[net-next,v3,3/6] octeontx2-af: CN20k mbox to support AF REQ/ACK functionality

Message ID	20241112185326.819546-4-saikrishnag@marvell.com (mailing list archive)
State	Superseded
Delegated to:	Netdev Maintainers
Headers	show Received: from mx0b-0016f401.pphosted.com (mx0b-0016f401.pphosted.com [67.231.156.173]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5EB28218D72; Tue, 12 Nov 2024 18:58:07 +0000 (UTC) From: Sai Krishna <saikrishnag@marvell.com> To: <davem@davemloft.net>, <edumazet@google.com>, <kuba@kernel.org>, <pabeni@redhat.com>, <netdev@vger.kernel.org>, <linux-kernel@vger.kernel.org>, <sgoutham@marvell.com>, <gakula@marvell.com>, <lcherian@marvell.com>, <jerinj@marvell.com>, <hkelam@marvell.com>, <sbhatta@marvell.com>, <andrew+netdev@lunn.ch>, <kalesh-anakkur.purayil@broadcom.com> CC: Sai Krishna <saikrishnag@marvell.com> Subject: [net-next PATCH v3 3/6] octeontx2-af: CN20k mbox to support AF REQ/ACK functionality Date: Wed, 13 Nov 2024 00:23:23 +0530 Message-ID: <20241112185326.819546-4-saikrishnag@marvell.com> In-Reply-To: <20241112185326.819546-1-saikrishnag@marvell.com> References: <20241112185326.819546-1-saikrishnag@marvell.com> Precedence: bulk MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain
Series	CN20K silicon with mbox support \| expand [net-next,v3,0/6] CN20K silicon with mbox support [net-next,v3,1/6] octeontx2: Set appropriate PF, VF masks and shifts based on silicon [net-next,v3,2/6] octeontx2-af: CN20k basic mbox operations and structures [net-next,v3,3/6] octeontx2-af: CN20k mbox to support AF REQ/ACK functionality [net-next,v3,4/6] octeontx2-pf: CN20K mbox REQ/ACK implementation for NIC PF [net-next,v3,5/6] octeontx2-af: CN20K mbox implementation for AF's VF [net-next,v3,6/6] octeontx2-pf: CN20K mbox implementation between PF-VF

Context	Check	Description
netdev/series_format	success	Posting correctly formatted
netdev/tree_selection	success	Clearly marked for net-next
netdev/ynl	success	Generated files up to date; no warnings/errors; no diff in generated;
netdev/fixes_present	success	Fixes tag not required for -next series
netdev/header_inline	success	No static functions without inline keyword in header files
netdev/build_32bit	success	Errors and warnings before: 3 this patch: 3
netdev/build_tools	success	No tools touched, skip
netdev/cc_maintainers	success	CCed 12 of 12 maintainers
netdev/build_clang	success	Errors and warnings before: 4 this patch: 4
netdev/verify_signedoff	success	Signed-off-by tag matches author and committer
netdev/deprecated_api	success	None detected
netdev/check_selftest	success	No net selftest shell script
netdev/verify_fixes	success	No Fixes tag
netdev/build_allmodconfig_warn	success	Errors and warnings before: 24 this patch: 10
netdev/checkpatch	warning	WARNING: added, moved or deleted file(s), does MAINTAINERS need updating? WARNING: line length of 88 exceeds 80 columns WARNING: line length of 98 exceeds 80 columns
netdev/build_clang_rust	success	No Rust files in patch. Skipping build
netdev/kdoc	success	Errors and warnings before: 0 this patch: 0
netdev/source_inline	success	Was 0 now: 0
netdev/contest	success	net-next-2024-11-13--03-00 (tests: 786)

