6 files changed, 403 insertions, 0 deletions

diff --git a/drivers/net/ethernet/broadcom/bnge/bnge.h b/drivers/net/ethernet/broadcom/bnge/bnge.h
index 3c161b1a9b62..cef66c1e9006 100644
--- a/drivers/net/ethernet/broadcom/bnge/bnge.h
+++ b/drivers/net/ethernet/broadcom/bnge/bnge.h
@@ -80,6 +80,12 @@ enum {
 	BNGE_RSS_CAP_ESP_V6_RSS_CAP			= BIT(7),
 };
 
+#define BNGE_MAX_QUEUE		8
+struct bnge_queue_info {
+	u8      queue_id;
+	u8      queue_profile;
+};
+
 struct bnge_dev {
 	struct device	*dev;
 	struct pci_dev	*pdev;
@@ -89,6 +95,7 @@ struct bnge_dev {
 	char		board_serialno[BNGE_VPD_FLD_LEN];
 
 	void __iomem	*bar0;
+	void __iomem	*bar1;
 
 	u16		chip_num;
 	u8		chip_rev;
@@ -172,6 +179,13 @@ struct bnge_dev {
 #define BNGE_SUPPORTS_TPA(bd)	((bd)->max_tpa_v2)
 
 	u8                      num_tc;
+	u8			max_tc;
+	u8			max_lltc;	/* lossless TCs */
+	struct bnge_queue_info	q_info[BNGE_MAX_QUEUE];
+	u8			tc_to_qidx[BNGE_MAX_QUEUE];
+	u8			q_ids[BNGE_MAX_QUEUE];
+	u8			max_q;
+	u8			port_count;
 
 	struct bnge_irq		*irq_tbl;
 	u16			irqs_acquired;
diff --git a/drivers/net/ethernet/broadcom/bnge/bnge_core.c b/drivers/net/ethernet/broadcom/bnge/bnge_core.c
index f5c3e8a061e5..24babc8b9d35 100644
--- a/drivers/net/ethernet/broadcom/bnge/bnge_core.c
+++ b/drivers/net/ethernet/broadcom/bnge/bnge_core.c
@@ -54,9 +54,46 @@ static void bnge_nvm_cfg_ver_get(struct bnge_dev *bd)
 			 nvm_info.nvm_cfg_ver_upd);
 }
 
+static int bnge_func_qcaps(struct bnge_dev *bd)
+{
+	int rc;
+
+	rc = bnge_hwrm_func_qcaps(bd);
+	if (rc)
+		return rc;
+
+	rc = bnge_hwrm_queue_qportcfg(bd);
+	if (rc) {
+		dev_err(bd->dev, "query qportcfg failure rc: %d\n", rc);
+		return rc;
+	}
+
+	rc = bnge_hwrm_func_resc_qcaps(bd);
+	if (rc) {
+		dev_err(bd->dev, "query resc caps failure rc: %d\n", rc);
+		return rc;
+	}
+
+	rc = bnge_hwrm_func_qcfg(bd);
+	if (rc) {
+		dev_err(bd->dev, "query config failure rc: %d\n", rc);
+		return rc;
+	}
+
+	rc = bnge_hwrm_vnic_qcaps(bd);
+	if (rc) {
+		dev_err(bd->dev, "vnic caps failure rc: %d\n", rc);
+		return rc;
+	}
+
+	return 0;
+}
+
 static void bnge_fw_unregister_dev(struct bnge_dev *bd)
 {
+	/* ctx mem free after unrgtr only */
 	bnge_hwrm_func_drv_unrgtr(bd);
+	bnge_free_ctx_mem(bd);
 }
 
 static int bnge_fw_register_dev(struct bnge_dev *bd)
@@ -86,7 +123,25 @@ static int bnge_fw_register_dev(struct bnge_dev *bd)
 		return rc;
 	}
 
+	rc = bnge_alloc_ctx_mem(bd);
+	if (rc) {
+		dev_err(bd->dev, "Failed to allocate ctx mem rc: %d\n", rc);
+		goto err_func_unrgtr;
+	}
+
+	/* Get the resources and configuration from firmware */
+	rc = bnge_func_qcaps(bd);
+	if (rc) {
+		dev_err(bd->dev, "Failed initial configuration rc: %d\n", rc);
+		rc = -ENODEV;
+		goto err_func_unrgtr;
+	}
+
 	return 0;
+
+err_func_unrgtr:
+	bnge_fw_unregister_dev(bd);
+	return rc;
 }
 
 static void bnge_pci_disable(struct pci_dev *pdev)
@@ -134,14 +189,46 @@ static void bnge_unmap_bars(struct pci_dev *pdev)
 {
 	struct bnge_dev *bd = pci_get_drvdata(pdev);
 
