
struct nix_flowkey flowkey;
struct nix_mark_format mark_format;
+ struct nix_lso lso;
};
struct rvu_hwinfo {
@@ -435,7 +441,9 @@ int rvu_mbox_handler_nix_mark_format_cfg(struct rvu *rvu,
struct nix_mark_format_cfg_rsp *rsp);
int rvu_mbox_handler_nix_set_rx_cfg(struct rvu *rvu, struct nix_rx_cfg *req,
struct msg_rsp *rsp);
-
+int rvu_mbox_handler_nix_lso_format_cfg(struct rvu *rvu,
+ struct nix_lso_format_cfg *req,
+ struct nix_lso_format_cfg_rsp *rsp);
/* NPC APIs */
int rvu_npc_init(struct rvu *rvu);
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
index f1bd9de54cb7caf42befae7e9e344b7abf1209c7..4a7609fd6dd07bba4180f5b39d860ad717cc215b 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
@@ -298,17 +298,21 @@ static void nix_setup_lso_tso_l4(struct rvu *rvu, int blkaddr,
/* TCP's flags field */
field.layer = NIX_TXLAYER_OL4;
field.offset = 12;
- field.sizem1 = 0; /* not needed */
+ field.sizem1 = 1; /* 2 bytes */
field.alg = NIX_LSOALG_TCP_FLAGS;
rvu_write64(rvu, blkaddr,
NIX_AF_LSO_FORMATX_FIELDX(format, (*fidx)++),
*(u64 *)&field);
}
-static void nix_setup_lso(struct rvu *rvu, int blkaddr)
+static void nix_setup_lso(struct rvu *rvu, struct nix_hw *nix_hw, int blkaddr)
{
u64 cfg, idx, fidx = 0;
+ /* Get max HW supported format indices */
+ cfg = (rvu_read64(rvu, blkaddr, NIX_AF_CONST1) >> 48) & 0xFF;
+ nix_hw->lso.total = cfg;
+
/* Enable LSO */
cfg = rvu_read64(rvu, blkaddr, NIX_AF_LSO_CFG);
/* For TSO, set first and middle segment flags to
@@ -318,7 +322,10 @@ static void nix_setup_lso(struct rvu *rvu, int blkaddr)
cfg |= (0xFFF2ULL << 32) | (0xFFF2ULL << 16);
rvu_write64(rvu, blkaddr, NIX_AF_LSO_CFG, cfg | BIT_ULL(63));
- /* Configure format fields for TCPv4 segmentation offload */
+ /* Setup default static LSO formats
+ *
+ * Configure format fields for TCPv4 segmentation offload
+ */
idx = NIX_LSO_FORMAT_IDX_TSOV4;
nix_setup_lso_tso_l3(rvu, blkaddr, idx, true, &fidx);
nix_setup_lso_tso_l4(rvu, blkaddr, idx, &fidx);
@@ -328,6 +335,7 @@ static void nix_setup_lso(struct rvu *rvu, int blkaddr)
rvu_write64(rvu, blkaddr,
NIX_AF_LSO_FORMATX_FIELDX(idx, fidx), 0x0ULL);
}
+ nix_hw->lso.in_use++;
/* Configure format fields for TCPv6 segmentation offload */
idx = NIX_LSO_FORMAT_IDX_TSOV6;
@@ -340,6 +348,7 @@ static void nix_setup_lso(struct rvu *rvu, int blkaddr)
rvu_write64(rvu, blkaddr,
NIX_AF_LSO_FORMATX_FIELDX(idx, fidx), 0x0ULL);
}
+ nix_hw->lso.in_use++;
}
static void nix_ctx_free(struct rvu *rvu, struct rvu_pfvf *pfvf)
@@ -2724,9 +2733,6 @@ int rvu_nix_init(struct rvu *rvu)
/* Restore CINT timer delay to HW reset values */
rvu_write64(rvu, blkaddr, NIX_AF_CINT_DELAY, 0x0ULL);
- /* Configure segmentation offload formats */
- nix_setup_lso(rvu, blkaddr);
-
if (blkaddr == BLKADDR_NIX0) {
hw->nix0 = devm_kzalloc(rvu->dev,
sizeof(struct nix_hw), GFP_KERNEL);
@@ -2745,6 +2751,9 @@ int rvu_nix_init(struct rvu *rvu)
if (err)
return err;
+ /* Configure segmentation offload formats */
+ nix_setup_lso(rvu, hw->nix0, blkaddr);
+
/* Config Outer/Inner L2, IP, TCP, UDP and SCTP NPC layer info.
* This helps HW protocol checker to identify headers
* and validate length and checksums.
@@ -2897,3 +2906,54 @@ void rvu_nix_lf_teardown(struct rvu *rvu, u16 pcifunc, int blkaddr, int nixlf)
nix_ctx_free(rvu, pfvf);
}
+
+int rvu_mbox_handler_nix_lso_format_cfg(struct rvu *rvu,
+ struct nix_lso_format_cfg *req,
+ struct nix_lso_format_cfg_rsp *rsp)
+{
+ u16 pcifunc = req->hdr.pcifunc;
+ struct nix_hw *nix_hw;
+ struct rvu_pfvf *pfvf;
+ int blkaddr, idx, f;
+ u64 reg;
+
+ pfvf = rvu_get_pfvf(rvu, pcifunc);
+ blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, pcifunc);
+ if (!pfvf->nixlf || blkaddr < 0)
+ return NIX_AF_ERR_AF_LF_INVALID;
+
+ nix_hw = get_nix_hw(rvu->hw, blkaddr);
+ if (!nix_hw)
+ return -EINVAL;
+
+ /* Find existing matching LSO format, if any */
+ for (idx = 0; idx < nix_hw->lso.in_use; idx++) {
+ for (f = 0; f < NIX_LSO_FIELD_MAX; f++) {
+ reg = rvu_read64(rvu, blkaddr,
+ NIX_AF_LSO_FORMATX_FIELDX(idx, f));
+ if (req->fields[f] != (reg & req->field_mask))
+ break;
+ }
+
+ if (f == NIX_LSO_FIELD_MAX)
+ break;
+ }
+
+ if (idx < nix_hw->lso.in_use) {
+ /* Match found */
+ rsp->lso_format_idx = idx;
+ return 0;
+ }
+
+ if (nix_hw->lso.in_use == nix_hw->lso.total)
+ return NIX_AF_ERR_LSO_CFG_FAIL;
+
+ rsp->lso_format_idx = nix_hw->lso.in_use++;
+
+ for (f = 0; f < NIX_LSO_FIELD_MAX; f++)
+ rvu_write64(rvu, blkaddr,
+ NIX_AF_LSO_FORMATX_FIELDX(rsp->lso_format_idx, f),
+ req->fields[f]);
+
+ return 0;
+}