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/cn20k/api.h b/drivers/net/ethernet/marvell/octeontx2/af/cn20k/api.h index b57bd38181aa..9436a4a4d815 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/cn20k/api.h +++ b/drivers/net/ethernet/marvell/octeontx2/af/cn20k/api.h @@ -15,8 +15,16 @@ struct ng_rvu { struct qmem *pf_mbox_addr; }; +struct rvu; + /* Mbox related APIs */ int cn20k_rvu_mbox_init(struct rvu *rvu, int type, int num); +int cn20k_register_afpf_mbox_intr(struct rvu *rvu); int cn20k_rvu_get_mbox_regions(struct rvu *rvu, void **mbox_addr, int num, int type, unsigned long *pf_bmap); +void cn20k_rvu_enable_mbox_intr(struct rvu *rvu); +void cn20k_rvu_unregister_interrupts(struct rvu *rvu); +void cn20k_free_mbox_memory(struct rvu *rvu); +int cn20k_mbox_setup(struct otx2_mbox *mbox, struct pci_dev *pdev, + void *reg_base, int direction, int ndevs); #endif /* CN20K_API_H */ diff --git a/drivers/net/ethernet/marvell/octeontx2/af/cn20k/mbox_init.c b/drivers/net/ethernet/marvell/octeontx2/af/cn20k/mbox_init.c index 0e128013a03f..377e3f579184 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/cn20k/mbox_init.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/cn20k/mbox_init.c @@ -13,6 +13,137 @@ #include "reg.h" #include "api.h" +/* CN20K mbox PFx => AF irq handler */ +static irqreturn_t cn20k_mbox_pf_common_intr_handler(int irq, void *rvu_irq) +{ + struct rvu_irq_data *rvu_irq_data = rvu_irq; + struct rvu *rvu = rvu_irq_data->rvu; + u64 intr; + + /* Clear interrupts */ + intr = rvu_read64(rvu, BLKADDR_RVUM, rvu_irq_data->intr_status); + rvu_write64(rvu, BLKADDR_RVUM, rvu_irq_data->intr_status, intr); + + if (intr) + trace_otx2_msg_interrupt(rvu->pdev, "PF(s) to AF", intr); + + /* Sync with mbox memory region */ + rmb(); + + rvu_irq_data->rvu_queue_work_hdlr(&rvu->afpf_wq_info, + rvu_irq_data->start, + rvu_irq_data->mdevs, intr); + + return IRQ_HANDLED; +} + +void cn20k_rvu_enable_mbox_intr(struct rvu *rvu) +{ + struct rvu_hwinfo *hw = rvu->hw; + + /* Clear spurious irqs, if any */ + rvu_write64(rvu, BLKADDR_RVUM, + RVU_MBOX_AF_PFAF_INT(0), INTR_MASK(hw->total_pfs)); + + rvu_write64(rvu, BLKADDR_RVUM, + RVU_MBOX_AF_PFAF_INT(1), INTR_MASK(hw->total_pfs - 64)); + + rvu_write64(rvu, BLKADDR_RVUM, + RVU_MBOX_AF_PFAF1_INT(0), INTR_MASK(hw->total_pfs)); + + rvu_write64(rvu, BLKADDR_RVUM, + RVU_MBOX_AF_PFAF1_INT(1), INTR_MASK(hw->total_pfs - 64)); + + /* Enable mailbox interrupt for all PFs except PF0 i.e AF itself */ + rvu_write64(rvu, BLKADDR_RVUM, RVU_MBOX_AF_PFAF_INT_ENA_W1S(0), + INTR_MASK(hw->total_pfs) & ~1ULL); + + rvu_write64(rvu, BLKADDR_RVUM, RVU_MBOX_AF_PFAF_INT_ENA_W1S(1), + INTR_MASK(hw->total_pfs - 64)); + + rvu_write64(rvu, BLKADDR_RVUM, RVU_MBOX_AF_PFAF1_INT_ENA_W1S(0), + INTR_MASK(hw->total_pfs) & ~1ULL); + + rvu_write64(rvu, BLKADDR_RVUM, RVU_MBOX_AF_PFAF1_INT_ENA_W1S(1), + INTR_MASK(hw->total_pfs - 64)); +} + +void cn20k_rvu_unregister_interrupts(struct rvu *rvu) +{ + rvu_write64(rvu, BLKADDR_RVUM, RVU_MBOX_AF_PFAF_INT_ENA_W1C(0), + INTR_MASK(rvu->hw->total_pfs) & ~1ULL); + + rvu_write64(rvu, BLKADDR_RVUM, RVU_MBOX_AF_PFAF_INT_ENA_W1C(1), + INTR_MASK(rvu->hw->total_pfs - 64)); + + rvu_write64(rvu, BLKADDR_RVUM, RVU_MBOX_AF_PFAF1_INT_ENA_W1C(0), + INTR_MASK(rvu->hw->total_pfs) & ~1ULL); + + rvu_write64(rvu, BLKADDR_RVUM, RVU_MBOX_AF_PFAF1_INT_ENA_W1C(1), + INTR_MASK(rvu->hw->total_pfs - 64)); +} + +int cn20k_register_afpf_mbox_intr(struct rvu *rvu) +{ + struct rvu_irq_data *irq_data; + int intr_vec, ret, vec = 0; + + /* irq data for 4 PF intr vectors */ + irq_data = devm_kcalloc(rvu->dev, 4, + sizeof(struct rvu_irq_data), GFP_KERNEL); + if (!irq_data) + return -ENOMEM; + + for (intr_vec = RVU_AF_CN20K_INT_VEC_PFAF_MBOX0; intr_vec <= + RVU_AF_CN20K_INT_VEC_PFAF1_MBOX1; intr_vec++, + vec++) { + switch (intr_vec) { + case RVU_AF_CN20K_INT_VEC_PFAF_MBOX0: + irq_data[vec].intr_status = + RVU_MBOX_AF_PFAF_INT(0); + irq_data[vec].start = 0; + irq_data[vec].mdevs = 64; + break; + case RVU_AF_CN20K_INT_VEC_PFAF_MBOX1: + irq_data[vec].intr_status = + RVU_MBOX_AF_PFAF_INT(1); + irq_data[vec].start = 64; + irq_data[vec].mdevs = 96; + break; + case RVU_AF_CN20K_INT_VEC_PFAF1_MBOX0: + irq_data[vec].intr_status = + RVU_MBOX_AF_PFAF1_INT(0); + irq_data[vec].start = 0; + irq_data[vec].mdevs = 64; + break; + case RVU_AF_CN20K_INT_VEC_PFAF1_MBOX1: + irq_data[vec].intr_status = + RVU_MBOX_AF_PFAF1_INT(1); + irq_data[vec].start = 64; + irq_data[vec].mdevs = 96; + break; + } + irq_data[vec].rvu_queue_work_hdlr = rvu_queue_work; + irq_data[vec].vec_num = intr_vec; + irq_data[vec].rvu = rvu; + + /* Register mailbox interrupt handler */ + sprintf(&rvu->irq_name[intr_vec * NAME_SIZE], + "RVUAF PFAF%d Mbox%d", + vec / 2, vec % 2); + ret = request_irq(pci_irq_vector(rvu->pdev, intr_vec), + rvu->ng_rvu->rvu_mbox_ops->pf_intr_handler, 0, + &rvu->irq_name[intr_vec * NAME_SIZE], + &irq_data[vec]); + if (ret) + return ret; + + rvu->irq_allocated[intr_vec] = true; + } + + return 0; +} + int cn20k_rvu_get_mbox_regions(struct rvu *rvu, void **mbox_addr, int num, int type, unsigned long *pf_bmap) { @@ -34,6 +165,48 @@ int cn20k_rvu_get_mbox_regions(struct rvu *rvu, void **mbox_addr, return 0; } +static struct mbox_ops cn20k_mbox_ops = { + .pf_intr_handler = cn20k_mbox_pf_common_intr_handler, +}; + +static int rvu_alloc_mbox_memory(struct rvu *rvu, int type, + int ndevs, int mbox_size) +{ + struct qmem *mbox_addr; + dma_addr_t iova; + int pf, err; + + /* Allocate contiguous memory for mailbox communication. + * eg: AF <=> PFx mbox memory + * This allocated memory is split into chunks of MBOX_SIZE + * and setup into each of the RVU PFs. In HW this memory will + * get aliased to an offset within BAR2 of those PFs. + * + * AF will access mbox memory using direct physical addresses + * and PFs will access the same shared memory from BAR2. + */ + + err = qmem_alloc(rvu->dev, &mbox_addr, ndevs, mbox_size); + if (err) + return -ENOMEM; + + switch (type) { + case TYPE_AFPF: + rvu->ng_rvu->pf_mbox_addr = mbox_addr; + iova = (u64)mbox_addr->iova; + for (pf = 0; pf < ndevs; pf++) { + rvu_write64(rvu, BLKADDR_RVUM, RVU_MBOX_AF_PFX_ADDR(pf), + (u64)iova); + iova += mbox_size; + } + break; + default: + return 0; + } + + return 0; +} + int cn20k_rvu_mbox_init(struct rvu *rvu, int type, int ndevs) { int dev; @@ -41,9 +214,48 @@ int cn20k_rvu_mbox_init(struct rvu *rvu, int type, int ndevs) if (!is_cn20k(rvu->pdev)) return 0; + rvu->ng_rvu->rvu_mbox_ops = &cn20k_mbox_ops; + for (dev = 0; dev < ndevs; dev++) rvu_write64(rvu, BLKADDR_RVUM, RVU_MBOX_AF_PFX_CFG(dev), ilog2(MBOX_SIZE)); + return