+	if (bd->bar1) {
+		pci_iounmap(pdev, bd->bar1);
+		bd->bar1 = NULL;
+	}
+
 	if (bd->bar0) {
 		pci_iounmap(pdev, bd->bar0);
 		bd->bar0 = NULL;
 	}
 }
 
+static void bnge_set_max_func_irqs(struct bnge_dev *bd,
+				   unsigned int max_irqs)
+{
+	bd->hw_resc.max_irqs = max_irqs;
+}
+
+static int bnge_get_max_irq(struct pci_dev *pdev)
+{
+	u16 ctrl;
+
+	pci_read_config_word(pdev, pdev->msix_cap + PCI_MSIX_FLAGS, &ctrl);
+	return (ctrl & PCI_MSIX_FLAGS_QSIZE) + 1;
+}
+
+static int bnge_map_db_bar(struct bnge_dev *bd)
+{
+	if (!bd->db_size)
+		return -ENODEV;
+
+	bd->bar1 = pci_iomap(bd->pdev, 2, bd->db_size);
+	if (!bd->bar1)
+		return -ENOMEM;
+
+	return 0;
+}
+
 static int bnge_probe_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 {
+	unsigned int max_irqs;
 	struct bnge_dev *bd;
 	int rc;
 
@@ -190,10 +277,42 @@ static int bnge_probe_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	bnge_devlink_register(bd);
 
+	max_irqs = bnge_get_max_irq(pdev);
+	bnge_set_max_func_irqs(bd, max_irqs);
+
+	bnge_aux_init_dflt_config(bd);
+
+	rc = bnge_net_init_dflt_config(bd);
+	if (rc) {
+		dev_err(&pdev->dev, "Error setting up default cfg to netdev rc = %d\n",
+			rc);
+		goto err_fw_reg;
+	}
+
+	rc = bnge_map_db_bar(bd);
+	if (rc) {
+		dev_err(&pdev->dev, "Failed mapping doorbell BAR rc = %d, aborting\n",
+			rc);
+		goto err_config_uninit;
+	}
+
+	rc = bnge_alloc_irqs(bd);
+	if (rc) {
+		dev_err(&pdev->dev, "Error IRQ allocation rc = %d\n", rc);
+		goto err_config_uninit;
+	}
+
 	pci_save_state(pdev);
 
 	return 0;
 
+err_config_uninit:
+	bnge_net_uninit_dflt_config(bd);
+
+err_fw_reg:
+	bnge_devlink_unregister(bd);
+	bnge_fw_unregister_dev(bd);
+
 err_hwrm_cleanup:
 	bnge_cleanup_hwrm_resources(bd);
 
@@ -212,6 +331,10 @@ static void bnge_remove_one(struct pci_dev *pdev)
 {
 	struct bnge_dev *bd = pci_get_drvdata(pdev);
 
+	bnge_free_irqs(bd);
+
+	bnge_net_uninit_dflt_config(bd);
+
 	bnge_devlink_unregister(bd);
 
 	bnge_fw_unregister_dev(bd);
diff --git a/drivers/net/ethernet/broadcom/bnge/bnge_hwrm_lib.c b/drivers/net/ethernet/broadcom/bnge/bnge_hwrm_lib.c
index ee2675776c14..19091318cfdd 100644
--- a/drivers/net/ethernet/broadcom/bnge/bnge_hwrm_lib.c
+++ b/drivers/net/ethernet/broadcom/bnge/bnge_hwrm_lib.c
@@ -647,3 +647,57 @@ int bnge_hwrm_vnic_qcaps(struct bnge_dev *bd)
 
