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path: root/drivers/net/ethernet/marvell/octeontx2/af/rvu_sdp.c
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Diffstat (limited to 'drivers/net/ethernet/marvell/octeontx2/af/rvu_sdp.c')
-rw-r--r--drivers/net/ethernet/marvell/octeontx2/af/rvu_sdp.c111
1 files changed, 111 insertions, 0 deletions
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_sdp.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_sdp.c
new file mode 100644
index 000000000..ae50d5625
--- /dev/null
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_sdp.c
@@ -0,0 +1,111 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Marvell RVU Admin Function driver
+ *
+ * Copyright (C) 2021 Marvell.
+ *
+ */
+
+#include <linux/pci.h>
+#include "rvu.h"
+
+/* SDP PF device id */
+#define PCI_DEVID_OTX2_SDP_PF 0xA0F6
+
+/* Maximum SDP blocks in a chip */
+#define MAX_SDP 2
+
+/* SDP PF number */
+static int sdp_pf_num[MAX_SDP] = {-1, -1};
+
+bool is_sdp_pfvf(u16 pcifunc)
+{
+ u16 pf = rvu_get_pf(pcifunc);
+ u32 found = 0, i = 0;
+
+ while (i < MAX_SDP) {
+ if (pf == sdp_pf_num[i])
+ found = 1;
+ i++;
+ }
+
+ if (!found)
+ return false;
+
+ return true;
+}
+
+bool is_sdp_pf(u16 pcifunc)
+{
+ return (is_sdp_pfvf(pcifunc) &&
+ !(pcifunc & RVU_PFVF_FUNC_MASK));
+}
+
+bool is_sdp_vf(u16 pcifunc)
+{
+ return (is_sdp_pfvf(pcifunc) &&
+ !!(pcifunc & RVU_PFVF_FUNC_MASK));
+}
+
+int rvu_sdp_init(struct rvu *rvu)
+{
+ struct pci_dev *pdev = NULL;
+ struct rvu_pfvf *pfvf;
+ u32 i = 0;
+
+ while ((i < MAX_SDP) && (pdev = pci_get_device(PCI_VENDOR_ID_CAVIUM,
+ PCI_DEVID_OTX2_SDP_PF,
+ pdev)) != NULL) {
+ /* The RVU PF number is one less than bus number */
+ sdp_pf_num[i] = pdev->bus->number - 1;
+ pfvf = &rvu->pf[sdp_pf_num[i]];
+
+ pfvf->sdp_info = devm_kzalloc(rvu->dev,
+ sizeof(struct sdp_node_info),
+ GFP_KERNEL);
+ if (!pfvf->sdp_info) {
+ pci_dev_put(pdev);
+ return -ENOMEM;
+ }
+
+ dev_info(rvu->dev, "SDP PF number:%d\n", sdp_pf_num[i]);
+
+ i++;
+ }
+
+ pci_dev_put(pdev);
+
+ return 0;
+}
+
+int
+rvu_mbox_handler_set_sdp_chan_info(struct rvu *rvu,
+ struct sdp_chan_info_msg *req,
+ struct msg_rsp *rsp)
+{
+ struct rvu_pfvf *pfvf = rvu_get_pfvf(rvu, req->hdr.pcifunc);
+
+ memcpy(pfvf->sdp_info, &req->info, sizeof(struct sdp_node_info));
+ dev_info(rvu->dev, "AF: SDP%d max_vfs %d num_pf_rings %d pf_srn %d\n",
+ req->info.node_id, req->info.max_vfs, req->info.num_pf_rings,
+ req->info.pf_srn);
+ return 0;
+}
+
+int
+rvu_mbox_handler_get_sdp_chan_info(struct rvu *rvu, struct msg_req *req,
+ struct sdp_get_chan_info_msg *rsp)
+{
+ struct rvu_hwinfo *hw = rvu->hw;
+ int blkaddr;
+
+ if (!hw->cap.programmable_chans) {
+ rsp->chan_base = NIX_CHAN_SDP_CH_START;
+ rsp->num_chan = NIX_CHAN_SDP_NUM_CHANS;
+ } else {
+ blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, 0);
+ rsp->chan_base = hw->sdp_chan_base;
+ rsp->num_chan = rvu_read64(rvu, blkaddr, NIX_AF_CONST1) & 0xFFFUL;
+ }
+
+ return 0;
+}