rvu_alloc_mbox_memory(rvu, type, ndevs, MBOX_SIZE); +} + +void cn20k_free_mbox_memory(struct rvu *rvu) +{ + qmem_free(rvu->dev, rvu->ng_rvu->pf_mbox_addr); +} + +int rvu_alloc_cint_qint_mem(struct rvu *rvu, struct rvu_pfvf *pfvf, + int blkaddr, int nixlf) +{ + int qints, hwctx_size, err; + u64 cfg, ctx_cfg; + + ctx_cfg = rvu_read64(rvu, blkaddr, NIX_AF_CONST3); + /* Alloc memory for CQINT's HW contexts */ + cfg = rvu_read64(rvu, blkaddr, NIX_AF_CONST2); + qints = (cfg >> 24) & 0xFFF; + hwctx_size = 1UL << ((ctx_cfg >> 24) & 0xF); + err = qmem_alloc(rvu->dev, &pfvf->cq_ints_ctx, qints, hwctx_size); + if (err) + return -ENOMEM; + + rvu_write64(rvu, blkaddr, NIX_AF_LFX_CINTS_BASE(nixlf), + (u64)pfvf->cq_ints_ctx->iova); + + /* Alloc memory for QINT's HW contexts */ + cfg = rvu_read64(rvu, blkaddr, NIX_AF_CONST2); + qints = (cfg >> 12) & 0xFFF; + hwctx_size = 1UL << ((ctx_cfg >> 20) & 0xF); + err = qmem_alloc(rvu->dev, &pfvf->nix_qints_ctx, qints, hwctx_size); + if (err) + return -ENOMEM; + + rvu_write64(rvu, blkaddr, NIX_AF_LFX_QINTS_BASE(nixlf), + (u64)pfvf->nix_qints_ctx->iova); + return 0; } diff --git a/drivers/net/ethernet/marvell/octeontx2/af/cn20k/reg.h b/drivers/net/ethernet/marvell/octeontx2/af/cn20k/reg.h index 58152a4024ec..df2d52567da7 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/cn20k/reg.h +++ b/drivers/net/ethernet/marvell/octeontx2/af/cn20k/reg.h @@ -19,6 +19,23 @@ /* RVU AF BAR0 Mbox registers for AF => PFx */ #define RVU_MBOX_AF_PFX_ADDR(a) (0x5000 | (a) << 4) #define RVU_MBOX_AF_PFX_CFG(a) (0x6000 | (a) << 4) +#define RVU_MBOX_AF_AFPFX_TRIGX(a) (0x9000 | (a) << 3) +#define RVU_MBOX_AF_PFAF_INT(a) (0x2980 | (a) << 6) +#define RVU_MBOX_AF_PFAF_INT_W1S(a) (0x2988 | (a) << 6) +#define RVU_MBOX_AF_PFAF_INT_ENA_W1S(a) (0x2990 | (a) << 6) +#define RVU_MBOX_AF_PFAF_INT_ENA_W1C(a) (0x2998 | (a) << 6) +#define RVU_MBOX_AF_PFAF1_INT(a) (0x29A0 | (a) << 6) +#define RVU_MBOX_AF_PFAF1_INT_W1S(a) (0x29A8 | (a) << 6) +#define RVU_MBOX_AF_PFAF1_INT_ENA_W1S(a) (0x29B0 | (a) << 6) +#define RVU_MBOX_AF_PFAF1_INT_ENA_W1C(a) (0x29B8 | (a) << 6) + +/* RVU PF => AF mbox registers */ +#define RVU_MBOX_PF_PFAF_TRIGX(a) (0xC00 | (a) << 3) +#define RVU_MBOX_PF_INT (0xC20) +#define RVU_MBOX_PF_INT_W1S (0xC28) +#define RVU_MBOX_PF_INT_ENA_W1S (0xC30) +#define RVU_MBOX_PF_INT_ENA_W1C (0xC38) + #define RVU_AF_BAR2_SEL (0x9000000) #define RVU_AF_BAR2_PFID (0x16400) #define NIX_CINTX_INT_W1S(a) (0xd30 | (a) << 12) diff --git a/drivers/net/ethernet/marvell/octeontx2/af/cn20k/struct.h b/drivers/net/ethernet/marvell/octeontx2/af/cn20k/struct.h new file mode 100644 index 000000000000..fccad6e422e8 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/af/cn20k/struct.h @@ -0,0 +1,25 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Marvell RVU Admin Function driver + * + * Copyright (C) 2024 Marvell. + * + */ + +#ifndef STRUCT_H +#define STRUCT_H + +/* RVU Admin function Interrupt Vector Enumeration */ +enum rvu_af_cn20k_int_vec_e { + RVU_AF_CN20K_INT_VEC_POISON = 0x0, + RVU_AF_CN20K_INT_VEC_PFFLR0 = 0x1, + RVU_AF_CN20K_INT_VEC_PFFLR1 = 0x2, + RVU_AF_CN20K_INT_VEC_PFME0 = 0x3, + RVU_AF_CN20K_INT_VEC_PFME1 = 0x4, + RVU_AF_CN20K_INT_VEC_GEN = 0x5, + RVU_AF_CN20K_INT_VEC_PFAF_MBOX0 = 0x6, + RVU_AF_CN20K_INT_VEC_PFAF_MBOX1 = 0x7, + RVU_AF_CN20K_INT_VEC_PFAF1_MBOX0 = 0x8, + RVU_AF_CN20K_INT_VEC_PFAF1_MBOX1 = 0x9, + RVU_AF_CN20K_INT_VEC_CNT = 0xa, +}; +#endif diff --git a/drivers/net/ethernet/marvell/octeontx2/af/mbox.c b/drivers/net/ethernet/marvell/octeontx2/af/mbox.c index 1e3e72107a9d..4ff3aa58d3d4 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/mbox.