 	return rc;
 }
+
+#define BNGE_CNPQ(q_profile)	\
+		((q_profile) ==	\
+		 QUEUE_QPORTCFG_RESP_QUEUE_ID0_SERVICE_PROFILE_LOSSY_ROCE_CNP)
+
+int bnge_hwrm_queue_qportcfg(struct bnge_dev *bd)
+{
+	struct hwrm_queue_qportcfg_output *resp;
+	struct hwrm_queue_qportcfg_input *req;
+	u8 i, j, *qptr;
+	bool no_rdma;
+	int rc;
+
+	rc = bnge_hwrm_req_init(bd, req, HWRM_QUEUE_QPORTCFG);
+	if (rc)
+		return rc;
+
+	resp = bnge_hwrm_req_hold(bd, req);
+	rc = bnge_hwrm_req_send(bd, req);
+	if (rc)
+		goto qportcfg_exit;
+
+	if (!resp->max_configurable_queues) {
+		rc = -EINVAL;
+		goto qportcfg_exit;
+	}
+	bd->max_tc = resp->max_configurable_queues;
+	bd->max_lltc = resp->max_configurable_lossless_queues;
+	if (bd->max_tc > BNGE_MAX_QUEUE)
+		bd->max_tc = BNGE_MAX_QUEUE;
+
+	no_rdma = !bnge_is_roce_en(bd);
+	qptr = &resp->queue_id0;
+	for (i = 0, j = 0; i < bd->max_tc; i++) {
+		bd->q_info[j].queue_id = *qptr;
+		bd->q_ids[i] = *qptr++;
+		bd->q_info[j].queue_profile = *qptr++;
+		bd->tc_to_qidx[j] = j;
+		if (!BNGE_CNPQ(bd->q_info[j].queue_profile) || no_rdma)
+			j++;
+	}
+	bd->max_q = bd->max_tc;
+	bd->max_tc = max_t(u8, j, 1);
+
+	if (resp->queue_cfg_info & QUEUE_QPORTCFG_RESP_QUEUE_CFG_INFO_ASYM_CFG)
+		bd->max_tc = 1;
+
+	if (bd->max_lltc > bd->max_tc)
+		bd->max_lltc = bd->max_tc;
+
+qportcfg_exit:
+	bnge_hwrm_req_drop(bd, req);
+	return rc;
+}
diff --git a/drivers/net/ethernet/broadcom/bnge/bnge_hwrm_lib.h b/drivers/net/ethernet/broadcom/bnge/bnge_hwrm_lib.h
index 59ec1899879a..6c03923eb559 100644
--- a/drivers/net/ethernet/broadcom/bnge/bnge_hwrm_lib.h
+++ b/drivers/net/ethernet/broadcom/bnge/bnge_hwrm_lib.h
@@ -22,5 +22,6 @@ int bnge_hwrm_func_qcaps(struct bnge_dev *bd);
 int bnge_hwrm_vnic_qcaps(struct bnge_dev *bd);
 int bnge_hwrm_func_qcfg(struct bnge_dev *bd);
 int bnge_hwrm_func_resc_qcaps(struct bnge_dev *bd);
+int bnge_hwrm_queue_qportcfg(struct bnge_dev *bd);
 
 #endif /* _BNGE_HWRM_LIB_H_ */
diff --git a/drivers/net/ethernet/broadcom/bnge/bnge_resc.c b/drivers/net/ethernet/broadcom/bnge/bnge_resc.c
index 0e67a0001677..c79a3607a1b7 100644
--- a/drivers/net/ethernet/broadcom/bnge/bnge_resc.c
+++ b/drivers/net/ethernet/broadcom/bnge/bnge_resc.c
@@ -5,6 +5,7 @@
 #include <linux/module.h>
 #include <linux/pci.h>
 #include <linux/ethtool.h>
+#include <linux/netdevice.h>
 
 #include "bnge.h"
 #include "bnge_hwrm.h"
@@ -28,6 +29,16 @@ static u16 bnge_get_max_func_irqs(struct bnge_dev *bd)
 	return min_t(u16, hw_resc->max_irqs, hw_resc->max_nqs);
 }
 
+static unsigned int bnge_get_max_func_stat_ctxs(struct bnge_dev *bd)
+{
+	return bd->hw_resc.max_stat_ctxs;
+}
+
+static unsigned int bnge_get_max_func_cp_rings(struct bnge_dev *bd)
+{
+	return bd->hw_resc.max_cp_rings;
+}
+
 static int bnge_aux_get_dflt_msix(struct bnge_dev *bd)
 {
 	int roce_msix = BNGE_MAX_ROCE_MSIX;
@@ -68,6 +79,20 @@ static u16 bnge_func_stat_ctxs_demand(struct bnge_dev *bd)
 	return bd->nq_nr_rings + bnge_aux_get_stat_ctxs(bd);
 }
 