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/mbox.c @@ -46,8 +46,10 @@ void __otx2_mbox_reset(struct otx2_mbox *mbox, int devid) mdev->rsp_size = 0; tx_hdr->num_msgs = 0; tx_hdr->msg_size = 0; + tx_hdr->sig = 0; rx_hdr->num_msgs = 0; rx_hdr->msg_size = 0; + rx_hdr->sig = 0; } EXPORT_SYMBOL(__otx2_mbox_reset); @@ -71,9 +73,78 @@ void otx2_mbox_destroy(struct otx2_mbox *mbox) } EXPORT_SYMBOL(otx2_mbox_destroy); +int cn20k_mbox_setup(struct otx2_mbox *mbox, struct pci_dev *pdev, + void *reg_base, int direction, int ndevs) +{ + switch (direction) { + case MBOX_DIR_AFPF: + mbox->tx_start = MBOX_DOWN_TX_START; + mbox->rx_start = MBOX_DOWN_RX_START; + mbox->tx_size = MBOX_DOWN_TX_SIZE; + mbox->rx_size = MBOX_DOWN_RX_SIZE; + break; + case MBOX_DIR_PFAF: + mbox->tx_start = MBOX_DOWN_RX_START; + mbox->rx_start = MBOX_DOWN_TX_START; + mbox->tx_size = MBOX_DOWN_RX_SIZE; + mbox->rx_size = MBOX_DOWN_TX_SIZE; + break; + case MBOX_DIR_AFPF_UP: + mbox->tx_start = MBOX_UP_TX_START; + mbox->rx_start = MBOX_UP_RX_START; + mbox->tx_size = MBOX_UP_TX_SIZE; + mbox->rx_size = MBOX_UP_RX_SIZE; + break; + case MBOX_DIR_PFAF_UP: + mbox->tx_start = MBOX_UP_RX_START; + mbox->rx_start = MBOX_UP_TX_START; + mbox->tx_size = MBOX_UP_RX_SIZE; + mbox->rx_size = MBOX_UP_TX_SIZE; + break; + default: + return -ENODEV; + } + + switch (direction) { + case MBOX_DIR_AFPF: + mbox->trigger = RVU_MBOX_AF_AFPFX_TRIGX(1); + mbox->tr_shift = 4; + break; + case MBOX_DIR_AFPF_UP: + mbox->trigger = RVU_MBOX_AF_AFPFX_TRIGX(0); + mbox->tr_shift = 4; + break; + case MBOX_DIR_PFAF: + mbox->trigger = RVU_MBOX_PF_PFAF_TRIGX(0); + mbox->tr_shift = 0; + break; + case MBOX_DIR_PFAF_UP: + mbox->trigger = RVU_MBOX_PF_PFAF_TRIGX(1); + mbox->tr_shift = 0; + break; + default: + return -ENODEV; + } + mbox->reg_base = reg_base; + mbox->pdev = pdev; + + mbox->dev = kcalloc(ndevs, sizeof(struct otx2_mbox_dev), GFP_KERNEL); + if (!mbox->dev) { + otx2_mbox_destroy(mbox); + return -ENOMEM; + } + mbox->ndevs = ndevs; + + return 0; +} + static int otx2_mbox_setup(struct otx2_mbox *mbox, struct pci_dev *pdev, void *reg_base, int direction, int ndevs) { + if (is_cn20k(pdev)) + return cn20k_mbox_setup(mbox, pdev, reg_base, + direction, ndevs); + switch (direction) { case MBOX_DIR_AFPF: case MBOX_DIR_PFVF: @@ -252,7 +323,10 @@ static void otx2_mbox_msg_send_data(struct otx2_mbox *mbox, int devid, u64 data) spin_lock(&mdev->mbox_lock); - tx_hdr->msg_size = mdev->msg_size; + if (!tx_hdr->sig) { + tx_hdr->msg_size = mdev->msg_size; + tx_hdr->num_msgs = mdev->num_msgs; + } /* Reset header for next messages */ mdev->msg_size = 0; @@ -266,7 +340,6 @@ static void otx2_mbox_msg_send_data(struct otx2_mbox *mbox, int devid, u64 data) * messages. So this should be written after writing all the messages * to the shared memory. */ - tx_hdr->num_msgs = mdev->num_msgs; rx_hdr->num_msgs = 0; trace_otx2_msg_send(mbox->pdev, tx_hdr->num_msgs, tx_hdr->msg_size); @@ -324,6 +397,7 @@ struct mbox_msghdr *otx2_mbox_alloc_msg_rsp(struct otx2_mbox *mbox, int devid, { struct otx2_mbox_dev *mdev = &mbox->dev[devid]; struct mbox_msghdr *msghdr = NULL; + struct mbox_hdr *mboxhdr = NULL; spin_lock(&mdev->mbox_lock); size = ALIGN(size, MBOX_MSG_ALIGN); @@ -347,6 +421,11 @@ struct mbox_msghdr *otx2_mbox_alloc_msg_rsp(struct otx2_mbox *mbox, int devid, mdev->msg_size += size; mdev->rsp_size += size_rsp; msghdr->next_msgoff = mdev->msg_size + msgs_offset; + + mboxhdr = mdev->mbase + mbox->tx_start; + /* Clear the msg header region */ + memset(mboxhdr, 0, msgs_offset); + exit: spin_unlock(&mdev->mbox_lock); diff --git a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h index df64a18fe1d6..86d07fc4a7ff 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h +++ b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h @@ -13,6 +13,7 @@ #include "rvu_struct.h" #include "common.h" +#include "cn20k/struct.h" #define MBOX_SIZE SZ_64K diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu.c index a5ebd7cd3a5c..f3d61294452a 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu.c @@ -755,6 +755,11 @@ static void rvu_free_hw_resources(struct rvu *rvu) rvu_reset_msix(rvu); mutex_destroy(&rvu->rsrc_lock); + + /* Free the QINT/CINt memory */ + pfvf = &rvu->pf[RVU_AFPF]; + qmem_free(rvu->dev, pfvf->nix_qints_ctx); + qmem_free(rvu->dev, pfvf->cq_ints_ctx); } static void rvu_setup_pfvf_macaddress(struct rvu *rvu) @@ -814,13 +819,13 @@ static int rvu_fwdata_init(struct rvu *rvu) goto fail; BUILD_BUG_ON(offsetof(struct rvu_fwdata, cgx_fw_data) > FWDATA_CGX_LMAC_OFFSET); - rvu->fwdata = ioremap_wc(fwdbase, sizeof(struct rvu_fwdata)); + rvu->fwdata = (__force struct rvu_fwdata *)ioremap_wc(fwdbase, sizeof(struct rvu_fwdata)); if (!rvu->fwdata) goto fail; if (!is_rvu_fwdata_valid(rvu)) { dev_err(rvu->dev, "Mismatch in 'fwdata' struct btw kernel and firmware\n"); - iounmap(rvu->fwdata); + iounmap((void __iomem *)rvu->fwdata); rvu->fwdata = NULL; return -EINVAL; } @@ -833,7 +838,7 @@ static int rvu_fwdata_init(struct rvu *rvu) static void rvu_fwdata_exit(struct rvu *rvu) { if (rvu->fwdata) - iounmap(rvu->fwdata); + iounmap((void __iomem *)rvu->fwdata); } static int rvu_setup_nix_hw_resource(struct rvu *rvu, int blkaddr) @@ -2399,7 +2404,7 @@ static int rvu_get_mbox_regions(struct rvu *rvu, void **mbox_addr, bar4 = rvupf_read64(rvu, RVU_PF_VF_BAR4_ADDR); bar4 += region * MBOX_SIZE; } - mbox_addr[region] = (void *)ioremap_wc(bar4, MBOX_SIZE); + mbox_addr[region] = (__force void *)ioremap_wc(bar4, MBOX_SIZE); if (!mbox_addr[region]) goto error; } @@ -2422,7 +2427,7 @@ static int rvu_get_mbox_regions(struct rvu *rvu, void **mbox_addr, RVU_AF_PF_BAR4_ADDR); bar4 += region * MBOX_SIZE; } - mbox_addr[region] = (void *)ioremap_wc(bar4, MBOX_SIZE); + mbox_addr[region] = (__force void *)ioremap_wc(bar4, MBOX_SIZE); if (!mbox_addr[region]) goto error; } @@ -2683,6 +2688,11 @@ static void rvu_enable_mbox_intr(struct rvu *rvu) { struct rvu_hwinfo *hw = rvu->hw; + if (is_cn20k(rvu->pdev)) { + cn20k_rvu_enable_mbox_intr(rvu); + return; + } + /* Clear spurious irqs, if any */ rvu_write64(rvu, BLKADDR_RVUM, RVU_AF_PFAF_MBOX_INT, INTR_MASK(hw->total_pfs)); @@ -2936,9 +2946,12 @@ static void rvu_unregister_interrupts(struct rvu *rvu) rvu_cpt_unregister_interrupts(rvu); - /* Disable the Mbox interrupt */ - rvu_write64(rvu, BLKADDR_RVUM, RVU_AF_PFAF_MBOX_INT_ENA_W1C, - INTR_MASK(rvu->hw->total_pfs) & ~1ULL); + if (!is_cn20k(rvu->pdev)) + /* Disable the Mbox interrupt */ + rvu_write64(rvu, BLKADDR_RVUM, RVU_AF_PFAF_MBOX_INT_ENA_W1C, + INTR_MASK(rvu->hw->total_pfs) & ~1ULL); + else + cn20k_rvu_unregister_interrupts(rvu); /* Disable the PF FLR interrupt */ rvu_write64(rvu, BLKADDR_RVUM, RVU_AF_PFFLR_INT_ENA_W1C, @@ -3001,20 +3014,30 @@ static int rvu_register_interrupts(struct rvu *rvu) return ret; } - /* Register mailbox interrupt handler */ - sprintf(&rvu->irq_name[RVU_AF_INT_VEC_MBOX * NAME_SIZE], "RVUAF Mbox"); - ret = request_irq(pci_irq_vector - (rvu->pdev, RVU_AF_INT_VEC_MBOX), - rvu->ng_rvu->rvu_mbox_ops->pf_intr_handler, 0, - &rvu->irq_name[RVU_AF_INT_VEC_MBOX * - NAME_SIZE], rvu); - if (ret) { - dev_err(rvu->dev, - "RVUAF: IRQ registration failed for mbox\n"); - goto fail; - } + if (!is_cn20k(rvu->pdev)) { + /* Register mailbox interrupt handler */ + sprintf(&rvu->irq_name[RVU_AF_INT_VEC_MBOX * NAME_SIZE], + "RVUAF Mbox"); + ret = request_irq(pci_irq_vector + (rvu->pdev, RVU_AF_INT_VEC_MBOX), + rvu->ng_rvu->rvu_mbox_ops->pf_intr_handler, 0, + &rvu->irq_name[RVU_AF_INT_VEC_MBOX * + NAME_SIZE], rvu); + if (ret) { + dev_err(rvu->dev, + "RVUAF: IRQ registration failed for mbox\n"); + goto fail; + } - rvu->irq_allocated[RVU_AF_INT_VEC_MBOX] = true; + rvu->irq_allocated[RVU_AF_INT_VEC_MBOX] = true; + } else { + ret = cn20k_register_afpf_mbox_intr(rvu); + if (ret) { + dev_err(rvu->dev, + "RVUAF: IRQ registration failed for mbox\n"); + goto fail; + } + } /* Enable mailbox interrupts from all PFs */ rvu_enable_mbox_intr(rvu); @@ -3467,6 +3490,9 @@ static int rvu_probe(struct pci_dev *pdev, const struct pci_device_id *id) ptp_start(rvu, rvu->fwdata->sclk, rvu->fwdata->ptp_ext_clk_rate, rvu->fwdata->ptp_ext_tstamp); + /* Alloc CINT and QINT memory */ + rvu_alloc_cint_qint_mem(rvu, &rvu->pf[RVU_AFPF], BLKADDR_NIX0, + (rvu->hw->block[BLKADDR_NIX0].lf.max)); return 0; err_dl: rvu_unregister_dl(rvu); @@ -3518,6 +3544,8 @@ static void rvu_remove(struct pci_dev *pdev) pci_set_drvdata(pdev, NULL); devm_kfree(&pdev->dev, rvu->hw); + if (is_cn20k(rvu->pdev)) + cn20k_free_mbox_memory(rvu); kfree(rvu->ng_rvu); devm_kfree(&pdev->dev, rvu); } diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h index dc7b2c1797a8..e030e5297b3f 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h @@ -47,6 +47,9 @@ #define RVU_PFVF_FUNC_MASK rvu_pcifunc_func_mask #ifdef CONFIG_DEBUG_FS + +#define RVU_AFPF 25 + struct dump_ctx { int lf; int id; @@ -444,6 +447,16 @@ struct mbox_wq_info { struct workqueue_struct *mbox_wq; }; +struct rvu_irq_data { + u64 intr_status; + void (*rvu_queue_work_hdlr)(struct mbox_wq_info *mw, int first, + int mdevs, u64 intr); + struct rvu *rvu; + int vec_num; + int start; + int mdevs; +}; + struct mbox_ops { irqreturn_t (*pf_intr_handler)(int irq, void *rvu_irq); }; @@ -954,7 +967,8 @@ int rvu_nix_mcast_get_mce_index(struct rvu *rvu, u16 pcifunc, int rvu_nix_mcast_update_mcam_entry(struct rvu *rvu, u16 pcifunc, u32 