+static int bnge_get_dflt_aux_stat_ctxs(struct bnge_dev *bd)
+{
+	int stat_ctx = 0;
+
+	if (bnge_is_roce_en(bd)) {
+		stat_ctx = BNGE_MIN_ROCE_STAT_CTXS;
+
+		if (!bd->pf.port_id && bd->port_count > 1)
+			stat_ctx++;
+	}
+
+	return stat_ctx;
+}
+
 static u16 bnge_nqs_demand(struct bnge_dev *bd)
 {
 	return bd->nq_nr_rings + bnge_aux_get_msix(bd);
@@ -395,3 +420,186 @@ void bnge_free_irqs(struct bnge_dev *bd)
 	kfree(bd->irq_tbl);
 	bd->irq_tbl = NULL;
 }
+
+static void _bnge_get_max_rings(struct bnge_dev *bd, u16 *max_rx,
+				u16 *max_tx, u16 *max_nq)
+{
+	struct bnge_hw_resc *hw_resc = &bd->hw_resc;
+	u16 max_ring_grps = 0, max_cp;
+	int rc;
+
+	*max_tx = hw_resc->max_tx_rings;
+	*max_rx = hw_resc->max_rx_rings;
+	*max_nq = min_t(int, bnge_get_max_func_irqs(bd),
+			hw_resc->max_stat_ctxs);
+	max_ring_grps = hw_resc->max_hw_ring_grps;
+	if (bnge_is_agg_reqd(bd))
+		*max_rx >>= 1;
+
+	max_cp = bnge_get_max_func_cp_rings(bd);
+
+	/* Fix RX and TX rings according to number of CPs available */
+	rc = bnge_fix_rings_count(max_rx, max_tx, max_cp, false);
+	if (rc) {
+		*max_rx = 0;
+		*max_tx = 0;
+	}
+
+	*max_rx = min_t(int, *max_rx, max_ring_grps);
+}
+
+static int bnge_get_max_rings(struct bnge_dev *bd, u16 *max_rx,
+			      u16 *max_tx, bool shared)
+{
+	u16 rx, tx, nq;
+
+	_bnge_get_max_rings(bd, &rx, &tx, &nq);
+	*max_rx = rx;
+	*max_tx = tx;
+	if (!rx || !tx || !nq)
+		return -ENOMEM;
+
+	return bnge_fix_rings_count(max_rx, max_tx, nq, shared);
+}
+
+static int bnge_get_dflt_rings(struct bnge_dev *bd, u16 *max_rx, u16 *max_tx,
+			       bool shared)
+{
+	int rc;
+
+	rc = bnge_get_max_rings(bd, max_rx, max_tx, shared);
+	if (rc) {
+		dev_info(bd->dev, "Not enough rings available\n");
+		return rc;
+	}
+
+	if (bnge_is_roce_en(bd)) {
+		int max_cp, max_stat, max_irq;
+
+		/* Reserve minimum resources for RoCE */
+		max_cp = bnge_get_max_func_cp_rings(bd);
+		max_stat = bnge_get_max_func_stat_ctxs(bd);
+		max_irq = bnge_get_max_func_irqs(bd);
+		if (max_cp <= BNGE_MIN_ROCE_CP_RINGS ||
+		    max_irq <= BNGE_MIN_ROCE_CP_RINGS ||
+		    max_stat <= BNGE_MIN_ROCE_STAT_CTXS)
+			return 0;
+
+		max_cp -= BNGE_MIN_ROCE_CP_RINGS;
+		max_irq -= BNGE_MIN_ROCE_CP_RINGS;
+		max_stat -= BNGE_MIN_ROCE_STAT_CTXS;
+		max_cp = min_t(u16, max_cp, max_irq);
+		max_cp = min_t(u16, max_cp, max_stat);
+		rc = bnge_adjust_rings(bd, max_rx, max_tx, max_cp, shared);
+		if (rc)
+			rc = 0;
+	}
+
+	return rc;
+}
+
+/* In initial default shared ring setting, each shared ring must have a
+ * RX/TX ring pair.
+ */
+static void bnge_trim_dflt_sh_rings(struct bnge_dev *bd)
+{
+	bd->nq_nr_rings = min_t(u16, bd->tx_nr_rings_per_tc, bd->rx_nr_rings);
+	bd->rx_nr_rings = bd->nq_nr_rings;
+	bd->tx_nr_rings_per_tc = bd->nq_nr_rings;
+	bd->tx_nr_rings = bd->tx_nr_rings_per_tc;
+}
+
+static int bnge_net_init_dflt_rings(struct bnge_dev *bd, bool sh)
+{
+	u16 dflt_rings, max_rx_rings, max_tx_rings;
+	int rc;
+
+	if (sh)
+		bd->flags |= BNGE_EN_SHARED_CHNL;
+
+	dflt_rings = netif_get_num_default_rss_queues();
+
+	rc = bnge_get_dflt_rings(bd, &max_rx_rings, &max_tx_rings, sh);
+	if (rc)
+		return rc;
+	bd->rx_nr_rings = min_t(u16, dflt_rings, max_rx_rings);
+	bd->tx_nr_rings_per_tc = min_t(u16, dflt_rings, max_tx_rings);
+	if (sh)
+		bnge_trim_dflt_sh_rings(bd);
+	else
+		bd->nq_nr_rings = bd->tx_nr_rings_per_tc + bd->rx_nr_rings;
+	bd->tx_nr_rings = bd->tx_nr_rings_per_tc;
+
+	rc = bnge_reserve_rings(bd);
+	if (rc && rc != -ENODEV)
+		dev_warn(bd->dev, "Unable to reserve tx rings\n");
+	bd->tx_nr_rings_per_tc = bd->tx_nr_rings;
+	if (sh)
+		bnge_trim_dflt_sh_rings(bd);
+
+	/* Rings may have been reduced, re-reserve them again */
+	if (bnge_need_reserve_rings(bd)) {
+		rc = bnge_reserve_rings(bd);
+		if (rc && rc != -ENODEV)
+			dev_warn(bd->dev, "Fewer rings reservation failed\n");
+		bd->tx_nr_rings_per_tc = bd->tx_nr_rings;
+	}
+	if (rc) {
+		bd->tx_nr_rings = 0;
+		bd->rx_nr_rings = 0;
+	}
+
+	return rc;
+}
+
+static int bnge_alloc_rss_indir_tbl(struct bnge_dev *bd)
+{
+	u16 entries;
+
+	entries = BNGE_MAX_RSS_TABLE_ENTRIES;
+
+	bd->rss_indir_tbl_entries = entries;
+	bd->rss_indir_tbl =
+		kmalloc_array(entries, sizeof(*bd->rss_indir_tbl), GFP_KERNEL);
+	if (!bd->rss_indir_tbl)
+		return -ENOMEM;
+
+	return 0;
+}
+
+int bnge_net_init_dflt_config(struct bnge_dev *bd)
+{
+	struct bnge_hw_resc *hw_resc;
+	int rc;
+
+	rc = bnge_alloc_rss_indir_tbl(bd);
+	if (rc)
+		return rc;
+
+	rc = bnge_net_init_dflt_rings(bd, true);
+	if (rc)
+		goto err_free_tbl;
+
+	hw_resc = &bd->hw_resc;
+	bd->max_fltr = hw_resc->max_rx_em_flows + hw_resc->max_rx_wm_flows +
+		       BNGE_L2_FLTR_MAX_FLTR;
+
+	return 0;
+
+err_free_tbl:
+	kfree(bd->rss_indir_tbl);
+	bd->rss_indir_tbl = NULL;
+	return rc;
+}
+
+void bnge_net_uninit_dflt_config(struct bnge_dev *bd)
+{
+	kfree(bd->rss_indir_tbl);
+	bd->rss_indir_tbl = NULL;
+}
+
+void bnge_aux_init_dflt_config(struct bnge_dev *bd)
+{
+	bd->aux_num_msix = bnge_aux_get_dflt_msix(bd);
+	bd->aux_num_stat_ctxs = bnge_get_dflt_aux_stat_ctxs(bd);
+}
diff --git a/drivers/net/ethernet/broadcom/bnge/bnge_resc.h b/drivers/net/ethernet/broadcom/bnge/bnge_resc.h
index 23db93e03787..b39fd1a7a81b 100644
--- a/drivers/net/ethernet/broadcom/bnge/bnge_resc.h
+++ b/drivers/net/ethernet/broadcom/bnge/bnge_resc.h
@@ -66,6 +66,9 @@ int bnge_reserve_rings(struct bnge_dev *bd);
 int bnge_fix_rings_count(u16 *rx, u16 *tx, u16 max, bool shared);
 int bnge_alloc_irqs(struct bnge_dev *bd);
 void bnge_free_irqs(struct bnge_dev *bd);
+int bnge_net_init_dflt_config(struct bnge_dev *bd);
+void bnge_net_uninit_dflt_config(struct bnge_dev *bd);
+void bnge_aux_init_dflt_config(struct bnge_dev *bd);
 
 static inline u32
 bnge_adjust_pow_two(u32 total_ent, u16 ent_per_blk)