mcast_grp_idx, u16 mcam_index); void rvu_nix_flr_free_bpids(struct rvu *rvu, u16 pcifunc); - +int rvu_alloc_cint_qint_mem(struct rvu *rvu, struct rvu_pfvf *pfvf, + int blkaddr, int nixlf); /* NPC APIs */ void rvu_npc_freemem(struct rvu *rvu); int rvu_npc_get_pkind(struct rvu *rvu, u16 pf); diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c index 6e0183f0d5a1..aa5ff0af6d72 100644 --- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c @@ -22,10 +22,10 @@ static void otx2_nix_rq_op_stats(struct queue_stats *stats, u64 incr = (u64)qidx << 32; u64 *ptr; - ptr = (u64 *)otx2_get_regaddr(pfvf, NIX_LF_RQ_OP_OCTS); + ptr = (__force u64 *)otx2_get_regaddr(pfvf, NIX_LF_RQ_OP_OCTS); stats->bytes = otx2_atomic64_add(incr, ptr); - ptr = (u64 *)otx2_get_regaddr(pfvf, NIX_LF_RQ_OP_PKTS); + ptr = (__force u64 *)otx2_get_regaddr(pfvf, NIX_LF_RQ_OP_PKTS); stats->pkts = otx2_atomic64_add(incr, ptr); } @@ -35,10 +35,10 @@ static void otx2_nix_sq_op_stats(struct queue_stats *stats, u64 incr = (u64)qidx << 32; u64 *ptr; - ptr = (u64 *)otx2_get_regaddr(pfvf, NIX_LF_SQ_OP_OCTS); + ptr = (__force u64 *)otx2_get_regaddr(pfvf, NIX_LF_SQ_OP_OCTS); stats->bytes = otx2_atomic64_add(incr, ptr); - ptr = (u64 *)otx2_get_regaddr(pfvf, NIX_LF_SQ_OP_PKTS); + ptr = (__force u64 *)otx2_get_regaddr(pfvf, NIX_LF_SQ_OP_PKTS); stats->pkts = otx2_atomic64_add(incr, ptr); } @@ -819,7 +819,7 @@ void otx2_sqb_flush(struct otx2_nic *pfvf) struct otx2_snd_queue *sq; u64 incr, *ptr, val; - ptr = (u64 *)otx2_get_regaddr(pfvf, NIX_LF_SQ_OP_STATUS); + ptr = (__force u64 *)otx2_get_regaddr(pfvf, NIX_LF_SQ_OP_STATUS); for (qidx = 0; qidx < otx2_get_total_tx_queues(pfvf); qidx++) { sq = &pfvf->qset.sq[qidx]; if (!sq->sqb_ptrs) diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c index e6b03bad2dba..a2ef3943f2e8 100644 --- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c @@ -593,8 +593,7 @@ static int otx2_pfvf_mbox_init(struct otx2_nic *pf, int numvfs) base = pci_resource_start(pf->pdev, PCI_MBOX_BAR_NUM) + MBOX_SIZE; else - base = readq((void __iomem *)((u64)pf->reg_base + - RVU_PF_VF_BAR4_ADDR)); + base = readq((pf->reg_base + RVU_PF_VF_BAR4_ADDR)); hwbase = ioremap_wc(base, MBOX_SIZE * pf->total_vfs); if (!hwbase) { @@ -643,7 +642,7 @@ static void otx2_pfvf_mbox_destroy(struct otx2_nic *pf) } if (mbox->mbox.hwbase) - iounmap(mbox->mbox.hwbase); + iounmap((void __iomem *)mbox->mbox.hwbase); otx2_mbox_destroy(&mbox->mbox); } @@ -1272,7 +1271,7 @@ static irqreturn_t otx2_q_intr_handler(int irq, void *data) /* CQ */ for (qidx = 0; qidx < pf->qset.cq_cnt; qidx++) { - ptr = otx2_get_regaddr(pf, NIX_LF_CQ_OP_INT); + ptr = (__force u64 *)otx2_get_regaddr(pf, NIX_LF_CQ_OP_INT); val = otx2_atomic64_add((qidx << 44), ptr); otx2_write64(pf, NIX_LF_CQ_OP_INT, (qidx << 44) | @@ -1311,7 +1310,7 @@ static irqreturn_t otx2_q_intr_handler(int irq, void *data) * these are fatal errors. */ - ptr = otx2_get_regaddr(pf, NIX_LF_SQ_OP_INT); + ptr = (__force u64 *)otx2_get_regaddr(pf, NIX_LF_SQ_OP_INT); val = otx2_atomic64_add((qidx << 44), ptr); otx2_write64(pf, NIX_LF_SQ_OP_INT, (qidx << 44) | (val & NIX_SQINT_BITS));

[net-next,v3,3/6] octeontx2-af: CN20k mbox to support AF REQ/ACK functionality

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